Question

The changes to the database were committed successfully, but an error occurred while updating the object context. The ObjectContext might be in an inconsistent state. Inner exception message: AcceptChanges cannot continue because the object’s key values conflict with another object in the ObjectStateManager. Make sure that the key values are unique before calling AcceptChanges.

Is the error message i get. here are the two functions i use…

    public IList<string> GenerateVersions(decimal id, decimal fId, string folderName, string filename, string objFile)
    {
        List<string> generatedFiles = new List<string>();

        foreach (var tCmdSets in db.IMG_SETTINGS_CMDSETS.Where("it.SETTINGS_FOLDER_ID = @folderid", new ObjectParameter("folderid", id)))
        {
            var strDestinationPath = ImageResizer.Util.PathUtils.RemoveExtension(Path.Combine(tmpDefaultFolder, tCmdSets.SETTINGS_CMDSET_DESTINATION, filename));
            ResizeSettings objResizeCommand = new ResizeSettings(tCmdSets.SETTINGS_CMDSET_COMMAND);

            var strCreatedFile = ImageBuilder.Current.Build(objFile, strDestinationPath, objResizeCommand, false, true);
            generatedFiles.Add("### File created: (" + folderName + " » " + tCmdSets.SETTINGS_CMDSET_NAME + " ») " + Path.GetFileName(strCreatedFile));

            IMG_UPLOAD_GENERATED_FILES tObjGenerated = new IMG_UPLOAD_GENERATED_FILES();

            tObjGenerated.UPLOAD_GENERATED_FILE_NAME = Path.GetFileName(strCreatedFile);
            tObjGenerated.UPLOAD_GENERATED_PATH = Path.GetDirectoryName(strCreatedFile);
            tObjGenerated.SETTINGS_CMDSET_ID = tCmdSets.SETTINGS_CMDSET_ID;
            tObjGenerated.UPLOAD_FILE_ID = fId;

            dbHandler.IMG_UPLOAD_GENERATED_FILES.AddObject(tObjGenerated);
            dbHandler.SaveChanges();
        }
        return generatedFiles;
    }

    public ActionResult UploadBulkFiles(decimal id)
    {
        IMG_SETTINGS_FOLDERS img_settings_folders = db.IMG_SETTINGS_FOLDERS.Single(i => i.SETTINGS_FOLDER_ID == id);
        string strBulkDirectory = Path.Combine(tmpDefaultFolder, img_settings_folders.SETTINGS_FOLDER_BULK);
        string[] objFiles = Directory.GetFiles(strBulkDirectory);
        List<string> lstOuput = new List<string>();

        foreach (var tFile in objFiles)
        {
            System.IO.File.Move(tFile, Path.Combine(tmpDefaultFolder, "masters", img_settings_folders.SETTINGS_FOLDER_NAME, Path.GetFileName(tFile)));

            lstOuput.Add("### File moved to masters (" + img_settings_folders.SETTINGS_FOLDER_NAME + " ») " + Path.GetFileName(tFile));

            IMG_UPLOAD_FILES tObjUploadedFile = new IMG_UPLOAD_FILES();

            tObjUploadedFile.UPLOAD_FILE_NAME = Path.GetFileName(tFile);
            tObjUploadedFile.SETTINGS_FOLDER_ID = img_settings_folders.SETTINGS_FOLDER_ID;

            dbHandler.IMG_UPLOAD_FILES.AddObject(tObjUploadedFile);
            dbHandler.SaveChanges();

            var objGeneratedFiles = GenerateVersions(img_settings_folders.SETTINGS_FOLDER_ID,tObjUploadedFile.UPLOAD_FILE_ID, img_settings_folders.SETTINGS_FOLDER_NAME, Path.GetFileName(tFile), Path.Combine(tmpDefaultFolder, "masters", img_settings_folders.SETTINGS_FOLDER_NAME, Path.GetFileName(tFile)));
            lstOuput.AddRange(objGeneratedFiles);
        }
        if (lstOuput.Count > 0)
        {
            return PartialView("UploadSingleFile", lstOuput);
        }
        else
        {
            return PartialView("NoUploads");
        }
    }

DATA MODEL

IMG_UPLOAD_FILE

• UPLOAD_FILE_ID (PK)
• UPLOAD_FILE_NAME
• SETTINGS_FOLDER_ID

IMG_UPLOAD_GENERATED_FILES

• UPLOAD_GENERATED_FILE_ID (PK)
• UPLOAD_GENERATED_FILE_NAME
• UPLOAD_GENERATED_FILE_PATH
• SETTINGS_CMDSET_ID
• UPLOAD_FILE_ID

Answer 1

The closest I can come to finding an answer is:

Because Oracle uses a Sequence + Trigger to make “Auto Ident” values, it seems like when the entity framework adds an object at saves it, the value return is still 0, because the trigger/sequence haven’t updated it yet.

Because of the 0 number, the ObjectMannager will think that multiple objects with the entity key of 0 are in conflict.

I don’t have a “bullet proof” solutions, but have rewritten my solutions to handle it another way.

\T