创赢未来评分系统 - 初始化提交（移除大文件）

backend/community/admin.py

@@ -0,0 +1,404 @@
+from django.contrib import admin
+from django.utils.html import format_html
+from django.urls import path, reverse
+from django.shortcuts import redirect
+from unfold.admin import ModelAdmin, TabularInline
+from unfold.decorators import display
+from .models import Activity, ActivitySignup, Topic, Reply, TopicMedia, Announcement
+from .admin_actions import export_signups_csv, export_signups_excel
+
+class ActivitySignupInline(TabularInline):
+    model = ActivitySignup
+    extra = 0
+    readonly_fields = ('signup_time',)
+    fields = ('user', 'status', 'signup_time')
+    autocomplete_fields = ['user']
+    can_delete = True
+    show_change_link = True
+
+class ReplyInline(TabularInline):
+    model = Reply
+    extra = 0
+    readonly_fields = ('created_at',)
+    fields = ('content', 'author', 'created_at')
+    can_delete = True
+    show_change_link = True
+
+class TopicMediaInline(TabularInline):
+    model = TopicMedia
+    extra = 0
+    fields = ('file', 'file_url', 'media_type', 'created_at')
+    readonly_fields = ('created_at',)
+    can_delete = True
+
+class OrderableAdminMixin:
+    """
+    为 Admin 添加排序功能的 Mixin
+    提供上移、下移按钮，直接交换 order 值
+    """
+    def get_urls(self):
+        urls = super().get_urls()
+        custom_urls = [
+            path('<path:object_id>/move-up/', self.admin_site.admin_view(self.move_up_view), name=f'{self.model._meta.app_label}_{self.model._meta.model_name}_move_up'),
+            path('<path:object_id>/move-down/', self.admin_site.admin_view(self.move_down_view), name=f'{self.model._meta.app_label}_{self.model._meta.model_name}_move_down'),
+        ]
+        return custom_urls + urls
+
+    def move_up_view(self, request, object_id):
+        obj = self.get_object(request, object_id)
+        if obj:
+            qs = self.model.objects.all()
+            # 如果模型有 is_pinned 字段，则只在相同置顶状态的记录中交换
+            if hasattr(obj, 'is_pinned'):
+                qs = qs.filter(is_pinned=obj.is_pinned)
+
+            # 找到排在它前面的一个 (order 小于它的最大值)
+            prev_obj = qs.filter(order__lt=obj.order).order_by('-order').first()
+            if prev_obj:
+                # 交换
+                obj.order, prev_obj.order = prev_obj.order, obj.order
+                obj.save()
+                prev_obj.save()
+                self.message_user(request, f"成功将 {obj} 上移")
+            else:
+                # 已经是第一个，或者前面没有更小的 order
+                pass
+        return redirect(request.META.get('HTTP_REFERER', '..'))
+
+    def move_down_view(self, request, object_id):
+        obj = self.get_object(request, object_id)
+        if obj:
+            qs = self.model.objects.all()
+            # 如果模型有 is_pinned 字段，则只在相同置顶状态的记录中交换
+            if hasattr(obj, 'is_pinned'):
+                qs = qs.filter(is_pinned=obj.is_pinned)
+
+            # 找到排在它后面的一个 (order 大于它的最小值)
+            next_obj = qs.filter(order__gt=obj.order).order_by('order').first()
+            if next_obj:
+                # 交换
+                obj.order, next_obj.order = next_obj.order, obj.order
+                obj.save()
+                next_obj.save()
+                self.message_user(request, f"成功将 {obj} 下移")
+        return redirect(request.META.get('HTTP_REFERER', '..'))
