Embedding a collection of forms Symfony2 forms with adding and deleting allowed

Question

In Symfony2, if I embed a collection of forms pointing at a many to one relationship in Doctrine and allow adding and deletion, if I delete a record from the beginning, add one

Answer 1

If you want to index the collection (by the entity id) for all querys, you can simply use the indexBy annotation in your entity class.

/**
 * @ORM\OneToMany(targetEntity="EntityClass", mappedBy="EntityVariable", indexBy="id")
 */
private $collection;