55 lines
1.3 KiB
Ruby
55 lines
1.3 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
# == IssuableLink concern
|
|
#
|
|
# Contains common functionality shared between related Issues and related Epics
|
|
#
|
|
# Used by IssueLink, Epic::RelatedEpicLink
|
|
#
|
|
module IssuableLink
|
|
extend ActiveSupport::Concern
|
|
|
|
TYPE_RELATES_TO = 'relates_to'
|
|
TYPE_BLOCKS = 'blocks' ## EE-only. Kept here to be used on link_type enum.
|
|
|
|
class_methods do
|
|
def inverse_link_type(type)
|
|
type
|
|
end
|
|
|
|
def issuable_type
|
|
raise NotImplementedError
|
|
end
|
|
end
|
|
|
|
included do
|
|
validates :source, presence: true
|
|
validates :target, presence: true
|
|
validates :source, uniqueness: { scope: :target_id, message: 'is already related' }
|
|
validate :check_self_relation
|
|
validate :check_opposite_relation
|
|
|
|
enum link_type: { TYPE_RELATES_TO => 0, TYPE_BLOCKS => 1 }
|
|
|
|
private
|
|
|
|
def check_self_relation
|
|
return unless source && target
|
|
|
|
if source == target
|
|
errors.add(:source, 'cannot be related to itself')
|
|
end
|
|
end
|
|
|
|
def check_opposite_relation
|
|
return unless source && target
|
|
|
|
if self.class.base_class.find_by(source: target, target: source)
|
|
errors.add(:source, "is already related to this #{self.class.issuable_type}")
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
IssuableLink.prepend_mod_with('IssuableLink')
|
|
IssuableLink::ClassMethods.prepend_mod_with('IssuableLink::ClassMethods')
|