first working version

exam_system/exam_server/api/serializers.py

@@ -0,0 +1,48 @@
+"""
+Serializers for API.
+"""
+from django.contrib.auth import get_user_model
+from rest_framework import serializers
+
+User = get_user_model()
+
+
+class UserRegistrationSerializer(serializers.ModelSerializer):
+    """Serializer for user registration."""
+    password = serializers.CharField(write_only=True, min_length=6)
+    password_confirm = serializers.CharField(write_only=True, min_length=6)
+    
+    class Meta:
+        model = User
+        fields = ['username', 'email', 'password', 'password_confirm', 'first_name', 'last_name']
+    
+    def validate(self, data):
+        if data['password'] != data['password_confirm']:
+            raise serializers.ValidationError({"password": "Passwords must match"})
+        return data
+    
+    def create(self, validated_data):
+        validated_data.pop('password_confirm')
+        user = User.objects.create_user(
+            username=validated_data['username'],
+            email=validated_data['email'],
+            password=validated_data['password'],
+            first_name=validated_data.get('first_name', ''),
+            last_name=validated_data.get('last_name', '')
+        )
+        return user
+
+
+class UserSerializer(serializers.ModelSerializer):
+    """Serializer for user details."""
+    class Meta:
+        model = User
+        fields = ['id', 'username', 'email', 'first_name', 'last_name', 'created_at']
+        read_only_fields = ['id', 'created_at']
+
+
+class LoginSerializer(serializers.Serializer):
+    """Serializer for login."""
+    username = serializers.CharField()
+    password = serializers.CharField(write_only=True)
+