enable negatedif and correct db file

fix spacing

.rubocop.yml

@@ -63,15 +63,15 @@ Style/EmptyLiteral:
 Style/For:
   Enabled: true
 
-# Checks that operators have space around them, except for ** which should not have surrounding space.
-Style/SpaceAroundOperators:
-  Enabled: true
-
 # Use the new Ruby 1.9 hash syntax
 Style/HashSyntax:
   Enabled: true
   EnforcedStyle: ruby19
 
+# Checks for uses of if with negated condition. Use unless instead
+Style/NegatedIf:
+  Enabled: true
+
 # Do not compare with nil. Use .nil? instead
 Style/NilComparison:
   Enabled: true
@@ -80,6 +80,10 @@ Style/NilComparison:
 Style/RedundantSelf:
   Enabled: true
 
+# Checks that operators have space around them, except for ** which should not have surrounding space.
+Style/SpaceAroundOperators:
+  Enabled: true
+
 # Use single quotes unless there's string interpolation
 Style/StringLiterals:
   Enabled: true

.rubocop_todo.yml

@@ -439,20 +439,6 @@ Style/MutableConstant:
     - 'app/models/event_user.rb'
     - 'app/models/role.rb'
 
-# Offense count: 16
-# Cop supports --auto-correct.
-Style/NegatedIf:
-  Exclude:
-    - 'app/controllers/admin/events_controller.rb'
-    - 'app/controllers/application_controller.rb'
-    - 'app/controllers/conference_registrations_controller.rb'
-    - 'app/controllers/proposal_controller.rb'
-    - 'app/models/conference.rb'
-    - 'app/models/datatable.rb'
-    - 'app/models/event.rb'
-    - 'app/models/venue.rb'
-    - 'db/migrate/20140820093735_migrating_supporter_registrations_to_ticket_users.rb'
-
 # Offense count: 4
 Style/NestedParenthesizedCalls:
   Exclude:

db/migrate/20140820093735_migrating_supporter_registrations_to_ticket_users.rb

@@ -30,7 +30,7 @@ class MigratingSupporterRegistrationsToTicketUsers < ActiveRecord::Migration
           s.save
         end
       end
-      if !s.user_id
+      unless s.user_id
         s.user_id = deleted_user.id
         s.save
       end