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# frozen_string_literal: true
class AddEpicWorkItemType < Gitlab::Database::Migration[2.1]
disable_ddl_transaction!
restrict_gitlab_migration gitlab_schema: :gitlab_main
ISSUE_ENUM_VALUE = 0
EPIC_ENUM_VALUE = 7
EPIC_NAME = 'Epic'
EPIC_WIDGETS = {
'Assignees' => 0,
'Description' => 1,
'Hierarchy' => 2,
'Labels' => 3,
'Notes' => 5,
'Start and due date' => 6,
'Health status' => 7,
'Status' => 11,
'Notifications' => 14,
'Award emoji' => 16
}.freeze
class MigrationWorkItemType < MigrationRecord
self.table_name = 'work_item_types'
end
class MigrationWidgetDefinition < MigrationRecord
self.table_name = 'work_item_widget_definitions'
end
class MigrationHierarchyRestriction < MigrationRecord
self.table_name = 'work_item_hierarchy_restrictions'
end
def up
# New instances will not run this migration and add this type via fixtures
# checking if record exists mostly because migration specs will run all migrations
# and that will conflict with the preloaded base work item types
existing_epic_work_item_type = MigrationWorkItemType.find_by(base_type: EPIC_ENUM_VALUE, namespace_id: nil)
return say('Epic work item type record exists, skipping creation') if existing_epic_work_item_type
new_epic_work_item_type = MigrationWorkItemType.create(
name: EPIC_NAME,
namespace_id: nil,
base_type: EPIC_ENUM_VALUE,
icon_name: 'issue-type-epic'
)
widgets = EPIC_WIDGETS.map do |widget_name, widget_enum_value|
{
work_item_type_id: new_epic_work_item_type.id,
name: widget_name,
widget_type: widget_enum_value
}
end
MigrationWidgetDefinition.upsert_all(
widgets,
unique_by: :index_work_item_widget_definitions_on_default_witype_and_name
)
issue_type = MigrationWorkItemType.find_by(base_type: ISSUE_ENUM_VALUE, namespace_id: nil)
return say('Issue work item type not found, skipping hierarchy restrictions creation') unless issue_type
restrictions = [
{ parent_type_id: new_epic_work_item_type.id, child_type_id: new_epic_work_item_type.id, maximum_depth: 9 },
{ parent_type_id: new_epic_work_item_type.id, child_type_id: issue_type.id, maximum_depth: 1 }
]
MigrationHierarchyRestriction.upsert_all(
restrictions,
unique_by: :index_work_item_hierarchy_restrictions_on_parent_and_child
)
end
def down
# There's the remote possibility that issues could already be
# using this issue type, with a tight foreign constraint.
# Therefore we will not attempt to remove any data.
end
end
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