[Zope3-dev] Problem with content object attributes and DublinCore

[Jim Fulton]

Nicholas Wieland wrote:
> Hi again, I have a problem with a content object, when I try to add it
> it returns a system error.
> 
> #category.py
> class Category (Folder):
> 
>   implements (ICategory, ISiteContained, IProductContainer, ILocation)
> 
>   def setTitle (self, title):
>     dc = IZopeDublinCore (self)
>     dc.title = title
> 
>   def getTitle (self):
>     dc = IZopeDublinCore (self
>     return dc.title
> 
>   title = property (setTitle, getTitle)
> 
> #browser/configure.zcml
> <addform
>   label="Add Category"
>   name="addCategory.html"
>   schema=".interfaces.IProductCategory"
>   content_factory=".product_category.Category"
>   fields="title"
>   permission="zope.ManageContent"
>   />
> 
> The error is
> 
>   File "/usr/home/nicholas/Zope/src/zope/schema/_bootstrapfields.py",
> line 180, in set
>     setattr(object, self.__name__, value)
> TypeError: getTitle() takes exactly 1 argument (2 given)
> 
> If I don't use DC but a normal title = u'' it works as expected.
> I'm unable to track the problem.

Pay attention to the exception. getTitle is being called when setting
an attribute.  This should make you realize that maybe you set up the
property incorrectly, which is exactly what you did.

Jim

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Jim Fulton           mailto:jim at zope.com       Python Powered!
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