Symfony学说QueryBuilder

Question

I try to convert this query to the querybuilder:

SELECT *, landingpages_content.id as cid FROM `landingpages_content` LEFT JOIN content ON landingpages_content.content_id = content.id WHERE content.enabled = 1 AND landingpages_content.landingpage_id = ? ORDER BY landingpages_content.`order`

This is my QueryBuilder code:

$queryBuilder
    ->select('*, landingpages_content.id as cid')
    ->from('landingpages_content', 'landingpages_content')
    ->leftJoin('landingpages_content.content_id', 'content.id', null)
    ->where('content.enabled = 1')
    ->andWhere('landingpages_content.landingpage_id = :id')
    ->setParameter('id', $id)
    ->orderBy('landingpages_content.`order`', 'ASC');

It returns

InvalidArgumentException: The query builder cannot have joins.

Answer 1

You are using leftJoin method wrong. Try something like this:

$queryBuilder
    ->select('*, landingpages_content.id as cid')
    ->from('landingpages_content', 'landingpages_content')
    ->leftJoin('landingpages_content.content', 'content', 'ON', 'landingpages_content.content_id = content.id')
    ->where('content.enabled = 1')
    ->andWhere('landingpages_content.landingpage_id = :id')
    ->setParameter('id', $id)
    ->orderBy('landingpages_content.order', 'ASC');