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ruby-on-railsformtastic

f.association with WHERE clause for collection in Rails

In my form I have a f.association field:

<%= f.association :groups, as: :check_boxes %>

Now, I get a list of check boxes with all groups that are in my database. I would like to show only some of the groups using a where filter.

<%= f.association :groups,  Group.where(type: 'products'), as: :check_boxes %>

But this does not work.

How can I do this?

Solution

  • Formtastic should allow you to define the collection with the :collection key.

    <%= f.association :groups, as: :check_boxes, collection: Group.where(type: 'products') %>

    More examples can be found in their codebase here