diff --git a/tp1/StubbedContextLib/Migrations/20240209013745_Mg.Designer.cs b/tp1/StubbedContextLib/Migrations/20240209013745_Mg.Designer.cs
deleted file mode 100644
index bb016fa..0000000
--- a/tp1/StubbedContextLib/Migrations/20240209013745_Mg.Designer.cs
+++ /dev/null
@@ -1,47 +0,0 @@
-// <auto-generated />
-using Microsoft.EntityFrameworkCore;
-using Microsoft.EntityFrameworkCore.Infrastructure;
-using Microsoft.EntityFrameworkCore.Migrations;
-using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
-using StubbedContextLib;
-
-#nullable disable
-
-namespace StubbedContextLib.Migrations
-{
-    [DbContext(typeof(StubbedContext))]
-    [Migration("20240209013745_Mg")]
-    partial class Mg
-    {
-        /// <inheritdoc />
-        protected override void BuildTargetModel(ModelBuilder modelBuilder)
-        {
-#pragma warning disable 612, 618
-            modelBuilder.HasAnnotation("ProductVersion", "8.0.1");
-
-            modelBuilder.Entity("Entities.BookEntity", b =>
-                {
-                    b.Property<int>("ID")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("INTEGER");
-
-                    b.Property<string>("Author")
-                        .IsRequired()
-                        .HasColumnType("TEXT");
-
-                    b.Property<string>("Isbn")
-                        .IsRequired()
-                        .HasColumnType("TEXT");
-
-                    b.Property<string>("Title")
-                        .IsRequired()
-                        .HasColumnType("TEXT");
-
-                    b.HasKey("ID");
-
-                    b.ToTable("BooksSet");
-                });
-#pragma warning restore 612, 618
-        }
-    }
-}
diff --git a/tp1/StubbedContextLib/Migrations/20240209013745_Mg.cs b/tp1/StubbedContextLib/Migrations/20240209013745_Mg.cs
deleted file mode 100644
index 9ac614b..0000000
--- a/tp1/StubbedContextLib/Migrations/20240209013745_Mg.cs
+++ /dev/null
@@ -1,36 +0,0 @@
-using Microsoft.EntityFrameworkCore.Migrations;
-
-#nullable disable
-
-namespace StubbedContextLib.Migrations
-{
-    /// <inheritdoc />
-    public partial class Mg : Migration
-    {
-        /// <inheritdoc />
-        protected override void Up(MigrationBuilder migrationBuilder)
-        {
-            migrationBuilder.CreateTable(
-                name: "BooksSet",
-                columns: table => new
-                {
-                    ID = table.Column<int>(type: "INTEGER", nullable: false)
-                        .Annotation("Sqlite:Autoincrement", true),
-                    Title = table.Column<string>(type: "TEXT", nullable: false),
-                    Author = table.Column<string>(type: "TEXT", nullable: false),
-                    Isbn = table.Column<string>(type: "TEXT", nullable: false)
-                },
-                constraints: table =>
-                {
-                    table.PrimaryKey("PK_BooksSet", x => x.ID);
-                });
-        }
-
-        /// <inheritdoc />
-        protected override void Down(MigrationBuilder migrationBuilder)
-        {
-            migrationBuilder.DropTable(
-                name: "BooksSet");
-        }
-    }
-}
diff --git a/tp1/StubbedContextLib/Migrations/20240209155948_Mg.Designer.cs b/tp1/StubbedContextLib/Migrations/20240209155948_Mg.Designer.cs
new file mode 100644
index 0000000..154b565
--- /dev/null
+++ b/tp1/StubbedContextLib/Migrations/20240209155948_Mg.Designer.cs
@@ -0,0 +1,89 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using StubbedContextLib;
+
+#nullable disable
+
+namespace StubbedContextLib.Migrations
+{
+    [DbContext(typeof(StubbedContext))]
+    [Migration("20240209155948_Mg")]
+    partial class Mg
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder.HasAnnotation("ProductVersion", "8.0.1");
+
+            modelBuilder.Entity("Entities.BookEntity", b =>
+                {
+                    b.Property<long>("ID")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Author")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Isbn")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<int?>("OwnerId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("PersonId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Title")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("ID");
+
+                    b.HasIndex("OwnerId");
+
+                    b.ToTable("BooksSet");
+                });
+
+            modelBuilder.Entity("Entities.PersonEntity", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("FirstName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("LastName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("PersonSet");
+                });
+
+            modelBuilder.Entity("Entities.BookEntity", b =>
+                {
+                    b.HasOne("Entities.PersonEntity", "Owner")
+                        .WithMany("Books")
+                        .HasForeignKey("OwnerId");
+
+                    b.Navigation("Owner");
+                });
+
+            modelBuilder.Entity("Entities.PersonEntity", b =>
+                {
+                    b.Navigation("Books");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}
diff --git a/tp1/StubbedContextLib/Migrations/20240209155948_Mg.cs b/tp1/StubbedContextLib/Migrations/20240209155948_Mg.cs
new file mode 100644
index 0000000..f03f257
--- /dev/null
+++ b/tp1/StubbedContextLib/Migrations/20240209155948_Mg.cs
@@ -0,0 +1,65 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace StubbedContextLib.Migrations
+{
+    /// <inheritdoc />
+    public partial class Mg : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "PersonSet",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "INTEGER", nullable: false)
+                        .Annotation("Sqlite:Autoincrement", true),
+                    FirstName = table.Column<string>(type: "TEXT", nullable: false),
