3 files changed, 25 insertions, 0 deletions
diff --git a/app/models/ability.rb b/app/models/ability.rb
index b846af0..0d13dab 100644
--- a/app/models/ability.rb
+++ b/app/models/ability.rb
@@ -82,6 +82,10 @@ class Ability
           #
           cannot [:create, :destroy], GsParameter
           cannot [:create, :destroy], GuiFunction
+
+          # An admin can not destroy his/her account
+          #
+          cannot [:destroy], User, :id => user.id
         else
           # Any user can do the following stuff.
           #
diff --git a/app/models/gemeinschaft_setup.rb b/app/models/gemeinschaft_setup.rb
index 6056236..4b4dd37 100644
--- a/app/models/gemeinschaft_setup.rb
+++ b/app/models/gemeinschaft_setup.rb
@@ -6,6 +6,14 @@ class GemeinschaftSetup < ActiveRecord::Base
   belongs_to :country
   belongs_to :language
 
+  validates :default_company_name,
+            :presence => true,
+            :uniqueness => true
+
+  validates :default_system_email,
+            :presence => true,
+            :uniqueness => true
+            
   # Remove the cache which was created by the heater rake task.
   #
   after_create :expire_cache
diff --git a/app/models/user.rb b/app/models/user.rb
index b902b99..afb3f04 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -95,6 +95,8 @@ class User < ActiveRecord::Base
 
   before_destroy :destroy_or_logout_phones
 
+  after_save :become_a_member_of_default_user_groups
+
   def destroy
     clean_whitelist_entries
     super
@@ -142,6 +144,9 @@ class User < ActiveRecord::Base
     self.pin_hash == Digest::SHA2.hexdigest( "#{self.pin_salt}#{entered_pin}" )
   end
   
+  def admin?
+    self.user_groups.include?(UserGroup.find(2))
+  end
 
   private
   
@@ -207,4 +212,12 @@ class User < ActiveRecord::Base
     end
   end
 
+  # Normaly a new user should become a member of default user groups.
+  #
+  def become_a_member_of_default_user_groups
+    UserGroup.where(:id => GsParameter.get('DEFAULT_USER_GROUPS_IDS')).each do |user_group|
+      user_group.user_group_memberships.create(:user_id => self.id)
+    end
+  end
+
 end