I've come up with a solution to my own question below, but if anyone has any better ideas, I'd love to hear them.

On 31/12/2010 12:45 AM, Timothy W. Grove wrote:
Here are the bare-bones of two classes which are related through a many-to-many relationship:
class SignEntry(SQLObject):
    components = RelatedJoin("Component")

class Component(SQLObject):
   code = StringCol(default="", unique=True)
   sign_entries = RelatedJoin("SignEntry")

With 'se' representing a particular 'SignEntry' object, the code 'se.components' reveals the internals of that object:
[<Component 7 code='48'>, <Component 8 code='24'>, <Component 8 code='24'>]

Now, I wish to remove just one <Component 8 code='24'> from this object, but 'se.removeComponent(8)' removes both. Is there a (simple) way to achieve what I wish?

Well, I've thought of a 'simple' way to accomplish this, but I'm not sure I'm altogether comfortable with it. First, I determine how many of the same 'components' there are in the 'sign entry'. If there are more than one, I delete them all and then add back in the others I want to remain. That is a good enough solution for this year. Bring on 2011 !!!


I'm using sqlobject-0.13.0-py2.7 on Windows 7.

Thanks in advance for any advice.

Best regards (and HAPPY NEW YEAR - ALMOST!),
Tim Grove


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