added costs

app/costs/models.py

@@ -0,0 +1,39 @@
+from datetime import date
+from uuid import uuid4
+
+from django.db import models
+from django.conf import settings
+from django.utils.translation import gettext_lazy as _
+
+from bird.models import FallenBird
+
+
+class Costs(models.Model):
+    id = models.UUIDField(primary_key=True, default=uuid4, editable=False)
+    id_bird = models.ForeignKey(
+        FallenBird,
+        on_delete=models.SET_NULL,
+        blank=True,
+        null=True,
+        verbose_name=_("Patient"),
+    )
+    costs = models.DecimalField(
+        max_digits=5,
+        decimal_places=2,
+        default="0.00",
+        verbose_name=_("Betrag"))
+    created = models.DateTimeField(
+        verbose_name=_("Gebucht am"))
+    comment = models.CharField(
+        max_length=512,
+        blank=True,
+        null=True,
+        verbose_name=_("Bemerkungen"))
+    user = models.ForeignKey(
+        settings.AUTH_USER_MODEL,
+        on_delete=models.CASCADE,
+        verbose_name=_("Benutzer"))
+
+    class Meta:
+        verbose_name = _("Kosten")
+        verbose_name_plural = _("Kosten")