ruby on rails - Calling method from subclass results in "no superclass method `sign_up_params' for ...". Why? -

background

i have subclassed devise::registrationscontroller handle user registrations myself class named deviseuserscontroller.

i need override create action - had used super performed additional things needed done, however, no longer satisfy requirements.

so checked out devise code on github , tried recreate few adjustments. however, have had problems starting first line...

the code

class deviseuserscontroller < devise::registrationscontroller   ...    def build_resource     super   end    def sign_up_params     super   end    def create     build_resource(sign_up_params)     ...   end  end 

the error

super: no superclass method `sign_up_params' #<deviseuserscontroller:0x007f8f2d09a538> 

the question

why error occurring? based on devise::registrationscontroller code evident method, not private, exists.

versions:

• rails 3.2.13
• ruby 1.9.3
• devise 2.2.3

edit changing code to:

class deviseuserscontroller < devise::registrationscontroller   ...    def create     build_resource(sign_up_params)     ...   end    protected    def build_resource     super   end    def sign_up_params     super   end  end 

still not work.

if watch carefully, you'll see protected before bunch of methods including sign_up_params.

well, have it's not significant, use local repo can find :)

in sub class, method sign_up_params public method. in fact there no such public method in parent class. error correct.

to solve, think can set method sign_in_params in subclass protected, though have not verified that.