[Grok-dev] sources in forms - multiple select

[Jeroen Michiel]

That' very odd:
if this works
classesOfCompounds = schema.Choice(source=ClassesOfCompoundsSource(),
title=u'Classes of compounds')

this should also work!
classesOfCompounds = schema.List(title=u'Classes of compounds', value_type =
schema.Choice(source=ClassesOfCompoundsSource()))

maybe try with adding default=[], like this:

classesOfCompounds = schema.List(title=u'Classes of compounds', default=[],
value_type = schema.Choice(source=ClassesOfCompoundsSource()))

I can't think of anything else, really...


Thomas Bellembois-3 wrote:
> 
> a small error in my code:
> 
> # THIS DOES NOT WORK
> classesOfCompounds = schema.List(title=u'Classes of compounds', 
> value_type = schema.Choice(source=ClassesOfCompoundsSource()))
> 
> TypeError: argument of type 'ClassOfCompounds' is not iterable
> 
> Thomas Bellembois wrote:
>>
>> On Thu, Aug 20, 2009 at 11:54 AM, Jeroen Michiel <jmichiel at yahoo.com 
>> <mailto:jmichiel at yahoo.com>> wrote:
>>
>>
>>
>>     Thomas Bellembois-3 wrote:
>>     >
>>     > Still the same error:
>>     > argument of type "ClassOfCompounds" is not  iterable
>>     >
>>
>>     That's odd...
>>     Can you post the relevant parts of your code, and perhaps a
>>     traceback of the
>>     error?
>>     --
>>
>> Yes, thanks for your help.
>>
>> A part of my interface.py:
>> class ClassesOfCompoundsSource(BasicSourceFactory):
>>    
>>     def getValues(self):
>>         return grok.getSite().classOfCompoundsList()
>>    
>>     def getTitle(self, value):
>>         return value.name <http://value.name>
>>    
>> class IMolecule(interface.Interface):
>>     cas_number = schema.TextLine(title=u"CAS number")
>>     ce_number = schema.TextLine(title=u"CE number")
>>     remark = schema.TextLine(title=u"Remark", required = False)
>>    
>>     # THIS WORKS
>>     classesOfCompounds = 
>> schema.Choice(source=ClassesOfCompoundsSource(), title=u'Classes of 
>> compounds')
>>     # THIS DOES NOT WORKS
>>     #classesOfCompounds = schema.List(title=u'Classes of compounds', 
>> value_type = schema.Choice(['1', '2', '3']))
>>
> 
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