EF运行种子方法没有模型变化 [英] EF run Seed method without model changes

问题描述

我在Azure中托管了一个webAPI作为我的后端。我正在使用Code-First来创建我的实体。我可以通过种子方法预先给我的数据库，但是如果我完成了我的模型更改，然后记得我需要添加一些种子，没有办法运行种子方法。
多个帖子建议简单运行update-database。我确实看到：跑种子。然后发布到天蓝色，我的桌子还是空的。我不想改变模型只是为了触发种子，因为这只是不干净的解决方案。

I have a webAPI hosted in Azure as my back-end. I am using Code-First to create my entities. I can pre-feed my DB fine via the seed method, but if I am done with my model changes and then remember that I need to add something to the seed, there is no way to run the seed method. Multiple posts suggest the simple run update-database. I do see: "Running Seed method." and then publish to azure, my table is still empty. And I don't want to change the models just to trigger the seed, because that is just not clean solution.

我已经尝试使用每个注释行，但无效

I have already tried using each of the commented lines but no avail

    public MyContext() : base("name=MyContext")
    {
        //Database.SetInitializer(new MigrateDatabaseToLatestVersion<MyContext, MyProject.Migrations.Configuration>("DefaultConnection"));
        //Database.SetInitializer<MyContext>(new DropCreateDatabaseAlways<MyContext>());
    }

有什么我应该在天蓝色的一面做，还是只是明白地我没有工作，除非我改变我的模型！

is there something I should be doing at the azure side or it just plainly doesn't work unless I change one my models!?

我已经是迁移文件夹，启用它并更新数据库的命令，以及当我更改模型时，数据库更新很好。那工作，没有问题。唯一的问题，如果我想添加的东西到种子方法，我想执行它，而不必更改我的模型。

I already the migrations folder and follow the commands to enable it and update the db and when I have a model change, the db updates just fine. That works, no issue there. The only issue if I want to add things to the seed method and I want to execute it without having to change my model.

推荐答案

如果您先使用代码，那么您可以轻松管理和处理所有迁移。

If you are using code first then you can manage and handle all your migrations easily.

您需要使用包管理器控制台键入enable-migrations。此后，您将有一个名为Migrations的文件夹。

you need to type "enable-migrations" using package manger console.After this you will have a folder named Migrations.

检查此链接以获取更多信息。

Check this link for additional information.

请知道您是否有任何问题。

Let know if you have any issues.

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