Module: SimpleCan::ClassMethods

Defined in:
lib/simple_can.rb

Instance Method Summary collapse

Instance Method Details

#add_method_to(scope, method) ⇒ Object 



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# File 'lib/simple_can.rb', line 49

def add_method_to(scope, method)
  strategy_set!

  klass = self
  method = method.to_s
  role, name, do_raise = SimpleCan.strategy.roles.reduce(nil) do |acc, r|
    acc || method.match(/^#{r}_(.+(!)|.+)$/)&.captures&.unshift(r)
  end
  return if name.nil?
  scope.send(:define_method, name) do |*args, &blk|
    can = SimpleCan.strategy.test(role, klass.capability)
    if !can && !do_raise.nil?
      raise SimpleCan::Unauthorized, "unauthorized for #{name} with #{role}"
    elsif !can
      if respond_to?("fail_#{name}")
        return send("fail_#{name}")
      else
        return SimpleCan.strategy.fail(role, name)
      end
    else
      return send(method, *args, &blk)
    end
  end
end

#capability ⇒ Object 



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# File 'lib/simple_can.rb', line 79

def capability
  Thread.current[THREAD_VAR]
end

#capability=(role) ⇒ Object 



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# File 'lib/simple_can.rb', line 74

def capability=(role)
  strategy_set!
  Thread.current[THREAD_VAR] = SimpleCan.strategy.to_capability(role)
end

#method_added(method) ⇒ Object 



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# File 'lib/simple_can.rb', line 39

def method_added(method)
  orig_method_added(method)
  add_method_to(self, method)
end

#singleton_method_added(method) ⇒ Object 



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# File 'lib/simple_can.rb', line 44

def singleton_method_added(method)
  orig_singleton_method_added(method)
  add_method_to((class << self; self; end), method)
end

#strategy_set! ⇒ Object 



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# File 'lib/simple_can.rb', line 35

def strategy_set!
  raise "strategy missing" if SimpleCan.strategy.nil?
end

#with_capability(role) ⇒ Object 



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# File 'lib/simple_can.rb', line 83

def with_capability(role)
  self.capability = role
  yield
ensure
  self.capability = nil
end