discourse/lib/guardian/ensure_magic.rb

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# Support for ensure_{blah}! methods.
module EnsureMagic
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def method_missing(method, *args, &block)
if method.to_s =~ /^ensure_(.*)\!$/
can_method = :"#{Regexp.last_match[1]}?"
if respond_to?(can_method)
raise Discourse::InvalidAccess.new("#{can_method} failed") unless send(can_method, *args, &block)
return
end
end
super.method_missing(method, *args, &block)
end
# Make sure we can see the object. Will raise a NotFound if it's nil
def ensure_can_see!(obj)
raise Discourse::InvalidAccess.new("Can't see #{obj}") unless can_see?(obj)
end
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end