diff --git a/specs/01-requirements/01-04-access-control.md b/specs/01-requirements/business-rules/01-04-access-control.md similarity index 100% rename from specs/01-requirements/01-04-access-control.md rename to specs/01-requirements/business-rules/01-04-access-control.md diff --git a/specs/03-implementation/03-04-document-numbering.md b/specs/01-requirements/business-rules/03-04-document-numbering.md similarity index 100% rename from specs/03-implementation/03-04-document-numbering.md rename to specs/01-requirements/business-rules/03-04-document-numbering.md diff --git a/specs/05-decisions/ADR-004-rbac-implementation.md b/specs/01-requirements/business-rules/ADR-004-rbac-implementation.md similarity index 100% rename from specs/05-decisions/ADR-004-rbac-implementation.md rename to specs/01-requirements/business-rules/ADR-004-rbac-implementation.md diff --git a/specs/01-requirements/01-03.11-document-numbering.md b/specs/01-requirements/business-rules/document-numbering.md similarity index 100% rename from specs/01-requirements/01-03.11-document-numbering.md rename to specs/01-requirements/business-rules/document-numbering.md diff --git a/specs/01-requirements/01-03.1-project-management.md b/specs/01-requirements/modules/01-03.1-project-management.md similarity index 100% rename from specs/01-requirements/01-03.1-project-management.md rename to specs/01-requirements/modules/01-03.1-project-management.md diff --git a/specs/01-requirements/01-03.12-json-details.md b/specs/01-requirements/modules/01-03.12-json-details.md similarity index 100% rename from specs/01-requirements/01-03.12-json-details.md rename to specs/01-requirements/modules/01-03.12-json-details.md diff --git a/specs/01-requirements/01-03.2-correspondence.md b/specs/01-requirements/modules/01-03.2-correspondence.md similarity index 100% rename from specs/01-requirements/01-03.2-correspondence.md rename to specs/01-requirements/modules/01-03.2-correspondence.md diff --git a/specs/01-requirements/01-03.3-rfa.md b/specs/01-requirements/modules/01-03.3-rfa.md similarity index 100% rename from specs/01-requirements/01-03.3-rfa.md rename to specs/01-requirements/modules/01-03.3-rfa.md diff --git a/specs/01-requirements/01-03.4-contract-drawing.md b/specs/01-requirements/modules/01-03.4-contract-drawing.md similarity index 100% rename from specs/01-requirements/01-03.4-contract-drawing.md rename to specs/01-requirements/modules/01-03.4-contract-drawing.md diff --git a/specs/01-requirements/01-03.5-shop-drawing.md b/specs/01-requirements/modules/01-03.5-shop-drawing.md similarity index 100% rename from specs/01-requirements/01-03.5-shop-drawing.md rename to specs/01-requirements/modules/01-03.5-shop-drawing.md diff --git a/specs/01-requirements/01-03.6-unified-workflow.md b/specs/01-requirements/modules/01-03.6-unified-workflow.md similarity index 100% rename from specs/01-requirements/01-03.6-unified-workflow.md rename to specs/01-requirements/modules/01-03.6-unified-workflow.md diff --git a/specs/01-requirements/01-03.7-transmittals.md b/specs/01-requirements/modules/01-03.7-transmittals.md similarity index 100% rename from specs/01-requirements/01-03.7-transmittals.md rename to specs/01-requirements/modules/01-03.7-transmittals.md diff --git a/specs/01-requirements/01-03.8-circulation-sheet.md b/specs/01-requirements/modules/01-03.8-circulation-sheet.md similarity index 100% rename from specs/01-requirements/01-03.8-circulation-sheet.md rename to specs/01-requirements/modules/01-03.8-circulation-sheet.md diff --git a/specs/01-requirements/01-03.9-logs.md b/specs/01-requirements/modules/01-03.9-logs.md similarity index 100% rename from specs/01-requirements/01-03.9-logs.md rename to specs/01-requirements/modules/01-03.9-logs.md diff --git a/specs/01-requirements/01-02-architecture.md b/specs/02-architecture/01-02-architecture.md similarity index 100% rename from specs/01-requirements/01-02-architecture.md rename to specs/02-architecture/01-02-architecture.md diff --git a/specs/08-infrastructure/03_Securities.md b/specs/02-architecture/03_Securities.md similarity index 100% rename from specs/08-infrastructure/03_Securities.md rename to specs/02-architecture/03_Securities.md diff --git a/specs/05-decisions/ADR-007-api-design-error-handling.md b/specs/02-architecture/ADR-007-api-design-error-handling.md similarity index 100% rename from specs/05-decisions/ADR-007-api-design-error-handling.md rename to specs/02-architecture/ADR-007-api-design-error-handling.md diff --git a/specs/03-Data-and-Storage/03-01-data-dictionary.md b/specs/03-Data-and-Storage/03-01-data-dictionary.md new file mode 100644 index 0000000..18906d4 --- /dev/null +++ b/specs/03-Data-and-Storage/03-01-data-dictionary.md @@ -0,0 +1,2115 @@ +--- +title: 'Data & Storage: Data Dictionary and Data Model Architecture' +version: 1.8.0 +status: released +owner: Nattanin Peancharoen +last_updated: 2026-02-22 +related: + - specs/01-requirements/02-architecture.md + - specs/01-requirements/03-functional-requirements.md + - docs/4_Data_Dictionary_V1_4_5.md + - docs/8_lcbp3_v1_4_5.sql +--- + +# 1. Data Model Architecture Overview + +## 📋 1.1 Overview +เอกสารนี้อธิบายสถาปัตยกรรมของ Data Model สำหรับระบบ LCBP3-DMS โดยครอบคลุมโครงสร้างฐานข้อมูล, ความสัมพันธ์ระหว่างตาราง, และหลักการออกแบบที่สำคัญ + +## 🎯 1.2 Design Principles +### 1. Separation of Concerns + +- **Master-Revision Pattern**: แยกข้อมูลที่ไม่เปลี่ยนแปลง (Master) จากข้อมูลที่มีการแก้ไข (Revisions) + - `correspondences` (Master) ↔ `correspondence_revisions` (Revisions) + - `rfas` (Master) ↔ `rfa_revisions` (Revisions) + - `shop_drawings` (Master) ↔ `shop_drawing_revisions` (Revisions) + +### 2. Data Integrity + +- **Foreign Key Constraints**: ใช้ FK ทุกความสัมพันธ์เพื่อรักษาความสมบูรณ์ของข้อมูล +- **Soft Delete**: ใช้ `deleted_at` แทนการลบข้อมูลจริง เพื่อรักษาประวัติ +- **Optimistic Locking**: ใช้ `version` column ใน `document_number_counters` ป้องกัน Race Condition + +### 3. Flexibility & Extensibility + +- **JSON Details Field**: เก็บข้อมูลเฉพาะประเภทใน `correspondence_revisions.details` +- **Virtual Columns**: สร้าง Index จาก JSON fields สำหรับ Performance +- **Master Data Tables**: แยกข้อมูล Master (Types, Status, Codes) เพื่อความยืดหยุ่น + +### 4. Security & Audit + +- **RBAC (Role-Based Access Control)**: ระบบสิทธิ์แบบ Hierarchical Scope +- **Audit Trail**: บันทึกผู้สร้าง/แก้ไข และเวลาในทุกตาราง +- **Two-Phase File Upload**: ป้องกันไฟล์ขยะด้วย Temporary Storage + +# 2. Database Schema Overview (ERD) +### Entity Relationship Diagram + +```mermaid +erDiagram + %% Core Entities + organizations ||--o{ users : "employs" + projects ||--o{ contracts : "contains" + projects ||--o{ correspondences : "manages" + + %% RBAC + users ||--o{ user_assignments : "has" + roles ||--o{ user_assignments : "assigned_to" + roles ||--o{ role_permissions : "has" + permissions ||--o{ role_permissions : "granted_by" + + %% Correspondences + correspondences ||--o{ correspondence_revisions : "has_revisions" + correspondence_types ||--o{ correspondences : "categorizes" + correspondence_status ||--o{ correspondence_revisions : "defines_state" + disciplines ||--o{ correspondences : "classifies" + + %% RFAs + rfas ||--o{ rfa_revisions : "has_revisions" + rfa_types ||--o{ rfas : "categorizes" + rfa_status_codes ||--o{ rfa_revisions : "defines_state" + rfa_approve_codes ||--o{ rfa_revisions : "defines_result" + disciplines ||--o{ rfas : "classifies" + + %% Drawings + shop_drawings ||--o{ shop_drawing_revisions : "has_revisions" + shop_drawing_main_categories ||--o{ shop_drawings : "categorizes" + shop_drawing_sub_categories ||--o{ shop_drawings : "sub_categorizes" + + %% Attachments + attachments ||--o{ correspondence_attachments : "attached_to" + correspondences ||--o{ correspondence_attachments : "has" +``` + +--- + +# 3. Data Dictionary V1.8.0 + +> หมายเหตุ: PK = Primary Key, FK = Foreign Key, AI = AUTO_INCREMENT. รูปแบบ Soft Delete จะปรากฏ Column `deleted_at DATETIME NULL` เป็นมาตรฐาน + +## **1. 🏢 Core & Master Data Tables (องค์กร, โครงการ, สัญญา)** + +### 1.1 organization_roles + +* * Purpose **: MASTER TABLE FOR organization role TYPES IN the system | COLUMN Name | Data TYPE | Constraints | Description | | ----------- | ----------- | --------------------------- | ---------------------------------------------------------------- | +| id | INT | PRIMARY KEY, +AUTO_INCREMENT | UNIQUE identifier FOR organization role | | role_name | VARCHAR(20) | NOT NULL, +UNIQUE | Role name ( + CONTRACTOR, + THIRD PARTY +) | +| created_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP | Record creation timestamp | +| updated_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP ON UPDATE | Last update timestamp | +| deleted_at | DATETIME | NULL | Soft delete timestamp | ** INDEXES **: - PRIMARY KEY (id) - UNIQUE (role_name) ** Business Rules **: - Predefined system roles FOR organization TYPES - Cannot be deleted IF referenced by organizations --- + +### 1.2 organizations + +* * Purpose **: MASTER TABLE storing ALL organizations involved IN the system | COLUMN Name | Data TYPE | Constraints | Description | | ----------------- | ------------ | ----------------------------------- | ---------------------------------------- | +| id | INT | PRIMARY KEY, +AUTO_INCREMENT | UNIQUE identifier FOR organization | | organization_code | VARCHAR(20) | NOT NULL, +UNIQUE | Organization code (e.g., 'กทท.', 'TEAM') | | organization_name | VARCHAR(255) | NOT NULL | FULL organization name | | is_active | BOOLEAN | DEFAULT TRUE | Active STATUS (1 = active, 0 = inactive) | | created_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP | Record creation timestamp | | updated_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP ON UPDATE | Last +UPDATE timestamp | +| deleted_at | DATETIME | NULL | Soft delete timestamp | ** INDEXES **: - PRIMARY KEY (id) - UNIQUE (organization_code) - INDEX (is_active) ** Relationships **: - Referenced by: users, + project_organizations, + contract_organizations, + correspondences, + circulations --- + + ### 1.3 projects + + * * Purpose **: MASTER TABLE FOR ALL projects IN the system | COLUMN Name | Data TYPE | Constraints | Description | | ------------ | ------------ | --------------------------- | ----------------------------- | + | id | INT | PRIMARY KEY, + AUTO_INCREMENT | UNIQUE identifier FOR project | | project_code | VARCHAR(50) | NOT NULL, + UNIQUE | Project code (e.g., 'LCBP3') | | project_name | VARCHAR(255) | NOT NULL | FULL project name | | is_active | TINYINT(1) | DEFAULT 1 | Active STATUS | +| created_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP | Record creation timestamp | +| updated_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP ON UPDATE | Last update timestamp | +| deleted_at | DATETIME | NULL | Soft delete timestamp | +** INDEXES **: - PRIMARY KEY (id) - UNIQUE (project_code) - INDEX (is_active) ** Relationships **: - Referenced by: contracts, + correspondences, + document_number_formats, + drawings --- + + ### 1.4 contracts + + * * Purpose **: MASTER TABLE FOR contracts within projects | COLUMN Name | Data TYPE | Constraints | Description | | ------------- | ------------ | ----------------------------------- | ------------------------------ | + | id | INT | PRIMARY KEY, + AUTO_INCREMENT | UNIQUE identifier FOR contract | | project_id | INT | NOT NULL, + FK | Reference TO projects TABLE | | contract_code | VARCHAR(50) | NOT NULL, + UNIQUE | Contract code | | contract_name | VARCHAR(255) | NOT NULL | FULL contract name | | description | TEXT | NULL | Contract description | | start_date | DATE | NULL | Contract START date | | end_date | DATE | NULL | Contract +END date | | is_active | BOOLEAN | DEFAULT TRUE | Active STATUS | | created_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP | Record creation timestamp | | updated_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP ON UPDATE | Last +UPDATE timestamp | +| deleted_at | DATETIME | NULL | Soft delete timestamp | ** INDEXES **: - PRIMARY KEY (id) - UNIQUE (contract_code) - FOREIGN KEY (project_id) REFERENCES projects(id) ON DELETE CASCADE - INDEX (project_id, is_active) ** Relationships **: - Parent: projects - Referenced by: contract_organizations, + user_assignments --- + + ### 1.5 disciplines (NEW v1.5.1) + + * * Purpose **: เก็บข้อมูลสาขางาน (Disciplines) แยกตามสัญญา (Req 6B) | COLUMN Name | Data TYPE | Constraints | Description | |: -------------- | :----------- | :----------- | :--------------------- | + | id | INT | PK, + AI | UNIQUE identifier | | contract_id | INT | FK, + NOT NULL | ผูกกับสัญญา | | discipline_code | VARCHAR(10) | NOT NULL | รหัสสาขา (เช่น GEN, STR) | | code_name_th | VARCHAR(255) | NULL | ชื่อไทย | | code_name_en | VARCHAR(255) | NULL | ชื่ออังกฤษ | | is_active | TINYINT(1) | DEFAULT 1 | สถานะการใช้งาน | ** INDEXES **: - UNIQUE (contract_id, discipline_code) --- + + ## **2. 