改进 删除 Post 逻辑

internal/service/post/posts.go

@@ -59,7 +59,23 @@ func (s *Service) CreatePost(c context.Context, applicationEntity *entity.Applic
 }
 
 func (s *Service) DeletePost(c context.Context, post *entity.Post) error {
-	_, err := s.dao.WithContext(c).Post.Delete(post)
+	// 删除所有关联的标签
+	_, err := s.dao.UserLike.Where(s.dao.UserLike.PostId.Eq(post.Id.Uint())).Delete()
+	if err != nil {
+		return err
+	}
+
+	_, err = s.dao.PostTag.Where(s.dao.PostTag.PostId.Eq(post.Id.Uint())).Delete()
+	if err != nil {
+		return err
+	}
+
+	err = s.RemovePostEmbedding(c, post)
+	if err != nil {
+		return err
+	}
+
+	_, err = s.dao.WithContext(c).Post.Delete(post)
 
 	return err
 }

internal/service/post/tags.go

@@ -2,6 +2,7 @@ package post
 
 import (
 	"context"
+	"fmt"
 	entity2 "github.com/milvus-io/milvus-sdk-go/v2/entity"
 	"leafdev.top/Ecosystem/recommender/internal/entity"
 )
@@ -142,3 +143,10 @@ func (s *Service) SavePostEmbedding(c context.Context, post *entity.Post) error
 
 	return err
 }
+
+func (s *Service) RemovePostEmbedding(c context.Context, post *entity.Post) error {
+	var filter = fmt.Sprintf(`psot_id == %d`, post.Id)
+	errDelete := s.milvus.Delete(c, s.config.Milvus.PostCollection, "", filter)
+
+	return errDelete
+}