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Contents
module Draper
class Security
def initialize
@methods = []
end
def denies(*methods)
apply_strategy :denies
add_methods methods
end
def denies_all
apply_strategy :denies_all
end
def allows(*methods)
apply_strategy :allows
add_methods methods
end
def allow?(method)
case strategy
when :allows
methods.include?(method)
when :denies
!methods.include?(method)
when :denies_all
false
when nil
true
end
end
private
attr_reader :methods, :strategy
def apply_strategy(new_strategy)
raise ArgumentError, "Use only one of 'allows', 'denies', or 'denies_all'." if strategy && strategy != new_strategy
@strategy = new_strategy
end
def add_methods(new_methods)
raise ArgumentError, "Specify at least one method when using #{strategy}" if new_methods.empty?
@methods += new_methods.map(&:to_sym)
end
end
end
Version data entries
6 entries across 6 versions & 1 rubygems