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/templates/serializers.py

@@ -0,0 +1,29 @@
+from rest_framework import serializers
+from .models import TrainingTemplate, TemplateExercise
+
+
+class TemplateExerciseSerializer(serializers.ModelSerializer):
+    exercise_name = serializers.CharField(source='exercise.name', read_only=True)
+    
+    class Meta:
+        model = TemplateExercise
+        fields = '__all__'
+
+
+class TrainingTemplateSerializer(serializers.ModelSerializer):
+    exercises = TemplateExerciseSerializer(many=True, source='templateexercise_set', read_only=True)
+    exercise_count = serializers.SerializerMethodField()
+    
+    class Meta:
+        model = TrainingTemplate
+        fields = '__all__'
+        read_only_fields = ['created_at', 'updated_at']
+    
+    def get_exercise_count(self, obj):
+        return obj.templateexercise_set.count()
+    
+    def create(self, validated_data):
+        request = self.context.get('request')
+        if request and hasattr(request.user, 'profile') and request.user.profile.club:
+            validated_data['club'] = request.user.profile.club
+        return super().create(validated_data)