/// <summary>
/// Create Author Logic
/// </summary>
public static string UpdateAuthor(int id, string refrence, string fullName, string image, string country)
{
try
{
using (DbContext = new LibraryAppDbEntities())
{
if (string.IsNullOrEmpty(refrence) || string.IsNullOrEmpty(fullName) || string.IsNullOrEmpty(image) || string.IsNullOrEmpty(country))
{
return("something is empty");
}
else
{
// Check if The New Author is Already Exist
var updatedAuthor = DbContext.Authors.FirstOrDefault(a => a.Id == id);
if (updatedAuthor != null)
{
updatedAuthor.AuthorRef = refrence;
updatedAuthor.AuthorFullName = fullName;
updatedAuthor.Picture = image;
updatedAuthor.Country = country;
DbContext.SaveChanges();
return("OK");
}
else
{
return("Reference Must Be Unique");
}
}
}
}
catch (Exception)
{
}
return("OK");
}
protected void btnDelete_Click(object sender, EventArgs e)
{
// noDeleteMessage.Visible = false;
try
{
using (DbContext = new LibraryAppDbEntities())
{
var deletedAuthor = DbContext.Authors.FirstOrDefault(a => a.AuthorRef == txtDeleteAuthor.Value);
if (deletedAuthor == null)
{
findOperaMessage.InnerText = "You Try To Delete Record Doesn't Exist...";
findOperaMessage.Visible = true;
}
else
{
// => Remove Author Image From Server
File.Delete(Server.MapPath("~/Images/") + deletedAuthor.Picture);
//=> Delete Author From Database
DbContext.Authors.Remove(deletedAuthor);
DbContext.SaveChanges();
LoadAuthorGridView();
}
ClearControls("delete");
}
}
catch (Exception)
{
throw;
}
}
/// <summary>
/// Create Author Logic
/// </summary>
public static string AddAuthor(string refrence, string fullName, string image, string country)
{
try
{
using (DbContext = new LibraryAppDbEntities())
{
if (string.IsNullOrEmpty(refrence) || string.IsNullOrEmpty(fullName) || string.IsNullOrEmpty(image) || string.IsNullOrEmpty(country))
{
return("something is empty");
}
else
{
// Check if The New Author is Already Exist
var AuthorAlreadyExist = DbContext.Authors.FirstOrDefault(a => a.AuthorRef == refrence);
if (AuthorAlreadyExist == null)
{
Author newAuthor = new Author
{
AuthorRef = refrence,
AuthorFullName = fullName,
Picture = image,
Country = country
};
DbContext.Authors.Add(newAuthor);
DbContext.SaveChanges();
return("OK");
}
else
{
return("Already Exist");
}
}
}
}
catch (Exception)
{
}
return("OK");
}