👥 Users & RBAC Tables (ผู้ใช้, สิทธิ์, บทบาท)** + + ### 2.1 users + + * * Purpose **: MASTER TABLE storing ALL system users | COLUMN Name | Data TYPE | Constraints | Description | | ----------------------- | ------------ | ----------------------------------- | -------------------------------- | + | user_id | INT | PRIMARY KEY, + AUTO_INCREMENT | UNIQUE identifier FOR user | | username | VARCHAR(50) | NOT NULL, + UNIQUE | Login username | | password_hash | VARCHAR(255) | NOT NULL | Hashed PASSWORD (bcrypt) | | first_name | VARCHAR(50) | NULL | User 's first name | +| last_name | VARCHAR(50) | NULL | User' s last name | | email | VARCHAR(100) | NOT NULL, + UNIQUE | Email address | | line_id | VARCHAR(100) | NULL | LINE messenger ID | | primary_organization_id | INT | NULL, + FK | PRIMARY organization affiliation | | is_active | TINYINT(1) | DEFAULT 1 | Active STATUS | | failed_attempts | INT | DEFAULT 0 | Failed login attempts counter | | locked_until | DATETIME | NULL | Account LOCK expiration time | | last_login_at | TIMESTAMP | NULL | Last successful login timestamp | | created_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP | Record creation timestamp | | updated_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP ON UPDATE | Last +UPDATE timestamp | | deleted_at | DATETIME | NULL | Deleted at | ** INDEXES **: - PRIMARY KEY (user_id) - UNIQUE (username) - UNIQUE (email) - FOREIGN KEY (primary_organization_id) REFERENCES organizations(id) ON DELETE +SET NULL - INDEX (is_active) - INDEX (email) ** Relationships **: - Parent: organizations (primary_organization_id) - Referenced by: user_assignments, + audit_logs, + notifications, + circulation_routings --- + + ### 2.2 roles + + * * Purpose **: MASTER TABLE defining system roles WITH scope levels | COLUMN Name | Data TYPE | Constraints | Description | | ----------- | ------------ | --------------------------- | ---------------------------------------------------- | + | role_id | INT | PRIMARY KEY, + AUTO_INCREMENT | UNIQUE identifier FOR role | | role_name | VARCHAR(100) | NOT NULL | Role name (e.g., 'Superadmin', 'Document Control') | | scope | ENUM | NOT NULL | Scope LEVEL: GLOBAL, + Organization, + Project, + Contract | | description | TEXT | NULL | Role description | | is_system | BOOLEAN | DEFAULT FALSE | System role flag (cannot be deleted) | +| created_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP | Record creation timestamp | +| updated_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP ON UPDATE | Last update timestamp | +| deleted_at | DATETIME | NULL | Soft delete timestamp | +** INDEXES **: - PRIMARY KEY (role_id) - INDEX (scope) ** Relationships **: - Referenced by: role_permissions, + user_assignments --- + + ### 2.3 permissions + + * * Purpose **: MASTER TABLE defining ALL system permissions | COLUMN Name | Data TYPE | Constraints | Description | | --------------- | ------------ | --------------------------- | ------------------------------------------------------ | + | permission_id | INT | PRIMARY KEY, + AUTO_INCREMENT | UNIQUE identifier FOR permission | | permission_name | VARCHAR(100) | NOT NULL, + UNIQUE | Permission code (e.g., 'rfas.create', 'document.view') | | description | TEXT | NULL | Permission description | | module | VARCHAR(50) | NULL | Related module name | | scope_level | ENUM | NULL | Scope: GLOBAL, + ORG, + PROJECT | | is_active | TINYINT(1) | DEFAULT 1 | Active STATUS | +| created_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP | Record creation timestamp | +| updated_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP ON UPDATE | Last update timestamp | +| deleted_at | DATETIME | NULL | Soft delete timestamp | +** INDEXES **: - PRIMARY KEY (permission_id) - UNIQUE (permission_name) - INDEX (module) - INDEX (scope_level) - INDEX (is_active) ** Relationships **: - Referenced by: role_permissions --- + + ### 2.4 role_permissions + + * * Purpose **: Junction TABLE mapping roles TO permissions (M :N) | COLUMN Name | Data TYPE | Constraints | Description | | ------------- | --------- | --------------- | ------------------------------ | + | role_id | INT | PRIMARY KEY, + FK | Reference TO roles TABLE | | permission_id | INT | PRIMARY KEY, + FK | Reference TO permissions TABLE | ** INDEXES **: - PRIMARY KEY (role_id, permission_id) - FOREIGN KEY (role_id) REFERENCES roles(role_id) ON DELETE CASCADE - FOREIGN KEY (permission_id) REFERENCES permissions(permission_id) ON DELETE CASCADE - INDEX (permission_id) ** Relationships **: - Parent: roles, + permissions --- + + ### 2.5 user_assignments + + * * Purpose **: Junction TABLE assigning users TO roles WITH scope context | COLUMN Name | Data TYPE | Constraints | Description | | ------------------- | --------- | --------------------------- | ---------------------------------- | + | id | INT | PRIMARY KEY, + AUTO_INCREMENT | UNIQUE identifier | | user_id | INT | NOT NULL, + FK | Reference TO users TABLE | | role_id | INT | NOT NULL, + FK | Reference TO roles TABLE | | organization_id | INT | NULL, + FK | Organization scope (IF applicable) | | project_id | INT | NULL, + FK | Project scope (IF applicable) | | contract_id | INT | NULL, + FK | Contract scope (IF applicable) | | assigned_by_user_id | INT | NULL, + FK | User who made the assignment | | assigned_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP | Assignment timestamp | ** INDEXES **: - PRIMARY KEY (id) - FOREIGN KEY (user_id) REFERENCES users(user_id) ON DELETE CASCADE - FOREIGN KEY (role_id) REFERENCES roles(role_id) ON DELETE CASCADE - FOREIGN KEY (organization_id) REFERENCES organizations(id) ON DELETE CASCADE - FOREIGN KEY (project_id) REFERENCES projects(id) ON DELETE CASCADE - FOREIGN KEY (contract_id) REFERENCES contracts(id) ON DELETE CASCADE - FOREIGN KEY (assigned_by_user_id) REFERENCES users(user_id) - INDEX (user_id, role_id) - INDEX (organization_id) - INDEX (project_id) - INDEX (contract_id) ** Relationships **: - Parent: users, + roles, + organizations, + projects, + contracts --- + + ### 2.6 project_organizations + + * * Purpose **: Junction TABLE linking projects TO participating organizations (M :N) | COLUMN Name | Data TYPE | Constraints | Description | | --------------- | --------- | --------------- | -------------------------------- | + | project_id | INT | PRIMARY KEY, + FK | Reference TO projects TABLE | | organization_id | INT | PRIMARY KEY, + FK | Reference TO organizations TABLE | ** INDEXES **: - PRIMARY KEY (project_id, organization_id) - FOREIGN KEY (project_id) REFERENCES projects(id) ON DELETE CASCADE - FOREIGN KEY (organization_id) REFERENCES organizations(id) ON DELETE CASCADE - INDEX (organization_id) ** Relationships **: - Parent: projects, + organizations --- + + ### 2.7 contract_organizations + + * * Purpose **: Junction TABLE linking contracts TO participating organizations WITH roles (M :N) | COLUMN Name | Data TYPE | Constraints | Description | | ---------------- | ------------ | --------------- | ------------------------------------------------------------------------- | + | contract_id | INT | PRIMARY KEY, + FK | Reference TO contracts TABLE | | organization_id | INT | PRIMARY KEY, + FK | Reference TO organizations TABLE | | role_in_contract | VARCHAR(100) | NULL | Organization 's role in contract (Owner, Designer, Consultant, Contractor) | + +**Indexes**: + +* PRIMARY KEY (contract_id, organization_id) +* FOREIGN KEY (contract_id) REFERENCES contracts(id) ON DELETE CASCADE +* FOREIGN KEY (organization_id) REFERENCES organizations(id) ON DELETE CASCADE +* INDEX (organization_id) +* INDEX (role_in_contract) + +**Relationships**: + +* Parent: contracts, organizations + +--- + +### 2.8 user_preferences (NEW v1.5.1) + +**Purpose**: เก็บการตั้งค่าส่วนตัวของผู้ใช้ (Req 5.5, 6.8.3) + +| Column Name | Data Type | Constraints | Description | +| :----------- | :---------- | :---------------- | :-------------- | +| user_id | INT | PK, FK | User ID | +| notify_email | BOOLEAN | DEFAULT TRUE | รับอีเมลแจ้งเตือน | +| notify_line | BOOLEAN | DEFAULT TRUE | รับไลน์แจ้งเตือน | +| digest_mode | BOOLEAN | DEFAULT FALSE | รับแจ้งเตือนแบบรวม | +| ui_theme | VARCHAR(20) | DEFAULT ' light ' | UI Theme | + +--- + +### 2.9 refresh_tokens (NEW v1.5.1) + +**Purpose**: เก็บ Refresh Tokens สำหรับการทำ Authentication และ Token Rotation + +| Column Name | Data Type | Constraints | Description | +| :---------------- | :----------- | :------------------------ | :------------------------------------ | +| token_id | INT | PK, AI | Unique Token ID | +| user_id | INT | FK, NOT NULL | เจ้าของ Token | +| token_hash | VARCHAR(255) | NOT NULL | Hash ของ Refresh Token (Security) | +| expires_at | DATETIME | NOT NULL | วันหมดอายุของ Token | +| is_revoked | BOOLEAN | DEFAULT FALSE | สถานะถูกยกเลิก (True = ใช้งานไม่ได้) | +| created_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP | เวลาที่สร้าง | +| replaced_by_token | VARCHAR(255) | NULL | Token ใหม่ที่มาแทนที่ (กรณี Token Rotation) | + +**Indexes**: + +* PRIMARY KEY (token_id) +* FOREIGN KEY (user_id) REFERENCES users(user_id) ON DELETE CASCADE +* INDEX (user_id) + +**Relationships**: + +* Parent: users + +--- + +## **3. ✉️ Correspondences Tables (เอกสารหลัก, Revisions, Workflows)** + +### 3.1 correspondence_types + +**Purpose**: Master table for correspondence document types + +| Column Name | Data Type | Constraints | Description | +| ----------- | ------------ | --------------------------- | --------------------------------------------------- | +| id | INT | PRIMARY KEY, AUTO_INCREMENT | Unique identifier | +| type_code | VARCHAR(50) | NOT NULL, UNIQUE | Type code (e.g., ' RFA ', ' RFI ', ' TRANSMITTAL ') | +| type_name | VARCHAR(255) | NOT NULL | Full type name | +| sort_order | INT | DEFAULT 0 | Display order | +| is_active | TINYINT(1) | DEFAULT 1 | Active status | +| created_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP | Record creation timestamp | +| updated_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP | Last update timestamp | +| deleted_at | DATETIME | NULL | Soft delete timestamp | + +**Indexes**: + +* PRIMARY KEY (id) +* UNIQUE (type_code) +* INDEX (is_active) +* INDEX (sort_order) + +**Relationships**: + +* Referenced by: correspondences, document_number_formats, document_number_counters + +--- + +### 3.2 correspondence_sub_types (NEW v1.5.1) + +**Purpose**: เก็บประเภทหนังสือย่อย (Sub Types) สำหรับ Mapping เลขรหัส (Req 6B) + +| Column Name | Data Type | Constraints | Description | +| :--------------------- | :----------- | :----------- | :------------------------ | +| id | INT | PK, AI | Unique identifier | +| contract_id | INT | FK, NOT NULL | ผูกกับสัญญา | +| correspondence_type_id | INT | FK, NOT NULL | ผูกกับประเภทเอกสารหลัก | +| sub_type_code | VARCHAR(20) | NOT NULL | รหัสย่อย (เช่น MAT, SHP) | +| sub_type_name | VARCHAR(255) | NULL | ชื่อประเภทหนังสือย่อย | +| sub_type_number | VARCHAR(10) | NULL | เลขรหัสสำหรับ Running Number | + +--- + +### 3.3 correspondences (UPDATE v1.7.0) + +**Purpose**: Master table for correspondence documents (non-revisioned data) + +| Column Name | Data Type | Constraints | Description | +| ------------------------- | ------------ | --------------------------- | ------------------------------------------ | +| id | INT | PRIMARY KEY, AUTO_INCREMENT | Master correspondence ID | +| correspondence_number | VARCHAR(100) | NOT NULL | Document number (from numbering system) | +| correspondence_type_id | INT | NOT NULL, FK | Reference to correspondence_types | +| **discipline_id** | **INT** | **NULL, FK** | **[NEW] สาขางาน (ถ้ามี)** | +| is_internal_communication | TINYINT(1) | DEFAULT 0 | Internal (1) or external (0) communication | +| project_id | INT | NOT NULL, FK | Reference to projects table | +| originator_id | INT | NULL, FK | Originating organization | +| created_at | DATETIME | DEFAULT CURRENT_TIMESTAMP | Record creation timestamp | +| created_by | INT | NULL, FK | User who created the record | +| deleted_at | DATETIME | NULL | Soft delete timestamp | + +**Indexes**: + +* PRIMARY KEY (id) +* FOREIGN KEY (correspondence_type_id) REFERENCES correspondence_types(id) ON DELETE RESTRICT +* **FOREIGN KEY (discipline_id) REFERENCES disciplines(id) ON DELETE SET NULL** +* FOREIGN KEY (project_id) REFERENCES projects(id) ON DELETE CASCADE +* FOREIGN KEY (originator_id) REFERENCES organizations(id) ON DELETE SET NULL +* FOREIGN KEY (created_by) REFERENCES users(user_id) ON DELETE SET NULL +* UNIQUE KEY (project_id, correspondence_number) +* INDEX (correspondence_type_id) +* INDEX (originator_id) +* INDEX (deleted_at) + +**Relationships**: + +* Parent: correspondence_types, **disciplines**, projects, organizations, users +* Children: correspondence_revisions, correspondence_recipients, correspondence_tags, correspondence_references, correspondence_attachments, circulations, transmittals + +--- + +### 3.4 correspondence_revisions (UPDATE v1.7.0) + +**Purpose**: Child table storing revision history of correspondences (1:N) + +| Column Name | Data Type | Constraints | Description | +| ------------------------ | ------------ | --------------------------------- | -------------------------------------------------------- | +| id | INT | PRIMARY KEY, AUTO_INCREMENT | Unique revision ID | +| correspondence_id | INT | NOT NULL, FK | Master correspondence ID | +| revision_number | INT | NOT NULL | Revision sequence (0, 1, 2...) | +| revision_label | VARCHAR(10) | NULL | Display revision (A, B, 1.1...) | +| is_current | BOOLEAN | DEFAULT FALSE | Current revision flag | +| correspondence_status_id | INT | NOT NULL, FK | Current status of this revision | +| title | VARCHAR(255) | NOT NULL | Document title | +| document_date | DATE | NULL | Document date | +| issued_date | DATETIME | NULL | Issue date | +| received_date | DATETIME | NULL | Received date | +| due_date | DATETIME | NULL | Due date for response | +| description | TEXT | NULL | Revision description | +| details | JSON | NULL | Type-specific details (e.g., RFI questions) | +| created_at | DATETIME | DEFAULT CURRENT_TIMESTAMP | Revision creation timestamp | +| created_by | INT | NULL, FK | User who created revision | +| updated_by | INT | NULL, FK | User who last updated | +| v_ref_project_id | INT | GENERATED ALWAYS AS (...) VIRTUAL | Virtual Column ดึง Project ID จาก JSON details เพื่อทำ Index | + +| v_doc_subtype | VARCHAR(50) | GENERATED ALWAYS AS (...) VIRTUAL | Virtual Column ดึง Type จาก JSON details | +| schema_version | INT | DEFAULT 1 | Version of the schema used with this details | + +**Indexes**: + +* PRIMARY KEY (id) +* FOREIGN KEY (correspondence_id) REFERENCES correspondences(id) ON DELETE CASCADE +* FOREIGN KEY (correspondence_status_id) REFERENCES correspondence_status(id) ON DELETE RESTRICT +* FOREIGN KEY (created_by) REFERENCES users(user_id) ON DELETE SET NULL +* FOREIGN KEY (updated_by) REFERENCES users(user_id) ON DELETE SET NULL +* UNIQUE KEY (correspondence_id, revision_number) +* UNIQUE