починила создание лекарства. теперь можно создавать без процедур

Polyclinic/PolyclinicContracts/BindingModels/MedicamentBindingModel.cs

@@ -6,7 +6,7 @@ namespace PolyclinicContracts.BindingModels
     {
         public int Id { get; set; }
         public int? SymptomId { get; set; }
-        public int ProcedureId { get; set; }
+        public int? ProcedureId { get; set; }
         public string Name { get; set; } = string.Empty;
         public string? Comment { get; set; } = string.Empty;
     }

Polyclinic/PolyclinicContracts/ViewModels/MedicamentViewModel.cs

@@ -6,7 +6,7 @@ namespace PolyclinicContracts.ViewModels
     public class MedicamentViewModel : IMedicamentModel
     {
         public int Id { get; set; }
-        public int ProcedureId { get; set; }
+        public int? ProcedureId { get; set; }
         public int? SymptomId { get; set; }
 
         [DisplayName("Название медикамента")]

Polyclinic/PolyclinicDataModels/Models/IMedicamentModel.cs

@@ -4,7 +4,7 @@
     {
         string Name { get; }
         string? Comment { get; }
-        int ProcedureId { get; }
+        int? ProcedureId { get; }
         int? SymptomId { get; }
     }
 }

Polyclinic/PolyclinicDatabaseImplement/Migrations/20240529230147_For-Medicaments.Designer.cs

