Im cornered with this problem in one of my apps. Let me define the models first. Paycheck has_one salstruct, :class_name => ''Salary_Structure'' Paycheck belongs_to employee Adjustment #a model for additions/deductions that do not fall into the normal Salary Structure and are last minute add-ons to the Paycheck. eg, Christmas bonus. The Adjustments table has the columns Name (string) and Value (integer in terms of percentage). I allow 2 Adjustments for every Paycheck. The paycheck table has the columns Adj_1 (string), Adj_2 (string), Adj_1_value (float), Adj_2_value (float). There is no association between Paycheck and Adjustment. In the _paycheck partial (used for both editing and creating paychecks) , I use the following code. <%= f.collection_select :adj_1, current_user.adjustments.find (:all) , :value, :name, {:include_blank=>true, :id => "paycheck_adj_1"},{:onblur => ''calculate();''} %>% This code lets the user select the Adjustment by its name (say, Christmas bonus, Leave Deduction, etc), but I have set the value that gets into the DB as the ''value'' attribute of the adjustment. I have done this because i am using Prototype to perform some calculations on the values of the adjustments chosen. The following are my requirements, - the ''name'' attribute of the adjustment chosen by the user, should go into paycheck_adj_1/paycheck_adj_2 respectively. - the Prototype JS function ''calculate()'' uses the ''value'' attribute of the chosen adjustment in the form of DOM_ID.value. Preferably, I should not have to hack into that code too much as its working great right now. And the results of these calculations are stored in paycheck_adj_1_value/paycheck_adj_2_value respectively. - If the User chooses to delete an Adjustment at any time from the Adjustments table, It should not affect the Adjustments data stored for issued Paychecks (which is why I have designed the DB the way I have) Now, although I think Ive got the 3rd requirement covered, the first two pose a problem in that I cant think of a way to satisfy both simultaneously. I do hope though, that some of you can help me resolve this problem. Will gladly explain more in detail if needed. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---