+
+    def order_actions(self, obj):
+        # 只有专家用户才显示排序按钮
+        if not getattr(obj, 'is_star', True): # 默认为True是为了兼容其他模型，WeChatUser有is_star字段
+            return "默认排序"
+
+        # 使用 inline style 实现基本样式
+        btn_style = (
+            "display: inline-flex; align-items: center; justify-content: center; "
+            "width: 26px; height: 26px; border-radius: 6px; "
+            "background-color: #f3f4f6; color: #4b5563; text-decoration: none; "
+            "border: 1px solid #e5e7eb; transition: all 0.2s;"
+        )
+        # onmouseover js
+        hover_js = "this.style.backgroundColor='#dbeafe'; this.style.color='#2563eb'; this.style.borderColor='#bfdbfe';"
+        out_js = "this.style.backgroundColor='#f3f4f6'; this.style.color='#4b5563'; this.style.borderColor='#e5e7eb';"
+
+        return format_html(
+            '<div style="display: flex; align-items: center; gap: 6px;">'
+            '<a href="{}" title="上移" style="{}" onmouseover="{}" onmouseout="{}">'
+            '<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round"><path d="M18 15l-6-6-6 6"/></svg>'
+            '</a>'
+            '<span style="font-weight: 700; font-family: system-ui, -apple-system, sans-serif; min-width: 20px; text-align: center; color: #374151; font-size: 13px;">{}</span>'
+            '<a href="{}" title="下移" style="{}" onmouseover="{}" onmouseout="{}">'
+            '<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round"><path d="M6 9l6 6 6-6"/></svg>'
+            '</a>'
+            '</div>',
+            reverse(f'admin:{self.model._meta.app_label}_{self.model._meta.model_name}_move_up', args=[obj.pk]),
+            btn_style, hover_js, out_js,
+            obj.order,
+            reverse(f'admin:{self.model._meta.app_label}_{self.model._meta.model_name}_move_down', args=[obj.pk]),
+            btn_style, hover_js, out_js,
+        )
+    order_actions.short_description = "排序调节"
+    order_actions.allow_tags = True
+
+@admin.register(Activity)
+class ActivityAdmin(ModelAdmin):
+    list_display = ('title', 'author_info_display', 'banner_display', 'start_time', 'location', 'signup_count', 'is_visible', 'is_active', 'auto_confirm', 'created_at')
+    list_filter = ('is_visible', 'is_active', 'auto_confirm', 'start_time')
+    search_fields = ('title', 'location', 'author__phone_number')
+    # autocomplete_fields = ['author'] # 暂时注释，避免环境不一致导致报错
+    raw_id_fields = ('author',)
+    inlines = [ActivitySignupInline]
+    
+    fieldsets = (
+        ('基本信息', {
+            'fields': ('title', 'author', 'description', 'banner', 'banner_url', 'is_visible', 'is_active', 'auto_confirm')
+        }),
+        ('费用与时间', {
+            'fields': ('is_paid', 'price', 'start_time', 'end_time', 'location'),
+            'classes': ('tab',)
+        }),
+        ('报名设置', {
+            'fields': ('max_participants', 'ask_name', 'ask_phone', 'ask_wechat', 'ask_company', 'signup_form_config'),
+            'description': '勾选需要收集的信息，或者在下方“自定义报名配置”中填写高级JSON配置'
+        }),
+    )
+
+    @display(description="发布者 (手机号/昵称)")
+    def author_info_display(self, obj):
+        if not obj.author:
+            return "-"
+        phone = obj.author.phone_number or "无手机号"
+        nickname = obj.author.nickname or "无昵称"
+        return f"{phone} ({nickname})"
+
+    @display(description="Banner")
+    def banner_display(self, obj):
+        if obj.banner:
+            return format_html('<img src="{}" height="50" style="border-radius: 4px;" />', obj.banner.url)
+        elif obj.banner_url:
+            return format_html('<img src="{}" height="50" style="border-radius: 4px;" />', obj.banner_url)
+        return "暂无"
+
+    @display(description="报名人数")
+    def signup_count(self, obj):
+        return obj.signups.count()
+
+@admin.register(ActivitySignup)
+class ActivitySignupAdmin(ModelAdmin):
