require 'cases/helper'
module Remembered
def self.included(base)
base.extend ClassMethods
base.class_eval do
after_create :remember
protected
def remember; self.class.remembered << self; end
end
end
module ClassMethods
def remembered; @@remembered ||= []; end
def rand; @@remembered.rand; end
end
end
class ShapeExpression < ActiveRecord::Base
belongs_to :shape, :polymorphic => true
belongs_to :paint, :polymorphic => true
end
class Circle < ActiveRecord::Base
has_many :shape_expressions, :as => :shape
include Remembered
end
class Square < ActiveRecord::Base
has_many :shape_expressions, :as => :shape
include Remembered
end
class Triangle < ActiveRecord::Base
has_many :shape_expressions, :as => :shape
include Remembered
end
class PaintColor < ActiveRecord::Base
has_many :shape_expressions, :as => :paint
belongs_to :non_poly, :foreign_key => "non_poly_one_id", :class_name => "NonPolyOne"
include Remembered
end
class PaintTexture < ActiveRecord::Base
has_many :shape_expressions, :as => :paint
belongs_to :non_poly, :foreign_key => "non_poly_two_id", :class_name => "NonPolyTwo"
include Remembered
end
class NonPolyOne < ActiveRecord::Base
has_many :paint_colors
include Remembered
end
class NonPolyTwo < ActiveRecord::Base
has_many :paint_textures
include Remembered
end
class EagerLoadPolyAssocsTest < ActiveRecord::TestCase
NUM_SIMPLE_OBJS = 50
NUM_SHAPE_EXPRESSIONS = 100
def setup
generate_test_object_graphs
end
def teardown
[Circle, Square, Triangle, PaintColor, PaintTexture,
ShapeExpression, NonPolyOne, NonPolyTwo].each do |c|
c.delete_all
end
end
def generate_test_object_graphs
1.upto(NUM_SIMPLE_OBJS) do
[Circle, Square, Triangle, NonPolyOne, NonPolyTwo].map(&:create!)
end
1.upto(NUM_SIMPLE_OBJS) do
PaintColor.create!(:non_poly_one_id => NonPolyOne.rand.id)
PaintTexture.create!(:non_poly_two_id => NonPolyTwo.rand.id)
end
1.upto(NUM_SHAPE_EXPRESSIONS) do
shape_type = [Circle, Square, Triangle].rand
paint_type = [PaintColor, PaintTexture].rand
ShapeExpression.create!(:shape_type => shape_type.to_s, :shape_id => shape_type.rand.id,
:paint_type => paint_type.to_s, :paint_id => paint_type.rand.id)
end
end
def test_include_query
res = 0
res = ShapeExpression.find :all, :include => [ :shape, { :paint => :non_poly } ]
assert_equal NUM_SHAPE_EXPRESSIONS, res.size
assert_queries(0) do
res.each do |se|
assert_not_nil se.paint.non_poly, "this is the association that was loading incorrectly before the change"
assert_not_nil se.shape, "just making sure other associations still work"
end
end
end
end
