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module Axlsx
# This module defines some of the more common validating attribute
# accessors that we use in Axlsx
#
# When this module is included in your class you can simply call
#
# string_attr_access :foo
#
# To generate a new, validating set of accessors for foo.
module Accessors
def self.included(base)
base.send :extend, ClassMethods
end
# Defines the class level xxx_attr_accessor methods
module ClassMethods
# Creates one or more string validated attr_accessors
# @param [Array] symbols An array of symbols representing the
# names of the attributes you will add to your class.
def string_attr_accessor(*symbols)
validated_attr_accessor(symbols, 'validate_string')
end
# Creates on or more boolean validated attr_accessors
# @param [Array] symbols An array of symbols representing the
# names of the attributes you will add to your class.
def boolean_attr_accessor(*symbols)
validated_attr_accessor(symbols, 'validate_boolean')
end
# Template for defining validated write accessors
SETTER = "def %s=(value) Axlsx::%s(value); @%s = value; end"
# Creates the reader and writer access methods
# @param [Array] symbols The names of the attributes to create
# @param [String] validator The axlsx validation method to use when
# validating assignation.
# @see lib/axlsx/util/validators.rb
def validated_attr_accessor(symbols, validator)
symbols.each do |symbol|
attr_reader symbol
module_eval(SETTER % [symbol.to_s, validator, symbol.to_s], __FILE__, __LINE__)
end
end
end
end
end
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