[英]Can Entity Framework 6 migrations include a transaction around scripts?
Very simple question, i am using migrations in entity framework 6, and like the command 非常简单的问题,我在实体框架6中使用迁移,并且像命令一样
update-database -script
But is there a way of generating the script but have it wrapped with a transaction? 但有没有一种方法可以生成脚本但是用事务包装它?
Problem is that if the script fails, i have to unpick it 问题是,如果脚本失败,我必须取消它
This is what I'm using only on release mode to generate the scripts: 这就是我只在发布模式下使用来生成脚本:
public class MigrationScriptBuilder : SqlServerMigrationSqlGenerator
{
#if !DEBUG
protected override void Generate(SqlOperation sqlOperation)
{
Statement("GO");
base.Generate(sqlOperation);
Statement("GO");
}
public override IEnumerable<MigrationStatement> Generate(IEnumerable<MigrationOperation> migrationOperations, string providerManifestToken)
{
yield return new MigrationStatement {Sql = "BEGIN TRAN"};
foreach (var migrationStatement in base.Generate(migrationOperations, providerManifestToken))
{
yield return migrationStatement;
}
yield return new MigrationStatement {Sql = "COMMIT TRAN"};
}
#endif
}
You should wire that in your DatabaseMigrationsConfiguration
. 您应该在DatabaseMigrationsConfiguration
。 Example: 例:
public sealed class DatabaseMigrationsConfiguration : DbMigrationsConfiguration<DatabaseContext>
{
public DatabaseMigrationsConfiguration()
{
SetSqlGenerator("System.Data.SqlClient", new MigrationScriptBuilder());
}
}
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