Make all feedback fields read-only in admin

shiftregister/feedback/admin.py

@@ -6,7 +6,7 @@ from .models import Feedback
 @admin.register(Feedback)
 class FeedbackAdmin(admin.ModelAdmin):
     list_display = ("helper", "party", "next_year", "feedback_len")
-    readonly_fields = ("feedback_len",)
+    readonly_fields = ("helper", "party", "next_year", "feedback_text", "feedback_len")
     list_filter = ("party", "next_year")
     ordering = ("helper__name",)
 

shiftregister/feedback/models.py

@@ -16,3 +16,6 @@ class Feedback(models.Model):
     )
     next_year = models.BooleanField()
     feedback_text = models.TextField(blank=True, default="")
+
+    def __str__(self):
+        return f"Feedback by {self.helper.name}"