@@ -0,0 +1,448 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using SecuritySystemDatabaseImplement;
+
+#nullable disable
+
+namespace PolyclinicDatabaseImplement.Migrations
+{
+    [DbContext(typeof(PolyclinicDatabase))]
+    [Migration("20240529230147_For-Medicaments")]
+    partial class ForMedicaments
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.16")
+                .HasAnnotation("Relational:MaxIdentifierLength", 128);
+
+            SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
+
+            modelBuilder.Entity("PolyclinicDatabaseImplement.Models.Course", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Comment")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<int>("DaysCount")
+                        .HasColumnType("int");
+
+                    b.Property<int>("PillsPerDay")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Courses");
+                });
+
+            modelBuilder.Entity("PolyclinicDatabaseImplement.Models.CourseDiagnose", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("CourseId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("DiagnoseId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("CourseId");
+
+                    b.HasIndex("DiagnoseId");
+
+                    b.ToTable("CourseDiagnoses");
+                });
+
+            modelBuilder.Entity("PolyclinicDatabaseImplement.Models.Diagnose", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Comment")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<DateTime>("DateStartDiagnose")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime?>("DateStopDiagnose")
+                        .HasColumnType("datetime2");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<int>("UserId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("Diagnoses");
+                });
+
+            modelBuilder.Entity("PolyclinicDatabaseImplement.Models.Medicament", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Comment")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<int?>("ProcedureId")
+                        .HasColumnType("int");
+
+                    b.Property<int?>("SymptomId")
+                        .IsRequired()
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ProcedureId");
+
+                    b.HasIndex("SymptomId");
+
+                    b.ToTable("Medicaments");
+                });
+
+            modelBuilder.Entity("PolyclinicDatabaseImplement.Models.Procedure", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Comment")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<DateTime>("DateStartProcedure")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime?>("DateStopProcedure")
+                        .HasColumnType("datetime2");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<int>("UserId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("Procedures");
+                });
+
+            modelBuilder.Entity("PolyclinicDatabaseImplement.Models.Recipe", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Comment")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<int?>("CourseId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("ProceduresCount")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("CourseId");
+
+                    b.ToTable("Recipes");
+                });
+
+            modelBuilder.Entity("PolyclinicDatabaseImplement.Models.RecipeProcedure", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ProcedureId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("RecipeId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ProcedureId");
+
+                    b.HasIndex("RecipeId");
+
+                    b.ToTable("RecipeProcedures");
+                });
+
+            modelBuilder.Entity("PolyclinicDatabaseImplement.Models.Symptom", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Comment")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Symptomes");
+                });
+
+            modelBuilder.Entity("PolyclinicDatabaseImplement.Models.SymptomDiagnose", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("DiagnoseId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("SymptomId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("DiagnoseId");
+
+                    b.HasIndex("SymptomId");
+
+                    b.ToTable("SymptomDiagnoses");
+                });
+
+            modelBuilder.Entity("PolyclinicDatabaseImplement.Models.SymptomRecipe", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("RecipeId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("SymptomId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("RecipeId");
+
+                    b.HasIndex("SymptomId");
+
+                    b.ToTable("SymptomRecipes");
+                });
+
+            modelBuilder.Entity("PolyclinicDatabaseImplement.Models.User", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Email")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("FIO")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("Password")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<int>("Role")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Users");
+                });
+
+            modelBuilder.Entity("PolyclinicDatabaseImplement.Models.CourseDiagnose", b =>
+                {
+                    b.HasOne("PolyclinicDatabaseImplement.Models.Course", "Course")
+                        .WithMany("Diagnoses")
+                        .HasForeignKey("CourseId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("PolyclinicDatabaseImplement.Models.Diagnose", "Diagnose")
+                        .WithMany()
+                        .HasForeignKey("DiagnoseId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Course");
+
+                    b.Navigation("Diagnose");
+                });
+
+            modelBuilder.Entity("PolyclinicDatabaseImplement.Models.Diagnose", b =>
+                {
+                    b.HasOne("PolyclinicDatabaseImplement.Models.User", "User")
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("PolyclinicDatabaseImplement.Models.Medicament", b =>
+                {
+                    b.HasOne("PolyclinicDatabaseImplement.Models.Procedure", "Procedure")
+                        .WithMany()
+                        .HasForeignKey("ProcedureId");
+
+                    b.HasOne("PolyclinicDatabaseImplement.Models.Symptom", "Symptom")
+                        .WithMany()
+                        .HasForeignKey("SymptomId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Procedure");
+
+                    b.Navigation("Symptom");
+                });
+
+            modelBuilder.Entity("PolyclinicDatabaseImplement.Models.Procedure", b =>
+                {
+                    b.HasOne("PolyclinicDatabaseImplement.Models.User", "User")
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("PolyclinicDatabaseImplement.Models.Recipe", b =>
+                {
+                    b.HasOne("PolyclinicDatabaseImplement.Models.Course", "Course")
+                        .WithMany()
+                        .HasForeignKey("CourseId");
+
+                    b.Navigation("Course");
+                });
+
+            modelBuilder.Entity("PolyclinicDatabaseImplement.Models.RecipeProcedure", b =>
+                {
+                    b.HasOne("PolyclinicDatabaseImplement.Models.Procedure", "Procedure")
+                        .WithMany()
+                        .HasForeignKey("ProcedureId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("PolyclinicDatabaseImplement.Models.Recipe", "Recipe")
+                        .WithMany("Procedures")
+                        .HasForeignKey("RecipeId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Procedure");
+
+                    b.Navigation("Recipe");
+                });
+
+            modelBuilder.Entity("PolyclinicDatabaseImplement.Models.SymptomDiagnose", b =>
+                {
+                    b.HasOne("PolyclinicDatabaseImplement.Models.Diagnose", "Diagnose")
+                        .WithMany()
+                        .HasForeignKey("DiagnoseId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("PolyclinicDatabaseImplement.Models.Symptom", "Symptom")
+                        .WithMany("Diagnoses")
+                        .HasForeignKey("SymptomId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Diagnose");
+
+                    b.Navigation("Symptom");
+                });
+
+            modelBuilder.Entity("PolyclinicDatabaseImplement.Models.SymptomRecipe", b =>
+                {
+                    b.HasOne("PolyclinicDatabaseImplement.Models.Recipe", "Recipe")
+                        .WithMany()
+                        .HasForeignKey("RecipeId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("PolyclinicDatabaseImplement.Models.Symptom", "Symptom")
+                        .WithMany()
+                        .HasForeignKey("SymptomId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Recipe");
+
+                    b.Navigation("Symptom");
+                });
+
+            modelBuilder.Entity("PolyclinicDatabaseImplement.Models.Course", b =>
+                {
+                    b.Navigation("Diagnoses");
+                });
+
+            modelBuilder.Entity("PolyclinicDatabaseImplement.Models.Recipe", b =>
+                {
+                    b.Navigation("Procedures");
+                });
+
+            modelBuilder.Entity("PolyclinicDatabaseImplement.Models.Symptom", b =>
+                {
+                    b.Navigation("Diagnoses");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

