:constuction: ERD mit Code-First Implementation begonnen

Backend/EVABackend/EVABackend/Migrations/20190515103649_TestCreate1.Designer.cs

@@ -0,0 +1,85 @@
+// <auto-generated />
+using EVABackend.Models;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+namespace EVABackend.Migrations
+{
+    [DbContext(typeof(EVAContext))]
+    [Migration("20190515103649_TestCreate1")]
+    partial class TestCreate1
+    {
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "2.1.8-servicing-32085");
+
+            modelBuilder.Entity("EVABackend.Models.Kurs", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd();
+
+                    b.Property<int>("Kuendigungsfrist");
+
+                    b.Property<int>("Laufzeit");
+
+                    b.Property<string>("Name")
+                        .IsRequired();
+
+                    b.Property<decimal>("Preis");
+
+                    b.Property<int>("UnterrichtsTyp");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Kurse");
+                });
+
+            modelBuilder.Entity("EVABackend.Models.KursSchueler", b =>
+                {
+                    b.Property<int>("SchuelerId");
+
+                    b.Property<int>("KursId");
+
+                    b.HasKey("SchuelerId", "KursId");
+
+                    b.HasIndex("KursId");
+
+                    b.ToTable("KursSchueler");
+                });
+
+            modelBuilder.Entity("EVABackend.Models.Schueler", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd();
+
+                    b.Property<string>("Name")
+                        .IsRequired();
+
+                    b.Property<string>("Vorname")
+                        .IsRequired();
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Schueler");
+                });
+
+            modelBuilder.Entity("EVABackend.Models.KursSchueler", b =>
+                {
+                    b.HasOne("EVABackend.Models.Kurs", "Kurs")
+                        .WithMany("KursSchueler")
+                        .HasForeignKey("KursId")
+                        .OnDelete(DeleteBehavior.Cascade);
+
+                    b.HasOne("EVABackend.Models.Schueler", "Schueler")
+                        .WithMany("KursSchueler")
+                        .HasForeignKey("SchuelerId")
+                        .OnDelete(DeleteBehavior.Cascade);
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

Backend/EVABackend/EVABackend/Migrations/20190515103649_TestCreate1.cs

@@ -0,0 +1,82 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+namespace EVABackend.Migrations
+{
+    public partial class TestCreate1 : Migration
+    {
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "Kurse",
+                columns: table => new
+                {
+                    Id = table.Column<int>(nullable: false)
+                        .Annotation("Sqlite:Autoincrement", true),
+                    Name = table.Column<string>(nullable: false),
+                    Preis = table.Column<decimal>(nullable: false),
+                    Laufzeit = table.Column<int>(nullable: false),
+                    Kuendigungsfrist = table.Column<int>(nullable: false),
+                    UnterrichtsTyp = table.Column<int>(nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Kurse", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Schueler",
+                columns: table => new
+                {
+                    Id = table.Column<int>(nullable: false)
+                        .Annotation("Sqlite:Autoincrement", true),
+                    Name = table.Column<string>(nullable: false),
+                    Vorname = table.Column<string>(nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Schueler", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "KursSchueler",
+                columns: table => new
+                {
+                    SchuelerId = table.Column<int>(nullable: false),
+                    KursId = table.Column<int>(nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_KursSchueler", x => new { x.SchuelerId, x.KursId });
+                    table.ForeignKey(
+                        name: "FK_KursSchueler_Kurse_KursId",
+                        column: x => x.KursId,
+                        principalTable: "Kurse",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_KursSchueler_Schueler_SchuelerId",
+                        column: x => x.SchuelerId,
+                        principalTable: "Schueler",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_KursSchueler_KursId",
+                table: "KursSchueler",
+                column: "KursId");
+        }
+
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "KursSchueler");
+
+            migrationBuilder.DropTable(
+                name: "Kurse");
+
+            migrationBuilder.DropTable(
+                name: "Schueler");
+        }
+    }
+}

