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Merge pull request #24 from Adman65/polymorphic-associations

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Polymorphic associations
This commit is contained in:
José Valim
2012-01-03 03:40:56 -08:00
parent 87d2d77ac8 09bb41fbdb
commit 1470e3a3f4
2 changed files with 118 additions and 2 deletions
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31
lib/active_model/serializer.rb
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@@ -80,6 +80,10 @@ module ActiveModel
options[:key] || name
end
def polymorphic?
options[:polymorphic]
end
protected
def find_serializable(object, scope, context, options)
@@ -115,11 +119,34 @@ module ActiveModel
class HasOne < Config #:nodoc:
def serialize(object, scope, context, options)
{ key => object && find_serializable(object, scope, context, options).as_json(:root => false) }
if polymorphic?
if object
find_serializable(object, scope, context, options).as_json(:root => polymorphic_key(object))
else
{}
end
else
{ key => object && find_serializable(object, scope, context, options).as_json(:root => false) }
end
end
def serialize_ids(object, scope)
{ key => object && object.read_attribute_for_serialization(:id) }
if polymorphic? && object
{
polymorphic_key(object) => object.read_attribute_for_serialization(:id),
}
elsif polymorphic? && !object
{ }
elsif object
{ key => object.read_attribute_for_serialization(:id) }
else
{ key => nil }
end
end
def polymorphic_key(object)
object.class.to_s.demodulize.underscore.to_sym
end
end
end