You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
cloudreve/models/file.go

144 lines
4.0 KiB

This file contains ambiguous Unicode characters!

This file contains ambiguous Unicode characters that may be confused with others in your current locale. If your use case is intentional and legitimate, you can safely ignore this warning. Use the Escape button to highlight these characters.

package model
import (
"github.com/HFO4/cloudreve/pkg/util"
"github.com/jinzhu/gorm"
"path"
)
// File 文件
type File struct {
// 表字段
gorm.Model
Name string `gorm:"unique_index:idx_only_one"`
SourceName string
UserID uint `gorm:"index:user_id;unique_index:idx_only_one"`
Size uint64
PicInfo string
FolderID uint `gorm:"index:folder_id;unique_index:idx_only_one"`
PolicyID uint
Dir string `gorm:"size:65536"`
// 关联模型
Policy Policy `gorm:"PRELOAD:false,association_autoupdate:false"`
}
// Create 创建文件记录
func (file *File) Create() (uint, error) {
if err := DB.Create(file).Error; err != nil {
util.Log().Warning("无法插入文件记录, %s", err)
return 0, err
}
return file.ID, nil
}
// GetFileByPathAndName 给定路径(s)、文件名、用户ID查找文件
func GetFileByPathAndName(path string, name string, uid uint) (File, error) {
var file File
result := DB.Where("user_id = ? AND dir = ? AND name=?", uid, path, name).First(&file)
return file, result.Error
}
// GetChildFile 查找目录下子文件
func (folder *Folder) GetChildFile() ([]File, error) {
var files []File
result := DB.Where("folder_id = ?", folder.ID).Find(&files)
return files, result.Error
}
// GetChildFilesOfFolders 批量检索目录子文件
func GetChildFilesOfFolders(folders *[]Folder) ([]File, error) {
// 将所有待删除目录ID抽离以便检索文件
folderIDs := make([]uint, 0, len(*folders))
for _, value := range *folders {
folderIDs = append(folderIDs, value.ID)
}
// 检索文件
var files []File
result := DB.Where("folder_id in (?)", folderIDs).Find(&files)
return files, result.Error
}
// GetPolicy 获取文件所属策略
func (file *File) GetPolicy() *Policy {
if file.Policy.Model.ID == 0 {
file.Policy, _ = GetPolicyByID(file.PolicyID)
}
return &file.Policy
}
// GetFileByPaths 根据给定的文件路径(s)查找文件
func GetFileByPaths(paths []string, uid uint) ([]File, error) {
var files []File
tx := DB
for _, value := range paths {
base := path.Base(value)
dir := path.Dir(value)
tx = tx.Or("dir = ? and name = ? and user_id = ?", dir, base, uid)
}
result := tx.Find(&files)
return files, result.Error
}
// RemoveFilesWithSoftLinks 去除给定的文件列表中有软链接的文件
func RemoveFilesWithSoftLinks(files []File) ([]File, error) {
// 结果值
filteredFiles := make([]File, 0)
// 查询软链接的文件
var filesWithSoftLinks []File
tx := DB
for _, value := range files {
tx = tx.Or("source_name = ? and policy_id = ? and id != ?", value.SourceName, value.PolicyID, value.ID)
}
result := tx.Find(&filesWithSoftLinks)
if result.Error != nil {
return nil, result.Error
}
// 过滤具有软连接的文件
// TODO: 优化复杂度
if len(filesWithSoftLinks) == 0 {
filteredFiles = files
} else {
for i := 0; i < len(files); i++ {
finder := false
for _, value := range filesWithSoftLinks {
if value.PolicyID == files[i].PolicyID && value.SourceName == files[i].SourceName {
finder = true
break
}
}
if !finder {
filteredFiles = append(filteredFiles, files[i])
}
}
}
return filteredFiles, nil
}
// DeleteFileByIDs 根据给定ID批量删除文件记录
func DeleteFileByIDs(ids []uint) error {
result := DB.Where("id in (?)", ids).Unscoped().Delete(&File{})
return result.Error
}
//// GetRecursiveByPaths 根据给定的文件路径(s)递归查找文件
//func GetRecursiveByPaths(paths []string, uid uint) ([]File, error) {
// files := make([]File, 0, len(paths))
// search := util.BuildRegexp(paths, "^", "/", "|")
// result := DB.Where("(user_id = ? and dir REGEXP ?) or (user_id = and dir in (?))", uid, search, uid, paths).Find(&files)
// return files, result.Error
//}
// GetFilesByParentIDs 根据父目录ID查找文件
func GetFilesByParentIDs(ids []uint, uid uint) ([]File, error) {
files := make([]File, 0, len(ids))
result := DB.Where("user_id = ? and folder_id in (?)", uid, ids).Find(&files)
return files, result.Error
}