312 lines
7.8 KiB
Markdown
312 lines
7.8 KiB
Markdown
# 灵感瀑布(横向瀑布流藏品展示)设计文档
|
||
|
||
> **创建日期:** 2026-04-27
|
||
> **项目:** TopFans 横向瀑布流藏品展示
|
||
> **服务:** galleryService (Go Dubbo-go)
|
||
> **状态:** 设计中
|
||
|
||
---
|
||
|
||
## 一、设计目标
|
||
|
||
横向瀑布流展示该 star_id 下所有用户展出的藏品,支持随机展示、分页、按类型过滤。
|
||
|
||
---
|
||
|
||
## 二、数据来源
|
||
|
||
**主表:** Exhibition(展品展示表)
|
||
|
||
**关联表:** Asset(资产表)- 用于按 material_type 过滤
|
||
|
||
**筛选条件:**
|
||
- `occupier_star_id = ?` (当前用户 star_id)
|
||
- `expire_at > now` (未过期)
|
||
- `deleted_at IS NULL` (未删除)
|
||
|
||
**按 type 过滤:** JOIN Asset 表,WHERE assets.material_type = ?
|
||
|
||
---
|
||
|
||
## 三、API 设计
|
||
|
||
### 3.1 获取灵感瀑布(横向瀑布流)藏品列表
|
||
|
||
```
|
||
GET /api/v1/inspiration-flow
|
||
```
|
||
|
||
**Query 参数:**
|
||
|
||
| 参数 | 类型 | 必填 | 默认值 | 说明 |
|
||
|------|------|------|--------|------|
|
||
| page | int | 否 | 1 | 页码 |
|
||
| page_size | int | 否 | 20 | 每页数量(最大100) |
|
||
| type | string | 否 | all | 过滤类型:badge/poster/original/all |
|
||
|
||
**HTTP 响应:**
|
||
|
||
```json
|
||
{
|
||
"code": 200,
|
||
"message": "ok",
|
||
"data": {
|
||
"items": [
|
||
{
|
||
"asset_id": 123,
|
||
"name": "藏品名称",
|
||
"cover_url": "https://xxx.com/cover.png",
|
||
"like_count": 100,
|
||
"owner_nickname": "粉丝昵称"
|
||
}
|
||
],
|
||
"page": 1,
|
||
"page_size": 20,
|
||
"total": 100,
|
||
"has_more": true
|
||
}
|
||
}
|
||
```
|
||
|
||
**错误码:**
|
||
|
||
| code | 说明 |
|
||
|------|------|
|
||
| 200 | 成功 |
|
||
| 401 | 用户认证失败 |
|
||
| 500 | 服务器内部错误 |
|
||
|
||
---
|
||
|
||
## 四、Proto 定义
|
||
|
||
### 4.1 Request / Response
|
||
|
||
```protobuf
|
||
// 获取灵感瀑布藏品列表请求
|
||
message GetInspirationFlowRequest {
|
||
int32 page = 1; // 页码(默认1)
|
||
int32 page_size = 2; // 每页数量(默认20,最大100)
|
||
string type = 3; // 过滤类型:badge/poster/original/all(默认all)
|
||
}
|
||
|
||
// 获取灵感瀑布藏品列表响应
|
||
message GetInspirationFlowResponse {
|
||
topfans.common.BaseResponse base = 1;
|
||
InspirationFlowData data = 2;
|
||
}
|
||
|
||
// 灵感瀑布数据
|
||
message InspirationFlowData {
|
||
repeated InspirationFlowItem items = 1; // 藏品列表
|
||
int32 page = 2; // 当前页码
|
||
int32 page_size = 3; // 每页数量
|
||
int64 total = 4; // 总数量
|
||
bool has_more = 5; // 是否有更多
|
||
}
|
||
|
||
// 灵感瀑布藏品项
|
||
message InspirationFlowItem {
|
||
int64 asset_id = 1; // 资产ID
|
||
string name = 2; // 藏品名称
|
||
string cover_url = 3; // 封面图URL
|
||
int32 like_count = 4; // 点赞数
|
||
string owner_nickname = 5; // 展出者昵称
|
||
}
|
||
```
|
||
|
||
### 4.2 Service 方法
|
||
|
||
在 GalleryService 中新增方法:
|
||
|
||
```protobuf
|
||
// 展馆服务
|
||
service GalleryService {
|
||
// ... 现有方法 ...
