Laravel's database query builder provides a convenient, fluent interface to creating and running database queries. It can be used to perform most database operations in your application and works perfectly with all of Laravel's supported database systems....
The Laravel query builder can handle these as well:1DB::table('users') 2 ->where('name', '=', 'John') 3 ->orWhere(function($query) 4 { 5 $query->where('votes', '>', 100) 6 ->where('title', '<>', 'Admin'); 7 }) 8 ->get();...
The database query builder provides a convenient, fluent interface to creating and running database queries. It can be used to perform most database operations in your application, and works on all supported database systems.Note: The Laravel query builder uses PDO parameter binding to protect ...
public function query() { return new QueryBuilder( $this, $this->getQueryGrammar(), $this->getPostProcessor() ); } } 在App/Providers中创建了名为CustomDatabaseServiceProvider的服务提供程序。这里我只是操纵了registerConnectionServices函数。我进一步注释了Illuminate\Database\DatabaseServiceProvider::clas...
Database: Query BuilderIntroductionLaravel's database query builder provides a convenient, fluent interface to creating and running database queries. It can be used to perform most database operations in your application and works on all supported database systems.The...
You may also specify a custom key column for the returned array:$roles = DB::table('roles')->lists('title', 'name'); foreach ($roles as $name => $title) { echo $title; } AggregatesThe query builder also provides a variety of aggregate methods, such as count, max, min, avg, ...
8 Rule::exists('staff')->where(function (Builder $query) { 9 $query->where('account_id', 1); 10 }), 11 ], 12]);You may explicitly specify the database column name that should be used by the exists rule generated by the Rule::exists method by providing the column name as the ...
Sorting a query based on a request:/users?sort=id: $users= QueryBuilder::for(User::class) ->allowedSorts('id') ->get();// all `User`s sorted by ascending id Read more about sorting features like: custom sorts, sort direction, ... ...
Sorting a query based on a request:/users?sort=id: $users= QueryBuilder::for(User::class) ->allowedSorts('id') ->get();// all `User`s sorted by ascending id Read more about sorting features like: custom sorts, sort direction, ... ...
注意在这里我们使用了laravel5提供的route model binding特性,我们在控制器中使用Task类typehinting了task参数,而该task参数,而该task参数和routes.php中定义的wildcast路由Route::get('tasks/{task}','xxx'}定义的task相匹配,因此laravel在调用我们的控制器时自动注入Task模型(以id为索引)。这个功能后续再做进一步的...