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authorCody Scott <cody.j.b.scott@gmail.com>2013-11-03 11:55:11 -0500
committerTim Graham <timograham@gmail.com>2013-11-08 19:24:31 -0500
commita8e84521c4e413ab1c50edd94ebd8a4724b6a851 (patch)
treed15557ad71dc6393ddd220c2ea06cee0fc35e345
parentcab72a439b4d97a5659437373d06fc613e06e0bc (diff)
Noted that .clear() will delete intermediary models
-rw-r--r--docs/topics/db/models.txt9
1 files changed, 6 insertions, 3 deletions
diff --git a/docs/topics/db/models.txt b/docs/topics/db/models.txt
index 163d75560c..1138f12fb2 100644
--- a/docs/topics/db/models.txt
+++ b/docs/topics/db/models.txt
@@ -470,7 +470,7 @@ the intermediate model::
>>> beatles = Group.objects.create(name="The Beatles")
>>> m1 = Membership(person=ringo, group=beatles,
... date_joined=date(1962, 8, 16),
- ... invite_reason= "Needed a new drummer.")
+ ... invite_reason="Needed a new drummer.")
>>> m1.save()
>>> beatles.members.all()
[<Person: Ringo Starr>]
@@ -478,7 +478,7 @@ the intermediate model::
[<Group: The Beatles>]
>>> m2 = Membership.objects.create(person=paul, group=beatles,
... date_joined=date(1960, 8, 1),
- ... invite_reason= "Wanted to form a band.")
+ ... invite_reason="Wanted to form a band.")
>>> beatles.members.all()
[<Person: Ringo Starr>, <Person: Paul McCartney>]
@@ -505,8 +505,11 @@ disabled for similar reasons. However, the
:meth:`~django.db.models.fields.related.RelatedManager.clear` method can be
used to remove all many-to-many relationships for an instance::
- # Beatles have broken up
+ >>> # Beatles have broken up
>>> beatles.members.clear()
+ >>> # Note that this deletes the intermediate model instances
+ >>> Membership.objects.all()
+ []
Once you have established the many-to-many relationships by creating instances
of your intermediate model, you can issue queries. Just as with normal