ruby on rails - Add a form helper method -

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Ive made a nice editor in jQuery and I want to add it as a form auxiliary method

Ideally ID: 

  f.nice_editor: field     
 
 
 item  form_for  is generated for  ActionView :: Helpers :: FormBuilder . So all you have to do is to add examples of examples. 
  Ex:  Category ActionView :: Helpers :: Form Builder DF Custom_field (...) ... End End

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