Polyclinic/PolyclinicDatabaseImplement/Migrations/20240529230147_For-Medicaments.cs

@@ -0,0 +1,167 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace PolyclinicDatabaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class ForMedicaments : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropForeignKey(
+                name: "FK_Medicaments_Procedures_ProcedureId",
+                table: "Medicaments");
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Comment",
+                table: "Symptomes",
+                type: "nvarchar(max)",
+                nullable: true,
+                oldClrType: typeof(string),
+                oldType: "nvarchar(max)");
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Comment",
+                table: "Recipes",
+                type: "nvarchar(max)",
+                nullable: true,
+                oldClrType: typeof(string),
+                oldType: "nvarchar(max)");
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Comment",
+                table: "Procedures",
+                type: "nvarchar(max)",
+                nullable: true,
+                oldClrType: typeof(string),
+                oldType: "nvarchar(max)");
+
+            migrationBuilder.AlterColumn<int>(
+                name: "ProcedureId",
+                table: "Medicaments",
+                type: "int",
+                nullable: true,
+                oldClrType: typeof(int),
+                oldType: "int");
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Comment",
+                table: "Medicaments",
+                type: "nvarchar(max)",
+                nullable: true,
+                oldClrType: typeof(string),
+                oldType: "nvarchar(max)");
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Comment",
+                table: "Diagnoses",
+                type: "nvarchar(max)",
+                nullable: true,
+                oldClrType: typeof(string),
+                oldType: "nvarchar(max)");
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Comment",
+                table: "Courses",
+                type: "nvarchar(max)",
+                nullable: true,
+                oldClrType: typeof(string),
+                oldType: "nvarchar(max)");
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_Medicaments_Procedures_ProcedureId",
+                table: "Medicaments",
+                column: "ProcedureId",
+                principalTable: "Procedures",
+                principalColumn: "Id");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropForeignKey(
+                name: "FK_Medicaments_Procedures_ProcedureId",
+                table: "Medicaments");
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Comment",
+                table: "Symptomes",
+                type: "nvarchar(max)",
+                nullable: false,
+                defaultValue: "",
+                oldClrType: typeof(string),
+                oldType: "nvarchar(max)",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Comment",
+                table: "Recipes",
+                type: "nvarchar(max)",
+                nullable: false,
+                defaultValue: "",
+                oldClrType: typeof(string),
+                oldType: "nvarchar(max)",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Comment",
+                table: "Procedures",
+                type: "nvarchar(max)",
+                nullable: false,
+                defaultValue: "",
+                oldClrType: typeof(string),
+                oldType: "nvarchar(max)",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<int>(
+                name: "ProcedureId",
+                table: "Medicaments",
+                type: "int",
+                nullable: false,
+                defaultValue: 0,
+                oldClrType: typeof(int),
+                oldType: "int",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Comment",
+                table: "Medicaments",
+                type: "nvarchar(max)",
+                nullable: false,
+                defaultValue: "",
+                oldClrType: typeof(string),
+                oldType: "nvarchar(max)",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Comment",
+                table: "Diagnoses",
+                type: "nvarchar(max)",
+                nullable: false,
+                defaultValue: "",
+                oldClrType: typeof(string),
+                oldType: "nvarchar(max)",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Comment",
+                table: "Courses",
+                type: "nvarchar(max)",
+                nullable: false,
+                defaultValue: "",
+                oldClrType: typeof(string),
+                oldType: "nvarchar(max)",
+                oldNullable: true);
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_Medicaments_Procedures_ProcedureId",
+                table: "Medicaments",
+                column: "ProcedureId",
+                principalTable: "Procedures",
+                principalColumn: "Id",
+                onDelete: ReferentialAction.Cascade);
+        }
+    }
+}

