测试迁移移除外键

2024-09-11 23:53:58 +08:00
parent 2bf562d027
commit 70c381831d
11 changed files with 1737 additions and 11 deletions
@@ -0,0 +1,29 @@
+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);  
+            }
+        }
+    }
+
+}