Rails Cookbook

Appendix A. Migrating to Rails 1.2

This appendix lists features and changes between Rails 1.1.6 and Rails 1.2. Old (1.1.6) code will run under Rails 1.2, but you’ll get warnings for deprecated features. Support for deprecated features will be removed in the next major release of Rails (2.0). The quickest way to find out what needs updating is to run your Rails 1.1.6 application under Rails 1.2, and check your logs for deprecation warnings.

Action Controller

Table A-1. Deprecated controller instance variables

Rails 1.1.6	Rails 1.2
@cookies	cookies
@env	env
@flash	flash
@headers	headers
@params	params
@request	request
@response	response
@session	session

Table A-2. Deprecated controller methods

Rails 1.1.6	Rails 1.2
expire_matched_fragments	expire_fragment
keep_flash	flash.keep
parse_query_parameters	parse_form_encoded_parameters
parse_request_parameters	parse_form_encoded_parameters
redirect_to_path	redirect_to( path )
redirect_to_url	redirect_to( url )
render('#{options}')	render :file => #{options}
url_for(:#{options})	Call url_for with a named route directly

Table A-3. Deprecated assertions

Rails 1.1.6	Rails 1.2
assert_assigned_equal	assert_equal(expected, @response.template.assigns[key.to_s])
assert_cookie_equal	assert(@response.cookies.key?(key))
assert_flash_empty	assert(!@response.has_flash_with_contents?)
assert_flash_equal	assert_equal(expected, @response.flash[key])
assert_flash_exists	assert(@response.has_flash?)
assert_flash_has	assert(@response.has_flash_object?(key))
assert_flash_has_no	assert(!@response.has_flash_object?(key)) ...