[Zope-PTK] Adding 'Go back where you came from' to Membership

[Michael Bernstein]

I've figured out (by examining the zope.org source) how to implement 'Go
back where you came from' functionality in Membership:

Change the loginForm method so the first <dtml-if> (up to the
<dtml-else>) reads like so:

<dtml-if "AUTHENTICATED_USER.has_role(['Member','Manager'])">
<dtml-let urlRedirect="'loggedIn?came_from='+_['came_from']" >
<dtml-call "RESPONSE.redirect(_['urlRedirect'])">
</dtml-let>
<dtml-else>

and add the following code inside the form in both loginForm and
logoutForm:

 <dtml-if came_from>
  <input type="hidden" name="came_from" value="&dtml-came_from;">
 </dtml-if>

Then you need to add the following block to loggedIn and logoutForm
after the 'success' message:

<dtml-if came_from>
<p>You can go back where you <a href="&dtml-came_from;">came from</a>.
</dtml-if>

After you make these changes, log in links should take the form:

<A HREF="/acl_users/loginForm?came_from=&dtml-URL0;">Log in</A>

And log out out links should take the form:

<a href="/acl_users/logoutForm?came_from=&dtml-URL0;">Log out</a>

HTH, This Works For Me(tm), YMMV. Tests and enhancements are welcome.

Michael Bernstein.