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[1.10.x] Fixed #26985 -- Doc'd that ForeignKey.to_field reference must be unique.

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Backport of 9da45ff352 from master
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Jonatas CD
2016-11-14 10:18:41 +01:00
committed by Tim Graham
parent 65cdded2c9
commit af0f01558b
2 changed files with 3 additions and 1 deletions
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docs/ref/models/fields.txt
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@@ -1426,7 +1426,8 @@ The possible values for :attr:`~ForeignKey.on_delete` are found in
.. attribute:: ForeignKey.to_field
The field on the related object that the relation is to. By default, Django
uses the primary key of the related object.
uses the primary key of the related object. If you reference a different
field, that field must have ``unique=True``.
.. attribute:: ForeignKey.db_constraint