Hopiu/django-fernet-encrypted-fields
1
0
Fork 0
mirror of https://github.com/jazzband/django-fernet-encrypted-fields.git synced 2026-03-16 22:40:27 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

Merge pull request #5 from StevenMapes/main

Browse source 
Fix for Error saving model in django admin
This commit is contained in:
fragment 2021-12-19 13:18:23 +09:00 committed by GitHub
commit 393ae0604e
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 11 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
encrypted_fields/fields.py
View file

@ -51,11 +51,21 @@ class EncryptedFieldMixin(object):
return self.to_python(value)
def to_python(self, value):
if value is None or not isinstance(value, str):
if value is None or not isinstance(value, str) or hasattr(self, '_already_decrypted'):
return value
value = self.f.decrypt(bytes(value, 'utf-8')).decode('utf-8')
return super(EncryptedFieldMixin, self).to_python(value)
def clean(self, value, model_instance):
"""
Create and assign a semaphore so that to_python method will not try to decrypt an already decrypted value
during cleaning of a form
"""
self._already_decrypted = True
ret = super().clean(value, model_instance)
del self._already_decrypted
return ret
class EncryptedCharField(EncryptedFieldMixin, models.CharField):
pass