Supporting for multiple omniauth provider for the same user

1 files changed, 14 insertions, 3 deletions

diff --git a/db/migrate/20141121161704_add_identity_table.rb b/db/migrate/20141121161704_add_identity_table.rb
index 7d019c65ee1..243958039af 100644
--- a/db/migrate/20141121161704_add_identity_table.rb
+++ b/db/migrate/20141121161704_add_identity_table.rb
@@ -8,14 +8,25 @@ class AddIdentityTable < ActiveRecord::Migration
 
     add_index :identities, :user_id
 
-    User.where("provider is not NULL").find_each do |user|
+    User.where("provider IS NOT NULL").find_each do |user|
       execute "INSERT INTO identities(provider, extern_uid, user_id) VALUES('#{user.provider}', '#{user.extern_uid}', '#{user.id}')"
     end
 
-    #TODO remove user's columns extern_uid and provider
+    remove_column :users, :extern_uid
+    remove_column :users, :provider
   end
 
   def down
-#TODO
+    add_column :users, :extern_uid, :string
+    add_column :users, :provider, :string
+
+    User.where("id IN(SELECT user_id FROM identities)").find_each do |user|
+      identity = user.identities.last
+      user.extern_uid = identity.extern_uid
+      user.provider = identity.provider
+      user.save
+    end
+
+    drop_table :identities
   end
 end