检索按剧院分组的电影放映时间：Movie->Showtimes<-CakePHP 中的剧院

Question

当您观看电影时，我想显示剧院组织的放映时间（movie_times 表）。我可以很好地获取所有数据，但它会像这样返回每个 MovieTime 的剧院数据：

[0] =>
    [Movie] =>
        [name] => Herp de Derp
    [MovieTime] =>
        [0] =>
            [datetime] => 2011-07-06 18:30:00
            [Theater] =>
                [name] => Awesome Cinemas
                [address] => 1234 Street Ln
        [1] =>
            [datetime] => 2011-07-06 20:30:00
            [Theater] =>
                [name] => Awesome Cinemas
                [address] => 1234 Street Ln
        [2] =>
            [datetime] => 2011-07-06 20:30:00
            [Theater] =>
                [name] => Crappy Movies 10
                [address] => 678 Avenue St

您可以想象，剧院数据存在大量重复。

有没有办法我可以获得相同的数据，而是像这样获取与其中的电影时间分组的剧院数据？：

[0] =>
    [Movie] =>
        [name] => Herp de Derp
    [Theater] =>
        [0] =>
            [name] => Awesome Cinemas
            [address] => 1234 Street Ln
            [MovieTime] =>
                [0] =>
                    [datetime] => 2011-07-06 18:30:00
                [1] =>
                    [datetime] => 2011-07-06 20:30:00
                [2] =>
                    [datetime] => 2011-07-06 22:30:00

        [1] =>
            [name] => Awesome Cinemas
            [address] => 1234 Street Ln

我的关联如下：

Movie hasMany MovieTime
MovieTime belongsTo Movie

Theater hasMany MovieTime
MovieTime belongsTo Theater

如您所见，电影和剧院之间没有直接联系 - 它使用 MovieTime 作为中间人。这些关联是合乎逻辑的（至少对我而言）——但如果我必须将它们更改为不同的（但也是合乎逻辑的）设置，我当然愿意听。

我目前正在使用它来获取我的数据：

        $data = $this->find("first", array(
            'conditions' => array(
                array('Movie.slug' => $slug)
            ),
            'fields' => array('id', 'name', 'slug', 'url', 'runtime'),
            'contain' => array(
                'MovieTime' => array(
                    'fields' => array('datetime', 'screen_number'),
                    'Theater' => array(
                        'fields' => array('id', 'slug', 'name', 'address', 'phone'),
                        'City' => array(
                            'fields' => array('id', 'name', 'st')
                        ),
                    ),
                ),
            ),
        )
    );

Answer 1

试试 GROUP BY。您只需将 'group' => 'Put here de Model.Id' 添加到您的查找中。

试试这个：

$data = $this->find("first", array(
            'conditions' => array(
                array('Movie.slug' => $slug)
            ),
            'fields' => array('id', 'name', 'slug', 'url', 'runtime'),
            'contain' => array(
                'MovieTime' => array(
                    'fields' => array('datetime', 'screen_number'),
                    'group' => 'Theater.id',
                    'Theater' => array(
                        'fields' => array('id', 'slug', 'name', 'address', 'phone'),
                    'City' => array(
                        'fields' => array('id', 'name', 'st')
                    ),
                    ),
                ),
            ),
        ),
    );

欲了解更多信息，请查看以下两个链接：

• http://debuggable.com/posts/how-to-group-by-in-cakephps-new-release-part-2:4850d2c9-edbc-4f0e-9e0e-07d64834cda3

• http://nuts-and-bolts-of-cakephp.com/2008/06/03/new-way-to-group-by-in-cakephp