schema changes to support fast presentation of results

Pius Uzamere
1 parent 5429d2f0
Showing 2 changed files with 20 additions and 0 deletions Show diff stats
db/migrate/20100128031315_add_question_id_to_items.rb
db/migrate/20100128031509_add_data_to_choices.rb
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+class AddQuestionIdToItems < ActiveRecord::Migration
+  def self.up
+    add_column :items, :question_id, :integer
+  end
+
+  def self.down
+    remove_column :items, :question_id
+  end
+end
@@ -0,0 +1,11 @@
+class AddDataToChoices < ActiveRecord::Migration
+  def self.up
+    add_column :choices, :data, :string
+    puts "copying existing item data into associated choices ..."
+    Choice.all.each {|c| c.data = c.item.data; c.save!}
+  end
+
+  def self.down
+    remove_column :choices, :data
+  end
+end
...	...	@@ -0,0 +1,9 @@
	1	+class AddQuestionIdToItems < ActiveRecord::Migration
	2	+ def self.up
	3	+ add_column :items, :question_id, :integer
	4	+ end
	5	+
	6	+ def self.down
	7	+ remove_column :items, :question_id
	8	+ end
	9	+end
...	...
...	...	@@ -0,0 +1,11 @@
	1	+class AddDataToChoices < ActiveRecord::Migration
	2	+ def self.up
	3	+ add_column :choices, :data, :string
	4	+ puts "copying existing item data into associated choices ..."
	5	+ Choice.all.each {\|c\| c.data = c.item.data; c.save!}
	6	+ end
	7	+
	8	+ def self.down
	9	+ remove_column :choices, :data
	10	+ end
	11	+end
...	...