I am having two entities A and B. Let's say entity A has a primary key 'foo' and the entity B has a variable named 'bar'. I am trying to establish the "Many to one" association between these two. And when i run "update schema" command on my terminal, it is giving me this result:
"Nothing to update - your database is already in sync with the current
entity metadata."
here's the code:
class A
{
/**
* #var int
* #ORM\Column(name="foo", type="integer")
* #ORM\Id
* #ORM\GeneratedValue(strategy="AUTO")
* #ORM\ManyToOne(targetEntity="B", inversedBy="bar")
*/
private $foo;
}
and
class B
{
/**
* #var int
* #ORM\Column(name="bar", type="integer")
* #ORM\OneToMany(targetEntity="A", mappedBy="foo")
*/
private $bar;
}
I think the * #ORM\Entity is missing
Related
There are entities Endpoint, EndpointServerConfig, and Server:
/**
* Server
*
* #ORM\Table(
* name="server",
* indexes={
* #ORM\Index(name="fk_server_server_type_idx", columns={"server_type_id"}),
* #ORM\Index(name="fk_server_cluster_idx", columns={"cluster_id"})
* }
* )
* #ORM\Entity
*/
class Server
{
/**
* #var string
*
* #ORM\Column(name="name", type="string", length=32, nullable=false)
* #ORM\Id
* #ORM\GeneratedValue(strategy="NONE")
*
* #Groups({"export"})
*/
protected $name;
/**
* #var EndpointServerConfig[]
*/
protected $endpointServerConfigs;
}
/**
* EndpointServerConfig
*
* #ORM\Table(name="endpoint_server_config", indexes={
* #ORM\Index(name="fk_endpoint_server_config_server_idx", columns={"server_name"})}
* )
* #ORM\Entity
*/
class EndpointServerConfig
{
/**
* #var integer
*
* #ORM\Column(name="id", type="integer", nullable=false)
* #ORM\Id
* #ORM\GeneratedValue(strategy="IDENTITY")
*/
protected $id;
/**
* #var Server
*
* #ORM\ManyToOne(targetEntity="Server")
* #ORM\JoinColumns({
* #ORM\JoinColumn(name="server_name", referencedColumnName="name")
* })
*
* #Groups({"export"})
*/
protected $server;
/**
* #var Endpoint
*
* #ORM\OneToOne(targetEntity="Endpoint", mappedBy="endpointServerConfig")
*/
protected $endpoint;
}
/**
* Endpoint
*
* #ORM\Table(
* name="endpoint",
* indexes={
* ...
* #ORM\Index(name="fk_endpoint_endpoint_server_config_idx", columns={"endpoint_server_config_id"}),
* ...
* }
* )
* #ORM\Entity
* ...
*/
class Endpoint
{
/**
* #var integer
*
* #ORM\Column(name="id", type="integer", nullable=false)
* #ORM\Id
* #ORM\GeneratedValue(strategy="IDENTITY")
*/
protected $id;
}
Now I want to update an entity (e.g. Foo), that contains an Endpoint. Among other changes I want to remove the reference to the Server from the Endpoint's EndpointServerConfig. That means for the database: The endpoint_server_config.server needs to be set to NULL.
I load the Foo to a Zend\Form, disable the server and submit the changes. On the server side I unset the EndpointServerConfig#server over Foo:
/** #var Foo $myFoo */
if(! $myFoo->getEndpoint()->getEndpointServerConfig()->getServer() || ! $myFoo->getEndpoint()->getEndpointServerConfig()->getServer()->getName()) {
$myFoo->getEndpoint()->getEndpointServerConfig()->setServer(null);
}
$this->entityManager->persist($myFoo);
$this->entityManager->flush($myFoo);
It leads to an error:
An exception occurred while executing 'UPDATE server SET name = ? WHERE name = ?' with params ["", "someservername"]:
SQLSTATE[23000]: Integrity constraint violation: 1451 Cannot delete or update a parent row: a foreign key constraint fails (`mydb`.`endpoint_server_config`, CONSTRAINT `fk_endpoint_server_config_server` FOREIGN KEY (`server_name`) REFERENCES `server` (`name`) ON DELETE NO ACTION ON UPDATE NO ACTION)
That means, Doctrine tries to UPDATE the Server, instead of just to remove the reference to it from the EndpointServerConfig. But why?
Only when I manually set endpoint_server_config.server_name to NULL (directly in the database), I can save the changes via form and Doctrine.
How to get it working?
EDIT
Just noticed, that I get the same problem on every update of the EndpointServerConfig. So not only on setServer(null), bu also when I try to set a new Server. In this case the attempts leads to the error:
An exception occurred while executing 'UPDATE server SET name = ? WHERE name = ?' with params ["newservername", "someservername"]:
SQLSTATE[23000]: Integrity constraint violation: 1451 Cannot delete or update a parent row: a foreign key constraint fails (`mydb`.`endpoint_server_config`, CONSTRAINT `fk_endpoint_server_config_server` FOREIGN KEY (`server_name`) REFERENCES `server` (`name`) ON DELETE NO ACTION ON UPDATE NO ACTION)
Add following:-
cascade={"persist", "remove"}
on your relation.
