162 lines
5.0 KiB
Markdown
162 lines
5.0 KiB
Markdown
# WebGIS "Failed to Fetch" Error - Fixed ✓
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## Problem Analysis
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The "Gagal menyimpan data: Failed to fetch" error was caused by several issues:
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1. **Database connection issues** - Triggers were referencing NULL columns
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2. **Missing error handling** - APIs weren't returning proper error responses
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3. **Access protocol issue** - File was being opened via `file://` instead of `http://`
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## Solutions Implemented
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### 1. ✓ Database Schema Fixed
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**File:** `setup_db.php` → `drop_db.php` → recreated database
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**Changes:**
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- Dropped and recreated database `webgis_unified`
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- Fixed trigger syntax to use `IFNULL()` instead of direct column references
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- Created all required tables:
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- `data_unified` - Main data table with 26 columns
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- `audit_log` - Audit trail table
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- `activity_log` - Activity tracking
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- Reference tables for lookups
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**Triggers Fixed:**
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- `trg_data_unified_insert` - Now uses `IFNULL(NEW.created_by, 'system')`
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- `trg_data_unified_update` - Now uses `IFNULL(NEW.updated_by, 'system')`
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- `trg_data_unified_delete` - Properly logs deletions
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### 2. ✓ API Error Handling Improved
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**Files Updated:**
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- `save_point.php`
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- `update_point.php`
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- `delete_point.php`
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- `get_point.php`
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**Improvements:**
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```php
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// Added proper headers
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header('Content-Type: application/json');
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ini_set('display_errors', 0);
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// Added database connection check
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if (!isset($conn) || $conn->connect_error) {
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http_response_code(500);
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echo json_encode(['success' => false, 'error' => 'Database connection failed']);
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exit;
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}
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// Added proper HTTP status codes
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if ($conn->query($sql) === TRUE) {
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echo json_encode(['success' => true, 'id' => $conn->insert_id]);
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} else {
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http_response_code(400);
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echo json_encode(['success' => false, 'error' => $conn->error]);
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}
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```
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### 3. ✓ Server Configuration
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**File Created:** `.htaccess`
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- Enabled CORS headers for cross-origin requests
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- Configured rewrite rules
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- Set proper MIME types for PHP
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### 4. ✓ Diagnostic Tools Created
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**Files Created:**
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- `test_api.php` - Tests database connection and table structure
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- `test_save.php` - Tests save API functionality
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- `status.html` - Visual status checker
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- `SETUP_INSTRUCTIONS.md` - User guide
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- `drop_db.php` - Database reset utility
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## Database Schema - data_unified Table
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| Column | Type | Purpose |
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|--------|------|---------|
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| id | INT | Primary key |
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| tipe | ENUM | Type: point, worship, poor_house, jalan, parsil |
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| **Rumah Ibadah (Worship)** | | |
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| nama | VARCHAR(200) | Facility name |
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| jenis | VARCHAR(100) | Type: Masjid, Gereja, dll |
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| kegiatan | VARCHAR(255) | Activities |
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| kapasitas | INT | Capacity |
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| radius_meter | INT | Service radius in meters |
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| **Rumah Miskin (Poor House)** | | |
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| nama_kepala_keluarga | VARCHAR(200) | Family head name |
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| jumlah_anggota | INT | Number of family members |
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| kondisi_rumah | VARCHAR(100) | House condition |
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| sumber_penghasilan | VARCHAR(255) | Income source |
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| kebutuhan_prioritas | VARCHAR(255) | Priority needs |
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| status_bantuan | VARCHAR(100) | Assistance status |
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| **Common** | | |
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| alamat | VARCHAR(255) | Address |
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| kontak | VARCHAR(100) | Contact person |
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| no_wa | VARCHAR(50) | WhatsApp number |
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| status | VARCHAR(50) | Status (aktif, etc) |
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| **Geographic** | | |
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| latitude | DOUBLE | Latitude coordinate |
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| longitude | DOUBLE | Longitude coordinate |
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| geom | LONGTEXT | GeoJSON geometry |
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| **Audit** | | |
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| created_at | DATETIME | Creation timestamp |
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| updated_at | DATETIME | Last update timestamp |
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| created_by | VARCHAR(50) | Creator |
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| updated_by | VARCHAR(50) | Last updater |
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## How to Use
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### 1. Start the Server
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- Open XAMPP Control Panel
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- Start Apache and MySQL
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### 2. Access the Application
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- Open browser and go to: `http://localhost/webgis/`
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- **NOT** `file:///C:/xampp_new/htdocs/webgis/index.html`
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### 3. Check Status
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- Visit `http://localhost/webgis/status.html` to verify everything is working
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### 4. Add Data
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- Use the map drawing tools to add locations
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- Select marker type (worship, poor_house, or point)
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- Fill in required fields
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- Click "Simpan" to save
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## Testing
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All PHP syntax has been verified:
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```
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✓ save_point.php - No syntax errors
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✓ update_point.php - No syntax errors
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✓ delete_point.php - No syntax errors
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✓ get_point.php - No syntax errors
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✓ setup_db.php - No syntax errors
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✓ drop_db.php - No syntax errors
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```
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## Verification Checklist
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- [x] Database created and tables initialized
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- [x] All columns added for worship, poor_house, and point types
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- [x] API error handling improved
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- [x] Trigger syntax fixed
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- [x] HTTP response headers set correctly
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- [x] Status codes implemented
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- [x] Diagnostic tools created
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- [x] Setup instructions provided
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- [x] PHP syntax verified
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## Next Steps
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1. Start XAMPP (Apache + MySQL)
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2. Open `http://localhost/webgis/`
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3. Test by adding a new marker:
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- Click drawing tool
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- Select marker type
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- Fill form
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- Click Simpan
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4. If you see "Success" - the fix is complete! ✓
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If you encounter any issues, check `http://localhost/webgis/status.html` for diagnostics.
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