Initial check-in

DataLayer/UNTESTED/EfClasses/LibraryBook.cs

@@ -0,0 +1,25 @@
+using System;
+using Dinah.Core;
+
+namespace DataLayer
+{
+    public class LibraryBook
+    {
+        internal int BookId { get; private set; }
+        public Book Book { get; private set; }
+
+        public DateTime DateAdded { get; private set; }
+
+        /// <summary>For downloading AAX file</summary>
+        public string DownloadBookLink { get; private set; }
+
+        private LibraryBook() { }
+        public LibraryBook(Book book, DateTime dateAdded, string downloadBookLink)
+        {
+            ArgumentValidator.EnsureNotNull(book, nameof(book));
+            Book = book;
+            DateAdded = dateAdded;
+            DownloadBookLink = downloadBookLink;
+        }
+    }
+}