KEY (correspondence_id, is_current) +* INDEX (correspondence_status_id) +* INDEX (is_current) +* INDEX (document_date) +* INDEX (issued_date) +* INDEX (v_ref_project_id) +* INDEX (v_doc_subtype) + +--- + +### 3.5 correspondence_recipients + +**Purpose**: Junction table for correspondence recipients (TO/CC) (M:N) + +| Column Name | Data Type | Constraints | Description | +| ------------------------- | -------------------- | --------------- | ---------------------------- | +| correspondence_id | INT | PRIMARY KEY, FK | Reference to correspondences | +| recipient_organization_id | INT | PRIMARY KEY, FK | Recipient organization | +| recipient_type | ENUM(' TO ', ' CC ') | PRIMARY KEY | Recipient type | + +**Indexes**: + +* PRIMARY KEY (correspondence_id, recipient_organization_id, recipient_type) +* FOREIGN KEY (correspondence_id) REFERENCES correspondence_revisions(correspondence_id) ON DELETE CASCADE +* FOREIGN KEY (recipient_organization_id) REFERENCES organizations(id) ON DELETE RESTRICT +* INDEX (recipient_organization_id) +* INDEX (recipient_type) + +**Relationships**: + +* Parent: correspondences, organizations + +--- + +### 3.6 tags + +**Purpose**: Master table for document tagging system + +| Column Name | Data Type | Constraints | Description | +| ----------- | ------------ | ----------------------------------- | ------------------------- | +| id | INT | PRIMARY KEY, AUTO_INCREMENT | Unique tag ID | +| tag_name | VARCHAR(100) | NOT NULL, UNIQUE | Tag name | +| description | TEXT | NULL | Tag description | +| created_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP | Record creation timestamp | +| updated_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP ON UPDATE | Last update timestamp | + +**Indexes**: + +* PRIMARY KEY (id) +* UNIQUE (tag_name) +* INDEX (tag_name) - For autocomplete + +**Relationships**: + +* Referenced by: correspondence_tags + +--- + +### 3.7 correspondence_tags + +**Purpose**: Junction table linking correspondences to tags (M:N) + +| Column Name | Data Type | Constraints | Description | +| ----------------- | --------- | --------------- | ---------------------------- | +| correspondence_id | INT | PRIMARY KEY, FK | Reference to correspondences | +| tag_id | INT | PRIMARY KEY, FK | Reference to tags | + +**Indexes**: + +* PRIMARY KEY (correspondence_id, tag_id) +* FOREIGN KEY (correspondence_id) REFERENCES correspondences(id) ON DELETE CASCADE +* FOREIGN KEY (tag_id) REFERENCES tags(id) ON DELETE CASCADE +* INDEX (tag_id) + +**Relationships**: + +* Parent: correspondences, tags + +--- + +### 3.8 correspondence_references + +**Purpose**: Junction table for cross-referencing correspondences (M:N) + +| Column Name | Data Type | Constraints | Description | +| --------------------- | --------- | --------------- | ------------------------------------- | +| src_correspondence_id | INT | PRIMARY KEY, FK | Source correspondence ID | +| tgt_correspondence_id | INT | PRIMARY KEY, FK | Target (referenced) correspondence ID | + +**Indexes**: + +* PRIMARY KEY (src_correspondence_id, tgt_correspondence_id) +* FOREIGN KEY (src_correspondence_id) REFERENCES correspondences(id) ON DELETE CASCADE +* FOREIGN KEY (tgt_correspondence_id) REFERENCES correspondences(id) ON DELETE CASCADE +* INDEX (tgt_correspondence_id) + +**Relationships**: + +* Parent: correspondences (both sides) + +--- + +## **4. 📐 approval: RFA Tables (เอกสารขออนุมัติ, Workflows)** + +### 4.1 rfa_types (UPDATE v1.7.0) + +**Purpose**: Master table for RFA (Request for Approval) types + +| Column Name | Data Type | Constraints | Description | +| :----------- | :----------- | :-------------------------- | :------------------------------ | +| id | INT | PRIMARY KEY, AUTO_INCREMENT | Unique identifier | +| contract_id | INT | NOT NULL, FK | Contract reference | +| type_code | VARCHAR(20) | NOT NULL | Type code (DWG, DOC, MAT, etc.) | +| type_name_th | VARCHAR(100) | NOT NULL | Full type name (TH) | +| type_name_en | VARCHAR(100) | NOT NULL | Full type name (EN) | +| remark | TEXT | NULL | Remark | +| is_active | TINYINT(1) | DEFAULT 1 | Active status | + +**Indexes**: + +* PRIMARY KEY (id) +* UNIQUE (contract_id, type_code) +* FOREIGN KEY (contract_id) REFERENCES contracts(id) ON DELETE CASCADE +* INDEX (is_active) + +**Relationships**: + +* Referenced by: rfas + +--- + +### 4.2 rfa_status_codes + +**Purpose**: Master table for RFA status codes + +| Column Name | Data Type | Constraints | Description | +| ----------- | ------------ | --------------------------- | --------------------------------- | +| id | INT | PRIMARY KEY, AUTO_INCREMENT | Unique identifier | +| status_code | VARCHAR(20) | NOT NULL, UNIQUE | Status code (DFT, FAP, FRE, etc.) | +| status_name | VARCHAR(100) | NOT NULL | Full status name | +| description | TEXT | NULL | Status description | +| sort_order | INT | DEFAULT 0 | Display order | +| is_active | TINYINT(1) | DEFAULT 1 | Active status | + +**Indexes**: + +* PRIMARY KEY (id) +* UNIQUE (status_code) +* INDEX (is_active) +* INDEX (sort_order) + +**Relationships**: + +* Referenced by: rfa_revisions + +--- + +### 4.3 rfa_approve_codes + +**Purpose**: Master table for RFA approval result codes + +| Column Name | Data Type | Constraints | Description | +| ------------ | ------------ | --------------------------- | -------------------------------- | +| id | INT | PRIMARY KEY, AUTO_INCREMENT | Unique identifier | +| approve_code | VARCHAR(20) | NOT NULL, UNIQUE | Approval code (1A, 1C, 3R, etc.) | +| approve_name | VARCHAR(100) | NOT NULL | Full approval name | +| description | TEXT | NULL | Code description | +| sort_order | INT | DEFAULT 0 | Display order | +| is_active | TINYINT(1) | DEFAULT 1 | Active status | + +**Indexes**: + +* PRIMARY KEY (id) +* UNIQUE (approve_code) +* INDEX (is_active) +* INDEX (sort_order) + +**Relationships**: + +* Referenced by: rfa_revisions + +--- + +### 4.4 rfas (UPDATE v1.7.0) + +**Purpose**: Master table for RFA documents (non-revisioned data) + +| Column Name | Data Type | Constraints | Description | +| :---------- | :-------- | :------------------------ | :------------------------------------------ | +| id | INT | PK, FK | Master RFA ID (Shared with correspondences) | +| rfa_type_id | INT | NOT NULL, FK | Reference to rfa_types | +| created_at | DATETIME | DEFAULT CURRENT_TIMESTAMP | Record creation timestamp | +| created_by | INT | NULL, FK | User who created the record | +| deleted_at | DATETIME | NULL | Soft delete timestamp | + +**Indexes**: + +* PRIMARY KEY (id) +* FOREIGN KEY (id) REFERENCES correspondences(id) ON DELETE CASCADE +* FOREIGN KEY (rfa_type_id) REFERENCES rfa_types(id) +* FOREIGN KEY (created_by) REFERENCES users(user_id) ON DELETE SET NULL +* INDEX (rfa_type_id) +* INDEX (deleted_at) + +**Relationships**: + +* Parent: correspondences, rfa_types, users +* Children: rfa_revisions + +--- + +### 4.5 rfa_revisions (UPDATE v1.7.0) + +**Purpose**: Child table storing revision history of RFAs (1:N) + +| Column Name | Data Type | Constraints | Description | +| ----------- | --------- | --------------------------- | ------------------ | +| id | INT | PRIMARY KEY, AUTO_INCREMENT | Unique revision ID | + +| rfa_id | INT | NOT NULL, FK | Master RFA ID | +| revision_number | INT | NOT NULL | Revision sequence (0, 1, 2...) | +| revision_label | VARCHAR(10) | NULL | Display revision (A, B, 1.1...) | +| is_current | BOOLEAN | DEFAULT FALSE | Current revision flag | +| rfa_status_code_id | INT | NOT NULL, FK | Current RFA status | +| rfa_approve_code_id | INT | NULL, FK | Approval result code | +| title | VARCHAR(255) | NOT NULL | RFA title | +| document_date | DATE | NULL | Document date | +| issued_date | DATE | NULL | Issue date for approval | +| received_date | DATETIME | NULL | Received date | +| approved_date | DATE | NULL | Approval date | +| description | TEXT | NULL | Revision description | +| created_at | DATETIME | DEFAULT CURRENT_TIMESTAMP | Revision creation timestamp | +| created_by | INT | NULL, FK | User who created revision | +| updated_by | INT | NULL, FK | User who last updated | +| details | JSON | NULL | Type-specific details (e.g., RFI questions) | +| v_ref_drawing_count | INT | GENERATED ALWAYS AS (...) VIRTUAL | Virtual Column ดึง Drawing Count จาก JSON details เพื่อทำ Index | +| schema_version | INT | DEFAULT 1 | Version of the schema used with this details | + +**Indexes**: + +* PRIMARY KEY (id) +* FOREIGN KEY (rfa_id) REFERENCES rfas(id) ON DELETE CASCADE +* FOREIGN KEY (rfa_status_code_id) REFERENCES rfa_status_codes(id) +* FOREIGN KEY (rfa_approve_code_id) REFERENCES rfa_approve_codes(id) ON DELETE SET NULL +* FOREIGN KEY (created_by) REFERENCES users(user_id) ON DELETE SET NULL +* FOREIGN KEY (updated_by) REFERENCES users(user_id) ON DELETE SET NULL +* UNIQUE KEY (rfa_id, revision_number) +* UNIQUE KEY (rfa_id, is_current) +* INDEX (rfa_status_code_id) +* INDEX (rfa_approve_code_id) +* INDEX (is_current) +* INDEX (v_ref_drawing_count): ตัวอย่างการ Index ข้อมูลตัวเลขใน JSON + +**Relationships**: + +* Parent: correspondences, rfas, rfa_status_codes, rfa_approve_codes, users +* Children: rfa_items + +--- + +### 4.6 rfa_items + +**Purpose**: Junction table linking RFA revisions to shop drawing revisions (M:N) + +| Column Name | Data Type | Constraints | Description | +| :----------------------- | :-------- | :-------------- | :----------------------- | +| rfa_revision_id | INT | PRIMARY KEY, FK | RFA Revision ID | +| shop_drawing_revision_id | INT | PRIMARY KEY, FK | Shop drawing revision ID | + +**Indexes**: + +* PRIMARY KEY (rfa_revision_id, shop_drawing_revision_id) +* FOREIGN KEY (rfa_revision_id) REFERENCES rfa_revisions(id) ON DELETE CASCADE +* FOREIGN KEY (shop_drawing_revision_id) REFERENCES shop_drawing_revisions(id) ON DELETE CASCADE +* INDEX (shop_drawing_revision_id) + +**Relationships**: + +* Parent: rfa_revisions, shop_drawing_revisions + +**Business Rules**: + +* Used primarily for RFA type = ' DWG ' (Shop Drawing) +* One RFA can contain multiple shop drawings +* One shop drawing can be referenced by multiple RFAs + +--- + + +--- + +## **5. 📐 Drawings Tables (แบบ, หมวดหมู่)** + +### 5.1 contract_drawing_volumes + +**Purpose**: Master table for contract drawing volume classification + +| Column Name | Data Type | Constraints | Description | +| ----------- | ------------ | ----------------------------------- | ------------------------- | +| id | INT | PRIMARY KEY, AUTO_INCREMENT | Unique volume ID | +| project_id | INT | NOT NULL, FK | Reference to projects | +| volume_code | VARCHAR(50) | NOT NULL | Volume code | +| volume_name | VARCHAR(255) | NOT NULL | Volume name | +| description | TEXT | NULL | Volume description | +| sort_order | INT | DEFAULT 0 | Display order | +| created_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP | Record creation timestamp | +| updated_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP ON UPDATE | Last update timestamp | + +**Indexes**: + +* PRIMARY KEY (id) +* FOREIGN KEY (project_id) REFERENCES projects(id) ON DELETE CASCADE +* UNIQUE KEY (project_id, volume_code) +* INDEX (sort_order) + +**Relationships**: + +* Parent: projects +* Referenced by: contract_drawings + +**Business Rules**: + +* Volume codes must be unique within a project +* Used for organizing large sets of contract drawings + +--- + +### 5.2 contract_drawing_cats + +**Purpose**: Master table for contract drawing main categories + +| Column Name | Data Type | Constraints | Description | +| ----------- | ------------ | ----------------------------------- | ------------------------- | +| id | INT | PRIMARY KEY, AUTO_INCREMENT | Unique category ID | +| project_id | INT | NOT NULL, FK | Reference to projects | +| cat_code | VARCHAR(50) | NOT NULL | Category code | +| cat_name | VARCHAR(255) | NOT NULL | Category name | +| description | TEXT | NULL | Category description | +| sort_order | INT | DEFAULT 0 | Display order | +| created_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP | Record creation timestamp | +| updated_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP ON UPDATE | Last update timestamp | + +**Indexes**: + +* PRIMARY KEY (id) +* FOREIGN KEY (project_id) REFERENCES projects(id) ON DELETE CASCADE +* UNIQUE KEY (project_id, cat_code) +* INDEX (sort_order) + +**Relationships**: + +* Parent: projects +* Referenced by: contract_drawing_subcat_cat_maps + +**Business Rules**: + +* Category codes must be unique within a project +* Hierarchical relationship with sub-categories via mapping table + +--- + +### 5.3 contract_drawing_sub_cats + +**Purpose**: Master table for contract drawing sub-categories + +| Column Name | Data Type | Constraints | Description | +| ------------ | ------------ | ----------------------------------- | ------------------------- | +| id | INT | PRIMARY KEY, AUTO_INCREMENT | Unique sub-category ID | +| project_id | INT | NOT NULL, FK | Reference to projects | +| sub_cat_code | VARCHAR(50) | NOT NULL | Sub-category code | +| sub_cat_name | VARCHAR(255) | NOT NULL | Sub-category name | +| description | TEXT | NULL | Sub-category description | +| sort_order | INT | DEFAULT 0 | Display order | +| created_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP | Record creation timestamp | +| updated_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP ON UPDATE | Last update timestamp | + +**Indexes**: + +* PRIMARY KEY (id) +* FOREIGN KEY (project_id) REFERENCES projects(id) ON DELETE CASCADE +* UNIQUE KEY (project_id, sub_cat_code) +* INDEX (sort_order) + +**Relationships**: + +* Parent: projects +* Referenced by: contract_drawings, contract_drawing_subcat_cat_maps + +**Business Rules**: + +* Sub-category codes must be unique within a project +* Can be mapped to multiple main categories via mapping table + +--- + +### 5.4 contract_drawing_subcat_cat_maps (UPDATE v1.7.0) + +**Purpose**: Junction table mapping sub-categories to