+    list_display = ('activity', 'user_info_display', 'signup_time', 'status_label', 'order_link')
+    list_filter = ('status', 'signup_time', 'activity')
+    search_fields = ('user__nickname', 'user__phone_number', 'activity__title')
+    autocomplete_fields = ['activity', 'user']
+    actions = [export_signups_csv, export_signups_excel]
+    
+    fieldsets = (
+        ('报名详情', {
+            'fields': ('activity', 'user', 'status', 'order', 'signup_info_display')
+        }),
+        ('时间信息', {
+            'fields': ('signup_time',),
+            'classes': ('collapse',)
+        }),
+    )
+    readonly_fields = ('signup_time', 'signup_info_display')
+
+    @display(description="报名用户 (手机号/昵称)")
+    def user_info_display(self, obj):
+        phone = obj.user.phone_number or "无手机号"
+        nickname = obj.user.nickname or "无昵称"
+        return f"{phone} ({nickname})"
+
+    @display(description="报名信息")
+    def signup_info_display(self, obj):
+        import json
+        if not obj.signup_info:
+            return "无"
+        
+        try:
+            # Format JSON nicely
+            formatted_json = json.dumps(obj.signup_info, indent=2, ensure_ascii=False)
+            return format_html('<pre style="white-space: pre-wrap; word-break: break-all;">{}</pre>', formatted_json)
+        except:
+            return str(obj.signup_info)
+
+    @display(
+        description="状态",
+        label={
+            "pending": "warning",
+            "confirmed": "success",
+            "cancelled": "danger",
+            "unpaid": "secondary",
+        }
+    )
+    def status_label(self, obj):
+        # Auto sync with order status on display
+        if obj.check_payment_status():
+            # If status changed, return new status
+            return obj.status
+        return obj.status
+
+    @display(description="关联订单")
+    def order_link(self, obj):
+        if obj.order:
+            return format_html('<a href="/admin/shop/order/{}/change/">Order #{}</a>', obj.order.id, obj.order.id)
+        return "-"
+
+@admin.register(Topic)
+class TopicAdmin(OrderableAdminMixin, ModelAdmin):
+    list_display = ('title', 'status', 'category', 'author_info_display', 'get_related_item', 'reply_count', 'view_count', 'is_pinned', 'created_at', 'order_actions')
+    list_filter = ('status', 'category', 'is_pinned', 'created_at', 'related_product', 'related_service', 'related_course')
+    search_fields = ('title', 'content', 'author__nickname', 'author__phone_number')
+    autocomplete_fields = ['author', 'related_product', 'related_service', 'related_course']
+    filter_horizontal = ('likes',)
+    inlines = [TopicMediaInline, ReplyInline]
+    actions = ['reset_ordering', 'approve_topics', 'reject_topics']
+    list_editable = ('status', 'is_pinned', 'view_count')
+
+    @display(description="作者 (手机号/昵称)")
+    def author_info_display(self, obj):
+        if not obj.author:
+            return "-"
+        phone = obj.author.phone_number or "无手机号"
+        nickname = obj.author.nickname or "无昵称"
+        return f"{phone} ({nickname})"
+
+    @admin.action(description="批量通过审核")
+    def approve_topics(self, request, queryset):
+        rows_updated = queryset.update(status='published')
+        self.message_user(request, f"{rows_updated} 个帖子已通过审核")
+
+    @admin.action(description="批量拒绝")
+    def reject_topics(self, request, queryset):
+        rows_updated = queryset.update(status='rejected')
+        self.message_user(request, f"{rows_updated} 个帖子已拒绝")
+
+    def save_model(self, request, obj, form, change):
+        # 当帖子被置顶时(新建或修改状态)，默认将排序值设为0
+        if obj.is_pinned and (not change or 'is_pinned' in form.changed_data):
+            obj.order = 0
+        super().save_model(request, obj, form, change)
+
+    @admin.action(description="重置排序 (0,1,2... 新帖子在前)")
+    def reset_ordering(self, request, queryset):
+        """
+        将所有帖子按时间倒序重新分配order值 (0, 1, 2, ...)
