On Mar 25, 2010, at 4:43 PM, Alex Bowyer wrote:
Hi Matt,
Thanks
Yes, hard coded, this is a one time, time-specific app that won't be
used again.
so if i just have three fields
first_choice
second_choice
third_choice
what do I have to do to make sure rails and hobo knows they are
foreign keys? I only know how to specify foreign keys via has_many etc
A straightforward way to set this up:
Voter has_one :vote
class Vote < ActiveRecord::Base
hobo_model
fields do
timestamps
end
belongs_to :voter
belongs_to :first_choice, :class_name => 'Choice'
belongs_to :second_choice, :class_name => 'Choice'
belongs_to :third_choice, :class_name => 'Choice'
end
class Choice
hobo_model
fields do
name :string
end
has_many :first_votes, :class_name => 'Vote', :foreign_key =>
'first_choice_id'
has_many :second_votes, :class_name => 'Vote', :foreign_key =>
'second_choice_id'
has_many :third_votes, :class_name => 'Vote', :foreign_key =>
'third_choice_id'
end
---------
I split the Vote model off only because it's cleaner, and accommodates
the inevitable, "can we do another vote" requests. You can also drop
an auto_actions_for :user, [:new, :create] onto the VotesController
and get pretty URLs like:
/users/1234/votes/new
With this setup, you *should* get a decent automatic create page with
select-one dropdowns for first/second/third choices.
Hope this helps!
--Matt Jones
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