diff options
Diffstat (limited to 'db/migrate')
-rw-r--r-- | db/migrate/20170828135939_migrate_user_external_mail_data.rb | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/db/migrate/20170828135939_migrate_user_external_mail_data.rb b/db/migrate/20170828135939_migrate_user_external_mail_data.rb new file mode 100644 index 00000000000..592e141b7e6 --- /dev/null +++ b/db/migrate/20170828135939_migrate_user_external_mail_data.rb @@ -0,0 +1,57 @@ +# See http://doc.gitlab.com/ce/development/migration_style_guide.html +# for more information on how to write migrations for GitLab. + +class MigrateUserExternalMailData < ActiveRecord::Migration + include Gitlab::Database::MigrationHelpers + + DOWNTIME = false + + disable_ddl_transaction! + + class User < ActiveRecord::Base + self.table_name = 'users' + + include EachBatch + end + + class UserSyncedAttributesMetadata < ActiveRecord::Base + self.table_name = 'user_synced_attributes_metadata' + + include EachBatch + end + + def up + User.each_batch do |batch| + start_id, end_id = batch.pluck('MIN(id), MAX(id)').first + + execute <<-EOF + INSERT INTO user_synced_attributes_metadata (user_id, provider, email_synced) + SELECT id, email_provider, external_email + FROM users + WHERE external_email = TRUE + AND NOT EXISTS ( + SELECT true + FROM user_synced_attributes_metadata + WHERE user_id = users.id + AND provider = users.email_provider + ) + AND id BETWEEN #{start_id} AND #{end_id} + EOF + end + end + + def down + UserSyncedAttributesMetadata.each_batch do |batch| + start_id, end_id = batch.pluck('MIN(id), MAX(id)').first + + execute <<-EOF + UPDATE users + SET users.email_provider = metadata.provider, users.external_email = metadata.email_synced + FROM user_synced_attributes_metadata as metadata, users + WHERE metadata.email_synced = TRUE + AND metadata.user_id = users.id + AND id BETWEEN #{start_id} AND #{end_id} + EOF + end + end +end |