yii2.0 elasticsearch模糊查询

　最近使用yii2.0查询es数据，一般查找语句用的yii2.0的query类，遇到模糊查询使用like的时候竟然报

like conditions are not supported by elasticsearch.

在QueryBuilder.php中查找到这个函数

private function buildLikeCondition($operator, $operands)
{
       throw new NotSupportedException('like conditions are not supported by elasticsearch.');
   
}
修改此函数为：

private function buildLikeCondition($operator, $operands)
{
    if (!isset($operands[0], $operands[1])) {
        throw new InvalidParamException("Operator '$operator' requires two operands.");
    }
    if($operator=="like"){
        return [
            'regexp' => [
                $operands[0]=>".*".$operands[1].".*",
            ],
        ];
    }else{
        throw new NotSupportedException('like conditions are not supported by elasticsearch.');
    }
}
解决了like模糊查询，用到了正则匹配语句。暂时解决了项目模糊查询的需要。用正则”regexp“应该还可以用wildcards查询，后者没用过，用过再补上