[#76864570] data consistency report with database foreign keys

Squashed commit of the following:

commit 439afbf
Author: Franco Sellitto <franco.sellitto@zhdk.ch>
Date:   Mon Sep 15 12:15:26 2014 +0200

    introducing database foreign keys

Gemfile

@@ -23,6 +23,7 @@ gem 'factory_girl', '~> 4.1', group: [:test, :development]
 gem 'factory_girl_rails', '~> 4.1', group: [:test, :development]
 gem 'faker', '1.3.0', group: [:test, :development] # NOTE '~> 1.4' doesn't work beacause "I18n::InvalidLocale" error, see note for config.i18n in config/application.rb
 gem 'font-awesome-rails', '~> 3.2.1' # NOTE in order to upgrade to '~> 4.0', use .fa css class instead of .icon
+gem 'foreigner', '~> 1.6'
 gem 'geocoder', '~> 1.1'
 gem 'gettext_i18n_rails', '~> 1.0'
 gem 'guard-jasmine', '~> 1.19', group: [:test, :development]

Gemfile.lock

@@ -109,7 +109,7 @@ GEM
     compass-rails (1.1.7)
       compass (>= 0.12.2)
       sprockets (<= 2.11.0)
-    cucumber (1.3.17)
+    cucumber (1.3.16)
       builder (>= 2.1.2)
       diff-lcs (>= 1.1.3)
       gherkin (~> 2.12)
@@ -140,9 +140,11 @@ GEM
     ffi (1.9.3)
     font-awesome-rails (3.2.1.3)
       railties (>= 3.2, < 5.0)
+    foreigner (1.6.1)
+      activerecord (>= 3.0.0)
     formatador (0.2.5)
     fssm (0.2.10)
-    geocoder (1.2.5)
+    geocoder (1.2.4)
     gettext_i18n_rails (1.1.0)
       fast_gettext (>= 0.9.0)
     gherkin (2.12.2)
@@ -178,7 +180,7 @@ GEM
       open4 (~> 1.0)
     launchy (2.4.2)
       addressable (~> 2.3)
-    libv8 (3.16.14.7)
+    libv8 (3.16.14.5)
     listen (2.7.9)
       celluloid (>= 0.15.2)
       rb-fsevent (>= 0.9.3)
@@ -364,6 +366,7 @@ DEPENDENCIES
   factory_girl_rails (~> 4.1)
   faker (= 1.3.0)
   font-awesome-rails (~> 3.2.1)
+  foreigner (~> 1.6)
   geocoder (~> 1.1)
   gettext_i18n_rails (~> 1.0)
   guard-jasmine (~> 1.19)

cider-ci/tasks/cucumber_scenarios.yml

@@ -11,11 +11,11 @@
     cucumber:
       body: bundle exec cucumber -p default -f json -o log/cucumber_report.json features/administration/database.feature:12
         DEFAULT_BROWSER=firefox
-- name: Check empty columns - features/administration/database.feature:17
+- name: Check empty columns - features/administration/database.feature:21
   auto_trials: 2
   scripts:
     cucumber:
-      body: bundle exec cucumber -p default -f json -o log/cucumber_report.json features/administration/database.feature:17
+      body: bundle exec cucumber -p default -f json -o log/cucumber_report.json features/administration/database.feature:21
         DEFAULT_BROWSER=firefox
 - name: Verwalten-Bereich sperren - features/administration/wartungsmodus.feature:12
   auto_trials: 2

db/migrate/20140903105715_foreign_keys.rb

@@ -0,0 +1,74 @@
+class ForeignKeys < ActiveRecord::Migration
+  def change
+
+    begin
+
+      add_foreign_key(:access_rights, :inventory_pools, dependent: :delete)
+      add_foreign_key(:access_rights, :users)
+      add_foreign_key(:accessories, :models, dependent: :delete)
+      add_foreign_key(:attachments, :models, dependent: :delete)
+      add_foreign_key(:contract_lines, :items)
+      add_foreign_key(:contract_lines, :models)
+      add_foreign_key(:contract_lines, :options)
+      add_foreign_key(:contract_lines, :purposes)
+      add_foreign_key(:contract_lines, :contracts, dependent: :delete)
+      add_foreign_key(:contract_lines, :users, column: 'returned_to_user_id')
+      add_foreign_key(:contracts, :inventory_pools)
+      add_foreign_key(:contracts, :users)
+      add_foreign_key(:contracts, :users, column: 'delegated_user_id')
+      add_foreign_key(:contracts, :users, column: 'handed_over_by_user_id')
+      add_foreign_key(:database_authentications, :users, dependent: :delete)
+      add_foreign_key(:groups, :inventory_pools)
+      add_foreign_key(:histories, :users)
+      add_foreign_key(:holidays, :inventory_pools, dependent: :delete)
+      add_foreign_key(:inventory_pools, :addresses)
+      add_foreign_key(:items, :inventory_pools)
+      add_foreign_key(:items, :inventory_pools, column: 'owner_id')
+      add_foreign_key(:items, :items, column: 'parent_id', dependent: :nullify)
+      add_foreign_key(:items, :locations)
+      add_foreign_key(:items, :models)
+      add_foreign_key(:items, :suppliers)
+      add_foreign_key(:locations, :buildings)
+      add_foreign_key(:model_group_links, :model_groups, column: 'ancestor_id', dependent: :delete)
+      add_foreign_key(:model_group_links, :model_groups, column: 'descendant_id', dependent: :delete)
+      add_foreign_key(:model_links, :model_groups, dependent: :delete)
+      add_foreign_key(:model_links, :models, dependent: :delete)
+      add_foreign_key(:notifications, :users, dependent: :delete)
+      add_foreign_key(:options, :inventory_pools)
+      add_foreign_key(:partitions, :groups)
+      add_foreign_key(:partitions, :inventory_pools)
+      add_foreign_key(:partitions, :models, dependent: :delete)
+      add_foreign_key(:properties, :models, dependent: :delete)
+      add_foreign_key(:users, :authentication_systems)
+      add_foreign_key(:users, :languages)
+      add_foreign_key(:users, :users, column: 'delegator_user_id')
+      add_foreign_key(:workdays, :inventory_pools, dependent: :delete)
+
+      # join tables
+      add_foreign_key(:accessories_inventory_pools, :accessories)
+      add_foreign_key(:accessories_inventory_pools, :inventory_pools)
+      add_foreign_key(:delegations_users, :users)
+      add_foreign_key(:delegations_users, :users, column: 'delegation_id')
+      add_foreign_key(:groups_users, :groups)
+      add_foreign_key(:groups_users, :users)
+      add_foreign_key(:inventory_pools_model_groups, :inventory_pools)
+      add_foreign_key(:inventory_pools_model_groups, :model_groups)
+      add_foreign_key(:models_compatibles, :models)
+      add_foreign_key(:models_compatibles, :models, column: 'compatible_id')
+
+    rescue
+
+      puts %Q(
+        *************************************************************************************
+        Error: the database has inconsistency issues caused by dead references.
+        Please visit the consistency report at the following url: /admin/database/consistency
+        After solving the issues, run again: rake db:migrate
+        *************************************************************************************
+      )
+
+      raise
+
+    end
+
+  end
+end

features/administration/database.feature

@@ -12,6 +12,10 @@ Feature: Database
   Scenario: Check data consistency
     When I visit "/admin/database/consistency"
     Then all is correct
+    When a database admin deletes some referenced records directly on the database
+    Then the delete is prevented
+    When I visit "/admin/database/consistency"
+    Then all is correct
 
   @personas
   Scenario: Check empty columns