在這裏,我將向您展示laravel 8模型事件。Laravel提供eloquent模型事件列表,每個模型事件都有自己的函數。
- creating - 插入前調用。
- creating - 插入後調用。
- updating - 更新前調用。
- updated - 更新後調用。
- deleting - 刪除前調用。
- deleted - 刪除後調用。
- retriveved - 從數據庫查詢數據時調用。
- saving - 創建或更新前調用。
- saved - 創建或更新後調用。
- restoring - 在恢復前調用。
- restored - 恢復後調用。
- replicating - 調用重複數據。
創建Product Model
在這裏,我們將使用事件創建Product模型。所以讓我們創建並寫入以下代碼:
app/Models/Product.php
<?php
namespace App\Models;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Log;
use Str;
class Product extends Model
{
use HasFactory;
protected $fillable = [
'name', 'slug', 'detail'
];
/**
* Write code on Method
*
* @return response()
*/
public static function boot() {
parent::boot();
/**
* Write code on Method
*
* @return response()
*/
static::creating(function($item) {
Log::info('Creating event call: '.$item);
$item->slug = Str::slug($item->name);
});
/**
* Write code on Method
*
* @return response()
*/
static::created(function($item) {
/*
Write Logic Here
*/
Log::info('Created event call: '.$item);
});
/**
* Write code on Method
*
* @return response()
*/
static::updating(function($item) {
Log::info('Updating event call: '.$item);
$item->slug = Str::slug($item->name);
});
/**
* Write code on Method
*
* @return response()
*/
static::updated(function($item) {
/*
Write Logic Here
*/
Log::info('Updated event call: '.$item);
});
/**
* Write code on Method
*
* @return response()
*/
static::deleted(function($item) {
Log::info('Deleted event call: '.$item);
});
}
}
創建記錄:Creating和Created事件
app/Http/Controllers/ProductController.php
<?php
namespace App\Http\Controllers;
use App\Models\Product;
use Illuminate\Http\Request;
class ProductController extends Controller
{
/**
* Display a listing of the resource.
*
* @return \Illuminate\Http\Response
*/
public function index()
{
Product::create([
'name' => 'silver',
'detail' => 'This is silver'
]);
dd('done');
}
}
輸出日誌文件:
[2020-10-20 14:37:26] local.INFO: Creating event call: {"name":"silver","detail":"This is silver"}
[2020-10-20 14:37:26] local.INFO: Created event call: {"name":"silver","detail":"This is silver","slug":"silver","updated_at":"2020-10-20T14:37:26.000000Z","created_at":"2020-10-20T14:37:26.000000Z","id":5}
更新記錄:Updating和Updated事件
app/Http/Controllers/ProductController.php
<?php
namespace App\Http\Controllers;
use App\Models\Product;
use Illuminate\Http\Request;
class ProductController extends Controller
{
/**
* Display a listing of the resource.
*
* @return \Illuminate\Http\Response
*/
public function index()
{
Product::find(5)->update([
'name' => 'silver updated',
'detail' => 'This is silver'
]);
dd('done');
}
}
輸出日誌文件:
[2020-10-20 14:39:04] local.INFO: Updating event call: {"id":5,"name":"silver updated","detail":"This is silver","created_at":"2020-10-20T14:37:26.000000Z","updated_at":"2020-10-20T14:37:26.000000Z","slug":"silver"}
[2020-10-20 14:39:04] local.INFO: Updated event call: {"id":5,"name":"silver updated","detail":"This is silver","created_at":"2020-10-20T14:37:26.000000Z","updated_at":"2020-10-20T14:39:04.000000Z","slug":"silver-updated"}
刪除記錄:Deleted事件
app/Http/Controllers/ProductController.php
<?php
namespace App\Http\Controllers;
use App\Models\Product;
use Illuminate\Http\Request;
class ProductController extends Controller
{
/**
* Display a listing of the resource.
*
* @return \Illuminate\Http\Response
*/
public function index()
{
Product::find(5)->delete();
dd('done');
}
}
輸出日誌文件:
[2020-10-21 03:14:45] local.INFO: Deleted event call: {"id":5,"name":"silver updated","detail":"This is silver","created_at":"2020-10-20T14:37:26.000000Z","updated_at":"2020-10-20T14:39:04.000000Z","slug":"silver-updated"}
https://www.learnfk.com/article-how-to-use-model-events-in-laravel-8example