按无法正常工作的顺序 CakePHP 2.4答案

【问题标题】：Order by not working properly CakePHP 2.4按无法正常工作的顺序 CakePHP 2.4
【发布时间】：2014-03-19 13:32:10
【问题描述】：

我的控制器中有一个名为 view 的函数，代码如下：

$conditions =   array(
                            'OR'=>array(
                                        'User.id'=>$this->Auth->user("id"),
                                        'Sharing.user_id' => $this->Auth->user("id"),
                                        )
                        );
    $joins      =   array(
                         array('table' => 'clists_sharings',
                                'alias' => 'Sharing',
                                'type' => 'LEFT',
                                'conditions' => array(
                                'Sharing.user_id' => $this->Auth->user("id"),
                                'Sharing.clist_id = Clist.id'
                            )
                        ),
                        array('table' => 'clists_tags',
                                'alias' => 'Tag',
                                'type' => 'LEFT',
                                'conditions' => array(
                                'Tag.clist_id = Clist.id'
                               )
                        ),
                        array('table' => 'clist_orders',
                                'alias' => 'DisplayOrder',
                                'type' => 'LEFT',
                                'conditions' => array(
                                'DisplayOrder.clist_id = Clist.id',
                                'DisplayOrder.user_id' => $this->Auth->user("id")
                               )
                        )
                    );
    $this->Paginator->settings = array(
                                        'conditions' => $conditions,
                                        'limit' => 15,
                                        'joins' => $joins,
                                        'recursive'=>1,
                                        'order'=>array("DisplayOrder.display_order"=>"ASC"),
                                        'group'=>'Clist.id'
                                    );

    $lists  =   $this->Paginator->paginate( 'Clist' );

    $this->set('lists', $lists);

我有这个请求的 sql 日志：

SELECT `Clist`.`id`, `Clist`.`user_id`, `Clist`.`title`, `Clist`.`list_type`, `Clist`.`archived`, `Clist`.`created`, `Clist`.`modified`, `User`.`id`, `User`.`full_name`, `User`.`username`, `User`.`password`, `User`.`email`, `User`.`role_id`, `User`.`is_activated`, `User`.`created`, `User`.`modified`, `User`.`reset`, `User`.`reset_hash` FROM `conduit`.`dll_clists` AS `Clist` LEFT JOIN `conduit`.`dll_clists_sharings` AS `Sharing` ON (`Sharing`.`user_id` = '1' AND `Sharing`.`clist_id` = `Clist`.`id`) LEFT JOIN `conduit`.`dll_clists_tags` AS `Tag` ON (`Tag`.`clist_id` = `Clist`.`id`) LEFT JOIN `conduit`.`dll_clist_orders` AS `DisplayOrder` ON (`DisplayOrder`.`clist_id` = `Clist`.`id` AND `DisplayOrder`.`user_id` = '1') LEFT JOIN `conduit`.`dll_users` AS `User` ON (`Clist`.`user_id` = `User`.`id`) WHERE ((`User`.`id` = 1) OR (`Sharing`.`user_id` = '1')) GROUP BY `Clist`.`id` LIMIT 15

此处缺少 order by 子句。任何人都可以指出我做错了什么。

谢谢。

【问题讨论】：

一行尝试：'order' => array("DisplayOrder.display_order ASC")
试过但没用..

标签： cakephp cakephp-2.4

【解决方案1】：

尚未测试，但您可能需要在设置数组中模型名称的键内设置顺序。

   $this->Paginator->settings = array(
          'conditions' => $conditions,
          'limit' => 15,
          'joins' => $joins,
          'recursive'=>1,
          'DisplayOrder' => array(
              'order'=>array("display_order"=>"ASC"),                  
           ),
          'group'=>'Clist.id'
         );

【讨论】：

【解决方案2】：

我认为你错过了一些关于如何使用 CakePHP 的内容。

您似乎没有使用模型可用的 'belongsTo'、'hasMany' ... 选项。它将允许您为您完成所有这些工作。

点击此处了解更多详情： http://book.cakephp.org/2.0/en/models/associations-linking-models-together.html

关于您的问题，一旦您为 User 表建立了合适的模型，您只需要执行以下操作：

    $hasOne = array(
    'DisplayOrder' => array(
        'className' => 'DisplayOrder',
        'foreignKey' => 'user_id',
        'order' => 'DisplayOrder.display_order ASC'
    ),

【讨论】：