From d794593e10cd328541e4d939a5153ab456f30bd9 Mon Sep 17 00:00:00 2001
From: Stella Rouzi <differentreality@gmail.com>
Date: Wed, 30 Jul 2014 15:22:14 +0300
Subject: [PATCH] migrate roles

---
 ...0140730104658_migrate_roles_for_can_can.rb | 28 +++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 db/migrate/20140730104658_migrate_roles_for_can_can.rb

diff --git a/db/migrate/20140730104658_migrate_roles_for_can_can.rb b/db/migrate/20140730104658_migrate_roles_for_can_can.rb
new file mode 100644
index 00000000..4c833280
--- /dev/null
+++ b/db/migrate/20140730104658_migrate_roles_for_can_can.rb
@@ -0,0 +1,28 @@
+class MigrateRolesForCanCan < ActiveRecord::Migration
+
+  def up
+    # Store the number of existing roles
+    old_roles = Role.count
+
+    Role.all.each do |role|
+      role.users.each do |user|
+        Conference.all.each do |conference|
+          if role.name == 'Admin' || role.name == 'Organizer'
+            user.add_role :organizer, conference
+          else
+            user.add_role role.name.parameterize.underscore.to_sym, conference
+          end
+        end
+      end
+    end
+
+    # Delete old roles
+    Role.first(old_roles).each do |role|
+      role.destroy
+    end
+  end
+
+  def down
+    raise ActiveRecord::IrreversibleMigration.new('Cannot reverse migration. Deleted events cannot be re-created')
+  end
+end