diff options
Diffstat (limited to 'db/migrate/20170516153305_migrate_assignee_to_separate_table.rb')
-rw-r--r-- | db/migrate/20170516153305_migrate_assignee_to_separate_table.rb | 83 |
1 files changed, 0 insertions, 83 deletions
diff --git a/db/migrate/20170516153305_migrate_assignee_to_separate_table.rb b/db/migrate/20170516153305_migrate_assignee_to_separate_table.rb deleted file mode 100644 index 0ed45775421..00000000000 --- a/db/migrate/20170516153305_migrate_assignee_to_separate_table.rb +++ /dev/null @@ -1,83 +0,0 @@ -# See http://doc.gitlab.com/ce/development/migration_style_guide.html -# for more information on how to write migrations for GitLab. - -class MigrateAssigneeToSeparateTable < ActiveRecord::Migration[4.2] - include Gitlab::Database::MigrationHelpers - - # Set this constant to true if this migration requires downtime. - DOWNTIME = false - - # When a migration requires downtime you **must** uncomment the following - # constant and define a short and easy to understand explanation as to why the - # migration requires downtime. - # DOWNTIME_REASON = '' - - # When using the methods "add_concurrent_index", "remove_concurrent_index" or - # "add_column_with_default" you must disable the use of transactions - # as these methods can not run in an existing transaction. - # When using "add_concurrent_index" or "remove_concurrent_index" methods make sure - # that either of them is the _only_ method called in the migration, - # any other changes should go in a separate migration. - # This ensures that upon failure _only_ the index creation or removing fails - # and can be retried or reverted easily. - # - # To disable transactions uncomment the following line and remove these - # comments: - # disable_ddl_transaction! - - def up - drop_table(:issue_assignees) if table_exists?(:issue_assignees) - - if Gitlab::Database.mysql? - execute <<-EOF - CREATE TABLE issue_assignees AS - SELECT assignee_id AS user_id, id AS issue_id FROM issues WHERE assignee_id IS NOT NULL - EOF - else - ActiveRecord::Base.transaction do - execute('LOCK TABLE issues IN EXCLUSIVE MODE') - - execute <<-EOF - CREATE TABLE issue_assignees AS - SELECT assignee_id AS user_id, id AS issue_id FROM issues WHERE assignee_id IS NOT NULL - EOF - - execute <<-EOF - CREATE OR REPLACE FUNCTION replicate_assignee_id() - RETURNS trigger AS - $BODY$ - BEGIN - if OLD IS NOT NULL AND OLD.assignee_id IS NOT NULL THEN - DELETE FROM issue_assignees WHERE issue_id = OLD.id; - END IF; - - if NEW.assignee_id IS NOT NULL THEN - INSERT INTO issue_assignees (user_id, issue_id) VALUES (NEW.assignee_id, NEW.id); - END IF; - - RETURN NEW; - END; - $BODY$ - LANGUAGE 'plpgsql' - VOLATILE; - - CREATE TRIGGER replicate_assignee_id - BEFORE INSERT OR UPDATE OF assignee_id - ON issues - FOR EACH ROW EXECUTE PROCEDURE replicate_assignee_id(); - EOF - end - end - end - - def down - drop_table(:issue_assignees) if table_exists?(:issue_assignees) - - if Gitlab::Database.postgresql? - execute <<-EOF - DROP TRIGGER IF EXISTS replicate_assignee_id ON issues; - DROP FUNCTION IF EXISTS replicate_assignee_id(); - EOF - end - end -end |