On Dec 29, 2010, at 11:33 AM, Jim Burgess wrote: > Hi, > > I'm trying to understand some code in a book I'm reading and was hoping > someone could tell me if I have understood it correctly. > > There are two models, an employee model and a department model. A > department has_many :employees and an employee belongs_to :department. > > Here's a snippet of code from the form to edit an existing employee: > > <% fields_for( @employee.department) do |department_f| %> > <p> > <%= department_f.label :name,"Department name" %><br /> > <%= department_f.text_field :name %> > </p> > <% end %> > > The form is submitted to the update action of 'employees_controller.rb', > where there is the following code: > > if @employee.update_attributes(params[:employee]) && > @employee.department.update_attributes(params[:department]) > ... employee successfully updated ... > end > > My question is about the line > "@employee.department.update_attributes(params[:department])" > > Is it correct to say that this code updates the attributes (in this case > "name") of the Department object that is linked (via the "has_many" and > "belongs_to" relationship) to the Employee object currently being > edited?
Yes. And it only does this if the update to @employee was successful first. -philip -- 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-t...@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
