diff options
Diffstat (limited to 'docs/topics/db/examples')
| -rw-r--r-- | docs/topics/db/examples/one_to_one.txt | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/docs/topics/db/examples/one_to_one.txt b/docs/topics/db/examples/one_to_one.txt index 89d422aecd..b66d52d369 100644 --- a/docs/topics/db/examples/one_to_one.txt +++ b/docs/topics/db/examples/one_to_one.txt @@ -61,10 +61,17 @@ A Place can access its restaurant, if available:: p2 doesn't have an associated restaurant:: - >>> p2.restaurant - Traceback (most recent call last): - ... - DoesNotExist: Restaurant matching query does not exist. + >>> from django.core.exceptions import ObjectDoesNotExist + >>> try: + >>> p2.restaurant + >>> except ObjectDoesNotExist: + >>> print("There is no restaurant here.") + There is no restaurant here. + +You can also use ``hasattr`` to avoid the need for exception catching:: + + >>> hasattr(p2, 'restaurant') + False Set the place using assignment notation. Because place is the primary key on Restaurant, the save will create a new restaurant:: |