Initial commit: WrestleDesk full project

- Django backend with DRF (clubs, wrestlers, trainers, exercises, templates, trainings, homework, locations, leistungstest)
- Next.js 16 frontend with React, Shadcn UI, Tailwind
- JWT authentication
- Full CRUD for all entities
- Calendar view for trainings
- Homework management system
- Leistungstest tracking

backend/auth_app/serializers.py

@@ -0,0 +1,64 @@
+from rest_framework import serializers
+from django.contrib.auth.models import User
+from .models import UserPreferences
+
+
+class UserSerializer(serializers.ModelSerializer):
+    club_id = serializers.SerializerMethodField()
+    club_name = serializers.SerializerMethodField()
+    
+    class Meta:
+        model = User
+        fields = ['id', 'username', 'email', 'first_name', 'last_name', 'club_id', 'club_name']
+        read_only_fields = ['id']
+    
+    def get_club_id(self, obj):
+        if hasattr(obj, 'profile') and obj.profile and obj.profile.club:
+            return obj.profile.club.id
+        return None
+    
+    def get_club_name(self, obj):
+        if hasattr(obj, 'profile') and obj.profile and obj.profile.club:
+            return obj.profile.club.name
+        return None
+
+
+class LoginSerializer(serializers.Serializer):
+    username = serializers.CharField()
+    password = serializers.CharField(write_only=True)
+
+
+class RegisterSerializer(serializers.ModelSerializer):
+    password = serializers.CharField(write_only=True, min_length=8)
+    password_confirm = serializers.CharField(write_only=True)
+
+    class Meta:
+        model = User
+        fields = ['username', 'email', 'password', 'password_confirm', 'first_name', 'last_name']
+
+    def validate_email(self, value):
+        if User.objects.filter(email=value).exists():
+            raise serializers.ValidationError('A user with this email already exists')
+        return value
+
+    def validate(self, attrs):
+        if attrs['password'] != attrs['password_confirm']:
+            raise serializers.ValidationError({'password_confirm': 'Passwords do not match'})
+        return attrs
+
+    def create(self, validated_data):
+        validated_data.pop('password_confirm')
+        user = User.objects.create_user(
+            username=validated_data['username'],
+            email=validated_data.get('email', ''),
+            password=validated_data['password'],
+            first_name=validated_data.get('first_name', ''),
+            last_name=validated_data.get('last_name', ''),
+        )
+        return user
+
+
+class UserPreferencesSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = UserPreferences
+        fields = '__all__'