ruby - Tableless model in rails with form_tag -

i have been having trouble tableless models in rails 3.x. i've looked @ bunch of questions here on stack overflow , while i've tried implement them haven't figured out yet. want form not submit unless 2 text field tags have been filled. doesn't have check if valid data want basic check on form itself.

i have form code here:

<%= form_tag '/page' %>     <%= label_tag %>     <%= text_field_tag %>     <%= label_tag %>     <%= text_field_tag %>     <br />     <%= submit_tag %> <% end %> 

which passes off controller:

def page     @page = hourly.new(params)     @page.function_call end 

which goes model:

class hourly      include activemodel::validations     attr_reader params     attr_accessor params     validates_presence_of params     def initialize(params)     end end 

is there not adding check validation of text_field_tags?

where submitting form data if it's tableless model? use jquery disable form button unless both of fields have value. or, better yet...use client_side_validations gem , set required validation 2 fields...it not allow form submitted if validation fails.