biss
ec28eb6c16
将候补迁移改为可重入：先检查列和索引是否存在，再执行 DDL。 附件中已经成功添加 WaitlistedAt、但索引创建失败的数据库可直接重试，不会报重复列。 运行时和 dotnet ef 连接统一开启 AllowUserVariables；Connector/NET 默认关闭该选项。Connector/NET 官方说明 增加所有 MySQL 索引名不得超过 64 字符的回归测试。
21 lines
714 B
C#
21 lines
714 B
C#
using Microsoft.EntityFrameworkCore;
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using Microsoft.EntityFrameworkCore.Design;
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namespace Jiaowu.Api.Infrastructure.Persistence;
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public sealed class AppDbContextFactory : IDesignTimeDbContextFactory<AppDbContext>
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{
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public AppDbContext CreateDbContext(string[] args)
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{
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var connectionString =
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Environment.GetEnvironmentVariable("ConnectionStrings__MySql")
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?? "Server=localhost;Port=3306;Database=jiaowu;User=__design_time__;Password=__not_used__;";
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var options = new DbContextOptionsBuilder<AppDbContext>()
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.UseMySQL(MySqlConnectionStringPolicy.ForApplication(connectionString))
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.Options;
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return new AppDbContext(options);
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}
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}
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