public user_share_file addFiles()
{
var newFile = new file()
{
name = "test222",
type = 1,
url = "test222",
};
using (FileEntitiesFinal entities = new FileEntitiesFinal())
{
entities.Entry <file>(newFile).State = System.Data.Entity.EntityState.Added;
entities.SaveChanges();
entities.Entry(newFile);
user_share_file newShare = new user_share_file()
{
user_id = 2,
file_id = newFile.id,
code = "1234"
};
entities.user_share_file.Add(newShare);
entities.SaveChanges();
return(newShare);
}
}
public HttpResponseMessage deleteFile(string id)
{
//string id = HttpContext.Current.Request.Params["fileId"].ToString();
int fileId = 0;
HttpResponseMessage response = null;
//response.Headers.CacheControl = new System.Net.Http.Headers.CacheControlHeaderValue()
//{
// MaxAge = TimeSpan.FromMinutes(20)
//};
try
{
fileId = Convert.ToInt32(id);
} catch (Exception e)
{
response = Request.CreateResponse(HttpStatusCode.BadRequest, "Invalid File");
return(response);
}
var userId = HttpContext.Current.Session["id"];
using (FileEntitiesFinal entity = new FileEntitiesFinal())
{
var files = from f in entity.file where f.id == fileId select f;
file tempFile = files.FirstOrDefault();
if (tempFile.user_id != (int)userId)
{
return(Request.CreateResponse(HttpStatusCode.BadRequest, "Operation deny"));
}
if (tempFile.status == 100)
{
response = Request.CreateResponse(HttpStatusCode.BadRequest, "File had been deleted, don't delete it again.");
return(response);
}
tempFile.status = 100;
entity.Entry <file>(tempFile).State = System.Data.Entity.EntityState.Modified;
entity.SaveChanges();
string message = string.Format("Delete file {0} successfully!", tempFile.name.ToString());
//response.Content = new StringContent(message, Encoding.Unicode);
response = Request.CreateResponse(HttpStatusCode.OK, message);
return(response);
}
}
private async void addUpFileNumbs(int userId)
{
using (TransactionScope scope = new TransactionScope())
{
using (FileEntitiesFinal entity = new FileEntitiesFinal())
{
user tempUser = entity.user.Where(u => u.id == userId).FirstOrDefault();
if (tempUser == null)
{
return;
}
tempUser.file_nums++;
entity.user.Attach(tempUser);
entity.Entry(tempUser).State = System.Data.Entity.EntityState.Modified;
await entity.SaveChangesAsync();
}
}
}
//private string GetRandomString(int length)
//{
// const string key = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
// if (length < 1)
// {
// return string.Empty;
// }
// Random random = new Random();
// byte[] buffer = new byte[8];
// ulong bit = 21;
// ulong result = 0;
// int index = 0;
// StringBuilder stringBuilder = new StringBuilder((length / 5 + 1) * 5);
// while (stringBuilder.Length <length)
// {
// random.NextBytes(buffer);
// buffer[5] = buffer[6] = buffer[7] = 0x00;
// result = BitConverter.ToUInt64(buffer, 0);
// while (result >0 && stringBuilder.Length <length)
// {
// index = (int)(bit & result);
// stringBuilder.Append(key[index]);
// result = result >> 5;
// }
// }
// return stringBuilder.ToString();
// }
private async void addUpDownloadTimes(int fileId)
{
using (TransactionScope scope = new TransactionScope())
{
using (FileEntitiesFinal entity = new FileEntitiesFinal())
{
file tempFile = entity.file.Where(f => f.id == fileId).FirstOrDefault();
if (tempFile == null)
{
return;
}
else
{
tempFile.download_times++;
entity.file.Attach(tempFile);
entity.Entry(tempFile).State = System.Data.Entity.EntityState.Modified;
await entity.SaveChangesAsync();
}
}
scope.Complete();
}
}