diff options
Diffstat (limited to 'docs/ref/models')
| -rw-r--r-- | docs/ref/models/fields.txt | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/docs/ref/models/fields.txt b/docs/ref/models/fields.txt index 52cf0b8286..c45688184d 100644 --- a/docs/ref/models/fields.txt +++ b/docs/ref/models/fields.txt @@ -2030,13 +2030,6 @@ that control how the relationship functions. .. note:: - If you don't want multiple associations between the same instances, add - a :class:`~django.db.models.UniqueConstraint` including the from and to - fields. Django's automatically generated many-to-many tables include - such a constraint. - - .. note:: - Recursive relationships using an intermediary model can't determine the reverse accessors names, as they would be the same. You need to set a :attr:`~ForeignKey.related_name` to at least one of them. If you'd @@ -2045,7 +2038,9 @@ that control how the relationship functions. If you don't specify an explicit ``through`` model, there is still an implicit ``through`` model class you can use to directly access the table - created to hold the association. It has three fields to link the models. + created to hold the association. It has three fields to link the models, a + primary key and two foreign keys. There is a unique constraint on the two + foreign keys. If the source and target models differ, the following fields are generated: |