基础架构变更 增加模块化

server/service/example/exa_file_upload_download.go

@@ -0,0 +1,91 @@
+package example
+
+import (
+	"errors"
+	"gin-vue-admin/global"
+	"gin-vue-admin/model/common/request"
+	"gin-vue-admin/model/example"
+	"gin-vue-admin/utils/upload"
+	"mime/multipart"
+	"strings"
+)
+
+//@author: [piexlmax](https://github.com/piexlmax)
+//@function: Upload
+//@description: 创建文件上传记录
+//@param: file model.ExaFileUploadAndDownload
+//@return: error
+
+func (e *FileUploadAndDownloadService) Upload(file example.ExaFileUploadAndDownload) error {
+	return global.GVA_DB.Create(&file).Error
+}
+
+//@author: [piexlmax](https://github.com/piexlmax)
+//@function: FindFile
+//@description: 删除文件切片记录
+//@param: id uint
+//@return: error, model.ExaFileUploadAndDownload
+
+func (e *FileUploadAndDownloadService) FindFile(id uint) (error, example.ExaFileUploadAndDownload) {
+	var file example.ExaFileUploadAndDownload
+	err := global.GVA_DB.Where("id = ?", id).First(&file).Error
+	return err, file
+}
+
+//@author: [piexlmax](https://github.com/piexlmax)
+//@function: DeleteFile
+//@description: 删除文件记录
+//@param: file model.ExaFileUploadAndDownload
+//@return: err error
+
+func (e *FileUploadAndDownloadService) DeleteFile(file example.ExaFileUploadAndDownload) (err error) {
+	var fileFromDb example.ExaFileUploadAndDownload
+	err, fileFromDb = e.FindFile(file.ID)
+	oss := upload.NewOss()
+	if err = oss.DeleteFile(fileFromDb.Key); err != nil {
+		return errors.New("文件删除失败")
+	}
+	err = global.GVA_DB.Where("id = ?", file.ID).Unscoped().Delete(&file).Error
+	return err
+}
+
+//@author: [piexlmax](https://github.com/piexlmax)
+//@function: GetFileRecordInfoList
+//@description: 分页获取数据
+//@param: info requset.PageInfo
+//@return: err error, list interface{}, total int64
+
+func (e *FileUploadAndDownloadService) GetFileRecordInfoList(info request.PageInfo) (err error, list interface{}, total int64) {
+	limit := info.PageSize
+	offset := info.PageSize * (info.Page - 1)
+	db := global.GVA_DB
+	var fileLists []example.ExaFileUploadAndDownload
+	err = db.Find(&fileLists).Count(&total).Error
+	err = db.Limit(limit).Offset(offset).Order("updated_at desc").Find(&fileLists).Error
+	return err, fileLists, total
+}
+
+//@author: [piexlmax](https://github.com/piexlmax)
+//@function: UploadFile
+//@description: 根据配置文件判断是文件上传到本地或者七牛云
+//@param: header *multipart.FileHeader, noSave string
+//@return: err error, file model.ExaFileUploadAndDownload
+
+func (e *FileUploadAndDownloadService) UploadFile(header *multipart.FileHeader, noSave string) (err error, file example.ExaFileUploadAndDownload) {
+	oss := upload.NewOss()
+	filePath, key, uploadErr := oss.UploadFile(header)
+	if uploadErr != nil {
+		panic(err)
+	}
+	if noSave == "0" {
+		s := strings.Split(header.Filename, ".")
+		f := example.ExaFileUploadAndDownload{
+			Url:  filePath,
+			Name: header.Filename,
+			Tag:  s[len(s)-1],
+			Key:  key,
+		}
+		return e.Upload(f), f
+	}
+	return
+}