diff --git a/demo_2023/Models/Activity.cs b/demo_2023/Models/Activity.cs
new file mode 100644
index 0000000..f520945
--- /dev/null
+++ b/demo_2023/Models/Activity.cs
@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+
+namespace demo_2023.Models;
+
+public partial class Activity
+{
+    public int Id { get; set; }
+
+    public string Name { get; set; } = null!;
+
+    public virtual ICollection<Client> Moderators { get; set; } = new List<Client>();
+
+    public virtual ICollection<Client> Winners { get; set; } = new List<Client>();
+}
diff --git a/demo_2023/Models/City.cs b/demo_2023/Models/City.cs
new file mode 100644
index 0000000..d9ac719
--- /dev/null
+++ b/demo_2023/Models/City.cs
@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+
+namespace demo_2023.Models;
+
+public partial class City
+{
+    public int Id { get; set; }
+
+    public string Name { get; set; } = null!;
+
+    public virtual ICollection<Event> Events { get; set; } = new List<Event>();
+}
diff --git a/demo_2023/Models/Client.cs b/demo_2023/Models/Client.cs
new file mode 100644
index 0000000..544ec34
--- /dev/null
+++ b/demo_2023/Models/Client.cs
@@ -0,0 +1,37 @@
+using System;
+using System.Collections.Generic;
+
+namespace demo_2023.Models;
+
+public partial class Client
+{
+    public int Id { get; set; }
+
+    public string Fio { get; set; } = null!;
+
+    public string Email { get; set; } = null!;
+
+    public DateTime Date { get; set; }
+
+    public int Country { get; set; }
+
+    public string Phone { get; set; } = null!;
+
+    public string Password { get; set; } = null!;
+
+    public string? Spec { get; set; }
+
+    public string Photopath { get; set; } = null!;
+
+    public char Gender { get; set; }
+
+    public int Role { get; set; }
+
+    public virtual Country CountryNavigation { get; set; } = null!;
+
+    public virtual Role RoleNavigation { get; set; } = null!;
+
+    public virtual ICollection<Activity> Activities { get; set; } = new List<Activity>();
+
+    public virtual ICollection<Activity> ActivitiesNavigation { get; set; } = new List<Activity>();
+}
diff --git a/demo_2023/Models/Country.cs b/demo_2023/Models/Country.cs
new file mode 100644
index 0000000..f8b8d6b
--- /dev/null
+++ b/demo_2023/Models/Country.cs
@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+
+namespace demo_2023.Models;
+
+public partial class Country
+{
+    public int Id { get; set; }
+
+    public string Name { get; set; } = null!;
+
+    public string EnName { get; set; } = null!;
+
+    public string Code { get; set; } = null!;
+
+    public int Code2 { get; set; }
+
+    public virtual ICollection<Client> Clients { get; set; } = new List<Client>();
+}
diff --git a/demo_2023/Models/Event.cs b/demo_2023/Models/Event.cs
new file mode 100644
index 0000000..bdd43b0
--- /dev/null
+++ b/demo_2023/Models/Event.cs
@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+
+namespace demo_2023.Models;
+
+public partial class Event
+{
+    public int Id { get; set; }
+
+    public string Sobitie { get; set; } = null!;
+
+    public DateTime Date { get; set; }
+
+    public int Days { get; set; }
+
+    public int City { get; set; }
+
+    public string? Photo { get; set; }
+
+    public virtual City CityNavigation { get; set; } = null!;
+}
diff --git a/demo_2023/Models/Eventactivity.cs b/demo_2023/Models/Eventactivity.cs
new file mode 100644
index 0000000..eff6a5e
--- /dev/null
+++ b/demo_2023/Models/Eventactivity.cs
@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+
+namespace demo_2023.Models;
+
+public partial class Eventactivity
+{
+    public int Eventid { get; set; }
+
+    public int Activityid { get; set; }
+
