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Contents
# Most of this code is from the preferences plugin available at
# http://github.com/pluginaweek/preferences/tree/master
#
module Spree
# Adds support for defining preferences on ActiveRecord models.
module Preferences
# Represents the definition of a preference for a particular model
class PreferenceDefinition
def initialize(attribute, *args) #:nodoc:
options = args.extract_options!
options.assert_valid_keys(:default)
@type = args.first ? args.first.to_s : 'boolean'
# Create a column that will be responsible for typecasting
@column = ActiveRecord::ConnectionAdapters::Column.new(attribute.to_s, options[:default], @type == 'any' ? nil : @type)
end
# The attribute which is being preferenced
def attribute
@column.name
end
# The default value to use for the preference in case none have been
# previously defined
def default_value
@column.default
end
# Typecasts the value based on the type of preference that was defined
def type_cast(value)
if @type == 'any'
value
else
@column.type_cast(value)
end
end
# Typecasts the value to true/false depending on the type of preference
def query(value)
unless value = type_cast(value)
false
else
if @column.number?
!value.zero?
else
!value.blank?
end
end
end
end
end
end
Version data entries
29 entries across 29 versions & 3 rubygems