别急,get() 、find() 不都是在 查询构造器 中的方法嘛。我们来看看 Model 中的 __call() 这个方法。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 publicfunction__call($method,$parameters){if(in_array($method,['increment','decrement'])){retur
$post = Post::with('author')->findOrFail(1); $author = $post->author; 渴求式加载会在查询到模型实例结果后,通过 IN 查询获取关联结果,并将其附着到对应的模型实例上,在后面访问的时候不会再对数据库进行查询。所以不管模型实例有多少个,关联结果只会查询一次,加上模型本身查询总共是两次查询,在列表查...
phpnamespaceIlluminate\Database\Query;useClosure;useIlluminate\Support\Collection;useIlluminate\Database\ConnectionInterface;useIlluminate\Database\Query\Grammars\Grammar;useIlluminate\Database\Query\Processors\Processor;classBuilder{//methods and variables come here} 如您所见,Eloquent 模型使用一些类,如Database...
1$collection = collect([1, 2, 3, 4]); 2 3$collection->count(); 4 5// 4diff()The diff method compares the collection against another collection or a plain PHP array based on its values. This method will return the values in the original collection that are not present in the ...
findOrFail($key) ThefindOrFailmethod returns the model that has a primary key matching the given key or throws anIlluminate\Database\Eloquent\ModelNotFoundExceptionexception if no matching model can be found in the collection: 1$users=User::all(); ...
1 $user = App\User::find(1); 2 $user->first_name = 'Sally';//将自动调用相应的修改器 3 $firstName = $user->first_name;//将自动调用相应的访问器 追加属性:在转换模型到数组或JSON时,你希望添加一个在数据库中没有对应字段的属性,首先你需要为这个值定义一个 访问器,然后添加该属性到改模型...
class OrdersController extends Controller{ // ... public function getAllByCustomers(Request $request, array $ids) { $customers = Customer::findMany($ids); $orders = collect(); // new collection foreach ($customers as $customer) { $orders = $orders->merge($customer->orders); } return ...
$flight = App\Flight::find(1); $flight->name = 'New Flight Name'; $flight->save(); $filght->delete(); Eloquent ORM既可以通过静态调用执行方法,也可以先获取到模型对象,然后执行方法。但他们实质是一样的。在Model中定义的静态方法如下: ...
composer require toin0u/geocoder-laravel If you are running Laravel 5.5 (the package will be auto-discovered), skip this step.Find theprovidersarray key inconfig/app.phpand register theGeocoder Service Provider: // 'providers' => [Geocoder\Laravel\Providers\GeocoderService::class,// ]; ...
Collection MethodDescription evaluate()Run Symfony Expression Language on items cast()Cast items to primitive or class dataGet()dot notated get dataSet()dot notated set toDot()toDotclass call()call function on items pushTo()push to other array/collection ...