3.2.2模型关联condition条件使用变量方法
先前使用关联模型的时候出现增加没有问题,但是 删除和修改 的时候出现了不同步的原因。
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说明:
$_link 内如果设置了条件的话就会出现以上问题。
我是只配置了 一对一 其他我没有测试哦。因为我只用到了一对一表。
解决办法如下
打开:TP/Library/Think/Model/RelationModel.class.php 文件
查找 一下代码: if(!empty($val['condition'])) {<br>
$mappingCondition = $val['condition'];<br>
}else{<br>
$mappingCondition = array();<br>
$mappingCondition[$mappingFk] = $pk;<br>
}
修改为: $mappingCondition = array();<br>
if(!empty($val['condition'])) {<br>
if(!empty($val['is_key'])){<br>
$mappingCondition = $this->get_condition($val['condition']);<br>
}else{<br>
$mappingCondition = $this->get_condition($val['condition']);<br>
$mappingCondition[$mappingFk] = $pk;<br>
}<br>
}else{<br>
$mappingCondition[$mappingFk] = $pk;<br>
}
在最后加入一个方法 /**<br>
* @param $condition 条件<br>
* @return array<br>
*/<br>
protected function get_condition($condition){<br>
$wherearr = explode('and',$condition);<br>
$mappingCondition = array();<br>
foreach($wherearr as $value){<br>
$value = trim($value);<br>
list($key,$v) = explode('=',$value);<br>
$key = trim($key);<br>
$v = str_replace('"','',str_replace('\'','',trim($v)));<br>
$mappingCondition[$key] = $v;<br>
}<br>
return $mappingCondition;<br>
}
由于增加了一个参数 is_key
需要 配置一下。
'is_key' => false在配置关联表的时候 condition 会自动带着 主表ID 作为条件。
'is_key' => true, 和 thinkPhp 默认的一样了,就会是你 配置的 condition 参数内作为条件。 //数据关联<br>
protected $_link=array(<br>
'Keyword'=>array(<br>
'mapping_type' => self::HAS_ONE,<br>
'class_name' =>'Common/Keyword',<br>
'foreign_key' => 'mod_id',<br>
'is_key' => false,<br>
'mapping_fields'=> 'keyword,mod_name,match_type',<br>
'condition' => 'mod_name = "TextReply"',<br>
'as_fields' => 'keyword,mod_name,match_type',<br>
)<br>
);
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