Currently, I have article and tag tables. I am trying to auto populate the "Tag" form element as a select box on the article form. What is the best way to go about setting the Value Options of the tags select box from a database table and then also have the article bind the tag data automatically during the "bind" method call?
Article.php
<?php
// Article class
class Article {
/**
*
* @var \Doctrine\Common\Collections\Collection|Tag[]
*
* @ORM\ManyToMany(targetEntity="Tag", inversedBy="articles")
* @Orm\JoinTable(name="rel_article_tag", joinColumns={@ORM\JoinColumn(name="article_id", referencedColumnName="article_id")}, inverseJoinColumns={@ORM\JoinColumn(name="tag_id", referencedColumnName="tag_id")})
*
* @Form\Required(false)
* @Form\Type("Zend\Form\Element\Select")
* @Form\Options({"label":"Tags: ")
* @Form\Attributes({"id":"tags", "data-placeholder":"Choose tags...", "multiple" : "multiple", "class" : "chosen-select"})
*/
private $tags;
public function __construct()
{
$this->tags = new ArrayCollection();
}
public function getTags()
{
return $this->tags;
}
public function addTags($tags)
{
$this->tags = $tags;
}
public function removeTags()
{
$this->tags = new ArrayCollection();
}
}
ArticleController.php
class ArticleController{
public function editAction()
{
$builder = new AnnotationBuilder();
$form = $builder->createForm(new TblArticle());
$id = 1;
$article = $em->find('Admin\Entity\TblArticle', $id);
$form->bind($article);
}
}
WHAT I'VE DONE
Within ArticleController::editAction()
, I've dynamically added the value options to the tags element on the form.
class ArticleController
{
public function editAction()
{
$builder = new AnnotationBuilder();
$form = $builder->createForm(new TblArticle());
// add tag options to form
$sm = $this->getServiceLocator();
$em = $sm->get('Doctrine\ORM\EntityManager');
$tags = $em->getRepository('Admin\Entity\LuTag')->findAll();
$tagOptions = [null => ''];
foreach ($tags as $tag) {
$tagOptions[$tag->getTagId()] = $tag->getName();
}
$form->get('tags')->setValueOptions($tagOptions);
// end add tag options to form
$id = 1;
$article = $em->find('Admin\Entity\TblArticle', $id);
$form->bind($article);
if ($article->getTags()) {
$tagIds = array();
foreach ($article->getTags() as $tag) {
$tagIds[] = $tag->getTagId();
}
$form->get('tags')->setValue($tagIds);
}
}
}
This seems like an excessive amount of code in my controller, I know it's not right, but I'm not sure how to better do this. Possibly using a FormBuilder that sets the value options for the Tag elements?
Thanks.
Check out this tutorial: https://samsonasik.wordpress.com/2014/05/22/zend-framework-2-using-doctrinemoduleformelementobjectselect-and-custom-repository/
Basically you need to specify a repository class in your Tag-Entities Entity Annotation like this:
@ORM\Entity(repositoryClass="Admin\Entity\LuTag")
Then you can use Doctrines DoctrineModule\Form\Element\ObjectSelect Type which will be able to provide the feature you requested:
Article.php (Note the @Form\Type Annotation and the additional @Form\Options entries)
...
/**
*
* @var \Doctrine\Common\Collections\Collection|Tag[]
*
* @ORM\ManyToMany(targetEntity="Tag", inversedBy="articles")
* @Orm\JoinTable(name="rel_article_tag", joinColumns={@ORM\JoinColumn(name="article_id", referencedColumnName="article_id")}, inverseJoinColumns={@ORM\JoinColumn(name="tag_id", referencedColumnName="tag_id")})
*
* @Form\Required(false)
* @Form\Type("DoctrineModule\Form\Element\ObjectSelect")*
* @Form\Options({"label":"Tags: ", "target_class": "Admin\Entity\LuTag", "property": "name"})
* @Form\Attributes({"id":"tags", "data-placeholder":"Choose tags...", "multiple" : "multiple", "class" : "chosen-select"})
*/
private $tags;
Also check out https://github.com/doctrine/DoctrineModule/blob/master/docs/form-element.md for more information about ObjectSelect
At last you will need to build your form using
DoctrineORMModule\Form\Annotation\AnnotationBuilder
instead of Zends AnnotationBuilder in order to resolve the object_manager dependencies.
/* using the service manager like this within a controller method is
bad practice. Inject the EntityManager using a Controller Factory! */
$sm = $this->getServiceLocator();
$em = $sm->get('Doctrine\ORM\EntityManager');
$builder = new DoctrineORMModule\Form\Annotation\AnnotationBuilder($em);
$form = $builder->createForm(TblArticle::class);
This should do the trick.
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