Use a proxy for special transactions in treasury app for modularity (not a clean way, but without any other solution...)

apps/note/models/__init__.py

@@ -3,12 +3,12 @@
 
 from .notes import Alias, Note, NoteClub, NoteSpecial, NoteUser
 from .transactions import MembershipTransaction, Transaction, \
-    TemplateCategory, TransactionTemplate, RecurrentTransaction
+    TemplateCategory, TransactionTemplate, RecurrentTransaction, SpecialTransaction
 
 __all__ = [
     # Notes
     'Alias', 'Note', 'NoteClub', 'NoteSpecial', 'NoteUser',
     # Transactions
     'MembershipTransaction', 'Transaction', 'TemplateCategory', 'TransactionTemplate',
-    'RecurrentTransaction',
+    'RecurrentTransaction', 'SpecialTransaction',
 ]

apps/note/models/transactions.py

@@ -6,7 +6,6 @@ from django.urls import reverse
 from django.utils import timezone
 from django.utils.translation import gettext_lazy as _
 from polymorphic.models import PolymorphicModel
-from treasury.models import Remittance
 
 from .notes import Note, NoteClub, NoteSpecial
 
@@ -210,13 +209,6 @@ class SpecialTransaction(Transaction):
         blank=True,
     )
 
-    remittance = models.ForeignKey(
-        Remittance,
-        on_delete=models.PROTECT,
-        null=True,
-        verbose_name=_("Remittance"),
-    )
-
     @property
     def type(self):
         return _('Credit') if isinstance(self.source, NoteSpecial) else _("Debit")