| | |
| | | }; |
| | | } |
| | | |
| | | /// <summary> |
| | | /// 上传图片到检验项目的PICTURE字段 |
| | | /// </summary> |
| | | /// <param name="id">检验项目ID</param> |
| | | /// <param name="imageBytes">图片字节数组</param> |
| | | /// <param name="fileName">原始文件名</param> |
| | | /// <param name="createBy">创建人</param> |
| | | /// <returns>操作结果</returns> |
| | | public (int status, string message) UploadImageToPicture(decimal id, byte[] imageBytes, string fileName, string createBy) |
| | | { |
| | | try |
| | | { |
| | | if (imageBytes == null || imageBytes.Length == 0) |
| | | { |
| | | return (1, "图片数据为空"); |
| | | } |
| | | |
| | | if (string.IsNullOrEmpty(fileName)) |
| | | { |
| | | return (1, "文件名为空"); |
| | | } |
| | | |
| | | // 验证图片格式 |
| | | var allowedExtensions = new[] { ".jpg", ".jpeg", ".png", ".gif", ".bmp", ".webp" }; |
| | | var extension = System.IO.Path.GetExtension(fileName).ToLower(); |
| | | if (!allowedExtensions.Contains(extension)) |
| | | { |
| | | return (1, "不支持的图片格式,仅支持:jpg, jpeg, png, gif, bmp, webp"); |
| | | } |
| | | |
| | | // 验证图片大小(限制为5MB) |
| | | if (imageBytes.Length > 5 * 1024 * 1024) |
| | | { |
| | | return (1, "图片大小不能超过5MB"); |
| | | } |
| | | |
| | | // 生成时间戳文件名,格式:1746945271304.jpg |
| | | var timestamp = DateTimeOffset.Now.ToUnixTimeMilliseconds(); |
| | | var timestampFileName = $"{timestamp}{extension}"; |
| | | |
| | | var result = SqlSugarHelper.UseTransactionWithOracle(db => |
| | | { |
| | | // 检查检验项目是否存在 |
| | | var exists = db.Queryable<QsQaItemXj01>() |
| | | .Where(s => s.Id == id) |
| | | .Any(); |
| | | |
| | | if (!exists) |
| | | { |
| | | throw new Exception("检验项目不存在"); |
| | | } |
| | | |
| | | // 更新PICTURE字段(LONG RAW类型)和PICTURENAME字段(时间戳文件名) |
| | | var updateResult = db.Updateable<QsQaItemXj01>() |
| | | .SetColumns(s => s.Picture == imageBytes) |
| | | .SetColumns(s => s.Picturename == timestampFileName) |
| | | .Where(s => s.Id == id) |
| | | .ExecuteCommand(); |
| | | |
| | | return updateResult; |
| | | }); |
| | | |
| | | if (result > 0) |
| | | { |
| | | return (0, "图片保存成功"); |
| | | } |
| | | else |
| | | { |
| | | return (1, "图片保存失败,未找到对应的检验项目"); |
| | | } |
| | | } |
| | | catch (Exception ex) |
| | | { |
| | | return (1, $"图片保存失败:{ex.Message}"); |
| | | } |
| | | } |
| | | |
| | | /// <summary> |
| | | /// 删除检验项目的图片 |
| | | /// </summary> |
| | | /// <param name="id">检验项目ID</param> |
| | | /// <returns>操作结果</returns> |
| | | public (int status, string message) DeleteImageFromPicture(decimal id) |
| | | { |
| | | try |
| | | { |
| | | var result = SqlSugarHelper.UseTransactionWithOracle(db => |
| | | { |
| | | // 检查检验项目是否存在 |
| | | var exists = db.Queryable<QsQaItemXj01>() |
| | | .Where(s => s.Id == id) |
| | | .Any(); |
| | | |
| | | if (!exists) |
| | | { |
| | | throw new Exception("检验项目不存在"); |
| | | } |
| | | |
| | | // 清空PICTURE字段和PICTURENAME字段 |
| | | var updateResult = db.Updateable<QsQaItemXj01>() |
| | | .SetColumns(s => s.Picture == null) |
| | | .SetColumns(s => s.Picturename == null) |
| | | .Where(s => s.Id == id) |
| | | .ExecuteCommand(); |
| | | |
| | | return updateResult; |
| | | }); |
| | | |
| | | if (result > 0) |
| | | { |
| | | return (0, "图片删除成功"); |
| | | } |
| | | else |
| | | { |
| | | return (1, "图片删除失败,未找到对应的检验项目"); |
| | | } |
| | | } |
| | | catch (Exception ex) |
| | | { |
| | | return (1, $"图片删除失败:{ex.Message}"); |
| | | } |
| | | } |
| | | |
| | | |
| | | } |