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[2.2.x] Fixed UniqueConstraint example in ref/models/constraints.txt. 

Backport of f8f0f92ed9 from master
This commit is contained in:
Mariusz Felisiak 2019-04-24 12:58:35 +02:00
parent 46416554f3
commit 158cfebe87
1 changed files with 4 additions and 1 deletions
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docs/ref/models/constraints.txt
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@ -78,7 +78,10 @@ The name of the constraint.
A :class:`Q` object that specifies the condition you want the constraint to
enforce.
For example, ``UniqueConstraint(fields=['user'], condition=Q(status='DRAFT')``
For example::
UniqueConstraint(fields=['user'], condition=Q(status='DRAFT'), name='unique_draft_user')
ensures that each user only has one draft.
These conditions have the same database restrictions as