Sonata admin - “order by” field in related table

Question

I have a Product admin class. The Product entity has a many-to-one relationship with a Category entity, i.e. a product is associated with a category.

In the admin \"list

Answer 1

It seems a workaround, but it works. You have to add a join overriding createQuery() method, than assign a default sortBy overriding $datagridValues:

 1,
        '_sort_order' => 'ASC', // sort direction
        '_sort_by' => 'c.name' // field name
    );

    /**
     * @return \Sonata\AdminBundle\Datagrid\ProxyQueryInterface
     */
    public function createQuery($context = 'list')
    {
        $query = parent::createQuery($context);

        return new ProxyQuery($query
            ->join(sprintf('%s.category', $query->getRootAlias()), 'c'));
    }
}