marechai/Cicm.Database/Migrations/20190617014131_AddCompaniesByBook.cs

using Microsoft.EntityFrameworkCore.Metadata;
using Microsoft.EntityFrameworkCore.Migrations;

namespace Cicm.Database.Migrations
{
    public partial class AddCompaniesByBook : Migration
    {
        protected override void Up(MigrationBuilder migrationBuilder)
        {
            migrationBuilder.CreateTable("CompaniesByBooks",
                                         table => new
                                         {
                                             Id = table.Column<long>()
                                                       .Annotation("MySql:ValueGenerationStrategy",
                                                                   MySqlValueGenerationStrategy.IdentityColumn),
                                             CompanyId = table.Column<int>(),
                                             BookId    = table.Column<long>(),
                                             RoleId    = table.Column<string>("char(3)")
                                         }, constraints: table =>
                                         {
                                             table.PrimaryKey("PK_CompaniesByBooks", x => x.Id);
                                             table.ForeignKey("FK_CompaniesByBooks_Books_BookId", x => x.BookId,
                                                              "Books", "Id", onDelete: ReferentialAction.Cascade);
                                             table.ForeignKey("FK_CompaniesByBooks_DocumentCompanies_CompanyId",
                                                              x => x.CompanyId, "DocumentCompanies", "Id",
                                                              onDelete: ReferentialAction.Cascade);
                                             table.ForeignKey("FK_CompaniesByBooks_DocumentRoles_RoleId", x => x.RoleId,
                                                              "DocumentRoles", "Id",
                                                              onDelete: ReferentialAction.Cascade);
                                         });

            migrationBuilder.CreateIndex("IX_CompaniesByBooks_BookId", "CompaniesByBooks", "BookId");

            migrationBuilder.CreateIndex("IX_CompaniesByBooks_CompanyId", "CompaniesByBooks", "CompanyId");

            migrationBuilder.CreateIndex("IX_CompaniesByBooks_RoleId", "CompaniesByBooks", "RoleId");
        }

        protected override void Down(MigrationBuilder migrationBuilder)
        {
            migrationBuilder.DropTable("CompaniesByBooks");
        }
    }
}