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/trainers/views.py

@@ -0,0 +1,43 @@
+from rest_framework import viewsets, filters
+from rest_framework.permissions import IsAuthenticated
+from rest_framework.decorators import action
+from rest_framework.response import Response
+from django_filters.rest_framework import DjangoFilterBackend
+from utils.permissions import ClubFilterBackend, ClubLevelPermission
+from .models import Trainer
+from .serializers import TrainerSerializer
+from wrestleDesk.pagination import StandardResultsSetPagination
+
+
+class TrainerViewSet(viewsets.ModelViewSet):
+    queryset = Trainer.objects.select_related('club').all()
+    serializer_class = TrainerSerializer
+    pagination_class = StandardResultsSetPagination
+    permission_classes = [IsAuthenticated]
+    filter_backends = [DjangoFilterBackend, filters.SearchFilter, filters.OrderingFilter]
+    filterset_fields = ['club', 'is_active']
+    search_fields = ['first_name', 'last_name', 'email']
+    ordering_fields = ['last_name', 'first_name', 'created_at']
+
+    @action(detail=False, methods=['get'])
+    def available_for_training(self, request):
+        """
+        Returns ALL trainers without club filtering.
+        Used when selecting trainers for a training session
+        where trainers from other clubs may attend.
+        """
+        queryset = Trainer.objects.select_related('club').filter(is_active=True)
+        
+        search = request.query_params.get('search')
+        if search:
+            queryset = queryset.filter(first_name__icontains=search) | queryset.filter(last_name__icontains=search)
+        
+        queryset = queryset.order_by('last_name', 'first_name')
+        
+        page = self.paginate_queryset(queryset)
+        if page is not None:
+            serializer = self.get_serializer(page, many=True)
+            return self.get_paginated_response(serializer.data)
+        
+        serializer = self.get_serializer(queryset, many=True)
+        return Response(serializer.data)