feat: 现代化翻页组件 + 完整项目更新

- 新增 Pagination 通用组件：首页/上一页/页码/下一页/末页导航 - PickModal 和 SwapModal 集成分页功能，每页20项 - 搜索/筛选切换自动回到第1页 - 现代化CSS样式：hover浮起动效、主色高亮、移动端适配 - 新增 dashboard、admin 管理模板 - 菜系(cuisine)模型和迁移 - 构建脚本 build.py 支持 PyInstaller 打包 - 前端资源重新构建
2026-08-28 13:44:21 +08:00
parent 65b52b052f
commit d7553520ce
51 changed files with 4318 additions and 441 deletions
@@ -0,0 +1,90 @@
+"""Dashboard API & view – visualization panel for the school meal planner."""
+import json
+from collections import Counter
+
+from django.http import JsonResponse
+from django.shortcuts import render
+from django.db.models import Avg, Count, Max, Min, Sum
+
+from .models import Dish
+
+
+def _dashboard_stats():
+    """Return aggregate statistics for the dashboard."""
+    total = Dish.objects.count()
+    active = Dish.objects.filter(is_active=True).count()
+    inactive = total - active
+
+    # Count by type
+    type_counts = dict(
+        Dish.objects.values_list('dish_type').annotate(c=Count('id')).values_list('dish_type', 'c')
+    )
+
+    # Count by cuisine
+    cuisine_counts = dict(
+        Dish.objects.values_list('cuisine').annotate(c=Count('id')).values_list('cuisine', 'c')
+    )
+
+    # Nutrition averages (active dishes only, meat + veg only for meaningful stats)
+    nutrition = Dish.objects.filter(is_active=True, dish_type__in=('meat', 'veg')).aggregate(
+        avg_protein=Avg('protein'),
+        avg_fat=Avg('fat'),
+        avg_calorie=Avg('calorie'),
+        max_calorie=Max('calorie'),
+        min_calorie=Min('calorie'),
+    )
+
+    # Per-type nutrition averages
+    type_nutrition = {}
+    for dt in ('meat', 'veg', 'soup', 'staple'):
+        agg = Dish.objects.filter(is_active=True, dish_type=dt).aggregate(
+            avg_protein=Avg('protein'),
+            avg_fat=Avg('fat'),
+            avg_calorie=Avg('calorie'),
+            count=Count('id'),
+        )
+        type_nutrition[dt] = agg
+
+    # Recent 10 dishes
+    recent = list(
+        Dish.objects.order_by('-created_at')[:10].values(
+            'id', 'name', 'dish_type', 'cuisine', 'protein', 'fat', 'calorie', 'is_active', 'created_at',
+        )
+    )
+    for r in recent:
+        r['created_at'] = r['created_at'].strftime('%Y-%m-%d %H:%M') if r['created_at'] else ''
+
+    return {
+        'total': total,
+        'active': active,
+        'inactive': inactive,
+        'type_counts': type_counts,
+        'cuisine_counts': cuisine_counts,
+        'nutrition': {
+            'avg_protein': round(float(nutrition['avg_protein'] or 0), 1),
+            'avg_fat': round(float(nutrition['avg_fat'] or 0), 1),
+            'avg_calorie': round(float(nutrition['avg_calorie'] or 0)),
+            'max_calorie': int(nutrition['max_calorie'] or 0),
+            'min_calorie': int(nutrition['min_calorie'] or 0),
+        },
+        'type_nutrition': {
+            k: {
+                'avg_protein': round(float(v['avg_protein'] or 0), 1),
+                'avg_fat': round(float(v['avg_fat'] or 0), 1),
+                'avg_calorie': round(float(v['avg_calorie'] or 0)),
+                'count': v['count'],
+            }
+            for k, v in type_nutrition.items()
+        },
+        'recent': recent,
+    }
+
+
+def dashboard_api(request):
+    """GET /api/dashboard/  -> JSON stats for the dashboard."""
+    return JsonResponse(_dashboard_stats())
+
+
+def dashboard_view(request):
+    """GET /dashboard/  -> serve the dashboard HTML page."""
+    return render(request, 'dashboard.html')