|
||
|
||
// 获取灵感瀑布藏品列表
|
||
rpc GetInspirationFlow(GetInspirationFlowRequest) returns (GetInspirationFlowResponse) {
|
||
option (google.api.http) = {
|
||
get: "/api/v1/inspiration-flow"
|
||
};
|
||
}
|
||
}
|
||
```
|
||
|
||
---
|
||
|
||
## 五、核心逻辑
|
||
|
||
### 5.1 查询逻辑
|
||
|
||
```sql
|
||
SELECT
|
||
e.asset_id,
|
||
a.name,
|
||
a.cover_url,
|
||
a.like_count,
|
||
fp.nickname as owner_nickname
|
||
FROM exhibitions e
|
||
JOIN assets a ON e.asset_id = a.id
|
||
JOIN fan_profiles fp ON e.occupier_uid = fp.user_id AND e.occupier_star_id = fp.star_id
|
||
WHERE e.occupier_star_id = ?
|
||
AND e.expire_at > ?
|
||
AND e.deleted_at IS NULL
|
||
AND a.status = 1
|
||
AND a.is_active = true
|
||
AND (? = 'all' OR a.material_type = ?)
|
||
ORDER BY RANDOM()
|
||
LIMIT ? OFFSET ?;
|
||
```
|
||
|
||
**参数说明:**
|
||
- `? = star_id` (当前用户 star_id)
|
||
- `? = now` (当前时间戳)
|
||
- `? = type` (过滤类型)
|
||
- `? = page_size`
|
||
- `? = (page - 1) * page_size`
|
||
|
||
### 5.2 6小时自动下架
|
||
|
||
已实现的 `GetExpiredExhibitions` 方法查询已过期的展览记录,调度器定期清理。
|
||
|
||
**下架时执行:**
|
||
1. 设置 `deleted_at = now`
|
||
2. 调用 `ClearAssetLikeRecords` RPC 重置点赞数为 0
|
||
3. 更新 `asset_registry.display_status = 0`
|
||
|
||
### 5.3 重新上架逻辑
|
||
|
||
当藏品重新展示时:
|
||
1. 创建新的 Exhibition 记录
|
||
2. 更新 `asset_registry.display_status = 1`
|
||
3. 点赞数从 0 开始(因为之前下架时已清除点赞记录)
|
||
|
||
### 5.4 随机展示
|
||
|
||
使用 `ORDER BY RANDOM()` 实现随机排序。
|
||
|
||
---
|
||
|
||
## 六、数据模型
|
||
|
||
### 6.1 Exhibition 表(已有字段)
|
||
|
||
```go
|
||
type Exhibition struct {
|
||
ID int64 `gorm:"primaryKey"`
|
||
AssetID int64 `gorm:"not null"`
|
||
SlotID int64 `gorm:"not null"`
|
||
HostProfileID int64 `gorm:"not null"`
|
||
OccupierUID int64 `gorm:"not null"`
|
||
OccupierStarID int64 `gorm:"not null;index"`
|
||
StartTime int64 `gorm:"not null"`
|
||
ExpireAt int64 `gorm:"not null;index"`
|
||
CreatedAt int64 `gorm:"not null"`
|
||
UpdatedAt int64 `gorm:"not null"`
|
||
DeletedAt *int64 `gorm:"index"`
|
||
}
|
||
```
|
||
|
||
### 6.2 Asset 表关联字段
|
||
|
||
```go
|
||
type Asset struct {
|
||
// ... 现有字段 ...
