$sortBy = null; $users = DB::table('users') ->when($sortBy, function ($query, $sortBy) { return $query->orderBy($sortBy); }, function ($query) { return $query->orderBy('name'); }) ->get();插入查询构造器还提供了 insert 方法用于插入记录到数据库中。 insert 方法接收数组形式...
DB::table('users') ->where('name', '=', 'John') ->orWhere(function ($query) { $query->where('votes', '>', 100) ->where('title', '<>', 'Admin'); }) ->get();如你所见,上面例子会将闭包传入orWhere 方法,以告诉查询语句构造器开始一个约束分组。此闭包接收一个查询语句构造器的...
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.The Laravel query builder uses PDO parameter binding to protect your ...
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.The Laravel query builder uses PDO parameter binding to protect your ...
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 on all supported database systems.The Laravel query builder uses PDO parameter binding to protect your...
public function toSql() { return $this->grammar->compileSelect($this); } /** * 将Select查询编译成SQL语句 * @param \Illuminate\Database\Query\Builder $query * @return string */ public function compileSelect(Builder $query) { $original = $query->columns; //如果没有QueryBuilder里没制定...
namespace Illuminate\Database\Eloquent; class Builder { public function __construct(QueryBuilder $query) { $this->query = $query; } public function where($column, $operator = null, $value = null, $boolean = 'and') { if ($column instanceof Closure) { ...
说明:本文主要学习Laravel Database模块的Query Builder源码。实际上,Laravel通过Schema Builder来设计数据库,通过Query Builder来CURD数据库。Query Builder并不复杂或神秘,只是在PDO扩展的基础上又开放封闭的包装了一层,提供了fluent api,使得书写的代码也很简洁流畅。在看下Query Builder源码之前,先大概探索下illuminate/...
Laravel5.3之QueryBuilder源码解析(中) 实际上,上篇已经聊到QueryBuilder通过连接工厂类ConnectionFactory构造出了MySqlConnection实例(假设驱动driver是mysql),在该MySqlConnection...Database\Query\Processors\Processor,其中\Illuminate\Database\MysqlConnector是在ConnectionFactory中构造出来的并通过...OK,那QueryBuilder是...
* @param \Illuminate\Database\Query\Builder $query * @return void */ public function __construct(QueryBuilder $query) { $this->query = $query; } 可见两者之间并没有继承的关系,而是Eloquent\Builder采用了代理模式对Query\Builder进行了操作1