CODEWITHSUNDEEP
ruby-on-railsruby-on-rails-3ruby-on-rails-3.2
John
John

Reputation: 4372

Pass a parameter into collection select method for text_method

  <%= collection_select(:catgory, :id, @categories, :id, :title, {}, data: { behavior: 'category_dropdown' }) %>

In the above code I need to pass a parameter to the title method. Is there any way to do this with collection_select?

  <%= collection_select(:catgory, :id, @categories, :id, (:title, @program), {}, data: { behavior: 'category_dropdown' }) %>

Edit: Looking at the internals for collection_select the text_method. It is eventually passed to a .send method which should allow for element.send(:title, @program). However, I think the issue why I still can't pass the param is that collection select is reading (:title, @program) as two params instead of one.

Upvotes: 3

Views: 1863

Answers (2)

Sam
Sam

Reputation: 1253

This can be done with collection_select if your model has an existing parameter you can overwrite:

f.collection_select( :your_model_id, 
  YourModel.all.map{|ym| ym.name = ym.custom_name(your_parameter); ym}, 
  :id, :name, 
  {:selected => @model_instance.logic}, 
  {:class => 'your class', :other => "..." } )

For instance I do this to conditionally pluralize my model's name attribute

class MyModel < ActiveRecord::Base
  DEFAULT_NAME_COUNT = 99

  def pluralized_name(n = DEFAULT_NAME_COUNT)
    begin
      return name.pluralize(n)
    rescue
    end

    name
  end
end

Upvotes: 0

Anthony Alberto
Anthony Alberto

Reputation: 10395

Use select instead:

select "catgory", "id", @categories.map{|c| [c.title(@program), c.id]}, {}, data: { behavior: 'category_dropdown' }

Should be working.

Upvotes: 2

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