def method_missing(meth)
			self.class.send :define_method, meth do
				string = meth.to_s.gsub("_"," ")
				self.for("for('#{string}')")
			end
			begin
				self.send(meth.to_s)
			rescue
				raise "Method does not exists (#{meth})."
			end
		end
def method_missing(meth)
			self.class.send :define_method, meth do
				string = meth.to_s.gsub("_"," ")
				self.for("for('#{string}')")
			end
			begin
				self.send(meth.to_s)
			rescue
				raise "Method does not exists (#{meth})."
			end
		end
Try to convert Missing methods to string and call to for method with converted string