+    public virtual Activity Activity { get; set; } = null!;
+
+    public virtual Event Event { get; set; } = null!;
+}
diff --git a/demo_2023/Models/Jhuriactivity.cs b/demo_2023/Models/Jhuriactivity.cs
new file mode 100644
index 0000000..e865d62
--- /dev/null
+++ b/demo_2023/Models/Jhuriactivity.cs
@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+
+namespace demo_2023.Models;
+
+public partial class Jhuriactivity
+{
+    public int Activityid { get; set; }
+
+    public int? Jhuriid { get; set; }
+
+    public virtual Activity Activity { get; set; } = null!;
+
+    public virtual Client? Jhuri { get; set; }
+}
diff --git a/demo_2023/Models/JuryEvent.cs b/demo_2023/Models/JuryEvent.cs
new file mode 100644
index 0000000..e1b8388
--- /dev/null
+++ b/demo_2023/Models/JuryEvent.cs
@@ -0,0 +1,11 @@
+using System;
+using System.Collections.Generic;
+
+namespace demo_2023.Models;
+
+public partial class JuryEvent
+{
+    public int? JuryId { get; set; }
+
+    public int? EventId { get; set; }
+}
diff --git a/demo_2023/Models/ModerEvent.cs b/demo_2023/Models/ModerEvent.cs
new file mode 100644
index 0000000..0b473e2
--- /dev/null
+++ b/demo_2023/Models/ModerEvent.cs
@@ -0,0 +1,11 @@
+using System;
+using System.Collections.Generic;
+
+namespace demo_2023.Models;
+
+public partial class ModerEvent
+{
+    public int? ModerId { get; set; }
+
+    public int? EventId { get; set; }
+}
diff --git a/demo_2023/Models/Role.cs b/demo_2023/Models/Role.cs
new file mode 100644
index 0000000..fab52b1
--- /dev/null
+++ b/demo_2023/Models/Role.cs
@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+
+namespace demo_2023.Models;
+
+public partial class Role
+{
+    public int Id { get; set; }
+
+    public string Name { get; set; } = null!;
+
+    public virtual ICollection<Client> Clients { get; set; } = new List<Client>();
+}
diff --git a/demo_2023/Models/User15Context.cs b/demo_2023/Models/User15Context.cs
new file mode 100644
index 0000000..225f35f
--- /dev/null
+++ b/demo_2023/Models/User15Context.cs
@@ -0,0 +1,310 @@
+using System;
+using System.Collections.Generic;
+using Microsoft.EntityFrameworkCore;
+
+namespace demo_2023.Models;
+
+public partial class User15Context : DbContext
+{
+    public User15Context()
+    {
+    }
+
+    public User15Context(DbContextOptions<User15Context> options)
+        : base(options)
+    {
+    }
+
+    public virtual DbSet<Activity> Activities { get; set; }
+
+    public virtual DbSet<City> Cities { get; set; }
+
+    public virtual DbSet<Client> Clients { get; set; }
+
+    public virtual DbSet<Country> Countries { get; set; }
+
+    public virtual DbSet<Event> Events { get; set; }
+
+    public virtual DbSet<Eventactivity> Eventactivities { get; set; }
+
+    public virtual DbSet<Jhuriactivity> Jhuriactivities { get; set; }
+
+    public virtual DbSet<JuryEvent> JuryEvents { get; set; }
+
+    public virtual DbSet<ModerEvent> ModerEvents { get; set; }
+
+    public virtual DbSet<Role> Roles { get; set; }
+
+    public virtual DbSet<ValidActivityJhuri> ValidActivityJhuris { get; set; }
+
+    public virtual DbSet<ValidActivityModerator> ValidActivityModerators { get; set; }
+
+    public virtual DbSet<ValidActivityWinner> ValidActivityWinners { get; set; }
+
+    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+#warning To protect potentially sensitive information in your connection string, you should move it out of source code. You can avoid scaffolding the connection string by using the Name= syntax to read it from configuration - see https://go.microsoft.com/fwlink/?linkid=2131148. For more guidance on storing connection strings, see https://go.microsoft.com/fwlink/?LinkId=723263.
