1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
from django.core import checks
class BaseDatabaseValidation(object):
"""
This class encapsulates all backend-specific model validation.
"""
def __init__(self, connection):
self.connection = connection
def validate_field(self, errors, opts, f):
"""
By default, there is no backend-specific validation.
This method has been deprecated by the new checks framework. New
backends should implement check_field instead.
"""
# This is deliberately commented out. It exists as a marker to
# remind us to remove this method, and the check_field() shim,
# when the time comes.
# warnings.warn('"validate_field" has been deprecated", RemovedInDjango19Warning)
pass
def check_field(self, field, **kwargs):
class ErrorList(list):
"""A dummy list class that emulates API used by the older
validate_field() method. When validate_field() is fully
deprecated, this dummy can be removed too.
"""
def add(self, opts, error_message):
self.append(checks.Error(error_message, hint=None, obj=field))
errors = ErrorList()
# Some tests create fields in isolation -- the fields are not attached
# to any model, so they have no `model` attribute.
opts = field.model._meta if hasattr(field, 'model') else None
self.validate_field(errors, field, opts)
return list(errors)
|
