docgen: improve listing for templates

src/Bundle/ChillDocGeneratorBundle/Entity/DocGeneratorTemplate.php

@@ -15,31 +15,35 @@ use Symfony\Component\Serializer\Annotation as Serializer;
 /**
  * @ORM\Entity
  * @ORM\Table(name="chill_docgen_template")
+ * @Serializer\DiscriminatorMap(typeProperty="type", mapping={
+ *     "docgen_template": DocGeneratorTemplate::class
+ * })
  */
 class DocGeneratorTemplate
 {
     /**
-     * @ORM\Column(type="string", length=255)
-     *
-     * Class name of the context to use
+     * Class name of the context to use.
      *
      * so if $context = ''
      * this template will use '' as context
+     *
+     * @ORM\Column(type="string", length=255)
      */
     private string $context;
 
     /**
      * @ORM\Column(type="text", nullable=true)
+     * @Serializer\Groups({"read"})
      */
     private string $description;
 
     /**
-     * @ORM\Column(type="simple_array")
-     *
-     * Class name of the entities for which this template can be used
+     * Class name of the entities for which this template can be used.
      *
      * so if $entities = ['Chill\PersonBundle\Entity\AccompanyingPeriod', 'Chill\PersonBundle\Entity\SocialWork\SocialAction']
      * this template can be selected for an AccompanyingPeriod or a SocialAction
+     *
+     * @ORM\Column(type="simple_array")
      */
     private array $entities = [];