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How to define an n-m relation in doctrine?


How to define an n-m relation in doctrine?

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How to define an n-m relation in doctrine?
Tag : php , By : akr
Date : January 10 2021, 01:49 PM


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Doctrine: Define many-to-many relation inline in fixture


Tag : development , By : Pierre LeBoo
Date : March 29 2020, 07:55 AM
Hope this helps If you are also defining the groups in that fixture, you can reference them by name:
sfGuardGroup:
  GroupAdmin:  ...
  GroupEditor:  ...

sfGuardUser:
  ...
  Groups: [GroupEditor]
sfGuardUser:
  foo:
    first_name:     Foo
    last_name:      Bar
    ...
    sfGuardUserGroup: [{group_id: 2}]
relations:
  Groups:
    ...
    refClass: sfGuardUserGroup

One to Many Relation In Doctrine


Tag : php , By : thatotherguy
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further This is a common case and i think you can easily find such examples if you would have searched.
You may refer this example
/**
 * @ORM\Entity
 * @ORM\Table(name="users")
 */
class User
{
    /**
     * @ORM\Id
     * @ORM\Column(type="integer")
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    protected $id;

    /**
     * @ORM\Column(type="string")
     */
    protected $username;

    /**
     * @ORM\OneToMany(targetEntity="Message", mappedBy="user")
     */
    protected $messages;
}
    /**
     * @ORM\Entity
     * @ORM\Table(name="messages")
     */
    class Message
    {
        /**
         * @ORM\Id
         * @ORM\Column(type="integer")
         * @ORM\GeneratedValue(strategy="AUTO")
         */
        protected $id;

        /**
         * @ORM\Column(type="string")
         */
        protected $messageDescription;

        /**
         * @ORM\ManyToOne(targetEntity="User", inversedBy="messages")
         * @ORM\JoinColumn(name="fk_user_id", referencedColumnName="id")
         */
        protected $user;
}

Select count() in Doctrine DQL with left join manyToMany unidirectional relation where user does NOT have relation speci


Tag : sql , By : Ben Kohn
Date : March 29 2020, 07:55 AM
To fix the issue you can do Situaction: I am trying to select count() in DQL for users NOT in specific group. , The only way I managed to do it in DQL is use subquery:
SELECT COUNT(u)
FROM RAZUserBundle:User u
WHERE u.id NOT IN (
    SELECT u2.id
    FROM RAZUserBundle:User u2
    JOIN u2.groups g WITH g.id = 70
)

Is it possible define one-to-many relation in Sql Server and just define and use one side of this relation in entity cod


Tag : entity-framework , By : Diego
Date : March 29 2020, 07:55 AM
wish helps you If I defined one-to-many relation foreign-key constraints in Sql Server, Is it possible just define and use it in code-first class definitions in one side? For example suppose I have Library and Book classes. Each Library can has many books but each book belong to one library. , Sure, you can do this:
modelBuilder.Entity<Book>()
            .HasRequired(b => b.Library) // Or: HasOptional
            .WithMany()
            .Map(m => m.MapKey("LibraryId"))
modelBuilder.Entity<Book>()
            .HasRequired(b => b.Library)
            .WithMany()
            .HasForeignKey(b => b.LibraryId))

One to one relation doctrine


Tag : php , By : user134570
Date : March 29 2020, 07:55 AM
this will help I am unable to get my entities to work with a one to one relationship. , I managed to fix it by doing this
 $this->entityManager->persist($user);
            $this->entityManager->flush();
            $this->entityManager->persist($userAccount);
            $this->entityManager->flush();
   $this->entityManager->persist($user);
            $this->entityManager->persist($userAccount);
            $this->entityManager->flush(); 
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