main categories (M:N) + +| Column Name | Data Type | Constraints | Description | +| ----------- | --------- | ------------------------------- | -------------------------- | +| **id** | **INT** | **PRIMARY KEY, AUTO_INCREMENT** | **Unique mapping ID** | +| project_id | INT | NOT NULL, FK | Reference to projects | +| sub_cat_id | INT | NOT NULL, FK | Reference to sub-category | +| cat_id | INT | NOT NULL, FK | Reference to main category | + +**Indexes**: + +* PRIMARY KEY (id) +* **UNIQUE KEY (project_id, sub_cat_id, cat_id)** +* FOREIGN KEY (project_id) REFERENCES projects(id) ON DELETE CASCADE +* FOREIGN KEY (sub_cat_id) REFERENCES contract_drawing_sub_cats(id) ON DELETE CASCADE +* FOREIGN KEY (cat_id) REFERENCES contract_drawing_cats(id) ON DELETE CASCADE +* INDEX (sub_cat_id) +* INDEX (cat_id) + +**Relationships**: + +* Parent: projects, contract_drawing_sub_cats, contract_drawing_cats +* Referenced by: contract_drawings + +**Business Rules**: + +* Allows flexible categorization +* One sub-category can belong to multiple main categories +* Composite uniqueness enforced via UNIQUE constraint + +--- + +### 5.5 contract_drawings (UPDATE v1.7.0) + +**Purpose**: Master table for contract drawings (from contract specifications) + +| Column Name | Data Type | Constraints | Description | +| --------------- | ------------ | ----------------------------------- | ---------------------------------------- | +| id | INT | PRIMARY KEY, AUTO_INCREMENT | Unique drawing ID | +| project_id | INT | NOT NULL, FK | Reference to projects | +| condwg_no | VARCHAR(255) | NOT NULL | Contract drawing number | +| title | VARCHAR(255) | NOT NULL | Drawing title | +| **map_cat_id** | **INT** | **NULL, FK** | **[CHANGED] Reference to mapping table** | +| volume_id | INT | NULL, FK | Reference to volume | +| **volume_page** | **INT** | **NULL** | **[NEW] Page number within volume** | +| created_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP | Record creation timestamp | +| updated_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP ON UPDATE | Last update timestamp | +| deleted_at | DATETIME | NULL | Soft delete timestamp | +| updated_by | INT | NULL, FK | User who last updated | + +**Indexes**: + +* PRIMARY KEY (id) +* FOREIGN KEY (project_id) REFERENCES projects(id) ON DELETE CASCADE +* **FOREIGN KEY (map_cat_id) REFERENCES contract_drawing_subcat_cat_maps(id) ON DELETE RESTRICT** +* FOREIGN KEY (volume_id) REFERENCES contract_drawing_volumes(id) ON DELETE RESTRICT +* FOREIGN KEY (updated_by) REFERENCES users(user_id) +* UNIQUE KEY (project_id, condwg_no) +* INDEX (map_cat_id) +* INDEX (volume_id) +* INDEX (deleted_at) + +**Relationships**: + +* Parent: projects, contract_drawing_subcat_cat_maps, contract_drawing_volumes, users +* Referenced by: shop_drawing_revision_contract_refs, contract_drawing_attachments + +**Business Rules**: + +* Drawing numbers must be unique within a project +* Represents baseline/contract drawings +* Referenced by shop drawings for compliance tracking +* Soft delete preserves history +* **map_cat_id references the mapping table for flexible categorization** + +--- + +### 5.6 shop_drawing_main_categories (UPDATE v1.7.0) + +**Purpose**: Master table for shop drawing main categories (discipline-level) + +| Column Name | Data Type | Constraints | Description | +| ------------------ | ------------ | ----------------------------------- | ------------------------------------ | +| id | INT | PRIMARY KEY, AUTO_INCREMENT | Unique category ID | +| **project_id** | **INT** | **NOT NULL, FK** | **[NEW] Reference to projects** | +| main_category_code | VARCHAR(50) | NOT NULL, UNIQUE | Category code (ARCH, STR, MEP, etc.) | +| main_category_name | VARCHAR(255) | NOT NULL | Category name | +| description | TEXT | NULL | Category description | +| sort_order | INT | DEFAULT 0 | Display order | +| is_active | TINYINT(1) | DEFAULT 1 | Active status | +| created_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP | Record creation timestamp | +| updated_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP ON UPDATE | Last update timestamp | + +**Indexes**: + +* PRIMARY KEY (id) +* **FOREIGN KEY (project_id) REFERENCES projects(id)** +* UNIQUE (main_category_code) +* INDEX (is_active) +* INDEX (sort_order) + +**Relationships**: + +* **Parent: projects** +* Referenced by: shop_drawings, asbuilt_drawings + +**Business Rules**: + +* **[CHANGED] Project-specific categories (was global)** +* Typically represents engineering disciplines + +--- + +### 5.7 shop_drawing_sub_categories (UPDATE v1.7.0) + +**Purpose**: Master table for shop drawing sub-categories (component-level) + +| Column Name | Data Type | Constraints | Description | +| ----------------- | ------------ | ----------------------------------- | ----------------------------------------------- | +| id | INT | PRIMARY KEY, AUTO_INCREMENT | Unique sub-category ID | +| **project_id** | **INT** | **NOT NULL, FK** | **[NEW] Reference to projects** | +| sub_category_code | VARCHAR(50) | NOT NULL, UNIQUE | Sub-category code (STR-COLUMN, ARCH-DOOR, etc.) | +| sub_category_name | VARCHAR(255) | NOT NULL | Sub-category name | +| description | TEXT | NULL | Sub-category description | +| sort_order | INT | DEFAULT 0 | Display order | +| is_active | TINYINT(1) | DEFAULT 1 | Active status | +| created_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP | Record creation timestamp | +| updated_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP ON UPDATE | Last update timestamp | + +**Indexes**: + +* PRIMARY KEY (id) +* **FOREIGN KEY (project_id) REFERENCES projects(id)** +* UNIQUE (sub_category_code) +* INDEX (is_active) +* INDEX (sort_order) + +**Relationships**: + +* **Parent: projects** +* Referenced by: shop_drawings, asbuilt_drawings + +**Business Rules**: + +* **[CHANGED] Project-specific sub-categories (was global)** +* **[REMOVED] No longer hierarchical under main categories** +* Represents specific drawing types or components + +--- + +### 5.8 shop_drawings (UPDATE v1.7.0) + +**Purpose**: Master table for shop drawings (contractor-submitted) + +| Column Name | Data Type | Constraints | Description | +| ---------------- | ------------ | ----------------------------------- | -------------------------- | +| id | INT | PRIMARY KEY, AUTO_INCREMENT | Unique drawing ID | +| project_id | INT | NOT NULL, FK | Reference to projects | +| drawing_number | VARCHAR(100) | NOT NULL, UNIQUE | Shop drawing number | +| main_category_id | INT | NOT NULL, FK | Reference to main category | +| sub_category_id | INT | NOT NULL, FK | Reference to sub-category | +| created_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP | Record creation timestamp | +| updated_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP ON UPDATE | Last update timestamp | +| deleted_at | DATETIME | NULL | Soft delete timestamp | +| updated_by | INT | NULL, FK | User who last updated | + +**Indexes**: + +* PRIMARY KEY (id) +* UNIQUE (drawing_number) +* FOREIGN KEY (project_id) REFERENCES projects(id) +* FOREIGN KEY (main_category_id) REFERENCES shop_drawing_main_categories(id) +* FOREIGN KEY (sub_category_id) REFERENCES shop_drawing_sub_categories(id) +* FOREIGN KEY (updated_by) REFERENCES users(user_id) +* INDEX (project_id) +* INDEX (main_category_id) +* INDEX (sub_category_id) +* INDEX (deleted_at) + +**Relationships**: + +* Parent: projects, shop_drawing_main_categories, shop_drawing_sub_categories, users +* Children: shop_drawing_revisions + +**Business Rules**: + +* Drawing numbers are globally unique across all projects +* Represents contractor shop drawings +* Can have multiple revisions +* Soft delete preserves history +* **[CHANGED] Title moved to shop_drawing_revisions table** + +--- + +### 5.9 shop_drawing_revisions (UPDATE v1.7.0) + +**Purpose**: Child table storing revision history of shop drawings (1:N) + +| Column Name | Data Type | Constraints | Description | +| ------------------------- | ---------------- | --------------------------- | ---------------------------------------- | +| id | INT | PRIMARY KEY, AUTO_INCREMENT | Unique revision ID | +| shop_drawing_id | INT | NOT NULL, FK | Master shop drawing ID | +| revision_number | INT | NOT NULL | Revision sequence (0, 1, 2...) | +| revision_label | VARCHAR(10) | NULL | Display revision (A, B, C...) | +| revision_date | DATE | NULL | Revision date | +| **title** | **VARCHAR(500)** | **NOT NULL** | **[NEW] Drawing title** | +| description | TEXT | NULL | Revision description/changes | +| **legacy_drawing_number** | **VARCHAR(100)** | **NULL** | **[NEW] Original/legacy drawing number** | +| created_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP | Revision creation timestamp | + +**Indexes**: + +* PRIMARY KEY (id) +* FOREIGN KEY (shop_drawing_id) REFERENCES shop_drawings(id) ON DELETE CASCADE +* UNIQUE KEY (shop_drawing_id, revision_number) +* INDEX (revision_date) + +**Relationships**: + +* Parent: shop_drawings +* Referenced by: rfa_items, shop_drawing_revision_contract_refs, shop_drawing_revision_attachments, asbuilt_revision_shop_revisions_refs + +**Business Rules**: + +* Revision numbers are sequential starting from 0 +* Each revision can reference multiple contract drawings +* Each revision can have multiple file attachments +* Linked to RFAs for approval tracking +* **[NEW] Title stored at revision level for version-specific naming** +* **[NEW] legacy_drawing_number supports data migration from old systems** + +--- + +### 5.10 shop_drawing_revision_contract_refs + +**Purpose**: Junction table linking shop drawing revisions to referenced contract drawings (M:N) + +| Column Name | Data Type | Constraints | Description | +| ------------------------ | --------- | --------------- | ---------------------------------- | +| shop_drawing_revision_id | INT | PRIMARY KEY, FK | Reference to shop drawing revision | +| contract_drawing_id | INT | PRIMARY KEY, FK | Reference to contract drawing | + +**Indexes**: + +* PRIMARY KEY (shop_drawing_revision_id, contract_drawing_id) +* FOREIGN KEY (shop_drawing_revision_id) REFERENCES shop_drawing_revisions(id) ON DELETE CASCADE +* FOREIGN KEY (contract_drawing_id) REFERENCES contract_drawings(id) ON DELETE CASCADE +* INDEX (contract_drawing_id) + +**Relationships**: + +* Parent: shop_drawing_revisions, contract_drawings + +**Business Rules**: + +* Tracks which contract drawings each shop drawing revision is based on +* Ensures compliance with contract specifications +* One shop drawing revision can reference multiple contract drawings + +--- + +### 5.11 asbuilt_drawings (NEW v1.7.0) + +**Purpose**: Master table for AS Built drawings (final construction records) + +| Column Name | Data Type | Constraints | Description | +| ---------------- | ------------ | ----------------------------------- | -------------------------- | +| id | INT | PRIMARY KEY, AUTO_INCREMENT | Unique drawing ID | +| project_id | INT | NOT NULL, FK | Reference to projects | +| drawing_number | VARCHAR(100) | NOT NULL, UNIQUE | AS Built drawing number | +| main_category_id | INT | NOT NULL, FK | Reference to main category | +| sub_category_id | INT | NOT NULL, FK | Reference to sub-category | +| created_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP | Record creation timestamp | +| updated_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP ON UPDATE | Last update timestamp | +| deleted_at | DATETIME | NULL | Soft delete timestamp | +| updated_by | INT | NULL, FK | User who last updated | + +**Indexes**: + +* PRIMARY KEY (id) +* UNIQUE (drawing_number) +* FOREIGN KEY (project_id) REFERENCES projects(id) +* FOREIGN KEY (main_category_id) REFERENCES shop_drawing_main_categories(id) +* FOREIGN KEY (sub_category_id) REFERENCES shop_drawing_sub_categories(id) +* FOREIGN KEY (updated_by) REFERENCES users(user_id) +* INDEX (project_id) +* INDEX (main_category_id) +* INDEX (sub_category_id) +* INDEX (deleted_at) + +**Relationships**: + +* Parent: projects, shop_drawing_main_categories, shop_drawing_sub_categories, users +* Children: asbuilt_drawing_revisions + +**Business Rules**: + +* Drawing numbers are globally unique across all projects +* Represents final as-built construction drawings +* Can have multiple revisions +* Soft delete preserves history +* Uses same category structure as shop drawings + +--- + +### 5.12 asbuilt_drawing_revisions (NEW v1.7.0) + +**Purpose**: Child table storing revision history of AS Built drawings (1:N) + +| Column Name | Data Type | Constraints | Description | +| --------------------- | ------------ | --------------------------- | ------------------------------ | +| id | INT | PRIMARY KEY, AUTO_INCREMENT | Unique revision ID | +| asbuilt_drawing_id | INT | NOT NULL, FK | Master AS Built drawing ID | +| revision_number | INT | NOT NULL | Revision sequence (0, 1, 2...) | +| revision_label | VARCHAR(10) | NULL | Display revision (A, B, C...) | +| revision_date | DATE | NULL | Revision date | +| title | VARCHAR(500) | NOT NULL | Drawing title | +| description | TEXT | NULL | Revision description/changes | +| legacy_drawing_number | VARCHAR(100) | NULL | Original/legacy drawing number | +| created_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP | Revision creation timestamp | + +**Indexes**: + +* PRIMARY KEY (id) +* FOREIGN KEY (asbuilt_drawing_id) REFERENCES asbuilt_drawings(id) ON DELETE CASCADE +* UNIQUE KEY (asbuilt_drawing_id, revision_number) +* INDEX (revision_date) + +**Relationships**: + +* Parent: asbuilt_drawings +* Referenced by: asbuilt_revision_shop_revisions_refs, asbuilt_drawing_revision_attachments + +**Business Rules**: + +* Revision numbers are sequential starting from 0 +* Each revision can reference multiple shop drawing revisions +* Each revision can have multiple file attachments +* Title stored at revision level for version-specific naming +* legacy_drawing_number supports data migration from old systems + +--- + +### 