1 files changed, 29 insertions, 0 deletions
diff --git a/db/post_migrate/20170921101004_normalize_ldap_extern_uids.rb b/db/post_migrate/20170921101004_normalize_ldap_extern_uids.rb
new file mode 100644
index 00000000000..2230bb0e53c
--- /dev/null
+++ b/db/post_migrate/20170921101004_normalize_ldap_extern_uids.rb
@@ -0,0 +1,29 @@
+# See http://doc.gitlab.com/ce/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class NormalizeLdapExternUids < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+  MIGRATION = 'NormalizeLdapExternUidsRange'.freeze
+  DELAY_INTERVAL = 10.seconds
+
+  disable_ddl_transaction!
+
+  class Identity < ActiveRecord::Base
+    include EachBatch
+
+    self.table_name = 'identities'
+  end
+
+  def up
+    ldap_identities = Identity.where("provider like 'ldap%'")
+
+    if ldap_identities.any?
+      queue_background_migration_jobs_by_range_at_intervals(Identity, MIGRATION, DELAY_INTERVAL)
+    end
+  end
+
+  def down
+  end
+end