Feat: copy files and folders

models/folder.go

@@ -108,28 +108,63 @@ func DeleteFolderByIDs(ids []uint) error {
 	return result.Error
 }
 
-//func (folder *Folder)GetPositionAbsolute()string{
-//	return path.Join(folder.Position,folder.Name)
-//}
+// MoveOrCopyFileTo 将此目录下的files移动或复制至dstFolder，
+// 返回此操作新增的容量
+func (folder *Folder) MoveOrCopyFileTo(files []string, dstFolder *Folder, isCopy bool) (uint64, error) {
+	// 已复制文件的总大小
+	var copiedSize uint64
+
+	if isCopy {
+		// 检索出要复制的文件
+		var originFiles = make([]File, 0, len(files))
+		if err := DB.Where(
+			"name in (?) and user_id = ? and dir = ?",
+			files,
+			folder.OwnerID,
+			folder.PositionAbsolute,
+		).Find(&originFiles).Error; err != nil {
+			return 0, err
+		}
+
+		// 复制文件记录
+		for _, oldFile := range originFiles {
+			oldFile.Model = gorm.Model{}
+			oldFile.FolderID = dstFolder.ID
+			oldFile.Dir = dstFolder.PositionAbsolute
+
+			if err := DB.Create(&oldFile).Error; err != nil {
+				return copiedSize, err
+			}
+
+			copiedSize += oldFile.Size
+		}
+
+	} else {
+		// 更改顶级要移动文件的父目录指向
+		err := DB.Model(File{}).Where(
+			"name in (?) and user_id = ? and dir = ?",
+			files,
+			folder.OwnerID,
+			folder.PositionAbsolute,
+		).
+			Update(map[string]interface{}{
+				"folder_id": dstFolder.ID,
+				"dir":       dstFolder.PositionAbsolute,
+			}).
+			Error
+		if err != nil {
+			return 0, err
+		}
 
-// MoveFileTo 将此目录下的文件移动至dstFolder
-func (folder *Folder) MoveFileTo(files []string, dstFolder *Folder) error {
-	// 更改顶级要移动文件的父目录指向
-	err := DB.Model(File{}).Where("name in (?) and user_id = ? and dir = ?", files, folder.OwnerID, folder.PositionAbsolute).
-		Update(map[string]interface{}{
-			"folder_id": dstFolder.ID,
-			"dir":       dstFolder.PositionAbsolute,
-		}).
-		Error
-	if err != nil {
-		return err
 	}
-	return nil
+
+	return copiedSize, nil
 
 }
 
-// RenameFolderTo 将folder目录下的dirs子目录复制或移动到dstFolder
-func (folder *Folder) RenameFolderTo(dirs []string, dstFolder *Folder, isCopy bool) error {
+// MoveOrCopyFolderTo 将folder目录下的dirs子目录复制或移动到dstFolder，
+// 返回此过程中增加的容量
+func (folder *Folder) MoveOrCopyFolderTo(dirs []string, dstFolder *Folder, isCopy bool) (uint64, error) {
 	// 生成绝对路径
 	fullDirs := make([]string, len(dirs))
 	for i := 0; i < len(dirs); i++ {
@@ -146,13 +181,15 @@ func (folder *Folder) RenameFolderTo(dirs []string, dstFolder *Folder, isCopy bo
 		// 检索被移动的目录的所有子目录
 		toBeMoved, err := GetRecursiveChildFolder([]string{parentDir}, folder.OwnerID, true)
 		if err != nil {
-			return err
+			return 0, err
 		}
 		subFolders[key] = toBeMoved
 	}
 
 	// 记录复制要用到的父目录源路径和新的ID
 	var copyCache = make(map[string]uint)
+	// 记录已复制文件的容量
+	var newUsedStorage uint64
 
 	var err error
 	if isCopy {
@@ -160,7 +197,7 @@ func (folder *Folder) RenameFolderTo(dirs []string, dstFolder *Folder, isCopy bo
 		// TODO:支持多目录
 		origin := Folder{}
 		if DB.Where("position_absolute in (?) and owner_id = ?", fullDirs, folder.OwnerID).Find(&origin).Error != nil {
-			return errors.New("找不到原始目录")
+			return 0, errors.New("找不到原始目录")
 		}
 
 		oldPosition := origin.PositionAbsolute
@@ -174,7 +211,7 @@ func (folder *Folder) RenameFolderTo(dirs []string, dstFolder *Folder, isCopy bo
 		origin.Model = gorm.Model{}
 
 		if err := DB.Create(&origin).Error; err != nil {
-			return err
+			return 0, err
 		}
 
 		// 记录新的主键
@@ -185,14 +222,20 @@ func (folder *Folder) RenameFolderTo(dirs []string, dstFolder *Folder, isCopy bo
 		// 更改顶级要移动目录的父目录指向
 		err = DB.Model(Folder{}).Where("position_absolute in (?) and owner_id = ?", fullDirs, folder.OwnerID).
 			Update(map[string]interface{}{
-				"parent_id":         dstFolder.ID,
-				"position":          dstFolder.PositionAbsolute,
-				"position_absolute": gorm.Expr(util.BuildConcat("?", "name", conf.DatabaseConfig.Type), util.FillSlash(dstFolder.PositionAbsolute)),
+				"parent_id": dstFolder.ID,
+				"position":  dstFolder.PositionAbsolute,
+				"position_absolute": gorm.Expr(
+					util.BuildConcat("?",
+						"name",
+						conf.DatabaseConfig.Type,
+					),
+					util.FillSlash(dstFolder.PositionAbsolute),
+				),
 			}).Error
 	}
 
 	if err != nil {
-		return err
+		return 0, err
 	}
 
 	// 更新被移动的目录递归的子目录和文件
@@ -200,6 +243,12 @@ func (folder *Folder) RenameFolderTo(dirs []string, dstFolder *Folder, isCopy bo
 		ignorePath := fullDirs[parKey]
 		// TODO 找到更好的修改办法
 
