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__call__ folderish Zope objects
folderish, __call__, folder, non-folderish, index_html, ofs.folder, __str__
19th of December 2004
I ran into trouble with a Zope class that inherits from OFS.Folder.Folder (the classic Folder class). My class is a bit special since it's acting both as a non-folderish document like object but still needs to contain other objects such as images and file attachments. The class had a method called index_html which looked something like this:
""" return something"""
return self.something
The problem was that if I create one of these instances with the id index_html it simply could not be viewed.
What I had to do was to use the __call__() function on my class. That is apparently how Zope figures out which document to show/call. Now my class had this instead:
""" wrap view() """
return self.view(self.REQUEST, **kw)
def view(self, REQUEST, **kw):
""" return something"""
return self.something
That took care of my problems and now the parent instances could instantly view my document like instances called index_html.
So, for the next time; use __call__() instead of index_html().
