using Microsoft.EntityFrameworkCore.Metadata.Builders;
using Microsoft.EntityFrameworkCore.Metadata.Conventions;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace IRaCIS.Core.Test
{
    /// <summary>
    /// Efcore 最新支持批量配置字符串类型长度作为保底的    官网参考：https://learn.microsoft.com/zh-cn/ef/core/modeling/bulk-configuration#conventions
    /// </summary>
    public class MaxStringLengthConvention : IModelFinalizingConvention
    {
        public void ProcessModelFinalizing(IConventionModelBuilder modelBuilder, IConventionContext<IConventionModelBuilder> context)
        {
            foreach (var property in modelBuilder.Metadata.GetEntityTypes()
                         .SelectMany(
                             entityType => entityType.GetDeclaredProperties()
                                 .Where(
                                     property => property.ClrType == typeof(string))))
            {
                property.Builder.HasMaxLength(200);  
            }
        }
    }

}