Why is EntityManager closed?

Why is EntityManager closed?

This is how I solved the Doctrine “The EntityManager is closed.” issue. Basically each time there’s an exception (i.e. duplicate key) or not providing data for a mandatory column will cause Doctrine to close the Entity Manager.

What is symfony doctrine?

Symfony provides all the tools you need to use databases in your applications thanks to Doctrine, the best set of PHP libraries to work with databases. These tools support relational databases like MySQL and PostgreSQL and also NoSQL databases like MongoDB.

How do you find the doctrine of an object?

If you want to get a single entity result, use either getSingleResult or getOneOrNullResult : $repository ->createQueryBuilder(‘p’) ->getQuery() ->getOneOrNullResult() ; Warning: These method can potentially throw NonUniqueResultException . you can get an object instead of array by using “Partial Objects”.

How do I delete an entity doctrine?

Removing entities. An entity can be removed from persistent storage by passing it to the EntityManager#remove($entity) method.

What is Entity Manager doctrine?

Doctrine’s public interface is through the EntityManager . This class provides access points to the complete lifecycle management for your entities, and transforms entities from and back to persistence. You have to configure and create it to use your entities with Doctrine ORM.

What is EntityManager Factory?

EntityManagerFactory provides instances of EntityManager for connecting to same database. JPA EntityManager is used to access a database in a particular application. It is used to manage persistent entity instances, to find entities by their primary key identity, and to query over all entities.

When the EntityManager is closed the state of the entity object is removed?

Detached. The last state, Detached, represents entity objects that have been disconnected from the EntityManager. For instance, all the managed objects of an EntityManager become detached when the EntityManager is closed. Working with detached objects, including merging them back to an EntityManager.

Is it possible to use in () queries with findby in doctrine?

As far as I know this is not a supported feature by Doctrine to use IN () queries with findby. You could do two things: Implement a findByStatus (array $statusTypes) method in your (custom) ‘notif’ repository class. If you like this approach I can give you a example. Show activity on this post.

What is the difference between findby () and findoneby ()?

findBy () – finds all documents matching the given criteria. Additional query options may be specified (e.g. sort, limit, skip). findOneBy () – finds one document matching the given criteria. matching () – Finds all documents matching the given criteria, as expressed with Doctrine’s Criteria API.

Is it possible to use criteria in a findby query?

Show activity on this post. and that should work too. Show activity on this post. I know that this is old question. Anyways, it’s possible to use Criteria for the complex queries (in Doctrine 2 at least): Show activity on this post. As far as I know this is not a supported feature by Doctrine to use IN () queries with findby.

What is a repository in doctrine?

A repository mediates between the domain and data mapping layers using a collection-like interface for accessing domain objects. In Doctrine, a repository is a class that concentrates code responsible for querying and filtering your documents.