5.13 asbuilt_revision_shop_revisions_refs (NEW v1.7.0) + +**Purpose**: Junction table linking AS Built drawing revisions to shop drawing revisions (M:N) + +| Column Name | Data Type | Constraints | Description | +| --------------------------- | --------- | --------------- | ---------------------------------- | +| asbuilt_drawing_revision_id | INT | PRIMARY KEY, FK | Reference to AS Built revision | +| shop_drawing_revision_id | INT | PRIMARY KEY, FK | Reference to shop drawing revision | + +**Indexes**: + +* PRIMARY KEY (asbuilt_drawing_revision_id, shop_drawing_revision_id) +* FOREIGN KEY (asbuilt_drawing_revision_id) REFERENCES asbuilt_drawing_revisions(id) ON DELETE CASCADE +* FOREIGN KEY (shop_drawing_revision_id) REFERENCES shop_drawing_revisions(id) ON DELETE CASCADE +* INDEX (shop_drawing_revision_id) + +**Relationships**: + +* Parent: asbuilt_drawing_revisions, shop_drawing_revisions + +**Business Rules**: + +* Tracks which shop drawings each AS Built drawing revision is based on +* Maintains construction document lineage +* One AS Built revision can reference multiple shop drawing revisions +* Supports traceability from final construction to approved shop drawings + +--- + +### 5.14 asbuilt_drawing_revision_attachments (NEW v1.7.0) + +**Purpose**: Junction table linking AS Built drawing revisions to file attachments (M:N) + +| Column Name | Data Type | Constraints | Description | +| --------------------------- | ------------------------------------- | --------------- | ------------------------------------- | +| asbuilt_drawing_revision_id | INT | PRIMARY KEY, FK | Reference to AS Built revision | +| attachment_id | INT | PRIMARY KEY, FK | Reference to attachment file | +| file_type | ENUM('PDF', 'DWG', 'SOURCE', 'OTHER') | NULL | File type classification | +| is_main_document | BOOLEAN | DEFAULT FALSE | Main document flag (1 = primary file) | + +**Indexes**: + +* PRIMARY KEY (asbuilt_drawing_revision_id, attachment_id) +* FOREIGN KEY (asbuilt_drawing_revision_id) REFERENCES asbuilt_drawing_revisions(id) ON DELETE CASCADE +* FOREIGN KEY (attachment_id) REFERENCES attachments(id) ON DELETE CASCADE +* INDEX (attachment_id) + +**Relationships**: + +* Parent: asbuilt_drawing_revisions, attachments + +**Business Rules**: + +* Each AS Built revision can have multiple file attachments +* File types: PDF (documents), DWG (CAD files), SOURCE (source files), OTHER (miscellaneous) +* One attachment can be marked as main document per revision +* Cascade delete when revision is deleted + +--- + +## **6. 🔄 Circulations Tables (ใบเวียนภายใน)** + +### 6.1 circulation_status_codes + +**Purpose**: Master table for circulation workflow status codes + +| Column Name | Data Type | Constraints | Description | +| ----------- | ----------- | --------------------------- | --------------------------------------------------- | +| id | INT | PRIMARY KEY, AUTO_INCREMENT | Unique status ID | +| code | VARCHAR(20) | NOT NULL, UNIQUE | Status code (OPEN, IN_REVIEW, COMPLETED, CANCELLED) | +| description | VARCHAR(50) | NOT NULL | Status description | +| sort_order | INT | DEFAULT 0 | Display order | +| is_active | TINYINT(1) | DEFAULT 1 | Active status | + +**Indexes**: + +* PRIMARY KEY (id) +* UNIQUE (code) +* INDEX (is_active) +* INDEX (sort_order) + +**Relationships**: + +* Referenced by: circulations + +**Seed Data**: 4 status codes + +* OPEN: Initial status when created +* IN_REVIEW: Under review by recipients +* COMPLETED: All recipients have responded +* CANCELLED: Withdrawn/cancelled + +--- + +### 6.2 circulations + +**Purpose**: Master table for internal circulation sheets (document routing) + +| Column Name | Data Type | Constraints | Description | +| ----------------------- | ------------ | ----------------------------------- | ----------------------------------------- | +| id | INT | PRIMARY KEY, AUTO_INCREMENT | Unique circulation ID | +| correspondence_id | INT | UNIQUE, FK | Link to correspondence (1:1 relationship) | +| organization_id | INT | NOT NULL, FK | Organization that owns this circulation | +| circulation_no | VARCHAR(100) | NOT NULL | Circulation sheet number | +| circulation_subject | VARCHAR(500) | NOT NULL | Subject/title | +| circulation_status_code | VARCHAR(20) | NOT NULL, FK | Current status code | +| created_by_user_id | INT | NOT NULL, FK | User who created circulation | +| submitted_at | TIMESTAMP | NULL | Submission timestamp | +| closed_at | TIMESTAMP | NULL | Closure timestamp | +| created_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP | Record creation timestamp | +| updated_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP ON UPDATE | Last update timestamp | + +**Indexes**: + +* PRIMARY KEY (id) +* UNIQUE (correspondence_id) +* FOREIGN KEY (correspondence_id) REFERENCES correspondences(id) +* FOREIGN KEY (organization_id) REFERENCES organizations(id) +* FOREIGN KEY (circulation_status_code) REFERENCES circulation_status_codes(code) +* FOREIGN KEY (created_by_user_id) REFERENCES users(user_id) +* INDEX (organization_id) +* INDEX (circulation_status_code) +* INDEX (created_by_user_id) + +**Relationships**: + +* Parent: correspondences, organizations, circulation_status_codes, users +* Children: circulation_routings, circulation_attachments + +**Business Rules**: + +* Internal document routing within organization +* One-to-one relationship with correspondences +* Tracks document review/approval workflow +* Status progression: OPEN → IN_REVIEW → COMPLETED/CANCELLED + +--- + +## **7. 📤 Transmittals Tables (เอกสารนำส่ง)** + +### 7.1 transmittals + +**Purpose**: Child table for transmittal-specific data (1:1 with correspondences) + +| Column Name | Data Type | Constraints | Description | +| ----------------- | --------- | --------------- | --------------------------------------------------------- | +| correspondence_id | INT | PRIMARY KEY, FK | Reference to correspondences (1:1) | +| purpose | ENUM | NULL | Purpose: FOR_APPROVAL, FOR_INFORMATION, FOR_REVIEW, OTHER | +| remarks | TEXT | NULL | Additional remarks | + +**Indexes**: + +* PRIMARY KEY (correspondence_id) +* FOREIGN KEY (correspondence_id) REFERENCES correspondences(id) ON DELETE CASCADE +* INDEX (purpose) + +**Relationships**: + +* Parent: correspondences +* Children: transmittal_items + +**Business Rules**: + +* One-to-one relationship with correspondences +* Transmittal is a correspondence type for forwarding documents +* Contains metadata about the transmission + +--- + +### 7.2 transmittal_items + +**Purpose**: Junction table listing documents included in transmittal (M:N) + +| Column Name | Data Type | Constraints | Description | +| ---------------------- | ------------ | --------------------------- | --------------------------------------- | +| id | INT | PRIMARY KEY, AUTO_INCREMENT | Unique item ID | +| transmittal_id | INT | NOT NULL, FK | Reference to transmittal | +| item_correspondence_id | INT | NOT NULL, FK | Reference to document being transmitted | +| quantity | INT | DEFAULT 1 | Number of copies | +| remarks | VARCHAR(255) | NULL | Item-specific remarks | + +**Indexes**: + +* PRIMARY KEY (id) +* FOREIGN KEY (transmittal_id) REFERENCES transmittals(correspondence_id) ON DELETE CASCADE +* FOREIGN KEY (item_correspondence_id) REFERENCES correspondences(id) ON DELETE CASCADE +* UNIQUE KEY (transmittal_id, item_correspondence_id) +* INDEX (item_correspondence_id) + +**Relationships**: + +* Parent: transmittals, correspondences + +**Business Rules**: + +* One transmittal can contain multiple documents +* Tracks quantity of physical copies (if applicable) +* Links to any type of correspondence document + +--- + +## **8. 📎 File Management Tables (ไฟล์แนบ)** + +### 8.1 attachments + +**Purpose**: Central repository for all file attachments in the system + +| Column Name | Data Type | Constraints | Description | +| ------------------- | ------------ | --------------------------- | -------------------------------------------------------------- | +| id | INT | PRIMARY KEY, AUTO_INCREMENT | Unique attachment ID | +| original_filename | VARCHAR(255) | NOT NULL | Original filename from upload | +| stored_filename | VARCHAR(255) | NOT NULL | System-generated unique filename | +| file_path | VARCHAR(500) | NOT NULL | Full file path on server (/share/dms-data/) | +| mime_type | VARCHAR(100) | NOT NULL | MIME type (application/pdf, image/jpeg, etc.) | +| file_size | INT | NOT NULL | File size in bytes | +| uploaded_by_user_id | INT | NOT NULL, FK | User who uploaded file | +| created_at | TIMESTAMP | DEFAULT CURRENT_TIMESTAMP | Upload timestamp | +| is_temporary | BOOLEAN | DEFAULT TRUE | ระบุว่าเป็นไฟล์ชั่วคราว (ยังไม่ได้ Commit) | +| temp_id\* | VARCHAR(100) | NULL | ID ชั่วคราวสำหรับอ้างอิงตอน Upload Phase 1 (อาจใช้ร่วมกับ id หรือแยกก็ได้) | +| expires_at | DATETIME | NULL | เวลาหมดอายุของไฟล์ Temp (เพื่อให้ Cron Job ลบออก) | +| checksum | VARCHAR(64) | NULL | SHA-256 Checksum สำหรับ Verify File Integrity [Req 3.9.3] | + +**Indexes**: + +* PRIMARY KEY (id) +* FOREIGN KEY (uploaded_by_user_id) REFERENCES users(user_id) ON DELETE CASCADE +* INDEX (stored_filename) +* INDEX (mime_type) +* INDEX (uploaded_by_user_id) +* INDEX (created_at) + +**Relationships**: + +* Parent: users +* Referenced by: correspondence_attachments, circulation_attachments, shop_drawing_revision_attachments, contract_drawing_attachments + +**Business Rules**: + +* Central storage prevents file duplication +* Stored filename prevents naming conflicts +* File path points to QNAP NAS storage +* Original filename preserved for download +* One file record can be linked to multiple documents + +--- + +### 8.2 correspondence_attachments + +**Purpose**: Junction table linking correspondences to file attachments (M:N) + +| Column Name | Data Type | Constraints | Description | +| ----------------- | --------- | --------------- | ---------------------------- | +| correspondence_id | INT | PRIMARY KEY, FK | Reference to correspondences | +| attachment_id | INT | PRIMARY KEY, FK | Reference to attachments | +| is_main_document | BOOLEAN | DEFAULT FALSE | Main/primary document flag | + +**Indexes**: + +* PRIMARY KEY (correspondence_id, attachment_id) +* FOREIGN KEY (correspondence_id) REFERENCES correspondences(id) ON DELETE CASCADE +* FOREIGN KEY (attachment_id) REFERENCES attachments(id) ON DELETE CASCADE +* INDEX (attachment_id) +* INDEX (is_main_document) + +**Relationships**: + +* Parent: correspondences, attachments + +**Business Rules**: + +* One correspondence can have multiple attachments +* One attachment can be linked to multiple correspondences +* is_main_document identifies primary file (typically PDF) + +--- + +### 8.3 circulation_attachments + +**Purpose**: Junction table linking circulations to file attachments (M:N) + +| Column Name | Data Type | Constraints | Description | +| ---------------- | --------- | --------------- | -------------------------- | +| circulation_id | INT | PRIMARY KEY, FK | Reference to circulations | +| attachment_id | INT | PRIMARY KEY, FK | Reference to attachments | +| is_main_document | BOOLEAN | DEFAULT FALSE | Main/primary document flag | + +**Indexes**: + +* PRIMARY KEY (circulation_id, attachment_id) +* FOREIGN KEY (circulation_id) REFERENCES circulations(id) ON DELETE CASCADE +* FOREIGN KEY (attachment_id) REFERENCES attachments(id) ON DELETE CASCADE +* INDEX (attachment_id) +* INDEX (is_main_document) + +**Relationships**: + +* Parent: circulations, attachments + +--- + +### 8.4 shop_drawing_revision_attachments + +**Purpose**: Junction table linking shop drawing revisions to file attachments (M:N) + +| Column Name | Data Type | Constraints | Description | +| ------------------------ | --------- | --------------- | ---------------------------------- | +| shop_drawing_revision_id | INT | PRIMARY KEY, FK | Reference to shop drawing revision | +| attachment_id | INT | PRIMARY KEY, FK | Reference to attachments | +| file_type | ENUM | NULL | File type: PDF, DWG, SOURCE, OTHER | +| is_main_document | BOOLEAN | DEFAULT FALSE | Main/primary document flag | + +**Indexes**: + +* PRIMARY KEY (shop_drawing_revision_id, attachment_id) +* FOREIGN KEY (shop_drawing_revision_id) REFERENCES shop_drawing_revisions(id) ON DELETE CASCADE +* FOREIGN KEY (attachment_id) REFERENCES attachments(id) ON DELETE CASCADE +* INDEX (attachment_id) +* INDEX (file_type) +* INDEX (is_main_document) + +**Relationships**: + +* Parent: shop_drawing_revisions, attachments + +**Business Rules**: + +* file_type categorizes drawing file formats +* Typically includes PDF for viewing and DWG for editing +* SOURCE may include native CAD files + +--- + +### 8.5 contract_drawing_attachments + +**Purpose**: Junction table linking contract drawings to file attachments (M:N) + +| Column Name | Data Type | Constraints | Description | +| ------------------- | --------- | --------------- | ---------------------------------- | +| contract_drawing_id | INT | PRIMARY KEY, FK | Reference to contract drawing | +| attachment_id | INT | PRIMARY KEY, FK | Reference to attachments | +| file_type | ENUM | NULL | File type: PDF, DWG, SOURCE, OTHER | +| is_main_document | BOOLEAN | DEFAULT FALSE | Main/primary document flag | + +**Indexes**: + +* PRIMARY KEY (contract_drawing_id, attachment_id) +* FOREIGN KEY (contract_drawing_id) REFERENCES contract_drawings(id) ON DELETE CASCADE +* FOREIGN KEY (attachment_id) REFERENCES attachments(id) ON DELETE CASCADE +* INDEX (attachment_id) +* INDEX (file_type) +* INDEX (is_main_document) + +**Relationships**: + +* Parent: contract_drawings, attachments + +--- + +## **9. 