[Zope] Detecting which form button is pushed?

[Hung Jung Lu]

petru paler <ppetr-@coltronix.com> wrote:
><dtml-if "_.hasattr(REQUEST, 'create')">
>     (user pushed create)
><dtml-elif "_.hasattr(REQUEST, 'edit')">
>     (user pushed edit)
><dtml-else "_.hasattr(REQUEST, 'delete')">
>     (user pushed delete)
></dtml-if>

-------------------

I usually use:
  <dtml-if "REQUEST.has_key('create')">
  ...
  <dtml-if "REQUEST.has_key('edit')">
  ...
  <dtml-if "REQUEST.has_key('delete')">
  ...
  </dtml-if>

-------------------

That works fine is the form does not need different
action http's. When the form needs different action
http's, it's more complicated. I don't have a good way
of doing it except by using a hidden field in combination
with a button and javascript. And Netscape is quite
primitive and unforgiving when it comes to javascripts.

<script "javascript1.1">
function submitCreate() {
    document.myForm.action = 'http://.../create';
    document.myForm.myActionType = 'create';
    ...
    if (everything_is_fine) {
        document.myForm.submit();
        return true;
    } else {
        alert('problems found.');
        return false;
    }
}
function submitEdit() {...}
function submitDelete() {...}
</script>

<form name="myForm" method="post">
...
<input type="hidden" name="myActionType">
<input type="button" onclick="submitCreate()">
<input type="button" onclick="submitEdit()">
<input type="button" onclick="submitDelete()">
</form>

And on the server side:

  <dtml-if "REQUEST.has_key('myActionType') and
            REQUEST.myActionType == 'create'">
  ...

If anyone else has a better approach, please let
me know. Thanks.

Hung Jung

______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com