Question

I am working on a webapp that has three entities: User, Project, and Todo.

Every Todo has a many-to-one relationship with Projects.
Todos also have a many-to-many relationship to Users.

What I am trying to do is retrieve projects that contain a todo that has been assigned to a given user.

My code is as follows. $id has been set to the user_id I want to retrieve projects for

$em = $this->getDoctrine()->getEntityManager();
$projects = $em->createQuery("SELECT p FROM projects p INNER JOIN p.todos t WITH t.assigned_to = :id")
    ->setParameter('id', $id)
    ->getResult();

Whenever I run this query I get the following error:

[Semantical Error] line 0, col 79 near ‘assigned_to =’: Error: Invalid
PathExpression. StateFieldPathExpression or
SingleValuedAssociationField expected.

Any thoughts on what I am doing wrong? Thanks.

Answer 1

Updated:

As the assigned_to relation is a many to many relation pointed out in the comments there is no actual field assigned_to for the comparision.

You have to join the association:

SELECT p 
FROM projects p 
INNER JOIN p.todos t 
INNER JOIN t.assigned_to a
WHERE a.id = :id

I am using the WHERE condition as thats what I am accustomed to, as I learned from you WITH is also supported and might work, too 😉