Initial commit

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

models/v/vidmod/update_marker.go

@@ -0,0 +1,59 @@
+package vidmod
+
+import (
+	"time"
+
+	"go.mongodb.org/mongo-driver/bson"
+	"go.mongodb.org/mongo-driver/mongo/options"
+)
+
+type ModuleLatestAt struct {
+	ModuleID string    `bson:"_id"`
+	LatestAt time.Time `bson:"latestAt"`
+}
+
+// LatestReviewAt 返回过滤条件下最近一次审核通过时间。
+func LatestReviewAt(filter bson.M) (*time.Time, error) {
+	var list []VideoModel
+	opts := options.Find().
+		SetSort(bson.D{{Key: "reviewAt", Value: -1}, {Key: "_id", Value: -1}}).
+		SetLimit(1).
+		SetProjection(bson.M{"reviewAt": 1})
+	if err := coll(nil).Find(&list, filter, opts); err != nil {
+		return nil, err
+	}
+	if len(list) == 0 || list[0].ReviewAt.IsZero() {
+		return nil, nil
+	}
+	latest := list[0].ReviewAt
+	return &latest, nil
+}
+
+// LatestReviewAtByModules 批量返回各亚模块最近一次内容审核通过时间。
+func LatestReviewAtByModules(moduleIDs []string) (map[string]time.Time, error) {
+	result := make(map[string]time.Time, len(moduleIDs))
+	if len(moduleIDs) == 0 {
+		return result, nil
+	}
+	pipeline := []bson.M{
+		{"$match": bson.M{
+			"status":   CheckPass,
+			"mId":      bson.M{"$in": moduleIDs},
+			"reviewAt": bson.M{"$gt": time.Time{}},
+		}},
+		{"$group": bson.M{
+			"_id":      "$mId",
+			"latestAt": bson.M{"$max": "$reviewAt"},
+		}},
+	}
+	var rows []ModuleLatestAt
+	if err := coll(nil).Aggregate(&rows, pipeline); err != nil {
+		return nil, err
+	}
+	for _, row := range rows {
+		if row.ModuleID != "" && !row.LatestAt.IsZero() {
+			result[row.ModuleID] = row.LatestAt
+		}
+	}
+	return result, nil
+}