php - Symfony2 multiple select tags from one entity
250
Soo, the problem would be following:
I have entityGroup in relation with entityStudent (OneToMany).
Group1 has Student1 and Student2 Group2 has Student3 and Student4
Also I have entityClass which is the main one for form to render. Form should be parsed something like this:
<input type="text" name="class[name]"> <-- this one easy
Problem begins here: (I need to render dynamically so manyselect tags how many there is records inGroup entity withStudent entity records (related) in options)
<label>Group1</label>
<select name="class[group][0]"> <-- don't not exactly about `name` attr
<option value="1">Student 1</option>
<option value="2">Student 2</option>
</select>
<label>Group2</label>
<select name="class[group][student]"> <-- or something
<option value="3">Student 3</option>
<option value="4">Student 4</option>
</select>
And so on..
I've read about custom field types, but could find example how to do it. And have no idea where to begin searching.
Any help would be appreciated.
UPDATED
class ClassType extends AbstractType
{
/**
* @param FormBuilderInterface $builder
* @param array $options
*/
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('name')
;
}
/**
* @param OptionsResolverInterface $resolver
*/
public function configureOptions(OptionsResolver $resolver)
{
$resolver->setDefaults(array(
'data_class' => 'AppBundle\Entity\Class'
));
}
/**
* @return string
*/
public function getName()
{
return 'class';
}
}
GroupType
class GroupType extends AbstractType
{
/**
* @param FormBuilderInterface $builder
* @param array $options
*/
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('name')
;
}
/**
* @param OptionsResolverInterface $resolver
*/
public function configureOptions(OptionsResolver $resolver)
{
$resolver->setDefaults(array(
'data_class' => 'AppBundle\Entity\Group'
));
}
/**
* @return string
*/
public function getName()
{
return 'b';
}
}
StundentType
class StudentType extends AbstractType
{
/**
* @param FormBuilderInterface $builder
* @param array $options
*/
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('name')
->add('group')
;
}
/**
* @param OptionsResolverInterface $resolver
*/
public function configureOptions(OptionsResolver $resolver)
{
$resolver->setDefaults(array(
'data_class' => 'AppBundle\Entity\Student'
));
}
/**
* @return string
*/
public function getName()
{
return 'student';
}
}
Class entity
class Class
{
/**
* @var integer
*
* @ORM\Column(name="id", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* @var string
*
* @ORM\Column(name="name", type="string", length=255)
*/
private $name;
/**
* Get id
*
* @return integer
*/
public function getId()
{
return $this->id;
}
/**
* Set name
*
* @param string $name
* @return A
*/
public function setName($name)
{
$this->name = $name;
return $this;
}
/**
* Get name
*
* @return string
*/
public function getName()
{
return $this->name;
}
}
Group entity
class Group
{
/**
* @var integer
*
* @ORM\Column(name="id", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* @var string
*
* @ORM\Column(name="name", type="string", length=255)
*/
private $name;
/**
* @ORM\OneToMany(targetEntity="Student", mappedBy="group")
*/
private $students;
/**
* Get id
*
* @return integer
*/
public function getId()
{
return $this->id;
}
/**
* Set name
*
* @param string $name
* @return B
*/
public function setName($name)
{
$this->name = $name;
return $this;
}
/**
* Get name
*
* @return string
*/
public function getName()
{
return $this->name;
}
/**
* Constructor
*/
public function __construct()
{
$this->students = new \Doctrine\Common\Collections\ArrayCollection();
}
/**
* Add students
*
* @param \AppBundle\Entity\C $students
* @return B
*/
public function addStudent(\AppBundle\Entity\C $students)
{
$this->students[] = $students;
return $this;
}
/**
* Remove students
*
* @param \AppBundle\Entity\C $students
*/
public function removeStudent(\AppBundle\Entity\C $students)
{
$this->students->removeElement($students);
}
/**
* Get students
*
* @return \Doctrine\Common\Collections\Collection
*/
public function getStudents()
{
return $this->students;
}
}
Student entity
class Student
{
/**
* @var integer
*
* @ORM\Column(name="id", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* @var string
*
* @ORM\Column(name="name", type="string", length=255)
*/
private $name;
/**
* @ORM\ManyToOne(targetEntity="Group", inversedBy="students")
*/
private $group;
/**
* Get id
*
* @return integer
*/
public function getId()
{
return $this->id;
}
/**
* Set name
*
* @param string $name
* @return C
*/
public function setName($name)
{
$this->name = $name;
return $this;
}
/**
* Get name
*
* @return string
*/
public function getName()
{
return $this->name;
}
/**
* Set group
*
* @param \AppBundle\Entity\B $group
* @return C
*/
public function setGroup(\AppBundle\Entity\B $group = null)
{
$this->group = $group;
return $this;
}
/**
* Get group
*
* @return \AppBundle\Entity\B
*/
public function getGroup()
{
return $this->group;
}
}
Answer
Solution:
You need to use formType based on your entities
http://symfony.com/doc/current/reference/forms/types/form.html
Choice field for this purpose : http://symfony.com/doc/current/reference/forms/types/entity.html
In the Symfony console you can generate the formType with doctrine command :
Generate a formType with generate:doctrine:form and un CRUD controller with generate:doctrine:crud it's help you to see how to use formType :)
EDIT : lead to do the form : http://symfony.com/doc/current/cookbook/form/dynamic_form_modification.html#cookbook-form-events-user-data Using this example as base