+        => optionsBuilder.UseNpgsql("Host=45.67.56.214;Username=user15;Port=5421;Database=user15;Password=3XkvwMOb");
+
+    protected override void OnModelCreating(ModelBuilder modelBuilder)
+    {
+        modelBuilder.Entity<Activity>(entity =>
+        {
+            entity.HasKey(e => e.Id).HasName("activity_pkey");
+
+            entity.ToTable("activity");
+
+            entity.Property(e => e.Id).HasColumnName("id");
+            entity.Property(e => e.Name)
+                .HasMaxLength(100)
+                .HasColumnName("name");
+
+            entity.HasMany(d => d.Moderators).WithMany(p => p.Activities)
+                .UsingEntity<Dictionary<string, object>>(
+                    "Activitymoderator",
+                    r => r.HasOne<Client>().WithMany()
+                        .HasForeignKey("Moderatorid")
+                        .OnDelete(DeleteBehavior.ClientSetNull)
+                        .HasConstraintName("fk_moderator"),
+                    l => l.HasOne<Activity>().WithMany()
+                        .HasForeignKey("Activityid")
+                        .OnDelete(DeleteBehavior.ClientSetNull)
+                        .HasConstraintName("fk_activity"),
+                    j =>
+                    {
+                        j.HasKey("Activityid", "Moderatorid").HasName("activitymoderator_pkey");
+                        j.ToTable("activitymoderator");
+                        j.IndexerProperty<int>("Activityid").HasColumnName("activityid");
+                        j.IndexerProperty<int>("Moderatorid").HasColumnName("moderatorid");
+                    });
+
+            entity.HasMany(d => d.Winners).WithMany(p => p.ActivitiesNavigation)
+                .UsingEntity<Dictionary<string, object>>(
+                    "Activitywinner",
+                    r => r.HasOne<Client>().WithMany()
+                        .HasForeignKey("Winnerid")
+                        .OnDelete(DeleteBehavior.ClientSetNull)
+                        .HasConstraintName("fk_moderator"),
+                    l => l.HasOne<Activity>().WithMany()
+                        .HasForeignKey("Activityid")
+                        .OnDelete(DeleteBehavior.ClientSetNull)
+                        .HasConstraintName("fk_activity"),
+                    j =>
+                    {
+                        j.HasKey("Activityid", "Winnerid").HasName("activitywinner_pkey");
+                        j.ToTable("activitywinner");
+                        j.IndexerProperty<int>("Activityid").HasColumnName("activityid");
+                        j.IndexerProperty<int>("Winnerid").HasColumnName("winnerid");
+                    });
+        });
+
+        modelBuilder.Entity<City>(entity =>
+        {
+            entity.HasKey(e => e.Id).HasName("city_pkey");
+
+            entity.ToTable("city");
+
+            entity.Property(e => e.Id).HasColumnName("id");
+            entity.Property(e => e.Name)
+                .HasMaxLength(100)
+                .HasColumnName("name");
+        });
+
+        modelBuilder.Entity<Client>(entity =>
+        {
+            entity.HasKey(e => e.Id).HasName("clients_pkey");
+
+            entity.ToTable("clients");
+
+            entity.Property(e => e.Id).HasColumnName("id");
+            entity.Property(e => e.Country).HasColumnName("country");
+            entity.Property(e => e.Date)
+                .HasColumnType("timestamp(6) without time zone")
+                .HasColumnName("date");
+            entity.Property(e => e.Email)
+                .HasMaxLength(100)
+                .HasColumnName("email");
+            entity.Property(e => e.Fio)
+                .HasMaxLength(200)
+                .HasColumnName("fio");
+            entity.Property(e => e.Gender)
+                .HasMaxLength(1)
+                .HasColumnName("gender");
