#25687: Document how backends should monkey patch expressions
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Reporter: jarshwah | Owner:
Type: | kristofclaes
Cleanup/optimization | Status: assigned
Component: Documentation | Version: master
Severity: Normal | Resolution:
Keywords: | Triage Stage: Accepted
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 1 | UI/UX: 0
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Comment (by dedsm):
wouldn't it be better if the BaseExpression had a public api for this
instead of relying on third parties monkey patching by design?
Something like:
{{{
from django.db.models import Sum
def backend_sum(self, compiler, connection):
#do stuff
Sum.add_backend('firebird', backend_sum)
}}}
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Ticket URL: <https://code.djangoproject.com/ticket/25687#comment:4>
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