Rails has no helper for label tags, which are important accessibility/usability features of forms. You shouldn't have to repeat yourself when writing labels for things: currently you need to do:
<% form_for(:post, ...) do |f| %>
<label for="post_title">Title</label>
<%= f.text_field(:title) %>
<label for="post_body">Body</label>
<%= f.text_area(:body) %>
<% end %>
Whereas I'd rather not repeat myself over and over...
<% form_for(:post, ...) do |f| %>
<%= f.label(:title) %>
<%= f.text_field(:title) %>
<%= f.label(:body) %>
<%= f.text_area(:body) %>
<% end %>
This patch lets you do this by adding a label method to ActionView::Helpers::FormHelper and a to_label_tag method to ActionView::Helpers::InstanceTag. You can also use the FormBuilder style as shown above. Documentation and tests (included in the patch) explain what label does more fully.