+        """
+        all_objects = Topic.objects.all().order_by('-created_at')
+        for index, obj in enumerate(all_objects):
+            if obj.order != index:
+                obj.order = index
+                obj.save(update_fields=['order'])
+        self.message_user(request, f"成功重置了 {all_objects.count()} 个帖子的排序权重（从0开始）。")
+    
+    fieldsets = (
+        ('帖子内容', {
+            'fields': ('title', 'status', 'category', 'content', 'is_pinned', 'likes')
+        }),
+        ('关联信息', {
+            'fields': ('author', 'related_product', 'related_service', 'related_course'),
+            'description': '可关联 硬件、服务 或 课程，用于技术求助或讨论'
+        }),
+        ('统计数据', {
+            'fields': ('view_count', 'order', 'created_at', 'updated_at'),
+            'classes': ('collapse',)
+        }),
+    )
+    readonly_fields = ('created_at', 'updated_at')
+
+    @display(description="关联项目")
+    def get_related_item(self, obj):
+        if obj.related_product:
+            return f"[硬件] {obj.related_product.name}"
+        if obj.related_service:
+            return f"[服务] {obj.related_service.title}"
+        if obj.related_course:
+            return f"[课程] {obj.related_course.title}"
+        return "-"
+
+    @display(description="回复数")
+    def reply_count(self, obj):
+        return obj.replies.count()
+
+@admin.register(Reply)
+class ReplyAdmin(ModelAdmin):
+    list_display = ('short_content', 'topic', 'author_info_display', 'is_pinned', 'like_count', 'created_at')
+    list_filter = ('is_pinned', 'created_at')
+    search_fields = ('content', 'author__nickname', 'author__phone_number', 'topic__title')
+    autocomplete_fields = ['author', 'topic', 'reply_to']
+    filter_horizontal = ('likes',)
+    list_editable = ('is_pinned',)
+    inlines = [TopicMediaInline]
+    
+    fieldsets = (
+        ('回复内容', {
+            'fields': ('topic', 'reply_to', 'content', 'likes')
+        }),
+        ('发布信息', {
+            'fields': ('author', 'is_pinned', 'created_at')
+        }),
+    )
+    readonly_fields = ('created_at',)
+
+    @display(description="回复者 (手机号/昵称)")
+    def author_info_display(self, obj):
+        if not obj.author:
+            return "-"
+        phone = obj.author.phone_number or "无手机号"
+        nickname = obj.author.nickname or "无昵称"
+        return f"{phone} ({nickname})"
+
+    @display(description="点赞数")
+    def like_count(self, obj):
+        return obj.likes.count()
+
+    @display(description="内容摘要")
+    def short_content(self, obj):
+        return obj.content[:30] + '...' if len(obj.content) > 30 else obj.content
+
+@admin.register(TopicMedia)
+class TopicMediaAdmin(ModelAdmin):
+    list_display = ('id', 'media_type', 'file_preview', 'topic', 'reply', 'created_at')
+    list_filter = ('media_type', 'created_at')
+    search_fields = ('file', 'topic__title')
+    autocomplete_fields = ['topic', 'reply']
+    
+    @display(description="预览")
+    def file_preview(self, obj):
+        url = ""
+        if obj.file:
+            url = obj.file.url
+        elif obj.file_url:
+            url = obj.file_url
+
+        if obj.media_type == 'image' and url:
+            return format_html('<img src="{}" height="50" style="border-radius: 4px;" />', url)
+        return obj.file.name or "外部文件"
+
+@admin.register(Announcement)
+class AnnouncementAdmin(ModelAdmin):
+    list_display = ('title', 'image_preview', 'active_label', 'pinned_label', 'priority', 'start_time', 'end_time', 'created_at')
+    list_filter = ('is_active', 'is_pinned', 'created_at')
+    search_fields = ('title', 'content')
+    
+    fieldsets = (
+        ('公告信息', {
+            'fields': ('title', 'content', 'link_url')
+        }),
+        ('图片设置', {
+            'fields': ('image', 'image_url'),
+            'description': '上传图片或填写图片链接，优先显示上传的图片'
+        }),
+        ('显示设置', {
+            'fields': ('is_active', 'is_pinned', 'priority'),
+            'classes': ('tab',)
+        }),
+        ('排期设置', {
+            'fields': ('start_time', 'end_time'),
+            'classes': ('tab',)
+        }),
+    )
+
+    @display(description="图片预览")
+    def image_preview(self, obj):
+        url = obj.display_image_url
+        if url:
+            return format_html('<img src="{}" height="50" style="border-radius: 4px;" />', url)
+        return "无图片"
+
+    @display(
+        description="状态",
+        label={
+            True: "success",
+            False: "danger",
+        }
+    )
+    def active_label(self, obj):
+        return obj.is_active
+
+    @display(
+        description="置顶",
+        label={
+            True: "warning",
+            False: "default",
+        }
+    )
+    def pinned_label(self, obj):
+        return obj.is_pinned