Emphasized that ForeignKey.on_delete doesn't create a SQL constraint.

1b49b792 · Andrea Rabbaglietti · Tim Graham · c82893cb · 1b49b792
Kaydet (Commit) 1b49b792 authored Eki 10, 2018 tarafından Andrea Rabbaglietti Kaydeden (comit) Tim Graham Eki 10, 2018
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fields.txt docs/ref/models/fields.txt +3 -0

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--- a/docs/ref/models/fields.txt
+++ b/docs/ref/models/fields.txt
@@ -1271,6 +1271,9 @@ relation works.
            null=True,
        )

+    ``on_delete`` doesn't create a SQL constraint in the database. Support for
+    database-level cascade options :ticket:`may be implemented later <21961>`.
+
 The possible values for :attr:`~ForeignKey.on_delete` are found in
 :mod:`django.db.models`: