form_for_tag - difference between that and form_remote_tag and form_for?

What's the difference between form_for_tag and form_for? And between
form_remote_for and form_remote_tag?

What's the difference between form_for_tag and form_for? And between
form_remote_for and form_remote_tag?

form_tag just creates the <form> tag for you, whereas form_for yields
a form builder object, which wraps the object being edited by the
form. The difference between form_remote_for and form_remote_tag is
the same.

Fred