CakePHP recursive delete

There are posts and comments table.

For one post th开发者_开发百科ere are multiple comments.

If i delete one post will the comments for that post be automatically deleted in cakephp ?

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var $hasMany = array(
  'Comment' => array(
     'className' => 'Comment',
     'foreignKey' => 'post_id',
     'dependent'=> true
   )
); 

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This really shouldn't be up to CakePHP... let your database handle that by using FOREIGN KEY constraints and set it to ON DELETE CASCADE

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If you are using the foreign key Constraint ON DELETE CASCADE, yes.

See here for documentation (works with engine InnoDB)