Sybren A. Stüvel
375cab6e6e
Notes can now be added to *any* model in the admin. Deletion is
immediate and irreversible.
The following permissions can be granted to users/groups:
- blender_notes.add_note
- blender_notes.change_note
- blender_notes.delete_note
- blender_notes.view_note
WARNING: a user with view_note permissions can view *ALL* notes. There
is no model-level access. In other words, even when someone cannot see
Memberships, they can read ALL notes on ALL Memberships.
44 lines
1.7 KiB
Python
44 lines
1.7 KiB
Python
from django.contrib.auth.models import User
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from django.contrib.contenttypes.models import ContentType
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from django.contrib.contenttypes.fields import GenericForeignKey
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from django.db import models
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from django.db.models import query
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class NoteManager(models.Manager):
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def get_by_natural_key(self,
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app_label: str,
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model_class_name: str,
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object_id: int) -> query.QuerySet:
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ctype = ContentType.objects.get_by_natural_key(app_label, model_class_name)
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return self.filter(content_type__pk=ctype.pk, object_id=object_id)
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def get_by_content_type_id(self, content_type_id: int, object_id: int):
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return self.filter(content_type__pk=content_type_id, object_id=object_id)
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class Note(models.Model):
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"""CRM-like note that can be added to any Django model instance."""
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class Meta:
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ordering = ('created',)
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content_type = models.ForeignKey(ContentType, on_delete=models.CASCADE)
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object_id = models.PositiveIntegerField(db_index=True)
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object = GenericForeignKey('content_type', 'object_id')
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creator = models.ForeignKey(User,
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null=True,
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blank=True,
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related_name='created_notes',
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on_delete=models.PROTECT,
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limit_choices_to={'is_staff': True})
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created = models.DateTimeField(auto_now_add=True)
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updated = models.DateTimeField(auto_now=True)
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note = models.TextField(blank=False)
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objects = NoteManager()
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def __str__(self):
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return f'Note on {self.content_type} {self.object_id}'
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