fix: Worker 队列补充 DLX args + GetAllComments 加排序和分页限制

backend/cmd/worker/main.go

@@ -9,6 +9,7 @@ import (
 	"feedsystem_video_go/internal/social"
 	"feedsystem_video_go/internal/video"
 	"feedsystem_video_go/internal/worker"
+	mqrabbit "feedsystem_video_go/internal/middleware/rabbitmq"
 	"log"
 	"os"
 	"os/signal"
@@ -194,7 +195,7 @@ func declareSocialTopology(ch *amqp.Channel) error {
 		false,
 		false,
 		false,
-		nil,
+		amqp.Table{"x-dead-letter-exchange": mqrabbit.DLXExchange},
 	)
 	if err != nil {
 		return err
@@ -231,7 +232,7 @@ func declarePopularityTopology(ch *amqp.Channel) error {
 		false,
 		false,
 		false,
-		nil,
+		amqp.Table{"x-dead-letter-exchange": mqrabbit.DLXExchange},
 	)
 	if err != nil {
 		return err
@@ -265,7 +266,7 @@ func declareLikeTopology(ch *amqp.Channel) error {
 		false,
 		false,
 		false,
-		nil,
+		amqp.Table{"x-dead-letter-exchange": mqrabbit.DLXExchange},
 	)
 	if err != nil {
 		return err
@@ -299,7 +300,7 @@ func declareCommentTopology(ch *amqp.Channel) error {
 		false,
 		false,
 		false,
-		nil,
+		amqp.Table{"x-dead-letter-exchange": mqrabbit.DLXExchange},
 	)
 	if err != nil {
 		return err

backend/internal/video/comment_repo.go

@@ -24,7 +24,11 @@ func (r *CommentRepository) DeleteComment(ctx context.Context, comment *Comment)
 
 func (r *CommentRepository) GetAllComments(ctx context.Context, videoID uint) ([]Comment, error) {
 	var comments []Comment
-	err := r.db.WithContext(ctx).Where("video_id = ?", videoID).Find(&comments).Error
+	err := r.db.WithContext(ctx).
+		Where("video_id = ?", videoID).
+		Order("created_at asc").
+		Limit(200).
+		Find(&comments).Error
 	return comments, err
 }