+            entity.Property(e => e.Password)
+                .HasMaxLength(50)
+                .HasColumnName("password");
+            entity.Property(e => e.Phone)
+                .HasMaxLength(20)
+                .HasColumnName("phone");
+            entity.Property(e => e.Photopath)
+                .HasMaxLength(100)
+                .HasColumnName("photopath");
+            entity.Property(e => e.Role).HasColumnName("role");
+            entity.Property(e => e.Spec)
+                .HasMaxLength(50)
+                .HasColumnName("spec");
+
+            entity.HasOne(d => d.CountryNavigation).WithMany(p => p.Clients)
+                .HasForeignKey(d => d.Country)
+                .OnDelete(DeleteBehavior.ClientSetNull)
+                .HasConstraintName("fk_country");
+
+            entity.HasOne(d => d.RoleNavigation).WithMany(p => p.Clients)
+                .HasForeignKey(d => d.Role)
+                .OnDelete(DeleteBehavior.ClientSetNull)
+                .HasConstraintName("fk_role");
+        });
+
+        modelBuilder.Entity<Country>(entity =>
+        {
+            entity.HasKey(e => e.Id).HasName("country_pkey");
+
+            entity.ToTable("country");
+
+            entity.HasIndex(e => e.Code2, "country_code2_key").IsUnique();
+
+            entity.Property(e => e.Id).HasColumnName("id");
+            entity.Property(e => e.Code)
+                .HasMaxLength(5)
+                .HasColumnName("code");
+            entity.Property(e => e.Code2).HasColumnName("code2");
+            entity.Property(e => e.EnName)
+                .HasMaxLength(100)
+                .HasColumnName("en_name");
+            entity.Property(e => e.Name)
+                .HasMaxLength(100)
+                .HasColumnName("name");
+        });
+
+        modelBuilder.Entity<Event>(entity =>
+        {
+            entity.HasKey(e => e.Id).HasName("event_pkey");
+
+            entity.ToTable("event");
+
+            entity.HasIndex(e => e.Date, "event_date_key").IsUnique();
+
+            entity.Property(e => e.Id).HasColumnName("id");
+            entity.Property(e => e.City).HasColumnName("city");
+            entity.Property(e => e.Date)
+                .HasColumnType("timestamp(6) without time zone")
+                .HasColumnName("date");
+            entity.Property(e => e.Days).HasColumnName("days");
+            entity.Property(e => e.Photo)
+                .HasMaxLength(100)
+                .HasColumnName("photo");
+            entity.Property(e => e.Sobitie)
+                .HasMaxLength(200)
+                .HasColumnName("sobitie");
+
+            entity.HasOne(d => d.CityNavigation).WithMany(p => p.Events)
+                .HasForeignKey(d => d.City)
+                .OnDelete(DeleteBehavior.ClientSetNull)
+                .HasConstraintName("fk_city");
+        });
+
+        modelBuilder.Entity<Eventactivity>(entity =>
+        {
+            entity
+                .HasNoKey()
+                .ToTable("eventactivity");
+
+            entity.Property(e => e.Activityid).HasColumnName("activityid");
+            entity.Property(e => e.Eventid).HasColumnName("eventid");
+
+            entity.HasOne(d => d.Activity).WithMany()
+                .HasForeignKey(d => d.Activityid)
+                .OnDelete(DeleteBehavior.ClientSetNull)
+                .HasConstraintName("fk_activity");
+
+            entity.HasOne(d => d.Event).WithMany()
+                .HasForeignKey(d => d.Eventid)
+                .OnDelete(DeleteBehavior.ClientSetNull)
+                .HasConstraintName("fk_event");
+        });
+
+        modelBuilder.Entity<Jhuriactivity>(entity =>
+        {
+            entity
+                .HasNoKey()
+                .ToTable("jhuriactivity");
+
+            entity.Property(e => e.Activityid).HasColumnName("activityid");
+            entity.Property(e => e.Jhuriid).HasColumnName("jhuriid");
