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| -rw-r--r-- | docs/topics/db/multi-db.txt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/docs/topics/db/multi-db.txt b/docs/topics/db/multi-db.txt index 78f3fe23d9..d4e6b6a1d6 100644 --- a/docs/topics/db/multi-db.txt +++ b/docs/topics/db/multi-db.txt @@ -163,6 +163,9 @@ A database Router is a class that provides up to four methods: used by foreign key and many to many operations to determine if a relation should be allowed between two objects. + If no router has an opinion (i.e. all routers return ``None``), only + relations within the same database are allowed. + .. method:: allow_migrate(db, app_label, model_name=None, **hints) Determine if the migration operation is allowed to run on the database with |