使用 contain 的 CakePHP3 自定义查找器方法在尝试显示关联的模型字段时不起作用

Question

这是我在里面的自定义查找器方法DynamicViewsTable.php

public function findAccessibleByUser(Query $query, array $options)
    {
        if (empty($options['User']['id'])) {
            throw new Exception("Current User not set", 1);    
        }

        $query->select(['DynamicViews.id', 'DynamicViews.title', 'UsersAccessDynamicViews.ordinal_ranking'])
              ->contain(['UsersAccessDynamicViews'])
              ->where([
                    'UsersAccessDynamicViews.user_id' => $options['User']['id'],
                ])
              ->order(['UsersAccessDynamicViews.ordinal_ranking' => 'ASC']);
        return $query;
    }

我不断收到的错误是：

Error: SQLSTATE[42S22]: Column not found: 1054 Unknown column 'UsersAccessDynamicViews.ordinal_ranking' in 'field list'

错误页面中显示的查询是：

SELECT DynamicViews.id AS `DynamicViews__id`, DynamicViews.title AS `DynamicViews__title`, UsersAccessDynamicViews.ordinal_ranking AS `UsersAccessDynamicViews__ordinal_ranking` FROM dynamic_views DynamicViews WHERE UsersAccessDynamicViews.user_id = :c0 ORDER BY UsersAccessDynamicViews.ordinal_ranking ASC

DynamicViews hasMany UsersAccessDynamicViews

Answer 1

虽然您可以使用 contain() 包含任何类型的关联，但匹配某些内容仅适用于 1:1 和 n:1 关联，即 hasOne 和 belongsTo，因为这些是 contain() 将加入相关 table 的唯一协会。

对于所有其他目的，您必须使用 matching() (requires a recent dev snapshot in order to work when combined with contain(), escpecially for more complex combinations)

$query
    ->select(['DynamicViews.id', 'DynamicViews.title', 'UsersAccessDynamicViews.ordinal_ranking'])
    ->contain(['UsersAccessDynamicViews'])
    ->matching('UsersAccessDynamicViews', function ($q) use ($options) {
        return $q->where([
            'UsersAccessDynamicViews.user_id' => $options['User']['id']
        ]);
    })
    ->order(['UsersAccessDynamicViews.ordinal_ranking' => 'ASC']);

join in 手动相关tables:

$query
    ->select(['DynamicViews.id', 'DynamicViews.title', 'UsersAccessDynamicViews.ordinal_ranking'])
    ->contain(['UsersAccessDynamicViews'])
    ->innerJoin('UsersAccessDynamicViews', [
        'UsersAccessDynamicViews.dynamic_view_id = DynamicViews.id',
        'UsersAccessDynamicViews.user_id' => $options['User']['id']
    ])
    ->order(['UsersAccessDynamicViews.ordinal_ranking' => 'ASC']);

或向对方查询table。

另见

使用 contain 的 CakePHP3 自定义查找器方法在尝试显示关联的模型字段时不起作用

CakePHP3 custom finder method using contain and does not work when attempt to display the associated model field

php

orm

cakephp-3.0