42 lines
976 B
Ruby
42 lines
976 B
Ruby
# 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
|