On Sat, Oct 24, 2009 at 7:09 PM, Misiek Sz <[email protected]> wrote: > > Hey, I'm trying to achieve something relatively simple and missing > something that is probably very simple, which I'm loosing my head over. > My situation is the following: I have two tables: > -education_plans > -students > Each student has_one ed_plan and each ed_plan belongs to one student. > What I'm trying to achieve is on the form when new ed_plan is created, I > want to have a text box where I can enter st_id(not primary key of the > students table, my own id created for each student). Then the call is > made to the get_student_info method where student info is pulled and > associated with the education plan. This is where the problem is because > I render text or template from get_student_info method fine, but how do > I at the same time associate returned info about the student with > ed_plan. > I've tried number of various combinations and I just can't get it to > work. I'm really hoping you guys can help me out. > So my new view on ed_plans looks like this: > <% form_for(@education_plan) do |f| %> > <%= f.error_messages %> > <table> > <tr> > <td>Student name</td> > <td>Student ID</td> > <td>Grade</td> > </tr> > <tr> > <td><div id="student_info"></div></td> > > > <td><%=text_field_tag :st_id %></td> > > <%= observe_field(:st_id, :frequency => 0.25, :update => > :student_id, > :url =>{:action => :get_student_info}, :with => > 'st_id') %> > <td><div id="student_grade"></div></td> > </tr> > <tr> > <td><%= f.label :comments %></td> > <td><%= f.text_area(:comments, :cols => 30, :rows => 4) %></td> > </tr> > <tr> > <td><%= f.label :service_code %></td> > <td><%= f.text_field(:service_code, :size =>3) %></td> > </tr> > <tr> > <td><%= f.label :school_number %></td> > <td><%= f.text_field(:school_number, :size =>3) %></td> > </tr> > > > </table> > <%= f.submit 'Create'%> > > the get_student_info methods looks like this: > def get_student_info > @student = Student.find_by_osis(params[:osis]) > # @education_plan.student_id = @student > return @student > end > > Also, one thing I couldn't get that if I uncomment the line # > @education_plan.student_id = @student I get error method not available > for nil object, which is very weird because that method is in the > EducationPlan controller.
The error message says that you're calling a method on a nil object. If you uncomment that line, you will be calling the student_id method on @education_plan instance, but @education_plan is nil there. -- Leonardo Mateo. There's no place like ~ --~--~---------~--~----~------------~-------~--~----~ 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 [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