+		// 抽离所有子目录的ID
+		var subFolderIDs = make([]uint, len(toBeMoved))
+		for key, subFolder := range toBeMoved {
+			subFolderIDs[key] = subFolder.ID
+		}
+
 		if isCopy {
 			index := 0
 			for len(toBeMoved) != 0 {
@@ -213,7 +262,10 @@ func (folder *Folder) RenameFolderTo(dirs []string, dstFolder *Folder, isCopy bo
 
 				// 如果缓存中存在父目录ID，执行复制,并删除
 				if newID, ok := copyCache[toBeMoved[innerIndex].Position]; ok {
+					// 记录目录原来的路径
 					oldPosition := toBeMoved[innerIndex].PositionAbsolute
+
+					// 设置目录i虚拟的路径
 					newPosition := path.Join(
 						dstFolder.PositionAbsolute, strings.Replace(
 							toBeMoved[innerIndex].Position,
@@ -224,8 +276,10 @@ func (folder *Folder) RenameFolderTo(dirs []string, dstFolder *Folder, isCopy bo
 					toBeMoved[innerIndex].ParentID = newID
 					toBeMoved[innerIndex].Model = gorm.Model{}
 					if err := DB.Create(&toBeMoved[innerIndex]).Error; err != nil {
-						return err
+						return 0, err
 					}
+
+					// 将当前目录老路径和新ID保存，以便后续待处理目录文件使用
 					copyCache[oldPosition] = toBeMoved[innerIndex].Model.ID
 					toBeMoved = append(toBeMoved[:innerIndex], toBeMoved[innerIndex+1:]...)
 				}
@@ -235,7 +289,13 @@ func (folder *Folder) RenameFolderTo(dirs []string, dstFolder *Folder, isCopy bo
 			for _, subFolder := range toBeMoved {
 				// 每个分组的第一个目录已经变更指向，直接跳过
 				if subFolder.PositionAbsolute != ignorePath {
-					newPosition := path.Join(dstFolder.PositionAbsolute, strings.Replace(subFolder.Position, folder.PositionAbsolute, "", 1))
+					newPosition := path.Join(dstFolder.PositionAbsolute,
+						strings.Replace(subFolder.Position,
+							folder.PositionAbsolute,
+							"",
+							1,
+						),
+					)
 					// 移动
 					DB.Model(&subFolder).Updates(map[string]interface{}{
 						"position":          newPosition,
@@ -245,26 +305,38 @@ func (folder *Folder) RenameFolderTo(dirs []string, dstFolder *Folder, isCopy bo
 			}
 		}
 
-		// 抽离所有子目录的ID
-		var subFolderIDs = make([]uint, len(toBeMoved))
-		for key, subFolder := range toBeMoved {
-			subFolderIDs[key] = subFolder.ID
-		}
-
 		// 获取子目录下的所有子文件
 		toBeMovedFile, err := GetFilesByParentIDs(subFolderIDs, folder.OwnerID)
 		if err != nil {
-			return err
+			return 0, err
 		}
 
+		// 开始复制或移动子文件
 		for _, subFile := range toBeMovedFile {
-			newPosition := path.Join(dstFolder.PositionAbsolute, strings.Replace(subFile.Dir, folder.PositionAbsolute, "", 1))
+			newPosition := path.Join(dstFolder.PositionAbsolute,
+				strings.Replace(
+					subFile.Dir,
+					folder.PositionAbsolute,
+					"",
+					1,
+				),
+			)
 			if isCopy {
 				// 复制
+				if newID, ok := copyCache[subFile.Dir]; ok {
+					subFile.FolderID = newID
+				} else {
+					util.Log().Debug("无法找到文件的父目录ID，原始路径：%s", subFile.Dir)
+				}
 				subFile.Dir = newPosition
 				subFile.Model = gorm.Model{}
+
+				// 复制文件记录
 				if err := DB.Create(&subFile).Error; err != nil {
 					util.Log().Warning("无法复制子文件：%s", err)
+				} else {
+					// 记录此文件容量
+					newUsedStorage += subFile.Size
 				}
 			} else {
 				DB.Model(&subFile).Updates(map[string]interface{}{
@@ -276,6 +348,6 @@ func (folder *Folder) RenameFolderTo(dirs []string, dstFolder *Folder, isCopy bo
 
 	}
 
-	return nil
+	return newUsedStorage, nil
 
 }

models/user.go

@@ -85,6 +85,16 @@ func (user *User) IncreaseStorage(size uint64) bool {
 	return false
 }
 
+// IncreaseStorageWithoutCheck 忽略可用容量，增加用户已用容量
+func (user *User) IncreaseStorageWithoutCheck(size uint64) {
+	if size == 0 {
+		return
+	}
+	user.Storage += size
+	DB.Model(user).UpdateColumn("storage", gorm.Expr("storage + ?", size))
+
+}
+
 // GetRemainingCapacity 获取剩余配额
 func (user *User) GetRemainingCapacity() uint64 {
 	if user.Group.MaxStorage <= user.Storage {