Added IssueComments + ForeignKeys + Indexes

db/migrate/20150526130032_create_issue_comments.rb

@@ -0,0 +1,12 @@
+class CreateIssueComments < ActiveRecord::Migration
+  def change
+    create_table :issue_comments do |t|
+      t.integer :issue_id
+      t.integer :user_id
+      t.text :body
+      t.datetime :created_at
+
+      t.timestamps null: false
+    end
+  end
+end

db/migrate/20150528113100_add_foreign_keys_for_issues.rb

@@ -0,0 +1,11 @@
+require "migrate"
+
+class AddForeignKeysForIssues < ActiveRecord::Migration
+  def change
+  	add_foreign_key :issues, :users, :name => "issues_user_id_fkey"
+  	add_foreign_key :reports, :issues, :name => "reports_issue_id_fkey"
+  	add_foreign_key :reports, :users, :name => "reports_user_id_fkey"
+  	add_foreign_key :issue_comments, :issues, :name => "issue_comments_issue_id_fkey"
+  	add_foreign_key :issue_comments, :users, :name => "issue_comments_user_id"
+  end
+end

db/migrate/20150528114520_add_indexes_for_issues.rb

@@ -0,0 +1,19 @@
+class AddIndexesForIssues < ActiveRecord::Migration
+	def self.up
+    add_index :issues, :user_id
+    add_index :issues, [:reportable_id, :reportable_type]
+    add_index :reports, :issue_id
+    add_index :reports, :user_id
+  	add_index :issue_comments, :user_id
+  	add_index :issue_comments, :issue_id
+  end
+
+  def self.down
+    remove_index :issues, :user_id
+    remove_index :issues, [:reportable_id, :reportable_type]
+    remove_index :reports, :issue_id
+    remove_index :reports, :user_id
+  	remove_index :issue_comments, :user_id
+  	remove_index :issue_comments, :issue_id
+  end
+end