与自己相关的评论

时间:2015-02-01 15:11:09

标签: mysql cakephp has-many belongs-to

我是CakePHP和整个MVC架构的新手。

我想建立一个类似Reddit的评论系统,其中一条评论hasMany评论,但也有一条评论belongsTo(仅)一条评论。

这是通常的评论部分,其中一条评论可以回复该评论,并且回复可以有自己的答复等:

Nice article!
|
-- I didn't like it!
   |
   -- Well, you should have!
   |
   -- Yeah me neither!

现在我只设置了'hasMany'这样的关系:

class Comment extends AppModel {
    public $hasMany = array(
        'Comment' => array(
            'className' => 'Comment',
            'foreignKey' => 'comment_id',
            'dependent' => FALSE
        )
    );
}

comment_id将包含父注释的id(如果注释没有父项,则为NULL)。

当我要求cakePHP返回属于特定帖子的所有评论时,它会返回给我(我手动添加了评论):

 Array
(
    [0] => Array
        (
            [Comment] => Array
                (
                    [id] => 2
                    [post_id] => 4
                    [comment_id] => 4
                    [body] => Child of 4
                    [created] => 2015-01-31 18:01:27
                    [modified] => 2015-01-31 18:01:27
                    [0] => Array
                        (
                            [id] => 3
                            [post_id] => 4
                            [comment_id] => 2
                            [body] => Child of 2
                            [created] => 2015-01-01 00:00:00
                            [modified] => 2015-01-16 00:00:00
                        )

                    [1] => Array
                        (
                            [id] => 5
                            [post_id] => 4
                            [comment_id] => 2
                            [body] => 2nd child of 2
                            [created] => 2015-01-14 00:00:00
                            [modified] => 2015-01-28 00:00:00
                        )

                )

        )

    [1] => Array
        (
            [Comment] => Array
                (
                    [id] => 3
                    [post_id] => 4
                    [comment_id] => 2
                    [body] => Child of 2
                    [created] => 2015-01-01 00:00:00
                    [modified] => 2015-01-16 00:00:00
                )

        )

    [2] => Array
        (
            [Comment] => Array
                (
                    [id] => 4
                    [post_id] => 4
                    [comment_id] => 
                    [body] => This is the parent of all
                    [created] => 2015-01-21 00:00:00
                    [modified] => 2015-01-30 00:00:00
                    [0] => Array
                        (
                            [id] => 2
                            [post_id] => 4
                            [comment_id] => 4
                            [body] => Child of 4
                            [created] => 2015-01-31 18:01:27
                            [modified] => 2015-01-31 18:01:27
                        )

                )

        )

    [3] => Array
        (
            [Comment] => Array
                (
                    [id] => 5
                    [post_id] => 4
                    [comment_id] => 2
                    [body] => 2nd child of 2
                    [created] => 2015-01-14 00:00:00
                    [modified] => 2015-01-28 00:00:00
                )

        )

)

根据我的理解,它会获取所有评论,然后为每个评论重新搜索数据库以查找具有“子项”的评论。

正确的方法是什么,以使cakePHP返回一个“就绪”数组的注释,如下所示:

Array
(
    [0] => Array
        (
            [Comment] => Array
                (
                    [id] => 4
                    [post_id] => 4
                    [comment_id] => 
                    [body] => This is the parent of all
                    [created] => 2015-01-21 00:00:00
                    [modified] => 2015-01-30 00:00:00
                    [0] => Array
                        (
                            [id] => 2
                            [post_id] => 4
                            [comment_id] => 4
                            [body] => Child of 4
                            [created] => 2015-01-31 18:01:27
                            [modified] => 2015-01-31 18:01:27
                            [0] => Array
                            (
                                [id] => 5
                                [post_id] => 4
                                [comment_id] => 2
                                [body] => 2nd child of 2
                                [created] => 2015-01-14 00:00:00
                                [modified] => 2015-01-28 00:00:00
                            )
                            [1] => Array
                            (
                                [id] => 5
                                [post_id] => 4
                                [comment_id] => 2
                                [body] => 2nd child of 2
                                [created] => 2015-01-14 00:00:00
                                [modified] => 2015-01-28 00:00:00
                            )

                        )
                )
        )
)

1 个答案:

答案 0 :(得分:1)

您可能想要使用find(' threads')。您还可以查看树行为。