Polyclinic/PolyclinicDatabaseImplement/Migrations/PolyclinicDatabaseModelSnapshot.cs

@@ -31,7 +31,6 @@ namespace PolyclinicDatabaseImplement.Migrations
                     SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
 
                     b.Property<string>("Comment")
-                        .IsRequired()
                         .HasColumnType("nvarchar(max)");
 
                     b.Property<int>("DaysCount")
@@ -77,7 +76,6 @@ namespace PolyclinicDatabaseImplement.Migrations
                     SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
 
                     b.Property<string>("Comment")
-                        .IsRequired()
                         .HasColumnType("nvarchar(max)");
 
                     b.Property<DateTime>("DateStartDiagnose")
@@ -109,14 +107,13 @@ namespace PolyclinicDatabaseImplement.Migrations
                     SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
 
                     b.Property<string>("Comment")
-                        .IsRequired()
                         .HasColumnType("nvarchar(max)");
 
                     b.Property<string>("Name")
                         .IsRequired()
                         .HasColumnType("nvarchar(max)");
 
-                    b.Property<int>("ProcedureId")
+                    b.Property<int?>("ProcedureId")
                         .HasColumnType("int");
 
                     b.Property<int?>("SymptomId")
@@ -141,7 +138,6 @@ namespace PolyclinicDatabaseImplement.Migrations
                     SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
 
                     b.Property<string>("Comment")
-                        .IsRequired()
                         .HasColumnType("nvarchar(max)");
 
                     b.Property<DateTime>("DateStartProcedure")
@@ -173,7 +169,6 @@ namespace PolyclinicDatabaseImplement.Migrations
                     SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
 
                     b.Property<string>("Comment")
-                        .IsRequired()
                         .HasColumnType("nvarchar(max)");
 
                     b.Property<int?>("CourseId")
@@ -221,7 +216,6 @@ namespace PolyclinicDatabaseImplement.Migrations
                     SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
 
                     b.Property<string>("Comment")
-                        .IsRequired()
                         .HasColumnType("nvarchar(max)");
 
                     b.Property<string>("Name")
@@ -341,9 +335,7 @@ namespace PolyclinicDatabaseImplement.Migrations
                 {
                     b.HasOne("PolyclinicDatabaseImplement.Models.Procedure", "Procedure")
                         .WithMany()
-                        .HasForeignKey("ProcedureId")
+                        .HasForeignKey("ProcedureId");
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
 
                     b.HasOne("PolyclinicDatabaseImplement.Models.Symptom", "Symptom")
                         .WithMany()

Polyclinic/PolyclinicDatabaseImplement/Models/Medicament.cs

@@ -15,8 +15,7 @@ namespace PolyclinicDatabaseImplement.Models
 
         public string? Comment { get; set; } = string.Empty;
 
-        [Required]
+        public int? ProcedureId { get; set; }
-        public int ProcedureId { get; set; }
 
         [Required]
         public int? SymptomId { get; set; }
@@ -49,7 +48,7 @@ namespace PolyclinicDatabaseImplement.Models
             Id = Id,
             Name = Name,
             Comment = Comment,
-            ProcedureId = ProcedureId,
+            ProcedureId = Procedure?.Id ?? null,
             SymptomId = Symptom?.Id ?? null,
             SymptomName = Symptom?.Name ?? string.Empty,
             ProcedureName = Procedure?.Name ?? string.Empty,