On Feb 19, 8:16 pm, John Merlino <li...@ruby-forum.com> wrote:
> Hey all,
>
> Let's say you are not going to use an html form. Rather the user will
> input data in a third-party application that will communicate with the
> rails controller through http requests, but serves as a replacement to
> the html. In other words, it's taking the place of front end.
>
> My question is can you update the attributes of another table, let's say
> studentfails table, from let's say a students controller (which has a
> students table) based on user input (the user input needs to be inserted
> in the studentfails table).
>
> I was hoping something like this, but this doesn't work:
>
> student.rb
> has_one :student_fail
> attr_accessor :student_fail_attribute
>
> def find_failing_student
> @student = @student.find params[:id]
> end
> def update_failing_student
> @student = @student.find params[:id]
> @student.build_student_fail params[:student][:student_fail_attribute]
> end
You don't appear to be *saving* the result from
@student.build_student_fail. Either you're looking for
create_student_fail (which saves the record) or something like:
def update_failing_student
@student = Student.find(params[:id])
@student_fail = @student.build_student_fail(params[:student]
[:student_fail_attribute])
if @student_fail.save
# save succeeded
else
# save failed - re-render form with errors
end
end
> Even for this you have to put student_fail_attribute in the html. I'm
> hoping there's a way where you don't have to put anything in the html.
Not sure what you're looking for here: it's going to be hard to get a
field from the user without asking for it...
--Matt Jones
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