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.

Embed the comment

The comment may be embedded into the entity:

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.

$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:

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

{{ activity.comment|chill_entity_render_box }}