How to remove category from sonata_type_model_list at url @admin_sonata_media_media_create

问题

I'm using Media in User Entity(avatar).

At first I used sonata_media_type. It worked good.

The problem is I'm using ManyToOne - so the admin can select one from the list. To achieve this I have to use sonata_type_model_list - this has list,new,delete actions. I removed delete by 'btn_delete' => ''. Here the list action works good(up to now).

The real PROBLEM is at new action. The new action window load from ajax - and it has File/Reference, Category (Two fields).

Here I need to remove Category field entirely(list,new,delete). Why do we need this? Because it is useless!.

LIST - only display the 'context' => 'profile' from 'link_parameters'. So here the LIST action is useless.
NEW - New action can create new context, but it will not display in the LIST(right now). So I don't need this. If I need I'll create from ClassificationBundle.
DELETE - Delete action has no effect(right now - here).

MY-RESEARCH:

I tried to modify the TEMPLATE - but I can't find the correct twig file. It points to parent() - which is pointing to admin bundle!

To validation File/Reference - I created my own ImageProvider(as per doc) - It works(validate) good.

I tried to remove Category field(check image) - but failed.

My code is:

    class ImageProvider extends BaseProvider{...}
        public function buildCreateForm(FormMapper $formMapper) {
// This works - changed File/Reference to ok
            $formMapper->add('binaryContent', 'file', array('label' => 'ok',
                'constraints' => array(
                    new NotBlank(),
                ),
            ));
// This works - added a new text field
            $formMapper->add('context', 'text', ['attr' => ['class' => 'fz_rocks']]);
// This not working - also ->add('category') - has no effect even when attr=hide and so on..
            $formMapper->remove('category');
        }

回答1:

To remove category field from media popup

You need to override media admin's class by overriding class parameter sonata.media.admin.media.class
Create you own admin class and extend it with sonata media's base admin class.
Override configureFormFields() method by defining in your admin class
Remove category field from $formMapper

Override Sonata media class

parameters:
    sonata.media.admin.media.class: Your\MediaBundle\Admin\ORM\MediaAdmin

Media Admin Class

namespace Your\MediaBundle\Admin\ORM;

use Sonata\MediaBundle\Admin\ORM\MediaAdmin as Admin;
// .. Other use statements 

class MediaAdmin extends Admin {

    /**
     * {@inheritdoc}
     */
    protected function configureFormFields( FormMapper $formMapper ) {
        $media = $this->getSubject();

        if ( ! $media ) {
            $media = $this->getNewInstance();
        }

        if ( ! $media || ! $media->getProviderName() ) {
            return;
        }

        $formMapper->add( 'providerName', 'hidden' );

        $formMapper->getFormBuilder()->addModelTransformer( new ProviderDataTransformer( $this->pool, $this->getClass() ), true );

        $provider = $this->pool->getProvider( $media->getProviderName() );

        if ( $media->getId() ) {
            $provider->buildEditForm( $formMapper );
        } else {
            $provider->buildCreateForm( $formMapper );
        }

    }

}

回答2:

I solved by hiding the categoy field. If i removed completely it cause problem sometimes. Safe is to hide.

To achieve this i use custom providers, as per sonata-media doc creating_a_provider_class.rst

namespace Application\Sonata\MediaBundle\Provider;
class ImageProvider extends BaseProvider {
    public function buildCreateForm(FormMapper $formMapper) {
        $formMapper->add('binaryContent', 'file', ['label' => 'Upload a new file', 'constraints' => [new NotBlank(), new NotNull()]])->end();
        $formMapper->with('General', ['class' => 'hidden'])->add('category');
    }
    public function buildEditForm(FormMapper $formMapper) {
        parent::buildEditForm($formMapper);
        $formMapper->add('binaryContent', 'file', ['label' => 'Upload a new file', 'required' => FALSE])->end();
        $formMapper->with('General', ['class' => 'hidden'])->add('category');
    }
}

来源：https://stackoverflow.com/questions/38308774/how-to-remove-category-from-sonata-type-model-list-at-url-admin-sonata-media-me

标签

symfony

sonata-media-bundle