#19018: m2m relationships with a through field don't respect types.
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Reporter: justinlilly | Owner: nobody
Type: Bug | Status: new
Component: Database layer | Version: 1.4
(models, ORM) | Resolution:
Severity: Normal | Triage Stage: Accepted
Keywords: | Needs documentation: 0
Has patch: 0 | Patch needs improvement: 0
Needs tests: 0 | UI/UX: 0
Easy pickings: 0 |
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Comment (by ptone):
So looking at this mostly for my own edification.
A higher level place this could be checked would be
`db.models.where.Constraint.process`
otherwise: `db.models.fields.related.RelatedField.get_db_prep_lookup` and
`db.models.fields.related.RelatedField._pk_trace`
seem like the best places to tackle this.
However unless a patch is pretty quick, it seems worth improving the docs,
at least in the interim, to clarify that lookup values for model instances
will always be converted to a simple pk value for database lookups.
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Ticket URL: <https://code.djangoproject.com/ticket/19018#comment:6>
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