diff options
Diffstat (limited to 'db/post_migrate/20221118103352_add_cascade_delete_fk_on_issues_namespace_id.rb')
-rw-r--r-- | db/post_migrate/20221118103352_add_cascade_delete_fk_on_issues_namespace_id.rb | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/db/post_migrate/20221118103352_add_cascade_delete_fk_on_issues_namespace_id.rb b/db/post_migrate/20221118103352_add_cascade_delete_fk_on_issues_namespace_id.rb new file mode 100644 index 00000000000..094ac3abe0f --- /dev/null +++ b/db/post_migrate/20221118103352_add_cascade_delete_fk_on_issues_namespace_id.rb @@ -0,0 +1,41 @@ +# frozen_string_literal: true + +class AddCascadeDeleteFkOnIssuesNamespaceId < Gitlab::Database::Migration[2.0] + disable_ddl_transaction! + + TARGET_COLUMN = :namespace_id + + def up + # add the new FK before removing the old one + add_concurrent_foreign_key( + :issues, + :namespaces, + column: TARGET_COLUMN, + name: fk_name("#{TARGET_COLUMN}_new"), + on_delete: :cascade + ) + + with_lock_retries do + remove_foreign_key_if_exists(:issues, column: TARGET_COLUMN, name: fk_name(TARGET_COLUMN)) + end + end + + def down + add_concurrent_foreign_key( + :issues, + :namespaces, + column: TARGET_COLUMN, + name: fk_name(TARGET_COLUMN), + on_delete: :nullify + ) + + with_lock_retries do + remove_foreign_key_if_exists(:issues, column: TARGET_COLUMN, name: fk_name("#{TARGET_COLUMN}_new")) + end + end + + def fk_name(column_name) + # generate a FK name + concurrent_foreign_key_name(:issues, column_name) + end +end |