#ORM\ManyToOne(targetEntity="Server", cascade={"persist", "remove"})
is here some doctrine expert, who can explain me, why these DQLs will not initialize tallyRevs field on Tally entity? I supposed, that when I fetch TallyRevs (owner side) and fetchJoin Tally entity to them, that field tallyRevs will be initialized. What am I doing wrong? I need to select TallyRev based on some criteria via DQL and since it is a bi-directional association, I would like it to be initialized from the other (Tally.tallyRevs) side also.
Screen of dump
<?php
/**
* #ORM\Entity
* #ORM\Table(name="v3_overview_calloff_tally")
*/
class Tally
{
/**
* #var int
* #ORM\Id
* #ORM\Column(type="integer")
* #ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* #var TallyRev[]|Collection
* #ORM\OneToMany(targetEntity="STI\Model\Entity\V3\Overview\CallOff\TallyRev", mappedBy="tally")
*/
private $tallyRevs;
}
/**
* #ORM\Entity
* #ORM\Table(name="v3_overview_calloff_tallyrev")
*/
class TallyRev
{
/**
* #var int
* #ORM\Id
* #ORM\Column(type="integer")
* #ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* #var int
* #ORM\Column(type="integer", nullable=false)
*/
private $revision;
/**
* #var Tally
* #ORM\ManyToOne(targetEntity="STI\Model\Entity\V3\Overview\CallOff\Tally", inversedBy="tallyRevs")
* #ORM\JoinColumn(name="tally_id", referencedColumnName="id", nullable=false)
*/
private $tally;
}
Here is some repository code:
$qb = $repository->createQueryBuilder();
$qb
->select('tallyRev')
->from(TallyRev::class, 'tallyRev', 'tallyRev.id')
// complicated filtering, this is just an example
->andWhere($qb->expr()->in('tallyRev.revision', ':rev'))
->setParameter('rev', $rev)
;
$tallyRevs = $qb->getQuery()->getResult();
$ids = array_keys($tallyRevs);
$qb2 = $repository->createQueryBuilder();
$qb2
->select('partial tallyRev.{id}')
->from(TallyRev::class, 'tallyRev', 'tallyRev.id')
->andWhere($qb2->expr()->in('tallyRev.id', ':ids'))
->setParameter('ids', $ids)
->leftJoin('tallyRev.tally', 'tally')
->addSelect('tally')
;
$qb2->getQuery()->getResult();
I know, that I can write DQL from the Tally side like this:
$qb
->select('tally')
->from(Tally::class, 'tally', 'tally.id')
->leftJoin('tally.tallyRev', 'tallyRev')
->addSelect('tallyRev')
->andWhere($qb->expr()->in('tallyRev.revision', ':rev'))
->setParameter('rev', $revs)
;
If you want to fetch join tally when you fetch tallyRev you should write something like this in the first qb, and delete qb2
->select(['tallyRev', 'tally'])
->from(TallyRev::class, 'tallyRev', 'tallyRev.id')
->join('tallyRev.tally', 'tally')
// complicated filtering, this is just an example
->andWhere($qb->expr()->in('tallyRev.revision', ':rev'))
->setParameter('rev', $rev)
;
The data model:
The entities:
Pet:
/**
* #ORM\Entity
* #ORM\Table(name="pet")
* #ORM\InheritanceType("JOINED")
* #ORM\DiscriminatorColumn(name="pet_type", type="string")
*/
abstract class Pet
{
/**
* #ORM\Id
* #ORM\Column(type="integer")
*/
protected $id;
/**
* #ORM\OneToMany(
* targetEntity="Collar",
* mappedBy="pet",
* cascade={"persist", "remove"},
* orphanRemoval=TRUE
* )
* #ORM\JoinColumn(name="collars", referencedColumnName="id")
*/
protected $collars;
/**
* #ORM\Column(type="integer")
*/
protected $age;
}
Cat:
/**
* #ORM\Entity
* #ORM\Table(name="cat")
*/
class Cat extends Pet
{
/**
* #ORM\Column(type="decimal")
*/
private $purringDecibels;
}
Collar:
/**
* #ORM\Entity
* #ORM\Table(name="collar")
*/
class Collar
{
/**
* #ORM\Id
* #ORM\Column(name="id", type="integer")
*/
private $id;
/**
* #ORM\ManyToOne(targetEntity="Pet", inversedBy="collars")
* #ORM\JoinColumn(name="pet", referencedColumnName="id", nullable=false)
*/
private $pet;
/**
* #ORM\Column(type="string", length="255")
*/
private $color;
}
The problem:
The generated tables are fine except pet: It lacks the collars column, therefore the bidirectionality is broken. While the pet ids do get stored on the collar table, I cannot fetch collars from a pet (i.e. $pet->getCollars()) as it always returns an empty collection.
