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Contents
module Virtus
class Attribute
# Bolean 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 < Object
primitive TrueClass
coercion_method :to_boolean
# Returns if the given value is either true or false
#
# @example
# Virtus::Attribute::Boolean.primitive?(true) # => true
# Virtus::Attribute::Boolean.primitive?(false) # => true
# Virtus::Attribute::Boolean.primitive?(1) # => false
# Virtus::Attribute::Boolean.primitive?('true') # => false
#
# @return [Boolean]
#
# @api public
def self.primitive?(value)
value.equal?(true) || value.equal?(false)
end
# Creates standard and boolean attribute reader methods
#
# @param [Module] mod
#
# @return [self]
#
# @api private
def define_reader_method(mod)
super
reader_method_name = "#{name}?"
attribute = self
mod.send(:define_method, reader_method_name) { attribute.get(self) }
mod.send(reader_visibility, reader_method_name)
self
end
end # class Boolean
end # class Attribute
end # module Virtus
Version data entries
5 entries across 5 versions & 1 rubygems