🔢 Document Numbering System Tables (ระบบเลขที่เอกสาร)** + +### 9.1 document_number_formats + +**Purpose**: Master table defining numbering formats for each document type + +| Column Name | Data Type | Constraints | Description | +| ---------------------- | ------------ | --------------------------- | -------------------------------------------- | +| id | INT | PRIMARY KEY, AUTO_INCREMENT | Unique format ID | +| project_id | INT | NOT NULL, FK | Reference to projects | +| correspondence_type_id | INT | NOT NULL, FK | Reference to correspondence_types | +| format_string | VARCHAR(100) | NOT NULL | Format pattern (e.g., {ORG}-{TYPE}-{YYYY}-#) | +| description | TEXT | NULL | Format description | +| reset_annually | BOOLEAN | DEFAULT TRUE | Start sequence new every year | +| is_active | TINYINT(1) | DEFAULT 1 | Active status | + +**Indexes**: + +* PRIMARY KEY (id) +* FOREIGN KEY (project_id) REFERENCES projects(id) ON DELETE CASCADE +* FOREIGN KEY (correspondence_type_id) REFERENCES correspondence_types(id) ON DELETE CASCADE +* UNIQUE KEY (project_id, correspondence_type_id) +* INDEX (is_active) + +**Relationships**: + +* Parent: projects, correspondence_types + +**Business Rules**: + +* Defines how document numbers are constructed +* Supports placeholders: {PROJ}, {ORG}, {TYPE}, {YYYY}, {MM}, {#} + +--- + +### 9.2 document_number_counters (UPDATE v1.7.0) + +**Purpose**: Transaction table tracking running numbers (High Concurrency) + +| Column Name | Data Type | Constraints | Description | +| -------------------------- | ----------- | ------------- | ----------------------------------------------- | +| project_id | INT | PK, NOT NULL | โครงการ | +| originator_organization_id | INT | PK, NOT NULL | องค์กรผู้ส่ง | +| recipient_organization_id | INT | PK, NOT NULL | องค์กรผู้รับ (0 = no recipient / RFA) | +| correspondence_type_id | INT | PK, NULL | ประเภทเอกสาร (NULL = default) | +| sub_type_id | INT | PK, DEFAULT 0 | ประเภทย่อย สำหรับ TRANSMITTAL (0 = ไม่ระบุ) | +| rfa_type_id | INT | PK, DEFAULT 0 | ประเภท RFA (0 = ไม่ใช่ RFA) | +| discipline_id | INT | PK, DEFAULT 0 | สาขางาน (0 = ไม่ระบุ) | +| reset_scope | VARCHAR(20) | PK, NOT NULL | Scope of reset (YEAR_2024, MONTH_2024_01, NONE) | +| last_number | INT | DEFAULT 0 | เลขล่าสุดที่ถูกใช้งานไปแล้ว | +| version | INT | DEFAULT 0 | Optimistic Lock Version | +| updated_at | DATETIME(6) | ON UPDATE | เวลาที่อัปเดตล่าสุด | + +**Indexes**: + +* **PRIMARY KEY (project_id, originator_organization_id, recipient_organization_id, correspondence_type_id, sub_type_id, rfa_type_id, discipline_id, reset_scope)** +* INDEX idx_counter_lookup (project_id, correspondence_type_id, reset_scope) +* INDEX idx_counter_org (originator_organization_id, reset_scope) + +**Business Rules**: + +* **Composite Primary Key 8 Columns**: เพื่อรองรับการรันเลขที่ซับซ้อนและ Reset Scope ที่หลากหลาย +* **Concurrency Control**: ใช้ Redis Lock หรือ Optimistic Locking (version) +* **Reset Scope**: ใช้ Field `reset_scope` ควบคุมการ Reset แทน `current_year` แบบเดิม + +--- + +### 9.3 document_number_audit (UPDATE v1.7.0) + +**Purpose**: Audit log for document number generation (Debugging & Tracking) + +| Column Name | Data Type | Constraints | Description | +| :------------------------- | :----------- | :----------------- | :-------------------------------------- | +| id | INT | PK, AI | ID ของ audit record | +| document_id | INT | NULL, FK | ID ของเอกสารที่สร้างเลขที่ (NULL if failed) | +| document_type | VARCHAR(50) | NULL | ประเภทเอกสาร | +| document_number | VARCHAR(100) | NOT NULL | เลขที่เอกสารที่สร้าง (ผลลัพธ์) | +| operation | ENUM | DEFAULT 'CONFIRM' | RESERVE, CONFIRM, MANUAL_OVERRIDE, etc. | +| status | ENUM | DEFAULT 'RESERVED' | RESERVED, CONFIRMED, CANCELLED, VOID | +| counter_key | JSON | NOT NULL | Counter key ที่ใช้ (JSON 8 fields) | +| reservation_token | VARCHAR(36) | NULL | Token การจอง | +| idempotency_key | VARCHAR(128) | NULL | Idempotency Key from request | +| originator_organization_id | INT | NULL | องค์กรผู้ส่ง | +| recipient_organization_id | INT | NULL | องค์กรผู้รับ | +| template_used | VARCHAR(200) | NOT NULL | Template ที่ใช้ในการสร้าง | +| old_value | TEXT | NULL | Previous value | +| new_value | TEXT | NULL | New value | +| user_id | INT | NULL, FK | ผู้ขอสร้างเลขที่ | +| is_success | BOOLEAN | DEFAULT TRUE | สถานะความสำเร็จ | +| created_at | TIMESTAMP | DEFAULT NOW | วันที่/เวลาที่สร้าง | +| total_duration_ms | INT | NULL | เวลารวมทั้งหมดในการสร้าง (ms) | + +**Indexes**: + +* PRIMARY KEY (id) +* FOREIGN KEY (document_id) REFERENCES correspondences(id) ON DELETE CASCADE +* FOREIGN KEY (user_id) REFERENCES users(user_id) +* INDEX (document_id) +* INDEX (user_id) +* INDEX (status) +* INDEX (operation) +* INDEX (document_number) +* INDEX (reservation_token) +* INDEX (created_at) + +--- + +### 9.4 document_number_errors (UPDATE v1.7.0) + +**Purpose**: Error log for failed document number generation + +| Column Name | Data Type | Constraints | Description | +| :------------ | :-------- | :---------- | :--------------------------------------------- | +| id | INT | PK, AI | ID ของ error record | +| error_type | ENUM | NOT NULL | LOCK_TIMEOUT, VERSION_CONFLICT, DB_ERROR, etc. | +| error_message | TEXT | NULL | ข้อความ error | +| stack_trace | TEXT | NULL | Stack trace สำหรับ debugging | +| context_data | JSON | NULL | Context ของ request | +| user_id | INT | NULL | ผู้ที่เกิด error | +| created_at | TIMESTAMP | DEFAULT NOW | วันที่เกิด error | +| resolved_at | TIMESTAMP | NULL | วันที่แก้ไขแล้ว | + +**Indexes**: + +* PRIMARY KEY (id) +* INDEX (error_type) +* INDEX (created_at) +* INDEX (user_id) +* INDEX (resolved_at) + +--- + +### 9.5 document_number_reservations (NEW v1.7.0) + +**Purpose**: Two-Phase Commit table for document number reservation + +| Column Name | Data Type | Constraints | Description | +| :--------------------- | :----------- | :--------------- | :----------------------------------- | +| id | INT | PK, AI | Unique ID | +| token | VARCHAR(36) | UNIQUE, NOT NULL | UUID v4 Reservation Token | +| document_number | VARCHAR(100) | UNIQUE, NOT NULL | เลขที่เอกสารที่จอง | +| document_number_status | ENUM | DEFAULT RESERVED | RESERVED, CONFIRMED, CANCELLED, VOID | +| document_id | INT | NULL, FK | ID ของเอกสาร (เมื่อ Confirm แล้ว) | +| expires_at | DATETIME(6) | NOT NULL | เวลาหมดอายุการจอง | +| project_id | INT | NOT NULL, FK | Project Context | +| user_id | INT | NOT NULL, FK | User Context | + +**Indexes**: + +* PRIMARY KEY (id) +* FOREIGN KEY (document_id) REFERENCES correspondence_revisions(id) ON DELETE SET NULL +* FOREIGN KEY (project_id) REFERENCES projects(id) ON DELETE CASCADE +* FOREIGN KEY (correspondence_type_id) REFERENCES correspondence_types(id) ON DELETE CASCADE +* FOREIGN KEY (user_id) REFERENCES users(user_id) ON DELETE CASCADE +* INDEX idx_token (token) +* INDEX idx_status (document_number_status) +* INDEX idx_status_expires (document_number_status, expires_at) +* INDEX idx_document_id (document_id) +* INDEX idx_user_id (user_id) +* INDEX idx_reserved_at (reserved_at) + +--- + +## **10. ⚙️ Unified Workflow Engine Tables (UPDATE v1.7.0)** + +### 10.1 workflow_definitions + +**Purpose**: เก็บแม่แบบ (Template) ของ Workflow (Definition / DSL) + +| Column Name | Data Type | Constraints | Description | +| :------------ | :---------- | :----------- | :------------------------------------- | +| id | CHAR(36) | PK, UUID | Unique Workflow Definition ID | +| workflow_code | VARCHAR(50) | NOT NULL | รหัส Workflow (เช่น RFA_FLOW_V1) | +| version | INT | DEFAULT 1 | หมายเลข Version | +| description | TEXT | NULL | คำอธิบาย Workflow | +| dsl | JSON | NOT NULL | นิยาม Workflow ต้นฉบับ (YAML/JSON Format) | +| compiled | JSON | NOT NULL | โครงสร้าง Execution Tree ที่ Compile แล้ว | +| is_active | BOOLEAN | DEFAULT TRUE | สถานะการใช้งาน | +| created_at | TIMESTAMP | DEFAULT NOW | วันที่สร้าง | +| updated_at | TIMESTAMP | ON UPDATE | วันที่แก้ไขล่าสุด | + +**Indexes**: + +* PRIMARY KEY (id) +* UNIQUE KEY (workflow_code, version) +* INDEX (is_active) + +--- + +### 10.2 workflow_instances + +**Purpose**: เก็บสถานะของ Workflow ที่กำลังรันอยู่จริง (Runtime) + +| Column Name | Data Type | Constraints | Description | +| :------------ | :---------- | :--------------- | :--------------------------------------------- | +| id | CHAR(36) | PK, UUID | Unique Instance ID | +| definition_id | CHAR(36) | FK, NOT NULL | อ้างอิง Definition ที่ใช้ | +| entity_type | VARCHAR(50) | NOT NULL | ประเภทเอกสาร (rfa_revision, correspondence...) | +| entity_id | VARCHAR(50) | NOT NULL | ID ของเอกสาร | +| current_state | VARCHAR(50) | NOT NULL | สถานะปัจจุบัน | +| status | ENUM | DEFAULT 'ACTIVE' | ACTIVE, COMPLETED, CANCELLED, TERMINATED | +| context | JSON | NULL | ตัวแปร Context สำหรับตัดสินใจ | +| created_at | TIMESTAMP | DEFAULT NOW | เวลาที่สร้าง | +| updated_at | TIMESTAMP | ON UPDATE | เวลาที่อัปเดตล่าสุด | + +**Indexes**: + +* PRIMARY KEY (id) +* FOREIGN KEY (definition_id) REFERENCES workflow_definitions(id) ON DELETE CASCADE +* INDEX (entity_type, entity_id) +* INDEX (current_state) + +--- + +### 10.3 workflow_histories + +**Purpose**: เก็บประวัติการดำเนินการในแต่ละ Step (Audit Trail) + +| Column Name | Data Type | Constraints | Description | +| :---------------- | :---------- | :----------- | :-------------------- | +| id | CHAR(36) | PK, UUID | Unique ID | +| instance_id | CHAR(36) | FK, NOT NULL | อ้างอิง Instance | +| from_state | VARCHAR(50) | NOT NULL | สถานะต้นทาง | +| to_state | VARCHAR(50) | NOT NULL | สถานะปลายทาง | +| action | VARCHAR(50) | NOT NULL | Action ที่กระทำ | +| action_by_user_id | INT | FK, NULL | User ID ผู้กระทำ | +| comment | TEXT | NULL | ความเห็น | +| metadata | JSON | NULL | Snapshot ข้อมูล ณ ขณะนั้น | +| created_at | TIMESTAMP | DEFAULT NOW | เวลาที่กระทำ | + +**Indexes**: + +* PRIMARY KEY (id) +* FOREIGN KEY (instance_id) REFERENCES workflow_instances(id) ON DELETE CASCADE +* INDEX (instance_id) +* INDEX (action_by_user_id) + +--- + +## **11. 🖥️ System & Logs Tables (ระบบ, บันทึก)** + +> **Audit Logging Architecture:** +### 1. Audit Logging + +**Table: `audit_logs`** + +บันทึกการเปลี่ยนแปลงสำคัญ: + +- User actions (CREATE, UPDATE, DELETE) +- Entity type และ Entity ID +- Old/New values (JSON) +- IP Address, User Agent + +### 2. User Preferences + +**Table: `user_preferences`** + +เก็บการตั้งค่าส่วนตัว: + +- Language preference +- Notification settings +- UI preferences (JSON) + +### 3. JSON Schema Validation + +**Table: `json_schemas`** + +เก็บ Schema สำหรับ Validate JSON fields: + +- `correspondence_revisions.details` +- `user_preferences.preferences` + +--- + + +### 11.1 json_schemas (UPDATE v1.7.0) + +**Purpose**: เก็บ Schema สำหรับ Validate JSON Columns (Req 3.12) + +| Column Name | Data Type | Constraints | Description | +| :---------------- | :----------- | :----------- | :------------------------------- | +| id | INT | PK, AI | Unique ID | +| schema_code | VARCHAR(100) | NOT NULL | รหัส Schema (เช่น RFA_DWG) | +| version | INT | DEFAULT 1 | เวอร์ชันของ Schema | +| table_name | VARCHAR(100) | NOT NULL | ชื่อตารางเป้าหมาย | +| schema_definition | JSON | NOT NULL | JSON Schema Definition | +| ui_schema | JSON | NULL | โครงสร้าง UI Schema สำหรับ Frontend | +| virtual_columns | JSON | NULL | Config สำหรับสร้าง Virtual Columns | +| migration_script | JSON | NULL | Script สำหรับแปลงข้อมูล | +| is_active | BOOLEAN | DEFAULT TRUE | สถานะการใช้งาน | + + +--- + +### 11.2 audit_logs (UPDATE v1.7.0) + +**Purpose**: Centralized audit logging for all system actions (Req 6.1) + +| Column Name | Data Type | Constraints | Description | +| :----------- | :----------- | :------------------------ | :------------------------------------------- | +| audit_id | BIGINT | PK, AI | Unique log ID | +| request_id | VARCHAR(100) | NULL | Trace ID linking to app logs | +| user_id | INT | NULL, FK | User who performed action | +| action | VARCHAR(100) | NOT NULL | Action name (e.g. rfa.create) | +| severity | ENUM | DEFAULT 'INFO' | INFO, WARN, ERROR, CRITICAL | +| entity_type | VARCHAR(50) | NULL | Module/Table name (e.g. rfa, correspondence) | +| entity_id | VARCHAR(50) | NULL | ID of affected entity | +| details_json | JSON | NULL | Context data / Old & New values | +| ip_address | VARCHAR(45) | NULL | User IP address | +| user_agent | VARCHAR(255) | NULL | User browser/client info | +| created_at | DATETIME | DEFAULT CURRENT_TIMESTAMP | Log timestamp | + +**Indexes**: + +* PRIMARY KEY (audit_id, created_at) -- **Partition Key** +* INDEX idx_audit_user (user_id) +* INDEX idx_audit_action (action) +* INDEX idx_audit_entity (entity_type, entity_id) +* INDEX idx_audit_created (created_at) + +**Partitioning**: +* **PARTITION BY RANGE (YEAR(created_at))**: แบ่ง Partition รายปี เพื่อประสิทธิภาพในการเก็บข้อมูลระยะยาว + +--- + +### 11.3 notifications (UPDATE v1.7.0) + +**Purpose**: System notifications for users + +| Column Name | Data Type | Constraints | Description | +| :---------------- | :----------- | :-------------------------- | :------------------------ | +| id | INT | PRIMARY KEY, AUTO_INCREMENT | Unique notification ID | +| user_id | INT | NOT NULL, FK | Recipient user ID | +| title | VARCHAR(255) | NOT NULL | Notification title | +| message | TEXT | NOT NULL | Notification body | +| notification_type | ENUM | NOT NULL | Type: EMAIL, LINE, SYSTEM | +| is_read | BOOLEAN | DEFAULT FALSE | Read status | +| entity_type | VARCHAR(50) | NULL | Related Entity Type | +| entity_id | INT | NULL | Related Entity ID | +| created_at | DATETIME | DEFAULT CURRENT_TIMESTAMP | Notification timestamp | + +**Indexes**: + +* PRIMARY KEY (id, created_at) -- **Partition Key** +* INDEX idx_notif_user (user_id) +* INDEX idx_notif_type (notification_type) +* INDEX idx_notif_read (is_read) +* INDEX idx_notif_created (created_at) + +**Partitioning**: +* **PARTITION BY RANGE (YEAR(created_at))**: แบ่ง Partition รายปี + +--- + +## **12. 