Add foreign key constraints

Gemfile

@@ -2,6 +2,7 @@ source 'http://rubygems.org'
 
 gem 'mysql2', '0.2.6'
 gem 'rails', '3.0.3'
+gem 'foreigner', '0.9.1'
 
 gem 'bundler', '>= 1.0.0'
 gem 'chef', '0.9.12', :require => false

Gemfile.lock

@@ -180,6 +180,7 @@ GEM
       net-ssh (~> 2.0.23)
       nokogiri (~> 1.4.3.1)
       ruby-hmac
+    foreigner (0.9.1)
     formatador (0.0.16)
     fuubar (0.0.3)
       rspec (~> 2.0)
@@ -404,6 +405,7 @@ DEPENDENCIES
   fastercsv (= 1.5.4)
   fixture_builder (~> 0.2.0)
   fog (= 0.3.25)
+  foreigner (= 0.9.1)
   fuubar
   googlecharts
   haml (= 3.0.25)

app/controllers/aspects_controller.rb

@@ -88,8 +88,8 @@ class AspectsController < ApplicationController
       current_user.drop_aspect @aspect
       flash[:notice] = I18n.t 'aspects.destroy.success',:name => @aspect.name
       redirect_to :back
-    rescue RuntimeError => e
+    rescue ActiveRecord::StatementInvalid => e
-      flash[:error] = e.message
+      flash[:error] = I18n.t 'aspects.destroy.failure',:name => @aspect.name
       redirect_to :back
     end
   end

app/models/contact.rb

@@ -11,7 +11,7 @@ class Contact < ActiveRecord::Base
   belongs_to :person
   validates_presence_of :person
 
-  has_many :aspect_memberships, :dependent => :delete_all
+  has_many :aspect_memberships
   has_many :aspects, :through => :aspect_memberships
   validate :not_contact_for_self
   validates_uniqueness_of :person_id, :scope => :user_id

app/models/notification.rb

@@ -7,7 +7,7 @@ class Notification < ActiveRecord::Base
   include Diaspora::Socketable
 
   belongs_to :recipient, :class_name => 'User'
-  has_many :notification_actors, :dependent => :destroy
+  has_many :notification_actors
   has_many :actors, :class_name => 'Person', :through => :notification_actors, :source => :person
   belongs_to :target, :polymorphic => true
 

app/models/person.rb

@@ -33,6 +33,8 @@ class Person < ActiveRecord::Base
   has_many :notification_actors
   has_many :notifications, :through => :notification_actors
 
+  has_many :mentions, :dependent => :destroy
+
   before_destroy :remove_all_traces
   before_validation :clean_url
 
@@ -188,9 +190,6 @@ class Person < ActiveRecord::Base
 
   private
   def remove_all_traces
-    Post.where(:person_id => id).delete_all
-    Comment.where(:person_id => id).delete_all
-    Contact.where(:person_id => id).delete_all
     Notification.joins(:notification_actors).where(:notification_actors => {:person_id => self.id}).all.each{ |n| n.destroy}
   end
 end

app/models/post.rb

@@ -14,7 +14,7 @@ class Post < ActiveRecord::Base
   xml_attr :public
   xml_attr :created_at
 
-  has_many :comments, :order => 'created_at ASC', :dependent => :destroy
+  has_many :comments, :order => 'created_at ASC'
   has_many :post_visibilities
   has_many :aspects, :through => :post_visibilities
   has_many :mentions, :dependent => :destroy

app/models/user.rb

@@ -32,7 +32,7 @@ class User < ActiveRecord::Base
 
   has_many :invitations_from_me, :class_name => 'Invitation', :foreign_key => :sender_id
   has_many :invitations_to_me, :class_name => 'Invitation', :foreign_key => :recipient_id
-  has_many :aspects, :dependent => :destroy
+  has_many :aspects
   has_many :aspect_memberships, :through => :aspects
   has_many :contacts
   has_many :contact_people, :through => :contacts, :source => :person
@@ -66,11 +66,7 @@ class User < ActiveRecord::Base
 
   ######### Aspects ######################
   def drop_aspect(aspect)
-    if aspect.contacts.count == 0
       aspect.destroy
-    else
-      raise "Aspect not empty"
-    end
   end
 
   def move_contact(person, to_aspect, from_aspect)
@@ -287,9 +283,11 @@ class User < ActiveRecord::Base
     Contact.unscoped.where(:user_id => self.id).each { |contact|
       if contact.person.owner_id
         contact.person.owner.disconnected_by self.person
+        remove_contact(contact)
       else
         self.disconnect contact
       end
     }
+    self.aspects.delete_all
   end
 end

config/locales/diaspora/en.yml

@@ -199,6 +199,7 @@ en:
           failure: "Aspect creation failed."
       destroy:
           success: "%{name} was successfully removed."
+          failure: "%{name} is not empty and could not be removed."
       update:
           success: "Your aspect, %{name}, has been successfully edited."
           failure: "Your aspect, %{name}, had too long name to be saved."

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20110217044519) do
+ActiveRecord::Schema.define(:version => 20110228201109) do
 
   create_table "aspect_memberships", :force => true do |t|
     t.integer  "aspect_id",  :null => false
@@ -476,4 +476,26 @@ ActiveRecord::Schema.define(:version => 20110217044519) do
   add_index "users", ["mongo_id"], :name => "index_users_on_mongo_id"
   add_index "users", ["username"], :name => "index_users_on_username", :unique => true
 
+  add_foreign_key "aspect_memberships", "aspects", :name => "aspect_memberships_aspect_id_fk"
+  add_foreign_key "aspect_memberships", "contacts", :name => "aspect_memberships_contact_id_fk", :dependent => :delete
+
+  add_foreign_key "comments", "people", :name => "comments_person_id_fk", :dependent => :delete
+  add_foreign_key "comments", "posts", :name => "comments_post_id_fk", :dependent => :delete
+
+  add_foreign_key "contacts", "people", :name => "contacts_person_id_fk", :dependent => :delete
+
+  add_foreign_key "invitations", "users", :name => "invitations_recipient_id_fk", :column => "recipient_id", :dependent => :delete
+  add_foreign_key "invitations", "users", :name => "invitations_sender_id_fk", :column => "sender_id", :dependent => :delete
+
+  add_foreign_key "notification_actors", "notifications", :name => "notification_actors_notification_id_fk", :dependent => :delete
+
+  add_foreign_key "posts", "people", :name => "posts_person_id_fk", :dependent => :delete
+
+  add_foreign_key "profiles", "people", :name => "profiles_person_id_fk", :dependent => :delete
+
+  add_foreign_key "requests", "people", :name => "requests_recipient_id_fk", :column => "recipient_id", :dependent => :delete
+  add_foreign_key "requests", "people", :name => "requests_sender_id_fk", :column => "sender_id", :dependent => :delete
+
+  add_foreign_key "services", "users", :name => "services_user_id_fk", :dependent => :delete
+
 end

spec/lib/data_conversion/import_to_mysql_spec.rb

@@ -37,8 +37,8 @@ describe DataConversion::ImportToMysql do
     Mongo::Service.delete_all
 
     User.delete_all
-    Aspect.delete_all
     AspectMembership.delete_all
+    Aspect.delete_all
     Comment.delete_all
     Invitation.delete_all
     Notification.delete_all

spec/models/contact_spec.rb

@@ -10,7 +10,7 @@ describe Contact do
       @user = alice
       @user2 = bob
     end
-    it 'set to dependant delete_all' do
+    it 'deletes dependent aspect memberships' do
       lambda{
         @user.contact_for(@user2.person).destroy
       }.should change(AspectMembership, :count).by(-1)

spec/models/person_spec.rb

@@ -131,6 +131,28 @@ describe Person do
       lambda {@deleter.destroy}.should change(Post, :count).by(-1)
     end
 
+    it "deletes a person's profile" do
+      lambda {
+        @deleter.destroy
+      }.should change(Profile, :count).by(-1)
+    end
+
+    it 'deletes all requests to a person' do
+      alice.send_contact_request_to(eve.person, alice.aspects.first)
+      Request.count.should == 1
+      lambda {
+        eve.person.destroy
+      }.should change(Request, :count).by(-1)
+    end
+
+    it 'deletes all requests from a person' do
+      Request.create(:sender_id => @deleter.id, :recipient_id => alice.person.id)
+      Request.count.should == 1
+      lambda {
+        @deleter.destroy
+      }.should change(Request, :count).by(-1)
+    end
+
     it "deletes a person's comments on person deletion" do
       Factory.create(:comment, :person_id => @deleter.id, :diaspora_handle => @deleter.diaspora_handle, :text => "i love you",     :post => @other_status)
       Factory.create(:comment, :person_id => @person.id,:diaspora_handle => @person.diaspora_handle,  :text => "you are creepy", :post => @other_status)

spec/models/user_spec.rb

@@ -302,7 +302,7 @@ describe User do
     it 'should not delete an aspect with contacts' do
       aspect = alice.aspects.first
       aspect.contacts.count.should > 0
-      proc { alice.drop_aspect(aspect) }.should raise_error /Aspect not empty/
+      proc { alice.drop_aspect(aspect) }.should raise_error ActiveRecord::StatementInvalid
       alice.aspects.include?(aspect).should == true
     end
   end
@@ -323,6 +323,20 @@ describe User do
       alice.destroy
     end
 
+    it 'removes invitations from the user' do
+      alice.invite_user alice.aspects.first.id, 'email', 'blah@blah.blah'
+      lambda {
+        alice.destroy
+      }.should change {alice.invitations_from_me(true).count }.by(-1)
+    end
+
+    it 'removes invitations to the user' do
+      Invitation.create(:sender_id => eve.id, :recipient_id => alice.id, :aspect_id => eve.aspects.first.id)
+      lambda {
+        alice.destroy
+      }.should change {alice.invitations_to_me(true).count }.by(-1)
+    end
+
     it 'should remove person' do
       alice.should_receive(:remove_person)
       alice.destroy
@@ -334,6 +348,19 @@ describe User do
       }.should change{ alice.aspects(true).count }.by(-1)
     end
 
+    it 'removes all contacts' do
+      lambda {
+        alice.destroy
+      }.should change { alice.contacts(true).count }.by(-1)
+    end
+
+    it 'removes all service connections' do
+      Services::Facebook.create(:access_token => 'what', :user_id => alice.id)
+      lambda {
+        alice.destroy
+      }.should change { alice.services(true).count }.by(-1)
+    end
+
     describe '#remove_person' do
       it 'should remove the person object' do
         person = alice.person