gitlab-org--gitlab-foss/app/models/concerns/referable.rb

91 lines
2.1 KiB
Ruby

# frozen_string_literal: true
# == Referable concern
#
# Contains functionality related to making a model referable in Markdown, such
# as "#1", "!2", "~3", etc.
module Referable
extend ActiveSupport::Concern
# Returns the String necessary to reference this object in Markdown
#
# from - Referring parent object
#
# This should be overridden by the including class.
#
# Examples:
#
# Issue.first.to_reference # => "#1"
# Issue.last.to_reference(other_project) # => "cross-project#1"
#
# Returns a String
def to_reference(_from = nil, full:)
''
end
def reference_link_text(from = nil)
to_reference(from)
end
included do
alias_method :non_referable_inspect, :inspect
alias_method :inspect, :referable_inspect
end
def referable_inspect
if respond_to?(:id)
"#<#{self.class.name} id:#{id} #{to_reference(full: true)}>"
else
"#<#{self.class.name} #{to_reference(full: true)}>"
end
end
class_methods do
# The character that prefixes the actual reference identifier
#
# This should be overridden by the including class.
#
# Examples:
#
# Issue.reference_prefix # => '#'
# MergeRequest.reference_prefix # => '!'
#
# Returns a String
def reference_prefix
''
end
# Regexp pattern used to match references to this object
#
# This must be overridden by the including class.
#
# Returns a Regexp
def reference_pattern
raise NotImplementedError, "#{self} does not implement #{__method__}"
end
def reference_valid?(reference)
true
end
def link_reference_pattern(route, pattern)
%r{
(?<url>
#{Regexp.escape(Gitlab.config.gitlab.url)}
\/#{Project.reference_pattern}
(?:\/\-)?
\/#{route.is_a?(Regexp) ? route : Regexp.escape(route)}
\/#{pattern}
(?<path>
(\/[a-z0-9_=-]+)*
)?
(?<query>
\?[a-z0-9_=-]+
(&[a-z0-9_=-]+)*
)?
(?<anchor>\#[a-z0-9_-]+)?
)
}x
end
end
end