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我试图让 FuelPHP 的 orm 在使用该related()方法时使用复合键。

我有一个带有两个表的数据库设置,我想根据它们的复合键来关联它们。

例如,我通常会在我的 orm 模型中使用这样的关系:

protected static $_has_one = [
    'message_flag' => [
        'key_from' => 'object_id',
        'model_to' => '\ModelClass',
        'key_to' => 'object_id',
        'cascade_save' => false,
        'cascade_delete' => false,
    ],
];

但是我不想使用key_from => 'idand key_to => 'object_id,而是想将它们加入到他们的复合键上,这可能看起来像这样:

protected static $_has_one = [
    'message_flag' => [
        'key_from' => ['object_id', 'other_key'],
        'model_to' => '\ModelClass',
        'key_to' => ['object_id', 'other_key',
        'cascade_save' => false,
        'cascade_delete' => false,
    ],
];

为了澄清起见,FuelPHP 文档中推荐的最上面的示例创建了一个如下所示的查询:

SELECT `t0`.`object_id` AS `t0_c0`, `t0`.`other_key` AS `t0_c1` FROM `myTable` AS `t0` LEFT JOIN `otherTable` AS `t1` ON (`t0`.`object_id` = `t1`.`object_id`);

但是我想用 ORM 构建的查询看起来像这样:

SELECT `t0`.`object_id` AS `t0_c0`, `t0`.`other_key` AS `t0_c1` FROM `myTable` AS `t0` LEFT JOIN `otherTable` AS `t1` ON (`t0`.`object_id` = `t1`.`object_id` AND `t0`.`other_key` = `t1`.`other_key`);
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1 回答 1

0

实际上,我只是尝试了上面的有希望但未记录的示例

protected static $_has_one = [
    'message_flag' => [
        'key_from' => ['object_id', 'other_key'],
        'model_to' => '\ModelClass',
        'key_to' => ['object_id', 'other_key',
        'cascade_save' => false,
        'cascade_delete' => false,
    ],
];

惊讶地说这确实有效。不过,如果其他人有类似的问题,我希望他们能找到这个答案。

于 2015-08-06T19:33:57.967 回答