/// <summary>
/// Inserts a file
/// </summary>
/// <returns>File</returns>
public virtual File InsertFile(byte[] fileBinary, string fileName, string fileExtension, string seoFilename, bool isNew = true)
{
fileName = CommonHelper.EnsureNotNull(fileName);
fileName = CommonHelper.EnsureMaximumLength(fileName, 20);
seoFilename = CommonHelper.EnsureMaximumLength(seoFilename, 100);
var file = new File
{
Name = fileName,
Extension = fileExtension,
SeoFilename = seoFilename,
IsNew = isNew,
};
_fileRepository.Insert(file);
//保存文件
SaveFileInSystem(file.Id, fileBinary, fileExtension);
//event notification
_eventPublisher.EntityInserted(file);
return(file);
}
/// <summary>
/// Gets the loaded file binary depending on file storage settings
/// </summary>
/// <param name="file">File</param>
/// <returns>File binary</returns>
public virtual byte[] LoadFileBinary(File file)
{
if (file == null)
{
throw new ArgumentNullException("file");
}
var result = LoadFileFromLocation(file.Id, file.Extension);
return(result);
}
/// <summary>
/// Delete a file on file system
/// </summary>
/// <param name="file">File</param>
protected virtual void DeleteFileOnFileSystem(File file)
{
if (file == null)
{
throw new ArgumentNullException("file");
}
string fileName = string.Format("{0}_0{1}", file.Id.ToString("0000000"), file.Extension);
string filePath = GetFileLocalPath(fileName);
if (System.IO.File.Exists(filePath))
{
System.IO.File.Delete(filePath);
}
}
/// <summary>
/// Deletes a file
/// </summary>
/// <param name="file">File</param>
public virtual void DeleteFile(File file)
{
if (file == null)
{
throw new ArgumentNullException("file");
}
//delete from file system
DeleteFileOnFileSystem(file);
//delete from database
_fileRepository.Delete(file);
//event notification
_eventPublisher.EntityDeleted(file);
}
/// <summary>
/// Get a file URL
/// </summary>
/// <param name="file">File instance</param>
/// <returns>File URL</returns>
public virtual string GetFileUrl(File file)
{
var url = _webHelper.GetStoreLocation() + "content/files/";
byte[] fileBinary = null;
if (file != null)
{
fileBinary = LoadFileBinary(file);
}
if (file == null || fileBinary == null || fileBinary.Length == 0)
{
string fileName = string.Format("{0}_0{1}", file.Id.ToString("0000000"), file.Extension);
url += fileName;
return(url);
}
return(url);
}
