public async Task <SubjectForClass> Update(SubjectForClass picture, IFormFile newPic, string folderName)
{
bool res = await Delete(picture);
string path, fileName;
Save(newPic, folderName, out path, out fileName);
if (fileName != "" && path != "")
{
picture.FileName = fileName;
picture.VirtualPath = path;
_context.Entry(picture).State = EntityState.Modified;
try
{
await _context.SaveChangesAsync();
}
catch
{
return(null);
}
return(picture);
}
return(null);
}
/// <summary>
// Multi Picture save
/// </summary>
/// <param name="images"></param>
/// <param name="folderName"></param>
/// <returns></returns>
public async Task <List <SubjectForClass> > Create(List <IFormFile> images, string folderName)
{
List <SubjectForClass> pictures = new List <SubjectForClass>();
foreach (var image in images)
{
SubjectForClass picture = new SubjectForClass();
string path, fileName;
Save(image, folderName, out path, out fileName);
picture.FileName = fileName;
if (path != "")
{
picture.VirtualPath = path;
_context.SubjectForClass.Add(picture);
try
{
await _context.SaveChangesAsync();
}
catch (Exception)
{
return(null);
}
}
pictures.Add(picture);
}
return(pictures);
}
public SubjectForClass AddImage(IFormFile image, string folderName)
{
var subject = new SubjectForClass();
string path, fileName;
Save(image, folderName, out path, out fileName);
subject.FileName = fileName;
subject.VirtualPath = path;
if (path == "" & fileName == "")
{
return(null);
}
return(subject);
}
/// <summary>
///
/// </summary>
/// <param name="picture"></param>
/// <returns></returns>
public async Task <bool> Delete(SubjectForClass picture)
{
string root = _hostingEnvironment.WebRootPath;
string virtualPath = picture.VirtualPath;
string fullPath = root + virtualPath;
string path = Path.Combine(root, virtualPath);
_context.SubjectForClass.Remove(picture);
try
{
await _context.SaveChangesAsync();
}
catch (DbUpdateException)
{
return(false);
}
// Check if file exists with its full path
if (File.Exists(fullPath))
{
for (int i = 0; i < 3; i++)
{
try
{
// If file found, delete it
File.Delete(fullPath);
}
catch (IOException)
{
Thread.Sleep(1000);
if (i == 2)
{
return(false);
}
}
}
}
return(true);
}
public bool DeleteFromRoot(SubjectForClass picture)
{
string root = _hostingEnvironment.WebRootPath;
// Check if file exists with its full path
if (File.Exists(root + picture.VirtualPath))
{
try
{
// If file found, delete it
File.Delete(root + picture.VirtualPath);
}
catch (IOException)
{
return(false);
}
}
return(true);
}
/// <summary>
// Single Picture Save
/// </summary>
/// <param name="images"></param>
/// <param name="folderName"></param>
/// <returns></returns>
public async Task <SubjectForClass> Create(IFormFile image, string folderName)
{
SubjectForClass picture = new SubjectForClass();
string path, fileName;
Save(image, folderName, out path, out fileName);
picture.FileName = fileName;
if (path != "")
{
picture.VirtualPath = path;
_context.SubjectForClass.Add(picture);
try
{
await _context.SaveChangesAsync();
}
catch (Exception)
{
return(null);
}
}
return(picture);
}
Task <Subjects> IPictureManager.Update(SubjectForClass picture, IFormFile newPic, string folderName)
{
throw new NotImplementedException();
}