From dc55fc10f1961dd1cbcda328dbecac557e6f0f4d Mon Sep 17 00:00:00 2001
From: Andrew Tomaka <atomaka@gmail.com>
Date: Wed, 14 Oct 2015 08:45:24 -0400
Subject: [PATCH] Support associations (no has_and_belongs_to)

---
 app/controllers/admin/versions_controller.rb  |  2 +-
 ...51014121823_create_version_associations.rb | 17 +++++++++++++++
 ...4_add_transaction_id_column_to_versions.rb | 11 ++++++++++
 db/schema.rb                                  | 21 ++++++++++++++-----
 4 files changed, 45 insertions(+), 6 deletions(-)
 create mode 100644 db/migrate/20151014121823_create_version_associations.rb
 create mode 100644 db/migrate/20151014121824_add_transaction_id_column_to_versions.rb

diff --git a/app/controllers/admin/versions_controller.rb b/app/controllers/admin/versions_controller.rb
index 83ec1c9..d16a86d 100644
--- a/app/controllers/admin/versions_controller.rb
+++ b/app/controllers/admin/versions_controller.rb
@@ -11,6 +11,6 @@ class Admin::VersionsController < Admin::BaseController
   private
 
   def set_version
-    @version = PaperTrail::Version.find(params[:id]).reify
+    @version = PaperTrail::Version.find(params[:id]).reify(has_one: true)
   end
 end
diff --git a/db/migrate/20151014121823_create_version_associations.rb b/db/migrate/20151014121823_create_version_associations.rb
new file mode 100644
index 0000000..12c8f06
--- /dev/null
+++ b/db/migrate/20151014121823_create_version_associations.rb
@@ -0,0 +1,17 @@
+class CreateVersionAssociations < ActiveRecord::Migration
+  def self.up
+    create_table :version_associations do |t|
+      t.integer  :version_id
+      t.string   :foreign_key_name, :null => false
+      t.integer  :foreign_key_id
+    end
+    add_index :version_associations, [:version_id]
+    add_index :version_associations, [:foreign_key_name, :foreign_key_id], :name => 'index_version_associations_on_foreign_key'
+  end
+
+  def self.down
+    remove_index :version_associations, [:version_id]
+    remove_index :version_associations, :name => 'index_version_associations_on_foreign_key'
+    drop_table :version_associations
+  end
+end
\ No newline at end of file
diff --git a/db/migrate/20151014121824_add_transaction_id_column_to_versions.rb b/db/migrate/20151014121824_add_transaction_id_column_to_versions.rb
new file mode 100644
index 0000000..67e0e22
--- /dev/null
+++ b/db/migrate/20151014121824_add_transaction_id_column_to_versions.rb
@@ -0,0 +1,11 @@
+class AddTransactionIdColumnToVersions < ActiveRecord::Migration
+  def self.up
+    add_column :versions, :transaction_id, :integer
+    add_index :versions, [:transaction_id]
+  end
+
+  def self.down
+    remove_index :versions, [:transaction_id]
+    remove_column :versions, :transaction_id
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 81bdf6a..33c88fa 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20151009204428) do
+ActiveRecord::Schema.define(version: 20151014121824) do
 
   create_table "awaken_types", force: :cascade do |t|
     t.string   "name"
@@ -134,15 +134,26 @@ ActiveRecord::Schema.define(version: 20151009204428) do
 
   add_index "users_roles", ["user_id", "role_id"], name: "index_users_roles_on_user_id_and_role_id"
 
+  create_table "version_associations", force: :cascade do |t|
+    t.integer "version_id"
+    t.string  "foreign_key_name", null: false
+    t.integer "foreign_key_id"
+  end
+
+  add_index "version_associations", ["foreign_key_name", "foreign_key_id"], name: "index_version_associations_on_foreign_key"
+  add_index "version_associations", ["version_id"], name: "index_version_associations_on_version_id"
+
   create_table "versions", force: :cascade do |t|
-    t.string   "item_type",                     null: false
-    t.integer  "item_id",                       null: false
-    t.string   "event",                         null: false
+    t.string   "item_type",                         null: false
+    t.integer  "item_id",                           null: false
+    t.string   "event",                             null: false
     t.string   "whodunnit"
-    t.text     "object",     limit: 1073741823
+    t.text     "object",         limit: 1073741823
     t.datetime "created_at"
+    t.integer  "transaction_id"
   end
 
   add_index "versions", ["item_type", "item_id"], name: "index_versions_on_item_type_and_item_id"
+  add_index "versions", ["transaction_id"], name: "index_versions_on_transaction_id"
 
 end