Question

1) I have a method

def self.createobj(api_key, amnt, commentstr, orderid, order_creation_date, orderfullfilmentdate)  
.....
end

2) I want to create a error_str of all the parameters passed to this function …

2.1) Something like

errorstr = "api_key: " + api_key.to_s + " amnt: " + amnt.to_s + " commentstr: " + commentstr.to_s + " orderid: " + orderid.to_s + " order_creation_date: " + order_creation_date.to_s + " orderfullfilmentdate: " + orderfullfilmentdate.to_s

2.2) So I created another method

def self.get_params_str(a)
    str = ""
    a.each do |a|
      str = str + a.to_s
    end
    return str
end  

2.3) So I call this new method from createobj. Something like

def self.createobj(api_key, amnt, commentstr, orderid, order_creation_date, orderfullfilmentdate)  
errorstr = get_params_str(args)
.....
end

3) But I get error undefined local variable or method `args’ for #. Shouldn’t args have all parameters?

Please advice.

Answer 1

args would only contain the parameters if your method definition was something like def self.createobj(*args). Without that args isn’t defined.

You will need to manually pass all of the parameters to get_params_str. You will need to pass them as an array, i.e get_params_str([api_key, amnt, commentstr, ...]) unless you change get_params_str‘s method signature to def self.get_params_str(*a) (which puts all of the parameters passed to get_params_str into a single array`).