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Modify validity check from r16678 slightly to work with Oracle. 

We now skip this particular check on Oracle backends. Change is based on
a backend feature check, so it also works with other backends that may
treat NULL as equal to an empty string.

Fixes #16694 (with luck).

git-svn-id: http://code.djangoproject.com/svn/django/trunk@16681 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Malcolm Tredinnick 2011-08-25 05:44:18 +00:00
parent a3fd9cf288
commit 20473057d1
1 changed files with 5 additions and 1 deletions
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6
django/core/management/validation.py
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@ -39,7 +39,11 @@ def get_validation_errors(outfile, app=None):
e.add(opts, '"%s": You can\'t use "id" as a field name, because each model automatically gets an "id" field if none of the fields have primary_key=True. You need to either remove/rename your "id" field or add primary_key=True to a field.' % f.name) e.add(opts, '"%s": You can\'t use "id" as a field name, because each model automatically gets an "id" field if none of the fields have primary_key=True. You need to either remove/rename your "id" field or add primary_key=True to a field.' % f.name)
if f.name.endswith('_'): if f.name.endswith('_'):
e.add(opts, '"%s": Field names cannot end with underscores, because this would lead to ambiguous queryset filters.' % f.name) e.add(opts, '"%s": Field names cannot end with underscores, because this would lead to ambiguous queryset filters.' % f.name)
if f.primary_key and f.null: if (f.primary_key and f.null and
not connection.features.interprets_empty_strings_as_nulls):
# We cannot reliably check this for backends like Oracle which
# consider NULL and '' to be equal (and thus set up
# character-based fields a little differently).
e.add(opts, '"%s": Primary key fields cannot have null=True.' % f.name) e.add(opts, '"%s": Primary key fields cannot have null=True.' % f.name)
if isinstance(f, models.CharField): if isinstance(f, models.CharField):
try: try: