43 lines
1.5 KiB
C#
43 lines
1.5 KiB
C#
using Microsoft.EntityFrameworkCore.Metadata.Builders;
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using Microsoft.EntityFrameworkCore.Metadata.Conventions;
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using System;
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using System.Collections.Generic;
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using System.ComponentModel.DataAnnotations;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace IRaCIS.Core.Infra.EFCore;
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/// <summary>
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/// 设置decimal 默认精度问题 （但是用ef迁移工具的时候，还是会提示No store type was specified for the decimal property，但是迁移文件里面体现了该配置，在dbcontext里写，那么就会没该警告）
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/// </summary>
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public class DecimalPrecisionConvention : IModelFinalizingConvention
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{
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private readonly int _precision;
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private readonly int _scale;
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public DecimalPrecisionConvention(int precision, int scale)
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{
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_precision = precision;
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_scale = scale;
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}
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public void ProcessModelFinalizing(IConventionModelBuilder modelBuilder, IConventionContext<IConventionModelBuilder> context)
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{
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foreach (var property in modelBuilder.Metadata.GetEntityTypes()
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.SelectMany(
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entityType => entityType.GetDeclaredProperties()
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.Where(
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property => property.ClrType == typeof(decimal) || property.ClrType == typeof(decimal?))))
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{
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// 设置精度和小数位数
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property.SetPrecision(_precision);
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property.SetScale(_scale);
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}
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}
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}
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