🔍 Views (มุมมองข้อมูล)** + +### 12.1 v_current_correspondences + +**Purpose**: แสดงข้อมูล Correspondence Revision ล่าสุด (is_current = TRUE) + +### 12.2 v_current_rfas + +**Purpose**: แสดงข้อมูล RFA Revision ล่าสุด พร้อม Status และ Approve Code + +### 12.3 v_user_tasks (Unified Workflow) + +**Purpose**: รวมรายการงานที่ยังค้างอยู่ (Status = ACTIVE) จากทุกระบบ (RFA, Circulation, Correspondence) เพื่อนำไปแสดงใน Dashboard + +### 12.4 v_audit_log_details + +**Purpose**: แสดง audit_logs พร้อมข้อมูล username และ email ของผู้กระทำ + +### 12.5 v_user_all_permissions + +**Purpose**: รวมสิทธิ์ทั้งหมด (Global + Project + Organization) ของผู้ใช้ทุกคน + +### 12.6 v_documents_with_attachments + +**Purpose**: แสดงเอกสารทั้งหมดที่มีไฟล์แนบ (Correspondence, Circulation, Drawings) + +### 12.7 v_document_statistics + +**Purpose**: แสดงสถิติเอกสารตามประเภทและสถานะ + +--- + +## **13. 📊 Index Summaries (สรุป Index)** + +> **Performance Optimization Strategy:** +### 1. Indexing Strategy + +**Primary Indexes:** + +- Primary Keys (AUTO_INCREMENT) +- Foreign Keys (automatic in InnoDB) +- Unique Constraints (business keys) + +**Secondary Indexes:** + +```sql +-- Correspondence search +CREATE INDEX idx_corr_type_status ON correspondence_revisions(correspondence_type_id, correspondence_status_id); +CREATE INDEX idx_corr_date ON correspondence_revisions(document_date); + +-- Virtual columns for JSON +CREATE INDEX idx_v_ref_project ON correspondence_revisions(v_ref_project_id); +CREATE INDEX idx_v_doc_subtype ON correspondence_revisions(v_doc_subtype); + +-- User lookup +CREATE INDEX idx_user_email ON users(email); +CREATE INDEX idx_user_org ON users(primary_organization_id, is_active); +``` + +### 2. Virtual Columns + +ใช้ Virtual Columns สำหรับ Index JSON fields: + +```sql +ALTER TABLE correspondence_revisions +ADD COLUMN v_ref_project_id INT GENERATED ALWAYS AS (JSON_UNQUOTE(JSON_EXTRACT(details, '$.ref_project_id'))) VIRTUAL, +ADD INDEX idx_v_ref_project(v_ref_project_id); +``` + +### 3. Partitioning (Future) + +พิจารณา Partition ตาราง `audit_logs` ตามปี: + +```sql +ALTER TABLE audit_logs +PARTITION BY RANGE (YEAR(created_at)) ( + PARTITION p2024 VALUES LESS THAN (2025), + PARTITION p2025 VALUES LESS THAN (2026), + PARTITION p_future VALUES LESS THAN MAXVALUE +); +``` + +--- + + +### 13.1 Performance Indexes + +| Table Name | Index Columns | Purpose | +| :----------------------- | :------------------------------------------------ | :----------------------------- | +| correspondences | (project_id, correspondence_number) | Fast lookup by document number | +| correspondences | (correspondence_type_id) | Filter by type | +| correspondence_revisions | (correspondence_id, is_current) | Get current revision | +| rfas | (rfa_type_id) | Filter by RFA type | +| rfa_revisions | (rfa_id, is_current) | Get current RFA revision | +| rfa_revisions | (rfa_status_code_id) | Filter by status | +| audit_logs | (created_at) | Date range queries | +| audit_logs | (user_id) | User activity history | +| audit_logs | (module, action) | Action type analysis | +| notifications | (user_id, is_read) | Unread notifications query | +| document_number_counters | (project_id, correspondence_type_id, reset_scope) | Running number generation | +| workflow_instances | (entity_type, entity_id) | Workflow lookup by document ID | +| workflow_instances | (current_state) | Monitor active workflows | + +### 13.2 Unique Constraints + +| Table Name | Columns | Description | +| :---------------------- | :----------------------------------- | :--------------------------------- | +| users | (username) | Unique login name | +| users | (email) | Unique email address | +| organizations | (organization_code) | Unique organization code | +| projects | (project_code) | Unique project code | +| contracts | (contract_code) | Unique contract code | +| correspondences | (project_id, correspondence_number) | Unique document number per project | +| shop_drawings | (drawing_number) | Unique shop drawing number | +| document_number_formats | (project_id, correspondence_type_id) | One format per type per project | +| workflow_definitions | (workflow_code, version) | Unique workflow code per version | + +--- + +## **14. 🛡️ Data Integrity Constraints (ความถูกต้องของข้อมูล)** + +### 14.1 Soft Delete Policy + +* **Tables with `deleted_at`**: + * users + * organizations + * projects + * contracts + * correspondences + * rfas + * shop_drawings + * contract_drawings +* **Rule**: Records are never physically deleted. `deleted_at` is set to timestamp. +* **Query Rule**: All standard queries MUST include `WHERE deleted_at IS NULL`. + +### 14.2 Foreign Key Cascades + +* **ON DELETE CASCADE**: + * Used for child tables that cannot exist without parent (e.g., `correspondence_revisions`, `rfa_revisions`, `correspondence_attachments`). +* **ON DELETE RESTRICT**: + * Used for master data references to prevent accidental deletion of used data (e.g., `correspondence_types`, `organizations`). +* **ON DELETE SET NULL**: + * Used for optional references (e.g., `created_by`, `originator_id`). + +--- + +## **15. 🔐 Security & Permissions Model (ความปลอดภัย)** + +### 15.1 Row-Level Security (RLS) Logic + +* **Organization Scope**: Users can only see documents where `originator_id` OR `recipient_organization_id` matches their organization. +* **Project Scope**: Users can only see documents within projects they are assigned to. +* **Confidentiality**: Documents marked `is_confidential` are visible ONLY to specific roles or users. + +### 15.2 Role-Based Access Control (RBAC) + +* **Permissions** are granular (e.g., `correspondence.view`, `correspondence.create`). +* **Roles** aggregate permissions (e.g., `Document Controller` = `view` + `create` + `edit`). +* **Assignments** link Users to Roles within a Context (Global, Project, or Organization). + +--- + +## **16. 🔄 Data Migration & Seeding (การย้ายข้อมูล)** + +### 16.1 Initial Seeding (V1.7.0) + +1. **Master Data**: + * `organizations`: Owner, Consultant, Contractor + * `projects`: LCBP3 + * `correspondence_types`: LETTER, MEMO, TRANSMITTAL, RFA + * `rfa_types`: DWG, MAT, DOC, RFI + * `rfa_status_codes`: DFT, PEND, APPR, REJ + * `disciplines`: GEN, STR, ARC, MEP +2. **System Users**: + * `admin`: Super Admin + * `system`: System Bot for automated tasks + +### 16.2 Migration Strategy + +* **Schema Migration**: Use TypeORM Migrations or raw SQL scripts (versioned). +* **Data Migration**: + * **V1.6.0 -> V1.7.0**: + * Run SQL script `9_lcbp3_v1_7_0.sql` + * Migrate `document_number_counters` to 8-col composite PK. + * Initialize `document_number_reservations`. + * Update `json_schemas` with new columns. + +--- + +## **17. 📈 Monitoring & Maintenance (การดูแลรักษา)** + +### 17.1 Database Maintenance + +* **Daily**: Incremental Backup. +* **Weekly**: Full Backup + `OPTIMIZE TABLE` for heavy tables (`audit_logs`, `notifications`). +* **Monthly**: Archive old `audit_logs` partitions to cold storage. + +### 17.2 Health Checks + +* Monitor `document_number_errors` for numbering failures. +* Monitor `workflow_instances` for stuck workflows (`status = ' IN_PROGRESS '` > 7 days). +* Check `document_number_counters` for gaps or resets. + +--- + +## **18. 📚 Best Practices** +### 1. Naming Conventions + +- **Tables**: `snake_case`, plural (e.g., `correspondences`, `users`) +- **Columns**: `snake_case` (e.g., `correspondence_number`, `created_at`) +- **Foreign Keys**: `{referenced_table_singular}_id` (e.g., `project_id`, `user_id`) +- **Junction Tables**: `{table1}_{table2}` (e.g., `correspondence_tags`) + +### 2. Timestamp Columns + +ทุกตารางควรมี: + +- `created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP` +- `updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP` + +### 3. Soft Delete + +ใช้ `deleted_at DATETIME NULL` แทนการลบจริง: + +```sql +-- Soft delete +UPDATE correspondences SET deleted_at = NOW() WHERE id = 1; + +-- Query active records +SELECT * FROM correspondences WHERE deleted_at IS NULL; +``` + +### 4. JSON Field Guidelines + +- ใช้สำหรับข้อมูลที่ไม่ต้อง Query บ่อย +- สร้าง Virtual Columns สำหรับ fields ที่ต้อง Index +- Validate ด้วย JSON Schema +- Document structure ใน Data Dictionary + +--- + +--- + +## **19. 📖 Glossary (คำศัพท์)** + +* **RFA**: Request for Approval (เอกสารขออนุมัติ) +* **Transmittal**: Document Transmittal Sheet (ใบนำส่งเอกสาร) +* **Shop Drawing**: แบบก่อสร้างที่ผู้รับเหมาจัดทำ +* **Contract Drawing**: แบบสัญญา (แบบตั้งต้น) +* **Revision**: ฉบับแก้ไข (0, 1, 2, A, B, C) +* **Originator**: ผู้จัดทำ/ผู้ส่งเอกสาร +* **Recipient**: ผู้รับเอกสาร +* **Workflow**: กระบวนการทำงาน/อนุมัติ +* **Discipline**: สาขางาน (เช่น โยธา, สถาปัตย์, ไฟฟ้า) + +--- + +**End of Data Dictionary V1.8.0** + diff --git a/specs/03-Data-and-Storage/03-02-db-indexing.md b/specs/03-Data-and-Storage/03-02-db-indexing.md new file mode 100644 index 0000000..bc4d4ff --- /dev/null +++ b/specs/03-Data-and-Storage/03-02-db-indexing.md @@ -0,0 +1,131 @@ +# Database Indexing & Performance Strategy +**Version:** 1.0.0 +**Context:** Production-scale (100k+ documents, High Concurrency) +**Database:** MySQL 8.x (On-Premise via Docker) + +## 1. Core Principles (หลักการสำคัญ) +ในการออกแบบ Database Index สำหรับระบบ DMS ให้ยึดหลักการตัดสินใจดังนี้: +1. **Data Integrity First:** ใช้ `UNIQUE INDEX` เพื่อเป็นปราการด่านสุดท้ายป้องกันการเกิด Duplicate Document Number และ Revision ซ้ำซ้อน (แม้ Application Layer จะมี Logic ดักไว้แล้วก็ตาม) +2. **Soft-Delete Awareness:** ทุก Index ที่เกี่ยวข้องกับความถูกต้องของข้อมูล ต้องคำนึงถึงคอลัมน์ `deleted_at` เพื่อไม่ให้เอกสารที่ถูกลบไปแล้ว มาขัดขวางการสร้างเอกสารใหม่ที่ใช้เลขเดิม +3. **Foreign Key Performance:** สร้าง B-Tree Index ให้กับ Foreign Key (FK) ทุกตัว เพื่อรองรับการ JOIN ข้อมูลที่รวดเร็ว โดยเฉพาะการดึง Workflow และ Routing +4. **Write-Heavy Resilience:** ตารางประเภท `audit_logs` ให้เน้น Index เฉพาะที่จำเป็น (`created_at`, `user_id`, `action`) เพื่อไม่ให้กระทบประสิทธิภาพการ Insert + +--- + +## 2. Document Control Indexes (ป้องกัน Duplicate & Conflict) +หัวใจของ DMS คือห้ามมีเอกสารเลขซ้ำในระบบที่ Active อยู่ + +### 2.1 Unique Document Number & Revision +เพื่อรองรับระบบ Soft Delete (`deleted_at`) ใน MySQL การตั้ง Unique Index จำเป็นต้องมีเทคนิคเพื่อจัดการกับค่า `NULL` (เนื่องจาก MySQL มองว่า `NULL` ไม่เท่ากับ `NULL` จึงอาจทำให้เกิด Duplicate ได้ถ้าตั้งค่าไม่รัดกุม) + +**SQL Recommendation (Functional Index - MySQL 8.0+):** +```sql +-- ป้องกันการสร้าง Document No และ Revision ซ้ำ สำหรับเอกสารที่ยังไม่ถูกลบ (Active) +ALTER TABLE `documents` +ADD UNIQUE INDEX `idx_unique_active_doc_rev` ( + `document_no`, + `revision`, + (IF(`deleted_at` IS NULL, 1, NULL)) +); + +``` + +*เหตุผล:* โครงสร้างนี้รับประกันว่าจะมี `document_no` + `revision` ที่ Active ได้เพียง 1 รายการเท่านั้น แต่สามารถมีรายการที่ถูกลบ (`deleted_at` มีค่า) ซ้ำกันได้ + +### 2.2 Current/Superseded Flag Index + +การค้นหาว่าเอกสารไหนเป็น "Latest Revision" จะเกิดขึ้นบ่อยมาก + +```sql +-- ใช้สำหรับ Filter เอกสารที่เป็นเวอร์ชันล่าสุดอย่างรวดเร็ว +ALTER TABLE `documents` +ADD INDEX `idx_doc_status_is_current` (`is_current`, `status`, `project_id`); + +``` + +--- + +## 3. High-Concurrency Search Indexes (รองรับ 100k+ Docs) + +สำหรับการทำ Filter และ Search บนหน้า Dashboard หรือรายการเอกสาร + +### 3.1 Pagination & Sorting + +การ Query ข้อมูลแบบแบ่งหน้า (Pagination) พร้อมเรียงลำดับวันที่ มักเกิดปัญหา "Filesort" ที่ทำให้ CPU โหลดหนัก + +```sql +-- สำหรับหน้า Dashboard ที่เรียงตามวันที่อัปเดตล่าสุด +ALTER TABLE `documents` +ADD INDEX `idx_project_updated` (`project_id`, `updated_at` DESC); + +-- สำหรับ Inbox / Pending Tasks ของ User +ALTER TABLE `workflow_instances` +ADD INDEX `idx_assignee_status` (`assignee_id`, `status`, `created_at` DESC); + +``` + +### 3.2 Full-Text Search (ทางเลือกเบื้องต้นก่อนใช้ Elasticsearch) + +หากผู้ใช้ต้องการค้นหาจากชื่อเอกสาร (`title`) หรือเนื้อหาบางส่วน + +```sql +-- สร้าง Full-Text Index สำหรับคำค้นหา +ALTER TABLE `documents` +ADD FULLTEXT INDEX `ft_idx_doc_title` (`title`, `subject`); + +``` + +*(หมายเหตุ: หากอนาคตมีระบบ OCR หรือค้นหาในเนื้อหาไฟล์ PDF ให้พิจารณาขยับไปใช้ Elasticsearch แยกต่างหาก ไม่ควรเก็บ Full-Text ขนาดใหญ่ไว้ใน MySQL)* + +--- + +## 4. RBAC & Security Indexes + +เพื่อป้องกันปัญหาคอขวด (Bottleneck) ตอนเช็คสิทธิ์ (RBAC validation) ก่อนให้เข้าถึงเอกสาร + +```sql +-- ตาราง user_permissions +ALTER TABLE `user_permissions` +ADD UNIQUE INDEX `idx_user_role_project` (`user_id`, `role_id`, `project_id`); + +-- ตาราง document_access_logs (Audit) +ALTER TABLE `audit_logs` +ADD INDEX `idx_audit_user_action` (`user_id`, `action`, `created_at`); + +``` + +--- + +## 5. Audit Log Strategy (การจัดการตารางประวัติ) + +ตาราง `audit_logs` จะโตเร็วมาก (Insert-only) คาดว่าจะมีหลักล้าน Record อย่างรวดเร็ว + +**คำแนะนำสำหรับ On-Premise:** + +1. **Partitioning:** แนะนำให้ทำ Table Partitioning ตามเดือน (Monthly) หรือปี (Yearly) บนคอลัมน์ `created_at` +2. **Minimal Indexing:** ห้ามสร้าง Index เยอะเกินความจำเป็นในตารางนี้ แนะนำแค่: +* `INDEX(document_id, created_at)` สำหรับดู History ของเอกสารนั้นๆ +* `INDEX(user_id, created_at)` สำหรับตรวจสอบพฤติกรรมผู้ใช้ต้องสงสัย (Security Audit) + + + +```sql +-- ตัวอย่างการ Index สำหรับดูกระแสของเอกสาร +ALTER TABLE `audit_logs` +ADD INDEX `idx_entity_history` (`entity_type`, `entity_id`, `created_at` DESC); + +``` + +--- + +## 6. Maintenance & Optimization (DevOps/Admin) + +เนื่องจากระบบอยู่บน On-Prem NAS (QNAP/ASUSTOR) ทรัพยากร I/O ของดิสก์มีจำกัด (Disk IOPS) + +* **Index Defragmentation:** ให้กำหนด Scheduled Task (ผ่าน Cronjob หรือ MySQL Event) มารัน `OPTIMIZE TABLE` ทุกๆ ไตรมาส สำหรับตารางที่มีการ Delete/Update บ่อย (ช่วยคืนพื้นที่ดิสก์และลด I/O) +* **Slow Query Monitoring:** ใน `04-infrastructure-ops/04-01-docker-compose.md` ต้องเปิดใช้งาน `slow_query_log=1` และตั้ง `long_query_time=2` เพื่อตรวจสอบว่ามี Query ใดทำงานแบบ Full Table Scan (ไม่ใช้ Index) หรือไม่ + + +## 💡 คำแนะนำเพิ่มเติมจาก Architect (Architect's Notes): +1. **เรื่อง Soft Delete กับ Unique Constraint:** เป็นจุดที่นักพัฒนาพลาดกันบ่อยที่สุด ถ้าระบบอนุญาตให้ลบ `DOC-001 Rev.0` แล้วสร้าง `DOC-001 Rev.0` ใหม่ได้ การจัดการ Unique Constraint บน MySQL ต้องใช้ Functional Index (ตามตัวอย่างในข้อ 2.1) เพื่อป้องกันการตีกันของค่า `NULL` ในฐานข้อมูล +2. **ลดภาระ QNAP/ASUSTOR:** อุปกรณ์จำพวก NAS On-Premise มักจะมีปัญหาเรื่อง Random Read/Write Disk I/O การใช้ **Composite Index** แบบครบคลุม (Covering Index) จะช่วยให้ MySQL คืนค่าได้จาก Index Tree โดยตรง ไม่ต้องกระโดดไปอ่าน Data File จริง ซึ่งจะช่วยรีด Performance ของ NAS ได้สูงสุดครับ diff --git a/specs/03-Data-and-Storage/03-03-file-storage.md b/specs/03-Data-and-Storage/03-03-file-storage.md new file mode 100644 index 0000000..288ddc1 --- /dev/null +++ b/specs/03-Data-and-Storage/03-03-file-storage.md @@ -0,0 +1,315 @@ +# 3.3 File Storage and Handling + +--- +title: 'Data & Storage: File Storage and Handling (Two-Phase)' +version: 1.8.0 +status: drafted +owner: Nattanin Peancharoen +last_updated: 2026-02-22 +related: +- specs/01-requirements/01-03.10-file-handling.md (Merged) +- specs/03-Data-and-Storage/ADR-003-file-storage-approach.md (Merged) +- specs/02-architecture/02-01-system-architecture.md +- ADR-006-security-best-practices +--- + +## 1. Overview and Core Infrastructure Requirements + +เอกสารฉบับนี้รวบรวมข้อกำหนดการจัดการไฟล์และการจัดเก็บไฟล์ (File Storage Approach) สำหรับ LCBP3-DMS โดยมีข้อบังคับด้าน Infrastructure และ Security ที่สำคัญมากดังต่อไปนี้: + +### 1.1 Infrastructure Requirement (การจัดเก็บและ Mount Volume) +**สำคัญ (CRITICAL SPECIFICATION):** +1. **Outside Webroot:** ไฟล์รูปและเอกสารทั้งหมดต้องถูกจัดเก็บไว้ **ภายนอก Webroot ของ Application** ห้ามเก็บไฟล์รูปหรือเอกสารไว้ใน Container หรือโฟลเดอร์ Webroot เด็ดขาด เพื่อป้องกันการเข้าถึงไฟล์โดยตรงจากสาธารณะ (Direct Public Access) +2. **QNAP Volume Mount:** ต้องใช้ **QNAP Volume Mount เข้า Docker** (Mount external volume from QNAP NAS to Docker container) สำหรับเป็นพื้นที่เก็บไฟล์ Storage ให้ Container ดึงไปใช้งาน +3. **Authenticated Endpoint:** ไฟล์ต้องถูกเข้าถึงและให้บริการดาวน์โหลดผ่าน Authenticated Endpoint ในฝั่ง Backend เท่านั้น โดยต้องผ่านการตรวจสอบสิทธิ์ (RBAC / Junction Table) เสียก่อน + +### 1.2 Access & Security Rules +- **Virus Scan:** ต้องมีการ scan virus สำหรับไฟล์ที่อัปโหลดทั้งหมด โดยใช้ ClamAV หรือบริการ third-party ก่อนการบันทึก +- **Whitelist File Types:** อนุญาตเฉพาะเอกสารตามที่กำหนด: PDF, DWG, DOCX, XLSX, ZIP +- **Max File Size:** ขนาดไฟล์สูงสุดไม่เกิน 50MB ต่อไฟล์ (Total max 500MB per form submission) +- **Expiration Time:** Download links ที่สร้างขึ้นต้องมี expiration time (default: 24 ชั่วโมง) +- **Integrity Check:** ต้องมี file integrity check (checksum เป็น SHA-256) เพื่อป้องกันการแก้ไขไฟล์ภายหลัง +- **Audit Logging:** ต้องบันทึก audit log ทุกครั้งที่มีการดาวน์โหลดไฟล์สำคัญ + +--- + +## 2. Two-Phase File Storage Approach (ADR-003) + +### 2.1 Context and Problem Statement +LCBP3-DMS ต้องจัดการ File Uploads สำหรับ Attachments ของเอกสาร (PDF, DWG, DOCX, etc.) โดยต้องรับมือกับปัญหา: +1. **Orphan Files:** User อัปโหลดไฟล์แล้วไม่ Submit Form ทำให้ไฟล์ค้างใน Storage +2. **Transaction Integrity:** ถ้า Database Transaction Rollback ไฟล์ยังอยู่ใน Storage ต้องสอดคล้องกับ Database Record +3. **Virus Scanning:** ต้อง Scan ไฟล์ก่อน Save เข้าระบบถาวร +4. **File Validation:** ตรวจสอบ Type, Size, และสร้าง Checksum +5. **Storage Organization:** จัดเก็บไฟล์แยกเป็นสัดส่วน (เพื่อไม่ให้ QNAP Storage กระจัดกระจายและจำกัดขนาดได้) + +### 2.2 Decision Drivers +- **Data Integrity:** File และ Database Record ต้อง Consistent +- **Security:** ป้องกัน Virus และ Malicious Files +- **User Experience:** Upload ต้องรวดเร็ว ไม่ Block UI (ถ้าอัปโหลดพร้อม Submit อาจทำให้ระบบดูค้าง) +- **Storage Efficiency:** ไม่เก็บไฟล์ที่ไม่ถูกใช้งาน (Orphan files) +- **Auditability:** ติดตามประวัติ File Operations ได้ + +### 2.3 Considered Options & Decision +- **Option 1:** Direct Upload to Permanent Storage (ทิ้งไฟล์ถ้า Transaction Fail / ได้ Orphan Files) - ❌ +- **Option 2:** Upload after Form Submission (UX แย่ ผู้ใช้ต้องรออัปโหลดรวดเดียวท้ายสุด) - ❌ +- **Option 3: Two-Phase Storage (Temp → Permanent) ⭐ (Selected Option)** - ✅ + +**แนวทาง Two-Phase Storage (Temp → Permanent):** +1. **Phase 1 (Upload):** ไฟล์ถูกอัปโหลดเข้าโฟลเดอร์ `temp/` ได้รับ `temp_id` +2. **Phase 2 (Commit):** เมื่อ User กด Submit ฟอร์มสำเร็จ ระบบจะย้ายไฟล์จาก `temp/` ไปยัง `permanent/{YYYY}/{MM}/` และบันทึกลง Database ใน Transaction เดียวกัน +3. **Cleanup:** มี Cron Job ทำหน้าที่ลบไฟล์ใน `temp/` ที่ค้างเกินกำหนด (เช่น 24 ชั่วโมง) + +--- + +## 3. Implementation Details + +### 3.1 Database Schema +```sql +CREATE TABLE attachments ( + id INT PRIMARY KEY AUTO_INCREMENT, + original_filename VARCHAR(255) NOT NULL, + stored_filename VARCHAR(255) NOT NULL, -- UUID-based + file_path VARCHAR(500) NOT NULL, -- QNAP Mount path + mime_type VARCHAR(100) NOT NULL, + file_size INT NOT NULL, + checksum VARCHAR(64) NULL, -- SHA-256 + + -- Two-Phase Fields + is_temporary BOOLEAN DEFAULT TRUE, + temp_id VARCHAR(100) NULL, -- UUID for temp reference + expires_at DATETIME NULL, -- Temp file expiration + + uploaded_by_user_id INT NOT NULL, + created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP, + + FOREIGN KEY (uploaded_by_user_id) REFERENCES users(user_id), + INDEX idx_temp_files (is_temporary, expires_at) +); +``` + +### 3.2 Two-Phase Storage Flow +```mermaid +sequenceDiagram + participant User as Client + participant BE as Backend + participant Virus as ClamAV + participant TempStorage as Temp Storage (QNAP Volume) + participant PermStorage as Permanent Storage (QNAP Volume) + participant DB as Database + + Note over User,DB: Phase 1: Upload to Temporary Storage + User->>BE: POST /attachments/upload (file) + BE->>BE: Validate file type, size + BE->>Virus: Scan virus + + alt File is CLEAN + Virus-->>BE: CLEAN + BE->>BE: Generate temp_id (UUID) + BE->>BE: Calculate SHA-256 checksum + BE->>TempStorage: Save to temp/{temp_id} + BE->>DB: INSERT attachment
(is_temporary=TRUE, expires_at=NOW+24h) + BE-->>User: { temp_id, expires_at } + else File is INFECTED + Virus-->>BE: INFECTED + BE-->>User: Error: Virus detected + end + + Note over User,DB: Phase 2: Commit to Permanent Storage + User->>BE: POST /correspondences
{ temp_file_ids: [temp_id] } + BE->>DB: BEGIN Transaction + BE->>DB: INSERT correspondence + + loop For each temp_file_id + BE->>TempStorage: Read temp file + BE->>PermStorage: Move to permanent/{YYYY}/{MM}/{UUID} + BE->>DB: UPDATE attachment
(is_temporary=FALSE, file_path=new_path) + BE->>DB: INSERT correspondence_attachments + BE->>TempStorage: DELETE temp file + end + + BE->>DB: COMMIT Transaction + BE-->>User: Success + + Note over BE,TempStorage: Cleanup Job (Every 6 hours) + BE->>DB: SELECT expired temp files + BE->>TempStorage: DELETE expired physical files + BE->>DB: DELETE attachment records +``` + +### 3.3 NestJS Service Implementation + +```typescript +// file-storage.service.ts +import { Injectable, BadRequestException, Logger } from '@nestjs/common'; +import { ConfigService } from '@nestjs/config'; +import { Cron } from '@nestjs/schedule'; +import { createHash } from 'crypto'; +import * as fs from 'fs-extra'; +import * as path from 'path'; +import { v4 as uuidv4 } from 'uuid'; +import { LessThan } from 'typeorm'; + +@Injectable() +export class FileStorageService { + private readonly TEMP_DIR: string; + private readonly PERMANENT_DIR: string; + private readonly TEMP_EXPIRY_HOURS = 24; + private readonly logger = new Logger(FileStorageService.name); + + constructor(private config: ConfigService) { + // 💡 Must point to the QNAP Volume mount inside the container! + this.TEMP_DIR = this.config.get('STORAGE_PATH') + '/temp'; + this.PERMANENT_DIR = this.config.get('STORAGE_PATH') + '/permanent'; + } + + // Phase 1: Upload to Temporary + async uploadToTemp(file: Express.Multer.File): Promise { + // 1. Validate file (Size & Type) + this.validateFile(file); + + // 2. Virus scan (ClamAV) + await this.virusScan(file); + + // 3. Generate temp ID and File paths + const tempId = uuidv4(); + const storedFilename = `${tempId}_${file.originalname}`; + const tempPath = path.join(this.TEMP_DIR, storedFilename); + + // 4. Calculate checksum + const checksum = await this.calculateChecksum(file.buffer); + + // 5. Save to temp directory (Outside Webroot via volume mount) + await fs.writeFile(tempPath, file.buffer); + + // 6. Create attachment record in DB (Example assuming typeorm usage) + const attachment = await this.attachmentRepo.save({ + original_filename: file.originalname, + stored_filename: storedFilename, + file_path: tempPath, + mime_type: file.mimetype, + file_size: file.size, + checksum, + is_temporary: true, + temp_id: tempId, + expires_at: new Date(Date.now() + this.TEMP_EXPIRY_HOURS * 3600 * 1000), + uploaded_by_user_id: this.currentUserId, + }); + + return { + temp_id: tempId, + expires_at: attachment.expires_at, + filename: file.originalname, + size: file.size, + }; + } + + // Phase 2: Commit to Permanent (within Transaction Manager) + async commitFiles(tempIds: string[], entityId: number, entityType: string, manager: EntityManager): Promise { + const attachments = []; + + for (const tempId of tempIds) { + const tempAttachment = await manager.findOne(Attachment, { where: { temp_id: tempId, is_temporary: true } }); + if (!tempAttachment) throw new Error(`Temporary file not found: ${tempId}`); + if (tempAttachment.expires_at < new Date()) throw new Error(`Temporary file expired: ${tempId}`); + + // Generate permanent path: permanent/YYYY/MM + const now = new Date(); + const year = now.getFullYear(); + const month = (now.getMonth() + 1).toString().padStart(2, '0'); + const permanentDir = path.join(this.PERMANENT_DIR, year.toString(), month); + await fs.ensureDir(permanentDir); + + const permanentFilename = `${uuidv4()}_${tempAttachment.original_filename}`; + const permanentPath = path.join(permanentDir, permanentFilename); + + // Move file physically in QNAP Volume + await fs.move(tempAttachment.file_path, permanentPath); + + // Update Database record + await manager.update(Attachment, { id: tempAttachment.id }, { + file_path: permanentPath, + stored_filename: permanentFilename, + is_temporary: false, + temp_id: null, + expires_at: null, + }); + + attachments.push(tempAttachment); + } + return attachments; + } + + // Phase 3: Cleanup Job (Cron) + @Cron('0 */6 * * *') // Every 6 hours + async cleanupExpiredFiles(): Promise { + const expiredFiles = await this.attachmentRepo.find({ + where: { is_temporary: true, expires_at: LessThan(new Date()) }, + }); + + for (const file of expiredFiles) { + try { + await fs.remove(file.file_path); + await this.attachmentRepo.remove(file); + this.logger.log(`Cleaned up expired file: ${file.temp_id}`); + } catch (error) { + this.logger.error(`Failed to cleanup file: ${file.temp_id}`, error); + } + } + } + + private validateFile(file: Express.Multer.File): void { + const allowedTypes = [ + 'application/pdf', + 'application/vnd.openxmlformats-officedocument.wordprocessingml.document', + // ... (DOCX, WHiteListed Mimetypes + XLSX, DWG, ZIP) + ]; + const maxSize = 50 * 1024 * 1024; // 50MB + if (!allowedTypes.includes(file.mimetype)) throw new BadRequestException('Invalid file type'); + if (file.size > maxSize) throw new BadRequestException('File too large (max 50MB)'); + // 💡 Add Magic Number Verification logic in real implementation to avoid simple extension spoofing + } + + private async virusScan(file: Express.Multer.File): Promise { + // ClamAV integration example + // const scanner = await this.clamAV.scan(file.buffer); + // if (scanner.isInfected) throw new BadRequestException('Virus detected in file'); + } + + private async calculateChecksum(buffer: Buffer): Promise { + return createHash('sha256').update(buffer).digest('hex'); + } +} +``` + +### 3.4 API Controller Context +ในส่วนของตัว Controller ฝ่ายรับข้อมูลจะต้องแยกระหว่าง Uploading กับ Comit: +1. `POST /attachments/upload` ใช้เพื่อรับไฟล์และ Return `temp_id` แก่ User ทันที +2. `POST /correspondences` หรือ Object อื่นๆ ใช้เพื่อ Commit Database โดยจะรับ `temp_file_ids: []` พ่วงมากับ Body form + +--- + +## 4. Consequences & Mitigation Strategies + +### Positive Consequences +1. ✅ **Fast Upload UX:** User upload แบบ Async ก่อน Submit ดำเนินการลื่นไหล +2. ✅ **No Orphan Files:** เกิดระบบ Auto-cleanup จัดการไฟล์หมดอายุโดยอัตโนมัติ ไม่เปลืองสเปซ QNAP +3. ✅ **Transaction Safe:** Rollback ได้สมบูรณ์หากบันทึกฐานข้อมูลผิดพลาด ไฟล์จะถูก Cron จัดการให้ทีหลังไม่ตกค้างในระบบ +4. ✅ **Security:** Virus scan ไฟล์ก่อน Commit เข้าถึงข้อมูล Sensitive Area +5. ✅ **Audit Trail:** ติดตามประวัติ Operations ต่างๆ เพื่อความโปร่งใส +6. ✅ **Storage Organization:** จัดเก็บอย่างเป็นระเบียบ ด้วยรูปแบบ YYYY/MM ลดคอขวด IO Operations ในระบบ + +### Negative Consequences & Mitigations +1. ❌ **Complexity:** ต้อง Implement 2 phases ซึ่งซับซ้อนขึ้น + 👉 *Mitigation:* รวบ Logic ทุกอย่างให้เป็น Service ชั้นเดียว (`FileStorageService`) เพื่อให้จัดการง่ายและเรียกใช้ง่ายที่สุด +2. ❌ **Extra Storage:** ต้องใช้พื้นที่ QNAP ในส่วน Temp directory ควบคู่ไปกับแบบ Permanent + 👉 *Mitigation:* คอย Monitor และปรับรอบความถี่ของการ Cleanup หากไฟล์มีปริมาณไหลเวียนเยอะมาก +3. ❌ **Edge Cases:** อาจเกิดประเด็นเรื่อง File lock หรือ missing temp files + 👉 *Mitigation:* ทำ Proper error handling พร้อม Logging ให้ตรวจสอบได้ง่าย + +--- + +## 5. Performance Optimization Consideration +- **Streaming:** ใช้ multipart/form-data streaming เพิ่อลดภาระ Memory ของฝั่งเครื่องเซิฟเวอร์ (NestJS) ขณะสูบไฟล์ใหญ่ๆ +- **Compression:** พิจารณาเรื่องการบีบอัดสำหรับไฟล์ขนาดใหญ่หรือบางประเภท +- **Deduplication Check:** สามารถใช้งาน Field `checksum` ดักการ Commit ด้วยข้อมูลชุดเดิมที่เคยถูกอัปโหลดเพื่อประหยัดพื้นที่จัดเก็บ (Deduplicate) diff --git a/specs/02-architecture/02-03-data-model.md b/specs/03-Data-and-Storage/99-archives/02-03-data-model.md similarity index 100% rename from specs/02-architecture/02-03-data-model.md rename to specs/03-Data-and-Storage/99-archives/02-03-data-model.md diff --git a/specs/07-database/data-dictionary-v1.7.0.md b/specs/03-Data-and-Storage/99-archives/data-dictionary-v1.7.0.md similarity index 100% rename from specs/07-database/data-dictionary-v1.7.0.md rename to specs/03-Data-and-Storage/99-archives/data-dictionary-v1.7.0.md diff --git a/specs/07-database/deltas/01-add-reference-date.sql 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