#25687: Document how backends should monkey patch expressions
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Reporter: jarshwah | Owner: nobody
Type: Uncategorized | Status: new
Component: Documentation | Version: master
Severity: Normal | Keywords:
Triage Stage: Accepted | Has patch: 0
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
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@dedsm at djangounderthehood brought up that the docs do not currently
contain information for how 3rd party backends should be supporting
expressions by monkey patching. Let's fix that.
Firebird backend (with connection.vendor == 'firebird') would change Sum
like this:
{{{
from django.db.models import Sum
def backend_sum(self, compiler, connection)
# do stuff
Sum.as_firebird = backend_sum
}}}
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Ticket URL: <https://code.djangoproject.com/ticket/25687>
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