Symfony 2 - 如何在树枝上打印属性？

Question

It have two entity in PhotoBundle, one is Photo entity, another one is FileManaged entity. they have ONE-TO-ONE relation.

Hy\PhotoBundle\Entity\Photo:
type: entity
oneToOne:
    file_managed:
      targetEntity: FileManaged
      mappedBy: photo
      joinColumn:
        name: photo
        referencedColumnName: fid

Hy\PhotoBundle\Entity\FileManaged:
type: entity
oneToOne:
    photo:
      targetEntity: Photo
      joinColumn:
        name: fid
        referencedColumnName: photo

I want to print uri in photo's index.html.twig file, how to print it?

My Code is:

{% for entity in pagination %}
{{ entity.title }} <!--Ok-->
{{ entity.file_managed.uri }} <!--Error-->{% endfor %}

and it show an error message:

Method "file_managed" for object "Hy\PhotoBundle\Entity\Photo" does not exist in HyPhotoBundle:Photo:index.html.twig at line 25

What I'm doing wrong?

the pic is using ladybug dump:

{{ entity|ladybug_dump }}

http://i.stack.imgur.com/kxu8X.png

Answer 1

Your PhotoBundle\Entity\Photo entity should look like this. Note it is not fully fleshed out, just the relevant methods.

class Photo{

   protected $id;

   protected $file_managed;

   public function setFileManaged($file)
   {

       $this->file_managed = $file;

       return $this;

   }

   public function getFileManaged()
   {

       return $this->file_managed;

   }

}

With this you should be able to access entity.fileManaged.url or whatever you defined in your entity inside your twig templates.