Append attributes to query when building a query. from HasAttributes $this setAppends(array $appends) Set the accessors to append to model arrays. from HasAttributes bool hasAppended(string $attribute) Return whether the accessor attribute has been appended. from HasAttributes array getMutated...
$users = User::with(array('posts' => function($query) { $query->where('title', 'like', '%first%'); }))->get(); 在这个例子中,我们预先加载用户的文章,但只限于文章的 title 字段中包含单词 "first" 的文章:延迟预先加载从一个已存在的模型中直接预先加载相关的模型也是可能的。这在动态的...
No model events are fired when updating a set of models via the Eloquent query builder.Deleting An Existing ModelTo delete a model, simply call the delete method on the instance:$user = User::find(1); $user->delete();Deleting An Existing Model By Key...
<?php // The updated_at column will not be updated Post::withoutTimestamps(fn () => $post->increment(['reads'])); Tip #40 💡: Random Ordering Did you know that Laravel comes with the "inRandomOrder" method, which sorts query results randomly? 🚀 $randomUser = DB::table('user...
namespace Illuminate\Database\Eloquent;classBuilder{publicfunction__construct(QueryBuilder $query){$this->query=$query;}publicfunctionwhere($column,$operator=null,$value=null,$boolean='and'){if($columninstanceofClosure){$query=$this->model->newQueryWithoutScopes();$column($query);$this->query-...
If you need to process a lot (thousands) of Eloquent records, using the chunk command will allow you to do without eating all of your RAM:User::chunk(200, function($users){ foreach ($users as $user) { // }});The first argument passed to the method is the number of records you ...
① 属性覆盖前提 : 在父类中使用 open 修饰的属性 , 可以在子类中被覆盖 ;
protected function performUpdate(Builder $query, array $options = []) { if($this->timestamps && array_get($options, 'timestamps', true)) { $this->updateTimestamps(); } $product = Product::find($id); $product->updated_at = '2015 -01-01 10:00:00'; ...
分页时传递GET参数 $users->appends(Request::except('page'))->links() 监听SQL DB::enableQueryLog(); 执行语句 dd(DB::getQueryLog()); TINKER 使用laravel提供的tinker 可以方便的在命令行进行调试。 进入tinker环境 php artisan tinker 新增用户练习 >>> use \App\User ...
Bus::assertDispatchedWithoutChain(ShipOrder::class); Testing Chain ModificationsIf a chained job prepends or appends jobs to an existing chain, you may use the job's assertHasChain method to assert that the job has the expected chain of remaining jobs:...