chill-bundles/docs/source/development/embeddable-comments.rst

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.. Copyright (C) 2016 Champs Libres Cooperative SCRLFS
Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.3
or any later version published by the Free Software Foundation;
with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
A copy of the license is included in the section entitled "GNU
Free Documentation License".
Embeddable comments
###################
Those embeddable comments is a comment with some metadata:
* the one who updated the comment (the comment itself, and not the whole entity);
* the date and time for the last update (again, the comment itself, and not the whole entity).
We make usage of `embeddables <https://www.doctrine-project.org/projects/doctrine-orm/en/2.8/tutorials/embeddables.html>`_.
Embed the comment
=================
The comment may be embedded into the entity:
.. code-block:: php
namespace Chill\ActivityBundle\Entity;
use Chill\MainBundle\Entity\Embeddable\CommentEmbeddable;
use Doctrine\ORM\Mapping as ORM;
/**
* Class Activity
*
* @ORM\Entity()
*/
class Activity
{
/**
* @var integer
*
* @ORM\Id
* @ORM\Column(name="id", type="integer")
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* @ORM\Embedded(class="Chill\MainBundle\Entity\Embeddable\CommentEmbeddable", columnPrefix="comment_")
*/
private $comment;
/**
* @return \Chill\MainBundle\Entity\Embeddalbe\CommentEmbeddable
*/
public function getComment()
{
return $this->comment;
}
/**
* @param \Chill\MainBundle\Entity\Embeddalbe\CommentEmbeddable $comment
*/
public function setComment($comment)
{
$this->comment = $comment;
}
}
Note on relation to :class:`User`
=================================
The embeddable proposed by Doctrine does not support relationship to other entities. The entity Comment is able to render a user's id, but not an User object.
.. code-block:: php
$activity->getComment()->getUserId(); // return user id of the last author
$activity->getComment()->getUser(); // does not work !
Usage into form
===============
Use the :class:`Chill\MainBundle\Form\Type\CommentType` to load the form widget:
.. code-block:: php
namespace Chill\ActivityBundle\Form;
use Chill\MainBundle\Form\Type\CommentType;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
class ActivityType extends AbstractType
{
/**
* @param FormBuilderInterface $builder
* @param array $options
*/
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('comment', CommentType::class, [
'required' => false,
])
;
}
}
Render the comment
==================
.. code-block:: twig
{{ activity.comment|chill_entity_render_box }}