Yii 使用条件搜索并添加参数

Question

我有一个表格，我想在我的数据库中搜索。我用所有参数创建对象，但我有一个问题。当在一个文本字段中写入时，搜索工作正常并且查询运行正确。当编写两个或多个文本字段参数不起作用并且我执行查询失败时：

在哪里 ((((id_reservation=:id_reservation) AND (start=:start)) AND (end=:end)) AND (fkCustomer.first_name=:first_name))

参数不会替换。

    $criteria=new CDbCriteria;
    $criteria->with =array('fkCustomer');
    if(!empty($start))
    {
        $criteria->addCondition('start=:start');
        $criteria->params=array(':start'=>$start);
    }
    if(!empty($end))
    {

        $criteria->addCondition('end=:end');
        $criteria->params=array(':end'=>$end);
    }
    if(!empty($merge->customer_name))
    {

        $criteria->addCondition('fkCustomer.first_name=:first_name');
        $criteria->params=array(':first_name'=>$merge->customer_name);
    }
    if(!empty($merge->customer_surname))
    {

        $criteria->addCondition('fkCustomer.last_name=:last_name');
        $criteria->params=array(':last_name'=>$merge->customer_surname);
    }
    if(!empty($merge->customer_email))
    {

        $criteria->addCondition('fkCustomer.email=:email');
        $criteria->params=array(':email'=>$merge->customer_email);
    }
    $criteria->limit = 100;

Answer 1

这是因为在每个 if 块中，您都替换了 params 数组。在if 块中构建一个数组，然后将其添加到块外最后一行的$criteria->params。

例如：

$criteria=new CDbCriteria;
$criteria->with =array('fkCustomer');
$my_params = array();

if(!empty($end))
{
    $criteria->addCondition('end=:end');
    $my_params['end'] = $end;
}

if(!empty($merge->customer_name))
{
    $criteria->addCondition('fkCustomer.first_name=:first_name');
    $my_params['first_name'] = $merge->customer_name;
}

// other ifs ..

//then
$criteria->limit = 100;
$criteria->params = $my_params;

另外，如果我没记错的话，你不需要在 params 数组中写 ':end' 和 ':first_name'，不用冒号也可以。

Answer 2

您还有以下选择

$criteria=new CDbCriteria;
$criteria->with = 'fkCustomer';

if(!empty($end))
{
    $criteria->compare('end', $end);
}

if(!empty($merge->customer_name))
{
    $criteria->compare('fkCustomer.first_name', $merge->customer_name);
}

// The following conditions ..

// Limit:
$criteria->limit = 100;

Answer 3

您好，我认为这与我之前在使用 params 变量时遇到的问题相同，为了避免这个问题，我使用了 CMap::mergeArray 函数

发生这种情况是因为每次条件通过变量时都会覆盖变量。

这是避免它的语法，它是一个例子

$criteria=new CDBCriteria;
$criteria->addBetweenCondition("Date",$datestart,$dateend);
$criteria->addCondition("Type=:type");
//$criteria->params=array(":type"=>"1"); //This is wrong, overwrites addBetweenCondition params
$criteria->params=CMap::mergeArray($criteria->params,array(
    ":type"=>"1",
)); //This is ok, mantain all parameters in the params var
$query=Model::findAll($criteria);

Answer 4

можно обратиться напрямую

 $criteria=new CDbCriteria;
    $criteria->with =array('fkCustomer');
    if(!empty($start))
    {
        $criteria->addCondition('start=:start');
        $criteria->params['start']=$start;
    }
    if(!empty($end))
    {

        $criteria->addCondition('end=:end');
        $criteria->params['end']=$end;
    }
    if(!empty($merge->customer_name))
    {

        $criteria->addCondition('fkCustomer.first_name=:first_name');
        $criteria->params['first_name']=$merge->customer_name;
    }
    if(!empty($merge->customer_surname))
    {

        $criteria->addCondition('fkCustomer.last_name=:last_name');
        $criteria->params['last_name']=$merge->customer_surname;
    }
    if(!empty($merge->customer_email))
    {

        $criteria->addCondition('fkCustomer.email=:email');
        $criteria->params['email']=$merge->customer_email;
    }
    $criteria->limit = 100;