Initial commit

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

models/v/noticerecdmod/trend.go

@@ -0,0 +1,42 @@
+package noticerecdmod
+
+import "time"
+
+// 动态类型
+type TrendType string
+
+const (
+	Fans TrendType = "fans" //粉丝
+	Like TrendType = "like" //点赞
+	Cmet TrendType = "cmet" //评论
+	Itte TrendType = "itte" //互动
+)
+
+// UpdateTrendReadTime 更新动态的阅读时间
+func UpdateTrendReadTime(trend TrendType, uid uint64, readAt time.Time) error {
+	filter := M{
+		"uid":        uid,
+		"noticeCode": trend,
+	}
+	noticeRecord := NoticeRecord{}
+	if err := coll(nil).FindOne(&noticeRecord, filter); err != nil {
+		return err
+	}
+	if noticeRecord.LastReadAt.After(readAt) {
+		return nil
+	}
+	filter["lastReadAt"] = M{"$lt": readAt}
+	update := M{
+		"$setOnInsert": M{
+			"uid":        uid,
+			"noticeCode": trend,
+			"createdAt":  time.Now(),
+		},
+		"$set": M{
+			"lastReadAt": readAt,
+			"updatedAt":  time.Now(),
+		},
+	}
+	_, err := coll(nil).UpsertOne(filter, update)
+	return err
+}