-
-
Notifications
You must be signed in to change notification settings - Fork 31.6k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Added the ability to force an SQL insert (or force an update) via a m…
…odel's save() method. git-svn-id: http://code.djangoproject.com/svn/django/trunk@8267 bcc190cf-cafb-0310-a4f2-bffc1f526a37
- Loading branch information
Showing
6 changed files
with
115 additions
and
12 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Empty file.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,62 @@ | ||
""" | ||
Tests for forcing insert and update queries (instead of Django's normal | ||
automatic behaviour). | ||
""" | ||
from django.db import models | ||
|
||
class Counter(models.Model): | ||
name = models.CharField(max_length = 10) | ||
value = models.IntegerField() | ||
|
||
class WithCustomPK(models.Model): | ||
name = models.IntegerField(primary_key=True) | ||
value = models.IntegerField() | ||
|
||
__test__ = {"API_TESTS": """ | ||
>>> c = Counter.objects.create(name="one", value=1) | ||
# The normal case | ||
>>> c.value = 2 | ||
>>> c.save() | ||
# Same thing, via an update | ||
>>> c.value = 3 | ||
>>> c.save(force_update=True) | ||
# Won't work because force_update and force_insert are mutually exclusive | ||
>>> c.value = 4 | ||
>>> c.save(force_insert=True, force_update=True) | ||
Traceback (most recent call last): | ||
... | ||
ValueError: Cannot force both insert and updating in model saving. | ||
# Try to update something that doesn't have a primary key in the first place. | ||
>>> c1 = Counter(name="two", value=2) | ||
>>> c1.save(force_update=True) | ||
Traceback (most recent call last): | ||
... | ||
ValueError: Cannot force an update in save() with no primary key. | ||
>>> c1.save(force_insert=True) | ||
# Won't work because we can't insert a pk of the same value. | ||
>>> c.value = 5 | ||
>>> c.save(force_insert=True) | ||
Traceback (most recent call last): | ||
... | ||
IntegrityError: ... | ||
# Work around transaction failure cleaning up for PostgreSQL. | ||
>>> from django.db import connection | ||
>>> connection.close() | ||
# Trying to update should still fail, even with manual primary keys, if the | ||
# data isn't in the database already. | ||
>>> obj = WithCustomPK(name=1, value=1) | ||
>>> obj.save(force_update=True) | ||
Traceback (most recent call last): | ||
... | ||
DatabaseError: ... | ||
""" | ||
} |