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Contents
module Superstore
module AttributeMethods
module Dirty
extend ActiveSupport::Concern
include ActiveModel::Dirty
# Attempts to +save+ the record and clears changed attributes if successful.
def save(*) #:nodoc:
if status = super
@previously_changed = changes
@changed_attributes = {}
end
status
end
# <tt>reload</tt> the record and clears changed attributes.
def reload
super.tap do
@previously_changed.try :clear
@changed_attributes.try :clear
end
end
def unapplied_changes
result = {}
changed_attributes.each_key { |attr| result[attr] = read_attribute(attr) }
result
end
def old_attribute_value(attr)
if attribute_changed?(attr)
changed_attributes[attr]
else
read_attribute attr
end
end
def write_attribute(name, value)
name = name.to_s
old = old_attribute_value(name)
super
if old == read_attribute(name)
changed_attributes.delete(name)
else
changed_attributes[name] = old
end
end
end
end
end
Version data entries
13 entries across 13 versions & 1 rubygems