Add a form helper method

Ive made a nice editor in jQuery and i want to add it as a form helper method.

how would i go about making a new form helper method开发者_如何学JAVA?

ideally id like to be able to call:

f.nice_editor :field

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Part of the question is: where do you put the nice_editor code? I don't think it is a good idea to directly edit class ActionView::Helpers::FormBuilder in your installation. Instead, put your code in one of the files in app/helpers. There are several ways to add extension methods to FormBuilder.

For instance, suppose you have a helper file items_helper.rb:

module ItemsHelper
    # this is one way to define new instance methods
    ActionView::Helpers::FormBuilder.class_eval do
        def nice_editor(conf,*opts)
            ...
        end
    end
end

Also, see this good discussion, which shows how to use self.included() to extend FormBuilder.

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The object yielded to form_for is an instance of ActionView::Helpers::FormBuilder. So all you have to do is to add instance methods there.

class ActionView::Helpers::FormBuilder
  def custom_field(...)
    ...
  end
end

---

after some research i found that this works:

class ActionView::Helpers::FormBuilder
    def nice_editor(conf)
         #stuff to draw the editor
    end
end

"conf" would have all the symbol options passed to it from the view. it works fine with f.