原文地址:
http://www.slashdotdash.net/arti ... ils-2-upgrade-notes
大概翻译一下..
先编写个rake
lib/tasks/rails.rake
desc "Checks your app and gently warns you if you are using deprecated code."
task :deprecated => :environment do
deprecated = {
'@params' => 'Use params[] instead',
'@session' => 'Use session[] instead',
'@flash' => 'Use flash[] instead',
'@request' => 'Use request[] instead',
'@env' => 'Use env[] instead',
'find_all' => 'Use find(:all) instead',
'find_first' => 'Use find(:first) instead',
'render_partial' => 'Use render :partial instead',
'component' => 'Use of components are frowned upon',
'paginate' => 'The default paginator is slow. Writing your own may be faster',
'start_form_tag' => 'Use form_for instead',
'end_form_tag' => 'Use form_for instead',
':post => true' => 'Use :method => :post instead'
}
deprecated.each do |key, warning|
puts '--> ' + key
output = `cd '#{File.expand_path('app', RAILS_ROOT)}' && grep -n --exclude=*.svn* -r '#{key}' *`
unless output =~ /^$/
puts " !! " + warning + " !!"
puts ' ' + '.' * (warning.length + 6)
puts output
else
puts " Clean! Cheers for you!"
end
puts
end
end
然后检测
rake deprecated
没有错误你就可以升级了,有问题就需要修改了.
文章后边有一些升级需要的操作..自己看吧.
