71 lines
1.7 KiB
Ruby
71 lines
1.7 KiB
Ruby
# frozen_string_literal: true
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module Gitlab
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module View
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module Presenter
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CannotOverrideMethodError = Class.new(StandardError)
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module Base
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extend ActiveSupport::Concern
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include Gitlab::Routing
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include Gitlab::Allowable
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# Presenters should always access the subject through an explicit getter defined with
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# `presents ..., as:`, the `__subject__` method is only intended for internal use.
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def __subject__
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@subject
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end
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def can?(user, action, overridden_subject = nil)
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super(user, action, overridden_subject || __subject__)
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end
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# delegate all #can? queries to the subject
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def declarative_policy_delegate
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__subject__
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end
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def present(**attributes)
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self
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end
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def url_builder
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Gitlab::UrlBuilder.instance
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end
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def is_a?(type)
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super || __subject__.is_a?(type)
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end
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def web_url
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url_builder.build(__subject__)
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end
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def web_path
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url_builder.build(__subject__, only_path: true)
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end
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class_methods do
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def presenter?
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true
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end
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def presents(*target_classes, as: nil)
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if target_classes.any? { |k| k.is_a?(Symbol) }
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raise ArgumentError, "Unsupported target class type: #{target_classes}."
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end
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if self < ::Gitlab::View::Presenter::Delegated
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target_classes.each { |k| delegator_target(k) }
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elsif self < ::Gitlab::View::Presenter::Simple
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# no-op
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end
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define_method(as) { __subject__ } if as
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end
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end
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end
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end
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end
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end
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