45 lines
1.2 KiB
Ruby
45 lines
1.2 KiB
Ruby
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module DeclarativePolicy
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# The return value of a rule { ... } declaration.
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# Can call back to register rules with the containing
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# Policy class (context_class here). See Base.rule
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#
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# Note that the #policy method just performs an #instance_eval,
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# which is useful for multiple #enable or #prevent callse.
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#
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# Also provides a #method_missing proxy to the context
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# class's class methods, so that helper methods can be
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# defined and used in a #policy { ... } block.
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class PolicyDsl
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def initialize(context_class, rule)
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@context_class = context_class
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@rule = rule
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end
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def policy(&b)
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instance_eval(&b)
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end
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def enable(*abilities)
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@context_class.enable_when(abilities, @rule)
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end
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def prevent(*abilities)
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@context_class.prevent_when(abilities, @rule)
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end
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def prevent_all
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@context_class.prevent_all_when(@rule)
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end
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def method_missing(m, *a, &b)
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return super unless @context_class.respond_to?(m)
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@context_class.__send__(m, *a, &b) # rubocop:disable GitlabSecurity/PublicSend
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end
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def respond_to_missing?(m)
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@context_class.respond_to?(m) || super
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end
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end
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end
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