222 lines
5.4 KiB
Go
222 lines
5.4 KiB
Go
package model
|
||
|
||
import (
|
||
"encoding/gob"
|
||
"github.com/HFO4/cloudreve/pkg/util"
|
||
"github.com/jinzhu/gorm"
|
||
"path"
|
||
"time"
|
||
)
|
||
|
||
// File 文件
|
||
type File struct {
|
||
// 表字段
|
||
gorm.Model
|
||
Name string `gorm:"unique_index:idx_only_one"`
|
||
SourceName string `gorm:"type:text"`
|
||
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
|
||
|
||
// 关联模型
|
||
Policy Policy `gorm:"PRELOAD:false,association_autoupdate:false"`
|
||
|
||
// 数据库忽略字段
|
||
Position string `gorm:"-"`
|
||
}
|
||
|
||
func init() {
|
||
// 注册缓存用到的复杂结构
|
||
gob.Register(File{})
|
||
}
|
||
|
||
// 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
|
||
}
|
||
|
||
// GetChildFile 查找目录下名为name的子文件
|
||
func (folder *Folder) GetChildFile(name string) (*File, error) {
|
||
var file File
|
||
result := DB.Where("folder_id = ? AND name = ?", folder.ID, name).Find(&file)
|
||
|
||
if result.Error == nil {
|
||
file.Position = path.Join(folder.Position, folder.Name)
|
||
}
|
||
return &file, result.Error
|
||
}
|
||
|
||
// GetChildFiles 查找目录下子文件
|
||
func (folder *Folder) GetChildFiles() ([]File, error) {
|
||
var files []File
|
||
result := DB.Where("folder_id = ?", folder.ID).Find(&files)
|
||
|
||
if result.Error == nil {
|
||
for i := 0; i < len(files); i++ {
|
||
files[i].Position = path.Join(folder.Position, folder.Name)
|
||
}
|
||
}
|
||
return files, result.Error
|
||
}
|
||
|
||
// GetFilesByIDs 根据文件ID批量获取文件,
|
||
// UID为0表示忽略用户,只根据文件ID检索
|
||
func GetFilesByIDs(ids []uint, uid uint) ([]File, error) {
|
||
var files []File
|
||
var result *gorm.DB
|
||
if uid == 0 {
|
||
result = DB.Where("id in (?)", ids).Find(&files)
|
||
} else {
|
||
result = DB.Where("id in (?) AND user_id = ?", ids, uid).Find(&files)
|
||
}
|
||
return files, result.Error
|
||
}
|
||
|
||
// GetFilesByKeywords 根据关键字搜索文件,
|
||
// UID为0表示忽略用户,只根据文件ID检索
|
||
func GetFilesByKeywords(uid uint, keywords ...interface{}) ([]File, error) {
|
||
var (
|
||
files []File
|
||
result = DB
|
||
conditions string
|
||
)
|
||
|
||
// 生成查询条件
|
||
for i := 0; i < len(keywords); i++ {
|
||
conditions += "LOWER(name) like ?"
|
||
if i != len(keywords)-1 {
|
||
conditions += " or "
|
||
}
|
||
}
|
||
|
||
if uid != 0 {
|
||
result = result.Where("user_id = ?", uid)
|
||
}
|
||
result = result.Where("("+conditions+")", keywords...).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
|
||
}
|
||
|
||
// 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
|
||
}
|
||
|
||
// 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
|
||
}
|
||
|
||
// Rename 重命名文件
|
||
func (file *File) Rename(new string) error {
|
||
return DB.Model(&file).Update("name", new).Error
|
||
}
|
||
|
||
// UpdatePicInfo 更新文件的图像信息
|
||
func (file *File) UpdatePicInfo(value string) error {
|
||
return DB.Model(&file).Update("pic_info", value).Error
|
||
}
|
||
|
||
// UpdateSize 更新文件的大小信息
|
||
func (file *File) UpdateSize(value uint64) error {
|
||
return DB.Model(&file).Update("size", value).Error
|
||
}
|
||
|
||
// UpdateSourceName 更新文件的源文件名
|
||
func (file *File) UpdateSourceName(value string) error {
|
||
return DB.Model(&file).Update("source_name", value).Error
|
||
}
|
||
|
||
/*
|
||
实现 webdav.FileInfo 接口
|
||
*/
|
||
|
||
func (file *File) GetName() string {
|
||
return file.Name
|
||
}
|
||
|
||
func (file *File) GetSize() uint64 {
|
||
return file.Size
|
||
}
|
||
func (file *File) ModTime() time.Time {
|
||
return file.UpdatedAt
|
||
}
|
||
|
||
func (file *File) IsDir() bool {
|
||
return false
|
||
}
|
||
|
||
func (file *File) GetPosition() string {
|
||
return file.Position
|
||
}
|