public Book Get(int id)
{
if (repasitory.GetAll().Where(b => b.Id == id).ToList().Count != 0)
{
return(repasitory.Get(id));
}
return(null);
}
public Category Get(int id)
{
if (repasitory.GetAll().Where(c => c.Id == id).ToList().Count != 0)
{
return(repasitory.Get(id));
}
return(null);
}
public Author Get(int id)
{
if (repasitory.GetAll().Where(a => a.Id == id).ToList().Count != 0)
{
return(repasitory.Get(id));
}
return(null);
}
public Publications Get(int id)
{
if (repasitory.GetAll().Where(p => p.Id == id).ToList().Count != 0)
{
return(repasitory.Get(id));
}
return(null);
}
public string Un_Register(int id)
{
if (repasitory.GetAll().Where(cb => cb.Id == id).ToList().Count != 0)
{
repasitory.Delete(id);
repasitory.Save();
return($"the category-book with id :{id} is deleted...");
}
return("Not Found any cattegory-book to un-register");
}
public string Register(BookCategory bookcat)
{
var testbook = b_repository.GetAll().Where(ab => ab.Id == bookcat.IdBook).ToList().Count;
var testcategory = c_repository.GetAll().Where(ab => ab.Id == bookcat.IdCategory).ToList().Count;
if (testcategory == 0)
{
return("Not Found any author whit this id");
}
if (testbook == 0)
{
return("Not Found any book whit this id");
}
repasitory.Insert(bookcat);
repasitory.Save();
return(bookcat.Id + " register...");
}
public string Register(BookAuthor bookAuthor)
{
var testbook = b_repository.GetAll().Where(ab => ab.Id == bookAuthor.IdBook).ToList().Count;
var testauthor = a_repository.GetAll().Where(ab => ab.Id == bookAuthor.IdAuthor).ToList().Count;
if (testauthor == 0)
{
return("Not Found any author with this id");
}
if (testbook == 0)
{
return("Not Found any book with this id");
}
repasitory.Insert(bookAuthor);
repasitory.Save();
return(bookAuthor.Id + " register...");
}