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backend/internal/model/report.go
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refactor: improve system stability, performance, and code structure
This commit introduces several architectural improvements and optimizations across the codebase:

- **Performance & Reliability**:
  - Implemented Redis pipelining in `ConversationCache.CacheMessage` to reduce network round-trips.
  - Added a circuit breaker to the JPush client to prevent cascading failures.
  - Introduced batch deletion and batch member addition capabilities in repositories.
  - Added message idempotency support using `client_msg_id` and a Redis-based cache.
  - Optimized WebSocket handling with connection limits (total and per-user) and improved error logging.

- **Code Refactoring**:
  - Refactored `Router` to use a `RouterDeps` struct, simplifying the constructor and improving maintainability.
  - Unified model ID generation logic using new `id_helper.go` (supporting UUID and Snowflake).
  - Standardized JSON serialization/deserialization in models using `json_helper.go`.
  - Refactored DTO conversion logic, specifically for `UserResponse` (using functional options) and `Report` responses.
  - Removed redundant/deprecated DTOs like `PostDetailResponse` and `TradeItemDetailResponse`.

- **Cache Improvements**:
  - Enhanced `LayeredCache` with `SetRaw` to avoid double-encoding when promoting values from Redis to local cache.
  - Added `DeleteBatch` support to the cache interface.

- **Other Changes**:
  - Cleaned up `config.go` by removing redundant default values and explicit environment variable overrides.
  - Improved WebSocket registration flow to handle connection limits gracefully.
2026-05-04 13:07:03 +08:00

77 lines
2.8 KiB
Go

package model
import (
"time"
"gorm.io/gorm"
)
// ReportTargetType 举报目标类型
type ReportTargetType string
const (
ReportTargetTypePost ReportTargetType = "post" // 帖子
ReportTargetTypeComment ReportTargetType = "comment" // 评论
ReportTargetTypeMessage ReportTargetType = "message" // 消息
)
// ReportStatus 举报处理状态
type ReportStatus string
const (
ReportStatusPending ReportStatus = "pending" // 待处理
ReportStatusProcessing ReportStatus = "processing" // 处理中
ReportStatusResolved ReportStatus = "resolved" // 已确认违规
ReportStatusRejected ReportStatus = "rejected" // 已驳回
)
// ReportReason 举报原因类型
type ReportReason string
const (
ReportReasonSpam ReportReason = "spam" // 垃圾广告
ReportReasonInappropriate ReportReason = "inappropriate" // 违规内容
ReportReasonHarassment ReportReason = "harassment" // 辱骂/攻击
ReportReasonMisinformation ReportReason = "misinformation" // 虚假信息
ReportReasonOther ReportReason = "other" // 其他
)
// Report 举报实体
type Report struct {
ID string `json:"id" gorm:"type:varchar(36);primaryKey"`
ReporterID string `json:"reporter_id" gorm:"type:varchar(36);index;index:idx_reports_reporter_status,priority:1;not null"`
TargetType ReportTargetType `json:"target_type" gorm:"type:varchar(20);index;index:idx_reports_target_type_id,priority:1;index:idx_reports_target_status,priority:1;not null"`
TargetID string `json:"target_id" gorm:"type:varchar(36);index:idx_reports_target_type_id,priority:2;index:idx_reports_target,priority:1;not null"`
Reason ReportReason `json:"reason" gorm:"type:varchar(30);not null"`
Description string `json:"description" gorm:"type:text"`
Status ReportStatus `json:"status" gorm:"type:varchar(20);default:pending;index:idx_reports_status_created,priority:1;index:idx_reports_reporter_status,priority:2;index:idx_reports_target_status,priority:2"`
HandledBy *string `json:"handled_by" gorm:"type:varchar(36);index"`
HandledAt *time.Time `json:"handled_at" gorm:"type:timestamp"`
Result *string `json:"result" gorm:"type:text"`
// 软删除
DeletedAt gorm.DeletedAt `json:"-" gorm:"index"`
// 时间戳
CreatedAt time.Time `json:"created_at" gorm:"autoCreateTime;index:idx_reports_status_created,priority:2,sort:desc"`
UpdatedAt time.Time `json:"updated_at" gorm:"autoUpdateTime"`
}
// BeforeCreate 创建前生成UUID
func (r *Report) BeforeCreate(tx *gorm.DB) error {
SetUUIDIfEmpty(&r.ID)
return nil
}
// TableName 指定表名
func (Report) TableName() string {
return "reports"
}
// ReportStats 举报统计(用于缓存或查询结果)
type ReportStats struct {
TargetType ReportTargetType
TargetID string
ReportCount int
IsHidden bool
}