How to OrderBy on OneToMany/ManyToOne

Question

I have a Product class that has many fields on it for ManyToMany, such as ingredients, sizes, species, etc.. A total of about 14 different fields Not all of the fields are a

Answer 1

in the Product entity just also aadd the orderBy to the ingredients relation

/**
 * ...
 * @ORM\OrderBy({"some_attribute" = "ASC", "another_attribute" = "DESC"})
 */
private $ingredients;

Answer 2

You should use 'query_builder' option in your Form: http://symfony.com/doc/master/reference/forms/types/entity.html#query-builder The value of the option can be something like this:

function(EntityRepository $er) {
    return $er->createQueryBuilder('i')->orderBy('i.name');
}

Don't forget to add the "use" statement for EntityRepository

Answer 3

Well I came up with a hackish way.. Since I really only care about the sort on output, I have made a basic twig extension

use Doctrine\Common\Collections\Collection;

public function sort(Collection $objects, $name, $property = null)
{
    $values = $objects->getValues();
    usort($values, function ($a, $b) use ($name, $property) {
        $name = 'get' . $name;
        if ($property) {
            $property = 'get' . $property;
            return strcasecmp($a->$name()->$property(), $b->$name()->$property());
        } else {
            return strcasecmp($a->$name(), $b->$name());
        }
    });
    return $values;
}

I would like to avoid this hack though and still would like to know a real solution

Answer 4

If you use xml mapping, you could use

        <order-by>
            <order-by-field name="some_field" direction="ASC" />
        </order-by>

inside your <one-to-many> tag.