执行查询

时间:2016-07-03 00:53:23

标签: php phalcon phalcon-orm

我有这样的查询:

$phsql = "
    SELECT s.id AS siteId, s.name 
    FROM site s
    INNER JOIN profiles p ON s.id = p.siteId
    INNER JOIN users_profiles up ON up.profilesId = p.id
        AND p.name = 'admin'
        AND up.usersId = 2
";

我在模型方法中转换为以下内容:

$sites = Site::query()
            ->innerJoin('Profiles', 'Sites.id = Profiles.siteId')
            ->innerJoin('UsersProfiles', 'UsersProfiles.profilesId = Profiles.id')
            ->andWhere('Profiles.name = name')
            ->andWhere('UsersProfiles.usersId = :usersId:', ['userId' => $admin_id])->execute();

运行时会出现错误:

  

无法加载模型配置文件

请注意我在Site型号中运行此功能。

更新

我试过了:

    $sites = $this->modelsManager->createBuilder() 
    ->from('myApp\Models\Site') 
   ->innerJoin('myApp\Models\Profiles','myApp\Models\Site.id = myApp\Models\Profiles.siteId') 
->andWhere("myApp\Models\Profiles.name = 'admin' ")
 ->where("myApp\Models\UsersProfiles.profilesId = 2")
 ->getQuery()
 ->execute();

现在它给出了错误:

  

未知的型号或别名' myApp \ Models \ UsersProfiles' (11),准备时:SELECT [myApp \ Models \ Site]。* FROM [myApp \ Models \ Site] INNER JOIN [myApp \ Models \ Profiles] ON myApp \ Models \ Site.id = myApp \ Models \ Profiles.siteId在哪里myApp \ Models \ UsersProfiles.profilesId = 2

1 个答案:

答案 0 :(得分:3)

查看代码,我发现了两个问题:

1)你的第二行的> execute()应该抛出一个解析错误?

->innerJoin('Profiles', 'Sites.id = Profiles.siteId')->execute();

2)您必须为模型添加名称空间,请参阅下面的代码。

查询的一个工作示例:

Objects::query()
    ->columns([
        'Models\Objects.id AS objectID',
        'Models\ObjectLocations.id AS locationID',
        'Models\ObjectCategories.category_id AS categoryID',
    ])
    ->innerJoin('Models\ObjectLocations', 'Models\Objects.id = Models\ObjectLocations.object_id')
    ->innerJoin('Models\ObjectCategories', 'Models\Objects.id = Models\ObjectCategories.object_id')
    ->where('Models\Objects.is_active = 1')
    ->andWhere('Models\Objects.id = :id:', ['id' => 2])        
    ->execute();  

您可以在关系中添加第三个参数(别名)以减少命名空间并提高代码可读性:

->innerJoin('Models\ObjectLocations', 'loc.object_id = obj.id', 'loc');

此处有更多信息:https://docs.phalconphp.com/en/latest/api/Phalcon_Mvc_Model_Criteria.html

另请注意:使用where()和andWhere()将where子句添加到查询中。在第一个查询示例中,子句在第二个连接语句中,而在Phalcon查询中,where子句被添加到整个查询中。如果您确实只希望这些条件用于第二个连接,请将它们添加到第二个连接参数,如下所示:

->innerJoin(
   'Models\ObjectCategories', 
   'Models\Objects.id = Models\ObjectCategories.object_id AND ... AND ... AND ...'
)
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