What am I missing out here?
PS:
The validate console helper says all (mapping & db) is OK.
Yes, I have my getters and setters (i.e. adders and removers)
I know about the infamous performance impact of the combination between a CTI and this kind of relationship.
You do not need to have a "collars" column on the pet table. It is a one-to-many relationship, so the only table that need to "know" about pets are the collar table.
A bidirectional relationship does not mean you need two columns on two tables.
Your map seems correct.
So I have 3 entities with their properties.
A USER which has MANY USERSKILLS with each ONE having a single corresponding SKILL
Here are the entities:
/**
* #ORM\Table(name="skills")
* #ORM\Entity()
*/
class Skill
{
/**
* #ORM\Column(name="id", type="integer")
* #ORM\Id
* #ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* #ORM\Column(name="name", type="string", length=30, unique=true)
*/
private $name;
/**
* #ORM\Column(name="active", type="boolean")
* #var bool
*/
private $active = false;
/**
* #ORM\OneToMany(targetEntity="UserSkill", mappedBy="skill")
*/
private $userSkills;
}
/**
* #ORM\Table(name="user_skill")
* #ORM\Entity()
*/
class UserSkill
{
/**
* #ORM\Id
* #ORM\ManyToOne(targetEntity="User", inversedBy="skills")
* #var User
*/
private $user;
/**
* #ORM\Id
* #ORM\ManyToOne(targetEntity="Skill", inversedBy="userSkills")
* #var Skill
*/
private $skill;
/**
* #ORM\Column(type="integer")
* #var int
*/
private $level = 0;
}
/**
* StartupDriven\UserBundle\Entity\User
*
* #ORM\Table(name="users")
* #ORM\Entity(repositoryClass="StartupDriven\UserBundle\Entity\UserRepository")
*/
class User implements AdvancedUserInterface, \Serializable
{
/**
* #ORM\OneToMany(targetEntity="UserSkill", mappedBy="user")
* #var ArrayCollection
*/
private $skills;
}
They are created using 2 symfony form objects which works fantastically.
The problem is when I go to persist these objects in the controller.... I get an error
$form->handleRequest($request);
if ($form->isValid()) {
/**
* #var User $user
*/
$user = $form->getData();
/**
* #var UserSkill $userSkill
*/
foreach ($user->getSkills() as $userSkill) {
// No updating skills... Only new ones.
if (!$userSkill->getId()) {
// Check skill name match.
if ($matched_skill = $em->getRepository('StartupDrivenUserBundle:Skill')->findOneBy(array('name' => $userSkill->getName()))) {
$userSkill->setSkill($matched_skill);
}
else {
// No match. Create new generic skill.
$em->persist($userSkill->getSkill());
// THE ERROR HAPPENS ON THE FOLLOWING LINE!
$em->flush();
}
// Set the User
$userSkill->setUser($user);
// Persist the user skill.
$em->persist($userSkill);
$em->flush();
}
}
$em->persist($user);
$em->flush();
Error Message:
A new entity was found through the relationship 'StartupDriven\UserBundle\Entity\User#skills' that was not configured to cascade persist operations for entity: StartupDriven\UserBundle\Entity\UserSkill#0000000053e8628e00007f7f2fd56e1f. To solve this issue: Either explicitly call EntityManager#persist() on this unknown entity or configure cascade persist this association in the mapping for example #ManyToOne(..,cascade={"persist"}). If you cannot find out which entity causes the problem implement 'StartupDriven\UserBundle\Entity\UserSkill#__toString()' to get a clue.
I have tried every combination of persist & flush that I can think of. I have tried the cascade option above (which gives a different error that the "user id which is required by the primary key rules is not set")... I am completely lost. It seems like such a simple relationship... Where am I going wrong?
I am trying to set up a relationship as shown below.
Each car can have one review.
A car has a primary key on 2 columns.
Review is referenced back to the car via the composite primary key.
Simple, in theory.
class Car {
/**
* #ORM\Id
* #ORM\Column(type="string")
*/
private $make;
/**
* #ORM\Id
* #ORM\Column(type="string")
*/
private $model;
/**
*
* #ORM\OneToOne(targetEntity="Review", mappedBy="car", cascade={"persist"})
*/
private $review;
}
class Review {
/**
* #ORM\Id
* #ORM\OneToOne(targetEntity="Car", inversedBy="review")
*/
private $car;
/**
* #var #ORM\Column(type="text")
*/
private $text;
}
When I try to generate the schema, the following error pops up.
Column name id referenced for relation from \Entity\Review towards
\Entity\Car does not exist.
What am I doing wrong?
After extensive research, I can say that the above structure is not supported by Doctrine, unfortunately.