+
+            entity.HasOne(d => d.Activity).WithMany()
+                .HasForeignKey(d => d.Activityid)
+                .OnDelete(DeleteBehavior.ClientSetNull)
+                .HasConstraintName("fk_activity");
+
+            entity.HasOne(d => d.Jhuri).WithMany()
+                .HasForeignKey(d => d.Jhuriid)
+                .HasConstraintName("fk_moderator");
+        });
+
+        modelBuilder.Entity<JuryEvent>(entity =>
+        {
+            entity
+                .HasNoKey()
+                .ToTable("jury_event");
+
+            entity.Property(e => e.EventId).HasColumnName("event_id");
+            entity.Property(e => e.JuryId).HasColumnName("jury_id");
+        });
+
+        modelBuilder.Entity<ModerEvent>(entity =>
+        {
+            entity
+                .HasNoKey()
+                .ToTable("moder_event");
+
+            entity.Property(e => e.EventId).HasColumnName("event_id");
+            entity.Property(e => e.ModerId).HasColumnName("moder_id");
+        });
+
+        modelBuilder.Entity<Role>(entity =>
+        {
+            entity.HasKey(e => e.Id).HasName("roles_pkey");
+
+            entity.ToTable("roles");
+
+            entity.Property(e => e.Id).HasColumnName("id");
+            entity.Property(e => e.Name)
+                .HasMaxLength(20)
+                .HasColumnName("name");
+        });
+
+        modelBuilder.Entity<ValidActivityJhuri>(entity =>
+        {
+            entity
+                .HasNoKey()
+                .ToView("valid_activity_jhuri");
+
+            entity.Property(e => e.Activityid).HasColumnName("activityid");
+            entity.Property(e => e.Jhuriid).HasColumnName("jhuriid");
+        });
+
+        modelBuilder.Entity<ValidActivityModerator>(entity =>
+        {
+            entity
+                .HasNoKey()
+                .ToView("valid_activity_moderators");
+
+            entity.Property(e => e.Activityid).HasColumnName("activityid");
+            entity.Property(e => e.Moderatorid).HasColumnName("moderatorid");
+        });
+
+        modelBuilder.Entity<ValidActivityWinner>(entity =>
+        {
+            entity
+                .HasNoKey()
+                .ToView("valid_activity_winners");
+
+            entity.Property(e => e.Activityid).HasColumnName("activityid");
+            entity.Property(e => e.Winnerid).HasColumnName("winnerid");
+        });
+
+        OnModelCreatingPartial(modelBuilder);
+    }
+
+    partial void OnModelCreatingPartial(ModelBuilder modelBuilder);
+}
diff --git a/demo_2023/Models/ValidActivityJhuri.cs b/demo_2023/Models/ValidActivityJhuri.cs
new file mode 100644
index 0000000..ad89630
--- /dev/null
+++ b/demo_2023/Models/ValidActivityJhuri.cs
@@ -0,0 +1,11 @@
+using System;
+using System.Collections.Generic;
+
+namespace demo_2023.Models;
+
+public partial class ValidActivityJhuri
+{
+    public int? Activityid { get; set; }
+
+    public int? Jhuriid { get; set; }
+}
diff --git a/demo_2023/Models/ValidActivityModerator.cs b/demo_2023/Models/ValidActivityModerator.cs
new file mode 100644
index 0000000..22818ed
--- /dev/null
+++ b/demo_2023/Models/ValidActivityModerator.cs
@@ -0,0 +1,11 @@
+using System;
+using System.Collections.Generic;
+
+namespace demo_2023.Models;
+
+public partial class ValidActivityModerator
+{
+    public int? Activityid { get; set; }
+
+    public int? Moderatorid { get; set; }
+}
diff --git a/demo_2023/Models/ValidActivityWinner.cs b/demo_2023/Models/ValidActivityWinner.cs
new file mode 100644
index 0000000..d51d7ae
--- /dev/null
+++ b/demo_2023/Models/ValidActivityWinner.cs
@@ -0,0 +1,11 @@
+using System;
+using System.Collections.Generic;
+
+namespace demo_2023.Models;
+
+public partial class ValidActivityWinner
+{
+    public int? Activityid { get; set; }
+
+    public int? Winnerid { get; set; }
+}