init

backend/booking/forms.py

@@ -0,0 +1,21 @@
+from django import forms
+from django.core.exceptions import ValidationError
+from .models import Reservation
+
+class ReservationAdminForm(forms.ModelForm):
+    class Meta:
+        model = Reservation
+        fields = '__all__'
+
+    def clean(self):
+        cleaned_data = super().clean()
+        event = cleaned_data.get('event')
+        products = cleaned_data.get('event_products')
+
+        if event and products:
+            invalid_products = [p for p in products if p.event != event]
+            if invalid_products:
+                product_names = ', '.join(str(p) for p in invalid_products)
+                raise ValidationError(f"Některé produkty nepatří k této akci: {product_names}")
+
+        return cleaned_data