Symfony2 form in modal is not handled
Thanks for posting your templates code, I'll take a closer look at it asap.One idea : I would try setting explicitly the form's action in manageResources.html.twigTry something like this (adapt with correct parameters) :
{{ form_start(form, {'action': path('sfi_teacher_manage_resource', { 'id': resource.id, 'action': user_action })}) }}