Remove cas auth from core and convert the settings over so they can be used by the plugin

db/migrate/20140211230222_move_cas_settings.rb

@@ -0,0 +1,36 @@
+class MoveCasSettings < ActiveRecord::Migration
+  def change
+    #As part of removing the build in CAS authentication we should
+    #convert the data over to be used by the plugin.
+    cas_hostname = SiteSetting.where(name: 'cas_hostname').first
+    cas_sso_hostname = SiteSetting.where(name: 'cas_sso_hostname').first
+    if cas_hostname  && ! cas_sso_hostname
+      #convert the setting over for use by the plugin
+      cas_hostname.update_attribute(:name, 'cas_sso_hostname')
+    elsif cas_hostname  && cas_sso_hostname
+      #copy the setting over for use by the plugin and delete the original setting
+      cas_sso_hostname.update_attribute(:value,cas_hostname.value)
+      cas_hostname.destroy
+    end
+
+    cas_domainname = SiteSetting.where(name: 'cas_domainname').first
+    cas_sso_email_domain = SiteSetting.where(name: 'cas_sso_email_domain').first
+    if cas_domainname  && ! cas_sso_email_domain
+      #convert the setting over for use by the plugin
+      cas_domainname.update_attribute(:name, 'cas_sso_email_domain')
+    elsif cas_domainname  && cas_sso_email_domain
+      #copy the setting over for use by the plugin and delete the original setting
+      cas_sso_email_domain.update_attribute(:value,cas_domainname.value)
+      cas_domainname.destroy
+    end
+
+    cas_logins = SiteSetting.where(name: 'cas_logins').first
+    if cas_logins
+      cas_logins.destroy
+    end
+
+    #remove the unused table
+   drop_table :cas_user_infos
+
+  end
+end