progectone/Models/PostgresContext.cs

using System;
using System.Collections.Generic;
using Microsoft.EntityFrameworkCore;

namespace AvaloniaApplication4.Models;

public partial class PostgresContext : DbContext
{
    public PostgresContext()
    {
    }

    public PostgresContext(DbContextOptions<PostgresContext> options)
        : base(options)
    {
    }

    public virtual DbSet<Product> Products { 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 http://go.microsoft.com/fwlink/?LinkId=723263.
        => optionsBuilder.UseNpgsql("Host=localhost;Port=5432;Database=postgres;Username=postgres;Password=123qwe12qw");

    protected override void OnModelCreating(ModelBuilder modelBuilder)
    {
        modelBuilder.HasPostgresExtension("pg_catalog", "adminpack");

        modelBuilder.Entity<Product>(entity =>
        {
            entity
                .HasNoKey()
                .ToTable("product");

            entity.Property(e => e.Color)
                .HasMaxLength(20)
                .HasColumnName("color");
            entity.Property(e => e.Count).HasColumnName("count");
            entity.Property(e => e.Country)
                .HasMaxLength(40)
                .HasColumnName("country");
            entity.Property(e => e.Id).HasColumnName("id");
            entity.Property(e => e.Price)
                .HasColumnType("money")
                .HasColumnName("price");
            entity.Property(e => e.Аutomobile).HasMaxLength(40);
        });

        OnModelCreatingPartial(modelBuilder);
    }

    partial void OnModelCreatingPartial(ModelBuilder modelBuilder);
}