Difference between form_for and form_tag?

Question

I used this gem in my application, but I\'m not sure the difference between the different implementation options for the gem:

• form_for
• form_tag with b

Answer 1

As far as I know there is only one simple difference. form_tag without a block will only generate a html element for you. When you use form with a a block it will also create the form closing tag .

In example:

<% form_tag("/comments") %>

will result in

Where

<%= form_tag("/comments") do %>
  <%= submit_tag %>
<% end %>

will generate