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97 lines
3.4 KiB
97 lines
3.4 KiB
package model
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import (
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"gin-vue-admin/global"
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"github.com/jinzhu/gorm"
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)
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// file struct, 文件结构体
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type ExaFile struct {
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gorm.Model
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FileName string
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FileMd5 string
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FilePath string
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ExaFileChunk []ExaFileChunk
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ChunkTotal int
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IsFinish bool
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}
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// file chunk struct, 切片结构体
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type ExaFileChunk struct {
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gorm.Model
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ExaFileId uint
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FileChunkNumber int
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FileChunkPath string
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}
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// @title FileCreateComplete
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// @description file creation, 文件合成完成
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// @auth （2020/04/05 20:22 ）
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// @param FileMd5 string
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// @param FileName string
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// @param FilePath string
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// @return error
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func (f *ExaFile) FileCreateComplete(FileMd5 string, FileName string, FilePath string) error {
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var file ExaFile
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upDateFile := make(map[string]interface{})
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upDateFile["FilePath"] = FilePath
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upDateFile["IsFinish"] = true
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err := global.GVA_DB.Where("file_md5 = ? AND file_name = ?", FileMd5, FileName).First(&file).Updates(upDateFile).Error
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return err
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}
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// @title FindOrCreateFile
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// @description Check your file if it does not exist, or return current slice of the file
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// 上传文件时检测当前文件属性，如果没有文件则创建，有则返回文件的当前切片
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// @auth （2020/04/05 20:22 ）
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// @param FileMd5 string
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// @param FileName string
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// @param ChunkTotal int
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// @return err error
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// @return file ExaFile
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func (f *ExaFile) FindOrCreateFile(FileMd5 string, FileName string, ChunkTotal int) (err error, file ExaFile) {
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var cfile ExaFile
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cfile.FileMd5 = FileMd5
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cfile.FileName = FileName
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cfile.ChunkTotal = ChunkTotal
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notHaveSameMd5Finish := global.GVA_DB.Where("file_md5 = ? AND is_finish = ?", FileMd5, true).First(&file).RecordNotFound()
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if notHaveSameMd5Finish {
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err = global.GVA_DB.Where("file_md5 = ? AND file_name = ?", FileMd5, FileName).Preload("ExaFileChunk").FirstOrCreate(&file, cfile).Error
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return err, file
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} else {
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cfile.IsFinish = true
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cfile.FilePath = file.FilePath
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err = global.GVA_DB.Create(&cfile).Error
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return err, cfile
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}
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}
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// @title CreateFileChunk
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// @description create a chunk of the file, 创建文件切片记录
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// @auth （2020/04/05 20:22 ）
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// @param FileChunkPath string
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// @param FileChunkNumber int
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// @return error
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func (f *ExaFile) CreateFileChunk(FileChunkPath string, FileChunkNumber int) error {
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var chunk ExaFileChunk
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chunk.FileChunkPath = FileChunkPath
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chunk.ExaFileId = f.ID
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chunk.FileChunkNumber = FileChunkNumber
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err := global.GVA_DB.Create(&chunk).Error
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return err
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}
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// @title DeleteFileChunk
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// @description delete a chuck of the file, 删除文件切片记录
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// @auth （2020/04/05 20:22 ）
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// @param FileMd5 string
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// @param FileName string
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// @param FilePath string
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// @return error
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func (f *ExaFile) DeleteFileChunk(fileMd5 string, fileName string, filePath string) error {
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var chunks []ExaFileChunk
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var file ExaFile
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err := global.GVA_DB.Where("file_md5 = ? AND file_name = ?", fileMd5, fileName).First(&file).Update("IsFinish", true).Update("file_path", filePath).Error
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err = global.GVA_DB.Where("exa_file_id = ?", file.ID).Delete(&chunks).Unscoped().Error
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return err
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}
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