在这里，我将向您展示laravel 8模型事件。Laravel提供eloquent模型事件列表，每个模型事件都有自己的函数。
creating - 插入前调用。
creating - 插入后调用。
updating - 更新前调用。
updated - 更新后调用。
deleting - 删除前调用。
deleted - 删除后调用。
retriveved - 从数据库查询数据时调用。
saving - 创建或更新前调用。
saved - 创建或更新后调用。
restoring - 在恢复前调用。
restored - 恢复后调用。
replicating - 调用重复数据。
创建Product Model
在这里，我们将使用事件创建Product模型。所以让我们创建并写入以下代码:
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);
});
}
}
创建记录: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');
}
}输出日志文件:
[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}更新记录: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');
}
}输出日志文件:
[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"}删除记录: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');
}
}输出日志文件:
[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"}點(diǎn)擊查看更多內(nèi)容
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