Permalink
Browse files

Move some serialization stuff out of Base

  • Loading branch information...
1 parent f4853dc commit 6c63f1aa44780c887dd3e52765e86588911c2802 @jonleighton jonleighton committed Nov 30, 2011
@@ -3,7 +3,41 @@ module AttributeMethods
module Serialization
extend ActiveSupport::Concern
+ included do
+ # Returns a hash of all the attributes that have been specified for serialization as
+ # keys and their class restriction as values.
+ class_attribute :serialized_attributes
+ self.serialized_attributes = {}
+ end
+
module ClassMethods
+ # If you have an attribute that needs to be saved to the database as an object, and retrieved as the same object,
+ # then specify the name of that attribute using this method and it will be handled automatically.
+ # The serialization is done through YAML. If +class_name+ is specified, the serialized object must be of that
+ # class on retrieval or SerializationTypeMismatch will be raised.
+ #
+ # ==== Parameters
+ #
+ # * +attr_name+ - The field name that should be serialized.
+ # * +class_name+ - Optional, class name that the object type should be equal to.
+ #
+ # ==== Example
+ # # Serialize a preferences attribute
+ # class User < ActiveRecord::Base
+ # serialize :preferences
+ # end
+ def serialize(attr_name, class_name = Object)
+ coder = if [:load, :dump].all? { |x| class_name.respond_to?(x) }
+ class_name
+ else
+ Coders::YAMLColumn.new(class_name)
+ end
+
+ # merge new serialized attribute and create new hash to ensure that each class in inheritance hierarchy
+ # has its own hash of own serialized attributes
+ self.serialized_attributes = serialized_attributes.merge(attr_name.to_s => coder)
+ end
+
def define_method_attribute(attr_name)
if serialized_attributes.include?(attr_name)
generated_attribute_methods.module_eval(<<-CODE, __FILE__, __LINE__)
@@ -22,6 +56,14 @@ def cacheable_column?(column)
end
end
+ def set_serialized_attributes
+ sattrs = self.class.serialized_attributes
+
+ sattrs.each do |key, coder|
+ @attributes[key] = coder.load @attributes[key] if @attributes.key?(key)
+ end
+ end
+
def type_cast_attribute(column, value)
coder = self.class.serialized_attributes[column.name]
@@ -433,11 +433,6 @@ class Base
class_attribute :default_scopes, :instance_writer => false
self.default_scopes = []
- # Returns a hash of all the attributes that have been specified for serialization as
- # keys and their class restriction as values.
- class_attribute :serialized_attributes
- self.serialized_attributes = {}
-
class_attribute :_attr_readonly, :instance_writer => false
self._attr_readonly = []
@@ -560,33 +555,6 @@ def readonly_attributes
self._attr_readonly
end
- # If you have an attribute that needs to be saved to the database as an object, and retrieved as the same object,
- # then specify the name of that attribute using this method and it will be handled automatically.
- # The serialization is done through YAML. If +class_name+ is specified, the serialized object must be of that
- # class on retrieval or SerializationTypeMismatch will be raised.
- #
- # ==== Parameters
- #
- # * +attr_name+ - The field name that should be serialized.
- # * +class_name+ - Optional, class name that the object type should be equal to.
- #
- # ==== Example
- # # Serialize a preferences attribute
- # class User < ActiveRecord::Base
- # serialize :preferences
- # end
- def serialize(attr_name, class_name = Object)
- coder = if [:load, :dump].all? { |x| class_name.respond_to?(x) }
- class_name
- else
- Coders::YAMLColumn.new(class_name)
- end
-
- # merge new serialized attribute and create new hash to ensure that each class in inheritance hierarchy
- # has its own hash of own serialized attributes
- self.serialized_attributes = serialized_attributes.merge(attr_name.to_s => coder)
- end
-
def deprecated_property_setter(property, value, block) #:nodoc:
if block
ActiveSupport::Deprecation.warn(
@@ -2004,14 +1972,6 @@ def to_ary # :nodoc:
nil
end
- def set_serialized_attributes
- sattrs = self.class.serialized_attributes
-
- sattrs.each do |key, coder|
- @attributes[key] = coder.load @attributes[key] if @attributes.key?(key)
- end
- end
-
# Sets the attribute used for single table inheritance to this class name if this is not the
# ActiveRecord::Base descendant.
# Considering the hierarchy Reply < Message < ActiveRecord::Base, this makes it possible to

0 comments on commit 6c63f1a

Please sign in to comment.