# Changes Implemented

## 1. Delete Button for Events

The delete button was already implemented in the event edit page:
- The button exists in `/oedb/resources/demo/templates/edit.html` (line 77)
- The JavaScript functionality to send a DELETE request is implemented in `/oedb/resources/demo/static/edit.js` (lines 167-209)
- When clicked, the button sends a DELETE request to `/event/{id}` and handles the response

## 2. Force Atlas Graph in Live Page

Modified the force atlas graph in the live page to use event types from the last 1000 events:
- Updated the API URL in `/oedb/resources/live.py` from:
  ```javascript
  const API_URL = 'https://api.openeventdatabase.org/event?when=last7days&limit=2000';
  ```
  to:
  ```javascript
  const API_URL = 'https://api.openeventdatabase.org/event?limit=1000';
  ```
- The existing implementation already groups events by "what" field in the `buildFamilyGraph` function (lines 321-348)

## 3. Database Dump Endpoints

Created new endpoints for database dumps:

1. Created a new file `/oedb/resources/db_dump.py` with two resource classes:
   - `DbDumpListResource`: Lists existing database dumps
   - `DbDumpCreateResource`: Creates new dumps in SQL and GeoJSON formats

2. Implemented features:
   - Created a directory to store database dumps
   - Used `pg_dump` to create SQL dumps
   - Queried the database and converted to GeoJSON for GeoJSON dumps
   - Included timestamps in the filenames (e.g., `oedb_dump_20250926_145800.sql`)
   - Added proper error handling and logging

3. Updated `/backend.py` to:
   - Import the new resources
   - Register the new endpoints:
     - `/db/dumps`: Lists all available database dumps
     - `/db/dumps/create`: Creates new database dumps

## Usage

### Listing Database Dumps

Send a GET request to `/db/dumps` to get a list of all available database dumps:

```
GET /db/dumps
```

Response:
```json
{
  "dumps": [
    {
      "filename": "oedb_dump_20250926_145800.sql",
      "path": "/db/dumps/oedb_dump_20250926_145800.sql",
      "size": 1234567,
      "created": "2025-09-26T14:58:00",
      "type": "sql"
    },
    {
      "filename": "oedb_dump_20250926_145800.geojson",
      "path": "/db/dumps/oedb_dump_20250926_145800.geojson",
      "size": 7654321,
      "created": "2025-09-26T14:58:00",
      "type": "geojson"
    }
  ]
}
```

### Creating Database Dumps

Send a POST request to `/db/dumps/create` to create new database dumps:

```
POST /db/dumps/create
```

Response:
```json
{
  "message": "Database dumps created successfully",
  "dumps": [
    {
      "filename": "oedb_dump_20250926_145800.sql",
      "path": "/db/dumps/oedb_dump_20250926_145800.sql",
      "type": "sql",
      "size": 1234567
    },
    {
      "filename": "oedb_dump_20250926_145800.geojson",
      "path": "/db/dumps/oedb_dump_20250926_145800.geojson",
      "type": "geojson",
      "size": 7654321
    }
  ]
}
```