[Zope3-Users] World cookery & DynamicSequenceWidget again

[Rob J Goedman]

Hi,

In trying to work through the PvW book, I get stuck in chapter 7, 2nd  
part, where the javascript/widgets are being introduced. After  
switching to SequenceWidget, I get to the same behavior/error as in  
below email but have not been able to find a reply on this email.

I've tried both  Zope-3.2.2 and Zope-3.3.0 with Python 2.4.3 on Mac  
OS 10.4.8. I can't get  Zope3.x.x to build/work with Python-2.5.

1) Zope catches an exception in zope.app.publish. Right now I am  
ignoring this.
	( Object: <zope.app.folder.folder.Folder object at 0x2a381b0>, name:  
u'favicon.ico' )

2) The errata for the PvW book does suggest a fix (for Zope-3.2 at  
least, defining def __init__), but that does not help.

Thanks a lot,
Rob

Re: [Zope3-Users] worldcookery.browser.widget.DynamicSequenceWidget
Marco Mariani
Tue, 21 Mar 2006 02:57:47 -0800

Ulrich P. Klein wrote:
How should I modify the custom widget in the recipe examples to make it
work with 3.2.0 ?
As it is, the program does not work from chapter 7 onward

I get this on zope.app.form.browser.SimpleInputWidget at every  
attempt to
display the widget:

     instance = self._widget_factory(*args)
TypeError: __init__() takes exactly 4 arguments (3 given)


--- browser/widget.py.orig 2004-07-10 17:59:36.000000000 +0200 +++  
browser/widget.py 2006-03-19 18:28:16.000000000 +0100 @@ -1,9 +1,9 @@  
from zope.app import zapi from zope.app.form.interfaces import  
IInputWidget -from zope.app.form.browser.widget import  
SimpleInputWidget +from zope.app.form.browser.sequencewidget import  
SequenceWidget from zope.app.pagetemplate.viewpagetemplatefile import  
ViewPageTemplateFile -class DynamicSequenceWidget(SimpleInputWidget):  
+class DynamicSequenceWidget(SequenceWidget): """Widget for (simple)  
sequences that does not require the form to be reloaded for every  
change."""

Close, but it still doesn't work.
The widget is displayed and works on the client, but I am unable to  
insert ingredients. Every time I click 'add' on the form, the  
ingredients list comes back empty and the recipe is refused (an error  
occured; there are 1 input errors).
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