+                    LastName = table.Column<string>(type: "TEXT", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_PersonSet", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "BooksSet",
+                columns: table => new
+                {
+                    ID = table.Column<long>(type: "INTEGER", nullable: false)
+                        .Annotation("Sqlite:Autoincrement", true),
+                    Title = table.Column<string>(type: "TEXT", nullable: false),
+                    Author = table.Column<string>(type: "TEXT", nullable: false),
+                    Isbn = table.Column<string>(type: "TEXT", nullable: false),
+                    PersonId = table.Column<int>(type: "INTEGER", nullable: false),
+                    OwnerId = table.Column<int>(type: "INTEGER", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_BooksSet", x => x.ID);
+                    table.ForeignKey(
+                        name: "FK_BooksSet_PersonSet_OwnerId",
+                        column: x => x.OwnerId,
+                        principalTable: "PersonSet",
+                        principalColumn: "Id");
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_BooksSet_OwnerId",
+                table: "BooksSet",
+                column: "OwnerId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "BooksSet");
+
+            migrationBuilder.DropTable(
+                name: "PersonSet");
+        }
+    }
+}
diff --git a/tp1/StubbedContextLib/Migrations/StubbedContextModelSnapshot.cs b/tp1/StubbedContextLib/Migrations/StubbedContextModelSnapshot.cs
index 1454cd1..3e7e88c 100644
--- a/tp1/StubbedContextLib/Migrations/StubbedContextModelSnapshot.cs
+++ b/tp1/StubbedContextLib/Migrations/StubbedContextModelSnapshot.cs
@@ -1,44 +1,86 @@
-// <auto-generated />
-using Microsoft.EntityFrameworkCore;
-using Microsoft.EntityFrameworkCore.Infrastructure;
-using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
-using StubbedContextLib;
-
-#nullable disable
-
-namespace StubbedContextLib.Migrations
-{
-    [DbContext(typeof(StubbedContext))]
-    partial class StubbedContextModelSnapshot : ModelSnapshot
-    {
-        protected override void BuildModel(ModelBuilder modelBuilder)
-        {
-#pragma warning disable 612, 618
-            modelBuilder.HasAnnotation("ProductVersion", "8.0.1");
-
-            modelBuilder.Entity("Entities.BookEntity", b =>
-                {
-                    b.Property<int>("ID")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("INTEGER");
-
-                    b.Property<string>("Author")
-                        .IsRequired()
-                        .HasColumnType("TEXT");
-
-                    b.Property<string>("Isbn")
-                        .IsRequired()
-                        .HasColumnType("TEXT");
-
-                    b.Property<string>("Title")
-                        .IsRequired()
-                        .HasColumnType("TEXT");
-
-                    b.HasKey("ID");
-
-                    b.ToTable("BooksSet");
-                });
-#pragma warning restore 612, 618
-        }
-    }
-}
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using StubbedContextLib;
+
+#nullable disable
+
+namespace StubbedContextLib.Migrations
+{
+    [DbContext(typeof(StubbedContext))]
+    partial class StubbedContextModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder.HasAnnotation("ProductVersion", "8.0.1");
+
+            modelBuilder.Entity("Entities.BookEntity", b =>
+                {
+                    b.Property<long>("ID")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Author")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Isbn")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<int?>("OwnerId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("PersonId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Title")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("ID");
+
+                    b.HasIndex("OwnerId");
+
+                    b.ToTable("BooksSet");
+                });
+
+            modelBuilder.Entity("Entities.PersonEntity", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("FirstName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("LastName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("PersonSet");
+                });
+
+            modelBuilder.Entity("Entities.BookEntity", b =>
+                {
+                    b.HasOne("Entities.PersonEntity", "Owner")
+                        .WithMany("Books")
+                        .HasForeignKey("OwnerId");
+
+                    b.Navigation("Owner");
+                });
+
+            modelBuilder.Entity("Entities.PersonEntity", b =>
+                {
+                    b.Navigation("Books");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}
diff --git a/tp1/StubbedContextLib/StubbedContext.cs b/tp1/StubbedContextLib/StubbedContext.cs
index 418364f..4f79e00 100644
--- a/tp1/StubbedContextLib/StubbedContext.cs
+++ b/tp1/StubbedContextLib/StubbedContext.cs
@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Collections.ObjectModel;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
@@ -15,8 +16,14 @@ namespace StubbedContextLib
         public List<BookEntity> Books {  get; set; } = new List<BookEntity>();
 
         public StubbedContext() {
-            Books.Add(new BookEntity("test", "test", "test"));
-            Books.Add(new BookEntity("test2", "test2", "test2"));
+            BookEntity b0 = new BookEntity() { Title = "test", Author = "test", Isbn = "test" };
+            BookEntity b1 = new BookEntity() { Title = "test2", Author = "test2", Isbn = "test2" };
+            Books.Add(b0);
+            Books.Add(b1);
+            Collection<BookEntity> CB = new Collection<BookEntity>();
+            CB.Add(b0);
+            CB.Add(b1);
+            Persons.Add(new PersonEntity() { FirstName = "coco", LastName = "test", Books = CB });
         }
 
     }