This implements the ActiveModel::Serializer object. Includes code, tests, generators and guides.
From José and Yehuda with love.
Conflicts:
railties/CHANGELOG.md
The following constants were renamed:
ActiveModel::Serialization => ActiveModel::Serializable
ActiveModel::Serializers::JSON => ActiveModel::Serializable::JSON
ActiveModel::Serializers::Xml => ActiveModel::Serializable::XML
The main motivation for such a change is that `ActiveModel::Serializers::JSON`
was not actually a serializer, but a module that when included allows the target to be serializable to JSON.
With such changes, we were able to clean up the namespace to add true serializers as the ArraySerializer.
When you've got an AR Model and you override the `as_json` method,
you should be able to add default options to the renderer, like this:
class User < ActiveRecord::Base
def as_json(options = {})
super(options.merge(:except => [:password_digest]))
end
end
This was not possible before this commit. See the added test case.
Previously, it would use send() to get the attribute. In Active
Resource, this would rely on hitting method missing. If a method with
the same name was defined further up the ancestor chain, that method
would wrongly be called.
This change fixes test_to_xml_with_private_method_name_as_attribute in
activeresource/test/cases/base_test.rb, which was broken after
51bef9d8fb, because that change made
to_xml use serializable_hash.
There's no harm in generating a method name that's already defined on
the host class, since we're generating the attribute methods in a module
that gets included. In fact, this is desirable as it allows the host
class to call super.
Check respond_to_without_attributes? in method_missing. If there is any
method that responds (even private), let super handle it and raise
NoMethodError if necessary.
This means that attribute methods which don't exist will get generated
when define_attribute_methods is called, so we don't have to use hacks
like `attribute_method_suffix ''`.
In order to deliver debug information to dev team
instead of display error message to end user
Implemented strict validation concept
that suppose to define validation that always raise exception when fails
