Rails 2.0 deprecations

The Rails core team is cleaning up. That’s obviously a good thing, however it does leave us facing a kabillion deprecation warnings when running tests and whatnot.

Unfortunately the official deprecations page appears to have been thrown together quickly after someone noticed that Rails 1.2 had been pushed out without anyone finishing the page that all deprecation warnings were referring to.

So what does a smart Rails developer who wants to be ready for Rails 2.0 when that time comes around do? She reads on…

end_form_tag is deprecated

<%= start_form_tag %>
  ...stuff...
<%= end_form_tag %>

<% form_tag do %>
  ...stuff...
<% end %>

<%= form_remote_tag %>
  ...stuff...
<%= end_form_tag %>

<% form_remote_tag do %>
  ...stuff...
<% end %>

Object transactions are deprecated

Model.transaction(foo) do
  ...stuff...
end

Model.transaction do
  ...stuff...
end

server_settings has been renamed smtp_settings

ActionMailer::Base.server_settings = { 
  :address  => 'my.smtp.srv'
}

ActionMailer::Base.smtp_settings = {
  :address  => 'my.smtp.srv'
}

start_form_tag is deprecated

<%= start_form_tag %>
  ...stuff...
<%= end_form_tag %>

<% form_tag do %>
  ...stuff...
<% end %>

You called count([“field = ?”, value], nil)

model_or_association.count(['field = ?', value])

model_or_association.count(:conditions => ['field = ?', value])

You’ve called image_path with a source that doesn’t include an extension

<%= image_tag 'foo' %>

<%= image_tag 'foo.png' %>

“But this isn’t complete either!”

Yeah, I know, thanks for pointing it out, though. The above messages are basically just the ones I have encountered in my projects. I will continue to update this page as I encounter more. Or even better, the Rails team could grab the above HTML and merge it with the stuff already on rubyonrails.org, making for what might just be a usable deprecation page.

Until then, hopefully this page will help out a few people.

Comments and Trackbacks

There is also this:

http://wiki.rubyonrails.com/rails/pages/Deprecated+Patterns

Thanks for posting the above examples, I've been going through my application and trying to update everything.