Sonataadminbundle: Looking for a real solution to INVALID MODE : sonata_type_collection - mapping

[ornj]

I have a ManyToMany association in my entity and I am trying to edit those entities inline. I am attempting to use sonata_type_collection to display the form,

->add('galleries', 'sonata_type_collection', array(), array(
    'edit'    => 'inline',
    'inline'  => 'table',
))

When I render the form, I see INVALID MODE : s5147816d591b7_galleries - type : sonata_type_collection - mapping : 8 instead of the form field.

I've seen similar issues such as #322 but the solution provided there, and every where else I've seen this referenced is a cop out. Instead of rendering the admin fields they are using the default Symfony form behavior as a close enough solution. I want to give users the ability to select existing entities or add new ones. According to the Doctrine2 ORM Admin documentation, the above should have worked.

[ornj]

For anyone else running into a similar issue, this blog post got me close.

[ibasaw]

too late, 404 error and need this feature ;)

[ornj]

Look at how it's done within SonataMediaBundle, https://github.com/sonata-project/SonataMediaBundle/blob/master/Model/GalleryHasMedia.php.

To be a little clearer, you need to create another Entity that manages the associations between your Entity and the Gallery entities.

[ibasaw]

thank you

[antoinefortin]

Still relevant six years later guys. If you would like to share a trick would be really appreciated.

[greg0ire]

You mean 3, right?

[vladkras]

I mean 4

[aglonietis]

I think you meant 5

[patrickmaynard]

I spent more than an hour on this in the morning, so I thought I would post what worked for me here, in case others are still encountering this pesky error. See the link below.

https://stackoverflow.com/questions/48823406/invalid-mode-s5a869f19a6c57-equivalents-type-sonata-type-collection-mapp/48827920#48827920