Hello!
I've been cracking my head on this for a bit, and I'm ready to plead for help.
I'm trying to create a Polymorphic model for Effects in my RoR card game. My original idea was to structure it like this:
class Card < ActiveRecord::Base has_many :effects, :through => :is_effect
class Effect < ActiveRecord::Base belongs_to :card belongs_to :is_effect, :polymorphic => true
class AddSubtractEffect < Effect
Am I going about this the wrong way?
Thanks in advance,
dan
A little more information. I'm using edge rails.
I've updated a few models to look like so:
class Card < ActiveRecord::Base has_many :is_effect, :dependent => :destroy has_many :effects, :through => :is_effect
class Effect < ActiveRecord::Base belongs_to :card belongs_to :is_effect, :polymorphic => true
class AddSubtractEffect < Effect
when I try adding an effect to a Card object, this is what I get:
ArgumentError: ./script/../config/../config/../vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb:399:in `to_constant_name': Anonymous modules have no name to be referenced by from ./script/../config/../config/../vendor/rails/activerecord/lib/active_record/base.rb:1359:in `compute_type' from ./script/../config/../config/../vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb:211:in `qualified_name_for' from ./script/../config/../config/../vendor/rails/activerecord/lib/../../activesupport/lib/active_support/dependencies.rb:470:in `const_missing' from (eval):1:in `compute_type' from ./script/../config/../config/../vendor/rails/activerecord/lib/active_record/reflection.rb:112:in `klass' from ./script/../config/../config/../vendor/rails/activerecord/lib/active_record/reflection.rb:163:in `source_reflection' from ./script/../config/../config/../vendor/rails/activerecord/lib/active_record/reflection.rb:163:in `source_reflection' from ./script/../config/../config/../vendor/rails/activerecord/lib/active_record/reflection.rb:172:in `check_validity!' from ./script/../config/../config/../vendor/rails/activerecord/lib/active_record/associations/has_many_through_association.rb:6:in `initialize' from ./script/../config/../config/../vendor/rails/activerecord/lib/active_record/associations.rb:920:in `effects' from (irb):5