Creation of "Opener", Fix #117

apps/activity/models.py

@@ -11,7 +11,7 @@ from django.db import models, transaction
 from django.db.models import Q
 from django.utils import timezone
 from django.utils.translation import gettext_lazy as _
-from note.models import NoteUser, Transaction
+from note.models import NoteUser, Transaction, Note
 from rest_framework.exceptions import ValidationError
 
 
@@ -310,3 +310,31 @@ class GuestTransaction(Transaction):
     @property
     def type(self):
         return _('Invitation')
+
+
+class Opener(models.Model):
+    """
+    Allow the user to make activity entries without more rights
+    """
+    activity = models.ForeignKey(
+        Activity,
+        on_delete=models.CASCADE,
+        related_name='opener',
+        verbose_name=_('activity')
+    )
+
+    opener = models.ForeignKey(
+        Note,
+        on_delete=models.CASCADE,
+        related_name='activity_responsible',
+        verbose_name=_('Opener')
+    )
+
+    class Meta:
+        verbose_name = _("Opener")
+        verbose_name_plural = _("Openers")
+        unique_together = ("opener", "activity")
+
+    def __str__(self):
+        return _("{opener} is opener of activity {acivity}").format(
+            opener=str(self.opener), acivity=str(self.activity))