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Versions: 33
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Stored size: 1.29 KB
Contents
module ActiveGraph
module ClassArguments
class << self
INVALID_CLASS_ARGUMENT_ERROR = 'option must be String, Symbol, false, nil, or an Array of Symbols/Strings'
def valid_argument?(class_argument)
[NilClass, String, Symbol, FalseClass].include?(class_argument.class) ||
(class_argument.is_a?(Array) && class_argument.all? { |c| [Symbol, String].include?(c.class) })
end
def validate_argument!(class_argument, context)
return if valid_argument?(class_argument)
fail ArgumentError, "#{context} #{INVALID_CLASS_ARGUMENT_ERROR} (was #{class_argument.inspect})"
end
def node_model?(class_constant)
class_constant.included_modules.include?(ActiveGraph::Node)
end
def constantize_argument(class_argument)
case class_argument
when 'any', :any, false, nil
nil
when Array
class_argument.map(&method(:constantize_argument))
else
class_argument.to_s.constantize.tap do |class_constant|
if !node_model?(class_constant)
fail ArgumentError, "#{class_constant} is not an Node model"
end
end
end
rescue NameError
raise ArgumentError, "Could not find class: #{class_argument}"
end
end
end
end
Version data entries
33 entries across 33 versions & 1 rubygems