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I am trying to relate SonataMediaBundle to another Entity: Products with a relation ManyToMany. The schema and relation are well created. However, when I edit or create a new product, I try to add a button where I can search a media file through the media library and a button to upload a new file. For a relation OneToMany, this is easily done in Admin\ProductAdmin::configureFormFields by adding: ->add('image', 'sonata_type_model_list', array( 'required' => false ), array( 'link_parameters' => array( 'context' => 'default', 'provider' => 'sonata.media.provider.image' ) )) So I get the same 3 icons as they already been used in the Gallery of SonataMediaBundle ( add from library , upload and delete ) BUT on the relation ManyToMany it isn't possible! Because every time I choose a media, it replaces the previous one. So I can't select multiple media types. I thought on using the same way as The Gallery ( galleryHasMedia ) ->add('galleryHasMedias', 'sonata_type_collection', array( 'by_reference' => false ), array( 'edit' => 'inline', 'inline' => 'table', 'sortable' => 'position', 'link_parameters' => array('context' => $context) )) However, it is really complex. How can I choose or upload multiple media files on another Entity through a ManyToMany Relation?

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