|
||
MaterialType string `gorm:"column:material_type"` // 素材类型:badge/poster/original
|
||
IsOriginal bool `gorm:"column:is_original"`
|
||
LikeCount int32 `gorm:"not null;default:0"`
|
||
}
|
||
```
|
||
|
||
**新增字段(需数据库变更):**
|
||
```sql
|
||
ALTER TABLE assets ADD COLUMN material_type VARCHAR(50) DEFAULT 'original';
|
||
```
|
||
|
||
**material_type 枚举值:**
|
||
- `original` — 原创(默认值)
|
||
- `badge` — 吧唧
|
||
- `poster` — 海报
|
||
|
||
---
|
||
|
||
## 七、收益记录
|
||
|
||
**预留:** 收益记录通过经济系统已有的 `exhibition_revenue` change_type 实现。
|
||
|
||
后续按需在 Exhibition 创建/删除时写入 `crystal_transaction_records`,change_type 为 `exhibition_revenue`。
|
||
|
||
---
|
||
|
||
## 八、配置项
|
||
|
||
| 配置项 | 说明 | 默认值 |
|
||
|--------|------|--------|
|
||
| exhibition_duration | 展览时长(秒) | 14400(4小时,可配置) |
|
||
| inspiration_flow_page_size | 默认每页数量 | 20 |
|
||
| inspiration_flow_max_page_size | 最大每页数量 | 100 |
|
||
|
||
---
|
||
|
||
## 九、项目文件结构
|
||
|
||
```
|
||
backend/
|
||
├── proto/
|
||
│ └── gallery.proto # 修改:新增 GetInspirationFlow 方法
|
||
│
|
||
├── pkg/proto/
|
||
│ ├── gallery/
|
||
│ │ ├── gallery.pb.go # 重新生成
|
||
│ │ └── gallery.triple.go # 重新生成
|
||
│
|
||
├── services/galleryService/
|
||
│ ├── repository/
|
||
│ │ └── gallery_repository.go # 修改:新增 GetActiveExhibitions 方法
|
||
│ │
|
||
│ ├── service/
|
||
│ │ └── gallery_service.go # 修改:新增 GetInspirationFlow 方法
|
||
│ │
|
||
│ ├── provider/
|
||
│ │ └── gallery_provider.go # 修改:新增 GetInspirationFlow Handler
|
||
│ │
|
||
│ └── config/
|
||
│ └── gallery_config.go # 修改:新增灵感瀑布配置项
|
||
│
|
||
├── scripts/
|
||
│ └── migrate_add_material_type.sql # 新增:material_type 字段迁移脚本
|
||
│
|
||
└── gateway/
|
||
├── controller/
|
||
│ └── gallery_controller.go # 修改:新增 GetInspirationFlow 路由处理
|
||
│
|
||
└── router/
|
||
└── router.go # 修改:新增 /api/v1/inspiration-flow 路由
|
||
```
|
||
|
||
---
|
||
|
||
## 十、待确认事项
|
||
|
||
1. **material_type 枚举值**:badge/poster/original,后续按需扩展
|
||
2. **随机排序策略**:ORDER BY RANDOM() 在数据量大时可能有性能问题,后续可考虑按 like_count 随机采样
|
||
3. **展览时长**:默认 6 小时(21600 秒),可通过配置修改
|
||
|
||
## 十一、数据库变更
|
||
|
||
### 11.1 新增字段
|
||
|
||
```sql
|
||
-- assets 表新增 material_type 字段
|
||
ALTER TABLE assets ADD COLUMN material_type VARCHAR(50) DEFAULT 'original';
|
||
|
||
-- 创建索引优化查询
|
||
CREATE INDEX IF NOT EXISTS idx_assets_material_type ON assets(material_type);
|
||
```
|
||
|
||
### 11.2 迁移脚本
|
||
|
||
```sql
|
||
-- 迁移脚本:backend/scripts/migrate_add_material_type.sql
|
||
``` |