public ActionResult MyBorrowedBooks()
{
try
{
using (Context ctx = new Context())
{
// look at the GetCurrentUser method in Authentication class
// see the method signature
// notice the 'this' modifier on the method signature
// GetCurrentUser 'extends' the context class
// when Authetication class is in scope, then the
// GetCurrentUser method will 'appear' inside any instances
// dot into the ctx variable and look at the icon in front of
// Get Current User. this is how an extention is identified
// notice that the 'this' parameter is actually infront of the dot
// used to invoke GetCurrentUser. It is NOT inside the parenthesis
var borrower = ctx.GetCurrentUser();
if (null == borrower)
{
return(View("NotFound"));
}
var items = ctx.RatedBorrowingGetBooksRelatedToBorrowerCheckedOutOnly(borrower.BorrowerID);
return(View(VMBorrowing.ToList(items)));
}
}
catch (Exception ex)
{
return(View("Exception", ex));
}
return(View());
}
public ActionResult AllBorrowedBooks()
{
try
{
using (Context ctx = new Context())
{
var items = ctx.RatedBorrowingsGetAllCheckedOut();
return(View(VMBorrowing.ToList(items)));
}
}
catch (Exception ex)
{
return(View("Exception", ex));
}
}
public ActionResult EditBorrowing(VMBorrowing data)
{
try
{
using (Context ctx = new Context())
{
ctx.RatedBorrowingUpdateJust(data);
return(RedirectToAction("AllBorrowedBooks"));
}
}
catch (Exception ex)
{
return(View("Exception", ex));
}
}
public ActionResult ViewBooksBy(int id /* borrowerid */)
{
try
{
using (Context ctx = new Context())
{
string BorrowerName = User.Identity.Name;
Borrower thisUser = ctx.BorrowerSecuredFindByName(BorrowerName);
if (null == thisUser)
{
throw new Exception($"Borrower Not Found: '{BorrowerName}'");
}
if (!User.IsInRole("View:AllBorrowings"))
{
if (thisUser.BorrowerID == id)
{
if (User.IsInRole("View:MyBorrowings"))
{
// success
}
else
{
// failure
return(View("NotAllowed"));
}
}
else
{
// failure
return(View("NotAllowed"));
}
}
var rv = ctx.RatedBorrowingGetBooksRelatedToBorrower(id);
var vd = VMBorrowing.ToList(rv);
return(View("bookborrowing", vd));
}
}
catch (Exception ex)
{
return(View("Exception", ex));
}
}
public ActionResult ForceReturn(int id)
{
try
{
using (Context ctx = new Context())
{
var data = ctx.RatedBorrowingFindByID(id);
if (null == data)
{
return(View("NotFound"));
}
return(View(VMBorrowing.MakeNew(data)));
}
}
catch (Exception ex)
{
return(View("Exception", ex));
}
}
public ActionResult Borrow(VMBorrowing borrowing)
{
try
{
using (Context ctx = new Context())
{
if (!ModelState.IsValid)
{
return(View(borrowing));
}
ctx.RatedBorrowingCreate(borrowing);
return(RedirectToAction("Index"));
}
}
catch (Exception ex)
{
return(View("Exception", ex));
}
}
public ActionResult History(int id /* bookid*/)
{
try
{
using (Context ctx = new Context())
{
if (!User.IsInRole("View:AllUserBorrowing"))
{
// failure
return(View("NotAllowed"));
}
var rv = ctx.RatedBorrowingGetBorrowersRelatedToBook(id);
var vd = VMBorrowing.ToList(rv);
return(View("bookborrowing", vd));
}
}
catch (Exception ex)
{
return(View("Exception", ex));
}
}
public ActionResult Borrow(int id /* bookid */)
{
try
{
using (Context ctx = new Context())
{
string BorrowerName = User.Identity.Name;
Borrower thisUser = ctx.BorrowerSecuredFindByName(BorrowerName);
if (null == thisUser)
{
throw new Exception($"Borrower Not Found: '{BorrowerName}'");
}
Book thisBook = ctx.BookFindByID(id);
if (null == thisBook)
{
throw new Exception($"Book Not Found, id:'{id}'");
}
// see if the book is checked out already
var history = ctx.RatedBorrowingGetBorrowersRelatedToBook(id);
var checkedout = (history.Where(b => b.isCheckedOut == true)).ToList();
if (checkedout.Count > 0)
{
return(View("CheckedOut", checkedout));
}
// this is the Junction to a Many-Many.
// This is duplicatable, and has extra data.
VMBorrowing Borrowing = new VMBorrowing(thisBook, thisUser);
Borrowing.DueDate = DateTime.Now.AddDays(21);
return(View(Borrowing));
}
}
catch (Exception ex)
{
return(View("Exception", ex));
}
}
