Question

I have implemented comments functionality in one of my sites using CakePHP and it s find( threaded ) feature.

When I delete a parent comment, I want all it s child comments (n-level children) to get deleted too, using CakePHP model s delete method.

情况如下:

id = 5名父母_id = 0;
id = 6名父母_id = 5;
id = 7名父母_id = 5;
id = 8名父母_id = 7;

And I do:

$this->Comment->id = 5;
$this->Comment->delete();

I want records with comment id = 5, 6, 7, 8 to get deleted.

Please advice.
Thanks

Answer 1

我先对以下法典进行了测试,但我要做的是:

<?php
class Comment extends AppModel {
    public function afterDelete() {
        $this->deleteChildren($this->id);
    }

    private function deleteChildren($parentId) {
        $children = $this->findByParentId($parentId);
        if (!empty($children)) {
            foreach ($children as $child) {
                $this->deleteChildren($child[ Comment ][ id ]);
                $this->delete($child[ Comment ][ id ]);
            }
        }
    }
}
?>

Answer 2

Minor corrections in @greew s answer above and it worked like below for me:

public function afterDelete() {
     $this->__deleteChildren($this->id);
}

private function __deleteChildren($parentId) {
   $children = $this->findAllByParentId($parentId);
   if (!empty($children)) {
        foreach ($children as $child) {
           $this->delete($child[ Comment ][ id ]);
        }
    }
}

感谢许多贪 gr!

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