Cakephp将值保存到数据库中

我有一个Movies表和一个Rating表。评级表belongsTo电影和电影hasOne评级。我想增加“vote_count”字段。代码如下。Cakephp将值保存到数据库中

public function set_ratings($movieId, $value){ 
    $this->Movie->id = $movieId; 
    $rateMovie = $this->Movie->read(); 
    $oldNoOfVotes = $rateMovie['Rating']['number_of_votes']; 
    debug($oldNoOfVotes); 
    $newNoOfVotes = ++$oldNoOfVotes; 
    $newVoteCount = $rateMovie['Rating']['vote_count'] + $value; 
    $newAverageRating = $newVoteCount/$newNoOfVotes; 
    debug($oldNoOfVotes); 
    debug($newNoOfVotes); 
    $this->request->data['Rating']['id'] = $rateMovie['Rating']['id']; 
    $this->request->data['Rating']['number_of_votes'] = $newNoOfVotes; 
    $this->request->data['Rating']['vote_count'] = $newVoteCount; 
    $this->request->data['Rating']['average_rating'] = $newAverageRating; 
    //$this->request->data['Rating']['id'] = $rateMovie['Rating']['id']; 
    debug($newNoOfVotes); 
    $this->Movie->Rating->save($this->request->data); 
    debug($newNoOfVotes); 
}

我面对的问题是，如果“vote_count”是说15，当我增加它和调试值是16，但它得到保存为18 DB是什么原因？

来源

2012-07-27 Vijay

您是否调试过（$ newVoteCount）...？ – 2012-07-27 11:18:20

是否确定不要调用该函数两次或更多？或者，也许数据库引擎增加它（像ON UPDATE增量SQL语句）？

来源

2012-07-27 11:35:25 Opi

Cakephp将值保存到数据库中

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