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module Virtus
class Attribute
# Boolean attribute allows true or false values to be set
# Additionally it adds boolean reader method, like "admin?"
#
# @example
# class Post
# include Virtus
#
# attribute :published, Boolean
# end
#
# post = Post.new(:published => false)
# post.published? # => false
#
class Boolean < Attribute
primitive TrueClass
# @api private
def self.build_type(*)
Axiom::Types::Boolean
end
# Returns if the given value is either true or false
#
# @example
# boolean = Virtus::Attribute::Boolean.new(:bool)
# boolean.value_coerced?(true) # => true
# boolean.value_coerced?(false) # => true
# boolean.value_coerced?(1) # => false
# boolean.value_coerced?('true') # => false
#
# @return [Boolean]
#
# @api public
def value_coerced?(value)
value.equal?(true) || value.equal?(false)
end
# Creates an attribute reader method as a query
#
# @param [Module] mod
#
# @return [undefined]
#
# @api private
def define_accessor_methods(attribute_set)
super
attribute_set.define_reader_method(self, "#{name}?", options[:reader])
end
end # class Boolean
end # class Attribute
end # module Virtus
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