Question

我尝试从本机查询中使用querybuilder创建查询。

干净的SQL查询

SELECT p.param, c.value, a.action_date AS last_run FROM search_conditions c 
  RIGHT JOIN search_parameters p ON p.id = c.parameter_id
  LEFT JOIN (
    SELECT condition_id, MAX(action_date) AS action_date 
       FROM search_actions group by condition_id 
  ) a ON a.condition_id = c.id 
  WHERE p.param != \'status\' AND c.value IS NOT NULL

所以我想从search_action表中选择MAX()值。

SearchParameterRepository

public function getActionsConditionsWithMaxDateQB()
    {
        $q = $this->createQueryBuilder('p');
        $q->select('p.param', 'c.value')
            ->leftJoin('p.searchConditions', 'c')
            ->leftJoin('c.searchActions', 'a', Expr\Join::WITH, $q->expr()->max('a.actionDate') );

此抛出错误

[语法错误]行0，列-1：错误：预期=，<，<=，<>，>，> =，！=，以字符串结尾。

设置使用的字段名称

SearchAction
 - $condition (ManyToOne, SearchCondition)
 - $parameter (ManyToOne, SearchParameter)
 - $actionDate
SearchParameter
 - $param
SearchCondition
 - $value

问题

如何使用QueryBuilder构建该查询？

Symfony 4 Doctrine 2查询生成器

0 个答案: