public async Task <IActionResult> InsertOrUpdateBookImage(ImageBookViewModel ViewModel)
{
if (ModelState.IsValid)
{
var Book = await _unitofwork.BaseRepository <Book>().FindByIDAsync(ViewModel.BookID);
using (var memorySteam = new MemoryStream())
{
string FileExtension = Path.GetExtension(ViewModel.Image.FileName);
await ViewModel.Image.CopyToAsync(memorySteam);
var types = FileExtentions.FileType.Image;
bool result = FileExtentions.IsValidFile(memorySteam.ToArray(), types, FileExtension.Replace('.', ' '));
if (result)
{
Book.Image = memorySteam.ToArray();
await _unitofwork.Commit();
ViewModel.ImageByte = memorySteam.ToArray();
TempData["Notifications"] = "آپلود فایل با موفقیت انجام شد.";
}
else
{
ModelState.AddModelError("", "فایل تصویر کتاب نامعتبر است.");
}
}
}
return(PartialView("_InsertOrUpdateBookImage", ViewModel));
}
public async Task <UploadFileResult> UploadFileAsync(IFormFile file, string path)
{
string FileExtension = Path.GetExtension(file.FileName);
var types = FileExtentions.FileType.PDF;
bool result = true;
using (var memory = new MemoryStream())
{
await file.CopyToAsync(memory);
result = FileExtentions.IsValidFile(memory.ToArray(), types, FileExtension.Replace('.', ' '));
if (result)
{
using (var stream = new FileStream(path, FileMode.Create))
{
await file.CopyToAsync(stream);
}
return(new UploadFileResult(true, null));
}
else
{
return(new UploadFileResult(false, new List <string>()
{
"فایل انتخاب شده معتبر نمی باشد."
}));
}
}
}
/// <summary>
/// 显示打开文件对话框
/// </summary>
/// <param name="caption">标题</param>
/// <param name="fileName">文件名</param>
/// <param name="fileFilters">文件过滤器</param>
public static DialogReturn ShowSaveFileDialog(string caption, ref string fileName, params string[] fileFilters)
{
if (DefaultUserInterface == null)
{
Debug.WriteLine("ShowSaveFileDialog");
return(DialogReturn.None);
}
return(DefaultUserInterface.ShowFileDialog(false, caption, FileExtentions.BuildFileFilter(fileFilters), ref fileName));
}
public async Task <IActionResult> Download(int id)
{
var book = await _unitofwork.BaseRepository <Book>().FindByIDAsync(id);
if (book == null)
{
return(NotFound());
}
var Path = $"{_environment.WebRootPath}/BookFiles/{book.File}";
var memory = new MemoryStream();
using (var stream = new FileStream(Path, FileMode.Open))
{
await stream.CopyToAsync(memory);
}
memory.Position = 0;
return(File(memory, FileExtentions.GetContentType(Path), book.File));
}
public async Task <IActionResult> Download(int?id)
{
var Book = await _context.BookStors.FindAsync(id);
if (Book == null)
{
return(Content("همچییین موجود نیست"));
}
else
{
if (Book.File == null)
{
return(Content("فایل موجود نیست"));
}
var path = $"{_evn.WebRootPath}/BookFile/{Book.File}";
var Memory = new MemoryStream();
using (var stream = new FileStream(path, FileMode.Open))
{
await stream.CopyToAsync(Memory);
}
Memory.Position = 0;
return(File(Memory, FileExtentions.GetContentType(path), Book.File));
}
}
public async Task <bool> CreateBookAsync(BooksCreateEditViewModel ViewModel)
{
try
{
byte[] Image = null;
if (!string.IsNullOrWhiteSpace(ViewModel.ImageBase64))
{
Image = Convert.FromBase64String(ViewModel.ImageBase64);
}
List <Book_Translator> translators = new List <Book_Translator>();
List <Book_Category> categories = new List <Book_Category>();
if (ViewModel.TranslatorID != null)
{
translators = ViewModel.TranslatorID.Select(a => new Book_Translator {
TranslatorID = a
}).ToList();
}
if (ViewModel.CategoryID != null)
{
categories = ViewModel.CategoryID.Select(a => new Book_Category {
CategoryID = a
}).ToList();
}
DateTime?PublishDate = null;
if (ViewModel.IsPublish == true)
{
PublishDate = DateTime.Now;
}
Book book = new Book()
{
ISBN = ViewModel.ISBN,
IsPublish = ViewModel.IsPublish,
NumOfPages = ViewModel.NumOfPages,
Stock = ViewModel.Stock,
Price = ViewModel.Price,
LanguageID = ViewModel.LanguageID,
Summary = ViewModel.Summary,
Title = ViewModel.Title,
Image = Image,
PublishYear = ViewModel.PublishYear,
PublishDate = PublishDate,
Weight = ViewModel.Weight,
PublisherID = ViewModel.PublisherID,
Author_Books = ViewModel.AuthorID.Select(a => new Author_Book {
AuthorID = a
}).ToList(),
book_Tranlators = translators,
book_Categories = categories,
File = ViewModel.FileName,
};
if (ViewModel.Image != null)
{
using (var memorySteam = new MemoryStream())
{
string FileExtension = Path.GetExtension(ViewModel.Image.FileName);
await ViewModel.Image.CopyToAsync(memorySteam);
var types = FileExtentions.FileType.Image;
bool result = FileExtentions.IsValidFile(memorySteam.ToArray(), types, FileExtension.Replace('.', ' '));
if (result)
{
book.Image = memorySteam.ToArray();
}
}
}
await _UW.BaseRepository <Book>().CreateAsync(book);
await _UW.Commit();
return(true);
}
catch
{
return(false);
}
}
