mirror of
https://gitlab.crans.org/bde/nk20
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66 lines
1.6 KiB
Python
66 lines
1.6 KiB
Python
# Copyright (C) 2018-2020 by BDE ENS Paris-Saclay
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# SPDX-License-Identifier: GPL-3.0-or-later
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from django.contrib.contenttypes.models import ContentType
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from django.utils.translation import gettext_lazy as _
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from django.conf import settings
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from django.core.exceptions import ValidationError
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from django.db import models
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class Changelog(models.Model):
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"""
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Store each modification on the database (except sessions and logging),
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including creating, editing and deleting models.
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"""
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user = models.ForeignKey(
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settings.AUTH_USER_MODEL,
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on_delete=models.PROTECT,
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null=True,
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verbose_name=_('user'),
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)
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model = models.ForeignKey(
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ContentType,
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on_delete=models.PROTECT,
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null=False,
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blank=False,
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verbose_name=_('model'),
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)
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instance_pk = models.CharField(
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max_length=255,
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null=False,
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blank=False,
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verbose_name=_('identifier'),
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)
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previous = models.TextField(
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null=True,
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verbose_name=_('previous data'),
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)
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data = models.TextField(
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null=True,
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verbose_name=_('new data'),
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)
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action = models.CharField( # create, edit or delete
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max_length=16,
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null=False,
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blank=False,
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verbose_name=_('action'),
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)
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timestamp = models.DateTimeField(
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null=False,
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blank=False,
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auto_now_add=True,
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name='timestamp',
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verbose_name=_('timestamp'),
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)
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def delete(self, using=None, keep_parents=False):
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raise ValidationError(_("Logs cannot be destroyed."))
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