// Entity Framework Extensions

// Doc: https://entityframework-extensions.net/delete-from-query

​

// @nuget: Microsoft.EntityFrameworkCore.SqlServer

// @nuget: Z.EntityFramework.Extensions.EFCore

​

using System;

using System.Linq;

using Microsoft.EntityFrameworkCore;

using System.Collections.Generic;

using Microsoft.Data.SqlClient;

​

public class Program

{

    public static void Main()

    {

        using (var context = new EntityContext())

        {

            context.Database.EnsureCreated();

            var child = new BrokenFilterChildEntity { BrokenFilterParentEntity = new BrokenFilterParentEntity() };

            context.Add(child);

            context.SaveChanges();

            context.Set<BrokenFilterChildEntity>().UpdateFromQuery(x => new BrokenFilterChildEntity { Value = x.Value + 1 });

        }

    }

    private class BrokenFilterParentEntity

    {

        public int BrokenFilterParentEntityId { get; set; }

        public List<BrokenFilterChildEntity> BrokenFilterChildEntities { get; set; }

        public bool IsFiltered { get; set; }

    }

    private class BrokenFilterChildEntity

    {

        public int BrokenFilterChildEntityId { get; set; }

        public int Value { get; set; }

        public int BrokenFilterParentEntityId { get; set; }

        public BrokenFilterParentEntity BrokenFilterParentEntity { get; set; }

    }

    public class EntityContext : DbContext

    {

        public EntityContext() 

        {

        }

​

        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)

        {

            optionsBuilder.UseSqlServer(new SqlConnection(FiddleHelper.GetConnectionStringSqlServer()));

​

            base.OnConfiguring(optionsBuilder);

        }

        protected override void OnModelCreating(ModelBuilder modelBuilder)

        {

            modelBuilder.Entity<BrokenFilterParentEntity>().HasQueryFilter(x=>!x.IsFiltered);

            modelBuilder.Entity<BrokenFilterChildEntity>().HasQueryFilter(x => !x.BrokenFilterParentEntity.IsFiltered);

​

            base.OnModelCreating(modelBuilder);

        }

    }

}