I've been seeing intermittent _formID_ KeyErrors with FunFormKit of the form:
Traceback (most recent call last): File "WebKit/Application.py", line 415, in dispatchRequest File "WebKit/Application.py", line 567, in handleGoodURL File "WebKit/Application.py", line 776, in respond File "WebKit/Transaction.py", line 105, in respond File "WebKit/HTTPServlet.py", line 38, in respond File "/opt/Mefa/SiteLib/Page.py", line 113, in respondToPost self._respond(transaction) File "/opt/Mefa/SiteLib/Page.py", line 134, in _respond self.mainResponse() File "/opt/Mefa/Contexts/Home/Login.py", line 50, in mainResponse formProcessed, data = self.processForm() File "/opt/Webware/FunFormKit/Form.py", line 127, in processForm currentForm = self._formDefinitions[req.field('_formID_')] KeyError: form1
I've been trying to figure out when these are triggered, and how best to deal with them.
I know for example, that if I have a form on display, then restart the appserver, then try to submit the form, the error will pop up. It also pops up if the browser's back and forward navigation buttons are used prior to form submission. So, the issue seems to be related to the browser caching pages, as well as the fact that the formID was autogenerated so that between restarts, the same form might have different formIDs.
The problem is you are using mutable forms, and the forms are stored in a module global and keyed to these dynamic names (like "form1"). When you restart the AppServer there may be people with reference to forms that no longer exist.
Ideally these should be stored in some other persistent form. It would be nice if the session mechanism could be reused in some global fashion, and this stuff could be stored in there. (There's several places where global persistent data would be nice, e.g., randomly generated keys used to sign hidden fields)
Ian
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