renaming

5/Models/Book.cs

@@ -0,0 +1,21 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace Example.Models
+{
+    public class Book
+    {
+        public Book() {}
+
+        public int Id { get; set; }
+
+        [Required]
+        [StringLength(200)]
+        public string Title { get; set; } = string.Empty;
+
+        [StringLength(1000)]
+        public string Summary { get; set; } = string.Empty;
+
+        [DataType(DataType.Date)]
+        public DateTime Published { get; set; }
+    }
+}