protected override object InsertAttachment(IDbDataSource host, IFieldUpload upload,
IFieldValueAccessor accessor, string path)
{
string fileName = Path.GetFileName(path);
string newPath = Path.Combine(fUploadPath, fileName);
accessor.SetValue(upload.ServerPathField, newPath);
accessor.SetValue(upload.ContentField, fVirtualPath + fileName);
CopyFile(path, newPath);
return(null);
}
protected override object UpdateAttachment(IDbDataSource host, IFieldUpload upload,
IFieldValueAccessor accessor, string oldPath, string newPath)
{
string fileName = Path.GetFileName(newPath);
accessor.SetValue(upload.ContentField, fVirtualPath + fileName);
//Add By Gaolq 2018/8/15
string toPath = Path.Combine(fUploadPath, fileName);
accessor.SetValue(upload.ServerPathField, toPath);
CopyFile(newPath, toPath);
return(null);
}
protected override object DeleteAttachment(IDbDataSource host, IFieldUpload upload,
IFieldValueAccessor accessor, string path)
{
try
{
accessor.SetValue(upload.ContentField, DBNull.Value);
File.Delete(path);
}
catch
{
}
return(null);
}
protected override object InsertAttachment(IDbDataSource host, IFieldUpload upload,
IFieldValueAccessor accessor, string path)
{
AttachmentResolver resolver = new AttachmentResolver(host);
resolver.SetCommands(AdapterCommand.Insert);
byte[] fileData = File.ReadAllBytes(path);
accessor.SetValue(upload.ContentField, resolver.Insert(
accessor[upload.FileNameField].ToString(), path,
accessor[upload.MimeTypeField].ToString(), fileData, false));
fDelFile = path;
return(resolver);
}
protected override object UpdateAttachment(IDbDataSource host, IFieldUpload upload,
IFieldValueAccessor accessor, string oldPath, string newPath)
{
if (UseAliyunUploadMode)
{
FileConfig temp = FileConfig.ReadFromJson(newPath);
string json = accessor.GetValue(upload.ContentField);
FileConfig config = FileConfig.ReadFromJson(json);
accessor.SetValue(upload.ServerPathField, config.AccessUrl);
temp.RemoveTo(config);
}
else
{
string json = accessor.GetValue(upload.ContentField);
FileConfig config = FileConfig.ReadFromJson(json);
accessor.SetValue(upload.ServerPathField, config.AccessUrl);
string originFileName = accessor.GetValue(upload.FileNameField);
config.UploadFile(newPath, originFileName);
}
return(null);
}
protected override object DeleteAttachment(IDbDataSource host, IFieldUpload upload,
IFieldValueAccessor accessor, string path)
{
try
{
var json = accessor.GetValue(upload.ContentField);
accessor.SetValue(upload.ContentField, DBNull.Value);
FileConfig config = FileConfig.ReadFromJson(json);
config.Delete();
}
catch
{
}
return(null);
}
protected override object InsertAttachment(IDbDataSource host, IFieldUpload upload,
IFieldValueAccessor accessor, string path)
{
if (UseAliyunUploadMode)
{
FileConfig temp = FileConfig.ReadFromJson(path);
FileConfig config = new FileConfig(BucketName, temp.ObjectName);
accessor.SetValue(upload.ServerPathField, config.AccessUrl);
accessor.SetValue(upload.ContentField, config.ToString());
temp.RemoveTo(config);
}
else
{
string fileName = Path.GetFileNameWithoutExtension(path);
FileConfig config = new FileConfig(BucketName, fileName);
accessor.SetValue(upload.ServerPathField, config.AccessUrl);
accessor.SetValue(upload.ContentField, config.ToString());
string originFileName = accessor.GetValue(upload.FileNameField);
config.UploadFile(path, originFileName);
}
return(null);
}
public object Process(IDbDataSource host, IFieldUpload upload, IFieldValueAccessor provider, UpdateKind kind)
{
switch (kind)
{
case UpdateKind.Insert:
string path = provider[upload.ServerPathField].ToString();
if (!string.IsNullOrEmpty(path))
{
return(InsertAttachment(host, upload, provider, path));
}
break;
case UpdateKind.Update:
string originalPath = provider.GetOriginValue(upload.ServerPathField).ToString();
string newPath = provider[upload.ServerPathField].ToString();
if (originalPath != newPath)
{
if (string.IsNullOrEmpty(originalPath))
{
// 原先没有，当前实际是新建
return(InsertAttachment(host, upload, provider, newPath));
}
else if (string.IsNullOrEmpty(newPath))
{
// 现在没有，当前实际是删除
var result = DeleteAttachment(host, upload, provider, originalPath);
provider.SetValue(upload.FileNameField, DBNull.Value);
return(result);
}
else
{
// 原先和现在都有，当前实际是覆盖
return(UpdateAttachment(host, upload, provider, originalPath, newPath));
}
}
break;
case UpdateKind.Delete:
if (provider[upload.ContentField] != DBNull.Value)
{
return(DeleteAttachment(host, upload, provider,
provider[upload.ServerPathField].ToString()));
}
break;
}
return(null);
}