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($method,['increment','decrement'])){return$this->$method(...$parameters);}if($reso...
$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 //单个模型实例序列化成数组 2 $user = App\User::with('roles')->first(); 3 return $user->toArray(); 4 //集合序列化成数组 5 $users = App\User::all(); 6 return $users->toArray(); 7 8 //单个模型实例序列化成JSON 9 $user = App\User::find(1); 10 return $user->toJson(...
1$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 ...
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 ...
I've been using Laracast as my main Laravel learning resource ever since it went live. I believe it has the best Laravel teaching material out there. Also, the forum is really active, and you will find a solution/answer for any of your questions. ...
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(); ...
$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,// ]; ...