init

backend/servicedesk/serializers.py

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+from rest_framework import serializers
+
+from .models import ServiceTicket
+from account.models import CustomUser
+
+
+class ServiceTicketSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = ServiceTicket
+        fields = [
+            "id", "title", "description", "user",
+            "status", "category", "created_at"
+        ]
+        read_only_fields = ["id", "created_at"]
+
+        extra_kwargs = {
+            "title": {"help_text": "Stručný název požadavku", "required": True},
+            "description": {"help_text": "Detailní popis problému", "required": False},
+            "user": {"help_text": "ID uživatele, který požadavek zadává", "required": True},
+            "status": {"help_text": "Stav požadavku (new / in_progress / resolved / closed)", "required": False},
+            "category": {"help_text": "Kategorie požadavku (tech / reservation / payment / account / content / suggestion / other)", "required": True},
+        }
+
+    def validate(self, data):
+        user = data.get("user", None)
+
+        # if user is None:
+        #     raise serializers.ValidationError("Product is a required field.")
+        # # Check if user exists in DB
+        # if not CustomUser.objects.filter(pk=user.pk if hasattr(user, 'pk') else user).exists():
+        #     raise serializers.ValidationError("Neplatné ID Užívatele.")
+        
+        # Example validation: status must be one of the defined choices
+        if "status" in data and data["status"] not in dict(ServiceTicket.STATUS_CHOICES):
+            raise serializers.ValidationError({"status": "Neplatný stav požadavku."})
+        
+        if "category" in data and data["category"] not in dict(ServiceTicket.CATEGORY_CHOICES):
+            raise serializers.ValidationError({"category": "Neplatná kategorie požadavku."})
+        
+        title = data.get("title", "").strip()
+        if not title:
+            raise serializers.ValidationError("Název požadavku nemůže být prázdný.")
+        if len(title) > 255:
+            raise serializers.ValidationError("Název požadavku nemůže být delší než 255 znaků.")
+        data["title"] = title  # Optional: overwrite with trimmed version
+
+        return data