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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to consolidate database storage, standardize their database environment, and,
should the need arise, upgrade to a full multi-node Oracle RAC database
without downtime or disruption
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