Backend/EVABackend/EVABackend/Migrations/EVAContextModelSnapshot.cs

@@ -0,0 +1,83 @@
+// <auto-generated />
+using EVABackend.Models;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+namespace EVABackend.Migrations
+{
+    [DbContext(typeof(EVAContext))]
+    partial class EVAContextModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "2.1.8-servicing-32085");
+
+            modelBuilder.Entity("EVABackend.Models.Kurs", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd();
+
+                    b.Property<int>("Kuendigungsfrist");
+
+                    b.Property<int>("Laufzeit");
+
+                    b.Property<string>("Name")
+                        .IsRequired();
+
+                    b.Property<decimal>("Preis");
+
+                    b.Property<int>("UnterrichtsTyp");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Kurse");
+                });
+
+            modelBuilder.Entity("EVABackend.Models.KursSchueler", b =>
+                {
+                    b.Property<int>("SchuelerId");
+
+                    b.Property<int>("KursId");
+
+                    b.HasKey("SchuelerId", "KursId");
+
+                    b.HasIndex("KursId");
+
+                    b.ToTable("KursSchueler");
+                });
+
+            modelBuilder.Entity("EVABackend.Models.Schueler", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd();
+
+                    b.Property<string>("Name")
+                        .IsRequired();
+
+                    b.Property<string>("Vorname")
+                        .IsRequired();
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Schueler");
+                });
+
+            modelBuilder.Entity("EVABackend.Models.KursSchueler", b =>
+                {
+                    b.HasOne("EVABackend.Models.Kurs", "Kurs")
+                        .WithMany("KursSchueler")
+                        .HasForeignKey("KursId")
+                        .OnDelete(DeleteBehavior.Cascade);
+
+                    b.HasOne("EVABackend.Models.Schueler", "Schueler")
+                        .WithMany("KursSchueler")
+                        .HasForeignKey("SchuelerId")
+                        .OnDelete(DeleteBehavior.Cascade);
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

Backend/EVABackend/EVABackend/Models/EVAContext.cs

@@ -0,0 +1,74 @@
+using Microsoft.EntityFrameworkCore;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace EVABackend.Models
+{
+    public class EVAContext : DbContext
+    {
+        public DbSet<Schueler> Schueler { get; set; }
+        public DbSet<Kurs> Kurse { get; set; }
+        public DbSet<KursSchueler> KursSchueler { get; set; }
+
+        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+        {
+            optionsBuilder.UseSqlite("Data Source=eva.db");
+        }
+
+        protected override void OnModelCreating(ModelBuilder modelBuilder)
+        {
+            modelBuilder.Entity<KursSchueler>()
+                .HasKey(c => new { c.SchuelerId, c.KursId });
+
+            modelBuilder.Entity<KursSchueler>()
+                .HasOne(c => c.Schueler)
+                .WithMany(c => c.KursSchueler)
+                .HasForeignKey(c => c.SchuelerId);
+
+            modelBuilder.Entity<KursSchueler>()
+                .HasOne(c => c.Kurs)
+                .WithMany(c => c.KursSchueler)
+                .HasForeignKey(c => c.KursId);
+        }
+    }
+
+    public class Schueler
+    {
+        [Key]
+        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
+        public int Id { get; set; }
+        [Required]
+        public string Name { get; set; }
+        [Required]
+        public string Vorname { get; set; }
+        public virtual ICollection<KursSchueler> KursSchueler { get; set; }
+    }
+
+    public class Kurs
+    {
+        [Key]
+        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
+        public int Id { get; set; }
+        [Required]
+        public string Name { get; set; }
+        public decimal Preis { get; set; }
+        public int Laufzeit { get; set; }
+        public int Kuendigungsfrist { get; set; }
+        public UnterrichtTyp UnterrichtsTyp { get; set; }
+        public virtual ICollection<KursSchueler> KursSchueler { get; set; }
+    }
+
+    public class KursSchueler
+    {
+        public int SchuelerId { get; set; }
+        public int KursId { get; set; }
+        public virtual Schueler Schueler { get; set; }
+        public virtual Kurs Kurs { get; set; }
+    }
+
+    public enum UnterrichtTyp
+    {
+        Einzel, Gruppe
+    }
+}