This works for me in Rails 3 <%= form_for ... do |form| %> <%= form.collection_select(:category_id, Category.all, :id, :category_type) %>
I am not super familiar with HAML, but I googled github haml collection_select and the code examples that I saw seem consistent with what I am offering.. collection_select prototype from http://api.rubyonrails.org/classes/ActionView/Helpers/FormOptionsHelper.html#method-i-collection_select: collection_select(object, method, collection, value_method, text_method, options = {}, html_options = {}) Returns <select> and <option> tags for the collection of existing return values of method for object's class. The value returned from calling method on the instance object will be selected. If calling method returns nil, no selection is made without including :prompt or :include_blank in the options hash. The :value_method and :text_method parameters are methods to be called on each member of collection. The return values are used as the value attribute and contents of each <option> tag, respectively. They can also be any object that responds to call, such as a proc, that will be called for each member of the collection to retrieve the value/text. Rewrite: = form_for ... do |form| = form.collection_select(nil, :category_id, Category.all, :id, :name, {:include_blank => true}, {:style => "width:300px"}) ## I think that you may omit nil as the object, maybe your object here is @package?? = form.collection_select(nil, :sub_category_id, @package.category.sub_categories.all, :id, :name, {:include_blank => false}, {:style => "width:300px"}) Hope this helps -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscr...@googlegroups.com. To post to this group, send email to rubyonrails-talk@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/3d821dd2-d91b-499d-a8f1-268dc6558716%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
