# Organization 2 Migration - File Index

## 📑 Complete File List

This document provides an index of all files related to the Organization 2 (Bangladesh Army) migration.

---

## 🎯 Quick Navigation

| File | Purpose | Location |
|------|---------|----------|
| **Migration Script** | Main SQL migration | `migration_add_org2_data.sql` |
| **Full Documentation** | Complete guide | `MIGRATION_ORG2_README.md` |
| **Quick Reference** | Data cheat sheet | `ORG2_QUICK_REFERENCE.md` |
| **Windows Installer** | Automated script | `run_org2_migration.bat` |
| **Linux/Mac Installer** | Automated script | `run_org2_migration.sh` |
| **Project Summary** | Overview | `../../ORGANIZATION_2_MIGRATION_SUMMARY.md` |
| **This Index** | File directory | `ORGANIZATION_2_INDEX.md` |

---

## 📄 File Details

### 1. migration_add_org2_data.sql
**Type:** SQL Migration Script  
**Size:** ~6 KB  
**Purpose:** Main database migration that creates all data for Organization 2

**Contains:**
- Organization creation (Bangladesh Army)
- 4 Ranks
- 3 Roles
- 2 Units
- 3 Departments
- 4 Designations
- 3 Users

**Usage:**
```bash
mysql -u root -p cms_db < migration_add_org2_data.sql
```

---

### 2. MIGRATION_ORG2_README.md
**Type:** Documentation  
**Size:** ~15 KB  
**Purpose:** Complete usage guide and reference documentation

**Sections:**
- Overview
- What Gets Created
- How to Run the Migration
- Verification Queries
- Data Structure Hierarchy
- Rollback Instructions
- Troubleshooting

**Best For:**
- First-time users
- Detailed instructions
- Troubleshooting issues
- Understanding the migration

---

### 3. ORG2_QUICK_REFERENCE.md
**Type:** Quick Reference Guide  
**Size:** ~12 KB  
**Purpose:** Fast lookup for all created data

**Contains:**
- Organization details
- Complete data tables (Ranks, Roles, Units, etc.)
- Login credentials
- Organizational hierarchy diagram
- Useful SQL queries
- Quick counts

**Best For:**
- Quick lookups
- Reference during development
- Finding IDs and credentials
- SQL query templates

---

### 4. run_org2_migration.bat
**Type:** Windows Batch Script  
**Platform:** Windows  
**Purpose:** Automated migration execution for Windows users

**Features:**
- Interactive MySQL credential prompts
- Error checking
- Success/failure reporting
- User-friendly output

**Usage:**
```cmd
cd backend\database
run_org2_migration.bat
```

---

### 5. run_org2_migration.sh
**Type:** Bash Shell Script  
**Platform:** Linux, macOS, Unix  
**Purpose:** Automated migration execution for Unix-based systems

**Features:**
- Interactive MySQL credential prompts
- Error checking
- Success/failure reporting
- User-friendly output

**Usage:**
```bash
cd backend/database
chmod +x run_org2_migration.sh
./run_org2_migration.sh
```

---

### 6. ORGANIZATION_2_MIGRATION_SUMMARY.md
**Type:** Summary Document  
**Location:** Project Root (`../../`)  
**Purpose:** High-level overview and quick start guide

**Contains:**
- Quick start instructions
- File listing
- Summary of created data
- Verification steps
- Links to detailed docs

**Best For:**
- Project overview
- Quick start
- Finding other documentation
- Understanding scope

---

### 7. ORGANIZATION_2_INDEX.md
**Type:** Index/Directory  
**Purpose:** This file - directory of all migration files

---

## 🚀 Getting Started

### New Users - Start Here

1. **Read the Summary** (5 min)
   - File: `../../ORGANIZATION_2_MIGRATION_SUMMARY.md`
   - Get overview of what will be created

2. **Review Quick Reference** (10 min)
   - File: `ORG2_QUICK_REFERENCE.md`
   - See all data that will be created
   - Note the login credentials

3. **Run Migration** (2 min)
   - Windows: Run `run_org2_migration.bat`
   - Linux/Mac: Run `run_org2_migration.sh`
   - Manual: Use `mysql` command

4. **Verify Success** (5 min)
   - Use verification queries from Quick Reference
   - Test login with created credentials

5. **Keep for Reference**
   - Bookmark `ORG2_QUICK_REFERENCE.md`
   - Keep `MIGRATION_ORG2_README.md` for troubleshooting

---

## 📊 Decision Tree: Which File to Use?

```
Need to run the migration?
│
├─ YES
│  │
│  ├─ Windows user?
│  │  └─ Use: run_org2_migration.bat
│  │
│  ├─ Linux/Mac user?
│  │  └─ Use: run_org2_migration.sh
│  │
│  └─ Prefer manual control?
│     └─ Use: migration_add_org2_data.sql with mysql command
│
└─ NO
   │
   ├─ Need quick data lookup?
   │  └─ Use: ORG2_QUICK_REFERENCE.md
   │
   ├─ Need detailed instructions?
   │  └─ Use: MIGRATION_ORG2_README.md
   │
   ├─ Need overview?
   │  └─ Use: ORGANIZATION_2_MIGRATION_SUMMARY.md
   │
   └─ Finding files?
      └─ Use: ORGANIZATION_2_INDEX.md (this file)
```

---

## 📐 File Size Summary

| File | Approx. Size | Type |
|------|--------------|------|
| migration_add_org2_data.sql | 6 KB | SQL |
| MIGRATION_ORG2_README.md | 15 KB | Markdown |
| ORG2_QUICK_REFERENCE.md | 12 KB | Markdown |
| run_org2_migration.bat | 2 KB | Batch |
| run_org2_migration.sh | 2 KB | Shell |
| ORGANIZATION_2_MIGRATION_SUMMARY.md | 8 KB | Markdown |
| ORGANIZATION_2_INDEX.md | 5 KB | Markdown |
| **Total** | **~50 KB** | - |

---

## 🔗 File Relationships

```
ORGANIZATION_2_MIGRATION_SUMMARY.md (Root)
    ├─ Points to all files
    └─ Quick start guide

backend/database/
    │
    ├─ migration_add_org2_data.sql
    │   └─ THE actual migration
    │
    ├─ MIGRATION_ORG2_README.md
    │   ├─ Full documentation
    │   └─ References migration_add_org2_data.sql
    │
    ├─ ORG2_QUICK_REFERENCE.md
    │   ├─ Quick lookup
    │   ├─ References migration_add_org2_data.sql
    │   └─ References MIGRATION_ORG2_README.md
    │
    ├─ run_org2_migration.bat
    │   └─ Executes: migration_add_org2_data.sql
    │
    ├─ run_org2_migration.sh
    │   └─ Executes: migration_add_org2_data.sql
    │
    └─ ORGANIZATION_2_INDEX.md (This file)
        └─ Directory of all files
```

---

## 📝 Usage by Scenario

### Scenario 1: First Time Setup
**Goal:** Install Organization 2 data

**Files Needed:**
1. `ORGANIZATION_2_MIGRATION_SUMMARY.md` (read overview)
2. `run_org2_migration.bat` or `run_org2_migration.sh` (execute)
3. `ORG2_QUICK_REFERENCE.md` (verify)

---

### Scenario 2: Troubleshooting Failed Migration
**Goal:** Fix migration issues

**Files Needed:**
1. `MIGRATION_ORG2_README.md` (troubleshooting section)
2. `migration_add_org2_data.sql` (review SQL)
3. `ORG2_QUICK_REFERENCE.md` (verification queries)

---

### Scenario 3: Looking Up Data
**Goal:** Find user credentials, IDs, etc.

**Files Needed:**
1. `ORG2_QUICK_REFERENCE.md` (primary reference)
2. `MIGRATION_ORG2_README.md` (detailed structure)

---

### Scenario 4: Creating Organization 3
**Goal:** Use Org 2 as template for Org 3

**Files Needed:**
1. `migration_add_org2_data.sql` (copy as template)
2. `MIGRATION_ORG2_README.md` (customization section)
3. `ORGANIZATION_2_MIGRATION_SUMMARY.md` (ID ranges)

---

### Scenario 5: Manual SQL Execution
**Goal:** Run migration step by step

**Files Needed:**
1. `migration_add_org2_data.sql` (open in SQL client)
2. `MIGRATION_ORG2_README.md` (reference)
3. `ORG2_QUICK_REFERENCE.md` (verification)

---

## 🎓 Learning Path

### Beginner
1. Read: `ORGANIZATION_2_MIGRATION_SUMMARY.md`
2. Execute: `run_org2_migration.bat` or `.sh`
3. Reference: `ORG2_QUICK_REFERENCE.md`

### Intermediate
1. Read: `MIGRATION_ORG2_README.md`
2. Review: `migration_add_org2_data.sql`
3. Execute: Manual mysql command
4. Verify: Use SQL queries from docs

### Advanced
1. Study: `migration_add_org2_data.sql`
2. Customize: Create Organization 3
3. Extend: Add more entities
4. Document: Update reference docs

---

## 🔍 Search Tips

### Find Login Credentials
- File: `ORG2_QUICK_REFERENCE.md`
- Section: "Login Credentials" or "Users"

### Find Verification Queries
- File: `ORG2_QUICK_REFERENCE.md`
- Section: "Useful SQL Queries"

### Find Troubleshooting
- File: `MIGRATION_ORG2_README.md`
- Section: "Troubleshooting"

### Find Rollback Instructions
- File: `MIGRATION_ORG2_README.md` OR `ORG2_QUICK_REFERENCE.md`
- Section: "Rollback"

### Find Data Structure
- File: `ORG2_QUICK_REFERENCE.md`
- Section: "Organizational Hierarchy"

---

## 📅 Document History

| Version | Date | Changes |
|---------|------|---------|
| 1.0 | Oct 25, 2025 | Initial creation |

---

## 💡 Tips

- **Bookmark** `ORG2_QUICK_REFERENCE.md` for daily use
- **Keep** `MIGRATION_ORG2_README.md` for deep dives
- **Use** automation scripts for easy execution
- **Reference** this index when lost

---

**Location:** `backend/database/ORGANIZATION_2_INDEX.md`  
**Created:** October 25, 2025  
**Total Files:** 7 files, ~50 KB

