如何更改更新数据库ef迁移的连接字符串? [英] How do I change connection string for Update-Database ef migrations?
问题描述
我正在尝试运行Update-Database,并且我想指定连接字符串,但是CLI在寻找错误的字符串.我的appsettings.json文件中有两个连接字符串:
I am trying to run Update-Database, and I would like to specify the connection string, but the CLI is looking at the wrong one. There are two connection strings in my appsettings.json file:
{
"Logging": {
"IncludeScopes": false,
"LogLevel": {
"Default": "Warning"
}
},
"ConnectionStrings": {
"LocalWindows": "data source=.\\SQLEXPRESS;initial catalog=Intranet;persist security info=True;integrated security=true;",
"AzureDevelopment": "Server=tcp:en..."
}
}
当我运行Update-Database时,AzureDevelopment始终是它使用的键.因此,如果我将LocalWindows连接字符串复制到AzureDevelopment的值,它将更新正确的数据库.此外,如果我删除AzureDevelopment却像这样离开LocalWindows:
When I run Update-Database, AzureDevelopment is always the key it uses. So if I copy the LocalWindows connectionstring to AzureDevelopment's value, it updates the correct database. Furthermore, if I delete AzureDevelopment but leave LocalWindows like this:
{
"Logging": {
"IncludeScopes": false,
"LogLevel": {
"Default": "Warning"
}
},
"ConnectionStrings": {
"LocalWindows": "data source=.\\SQLEXPRESS;initial catalog=Intranet;persist security info=True;integrated security=true;"
}
}
我得到:
Value cannot be null.
Parameter name: connectionString
因此,似乎在某些时候,CLI选择使用AzureDevelopment字符串,并且我无法再更改键或提供连接字符串作为参数.
So it seems at some point, the CLI chose to use the AzureDevelopment string, and I can no longer change the key or supply the connection string as an argument.
我的问题是,迁移CLI如何知道要使用的连接字符串?它是通过启动设置上的反射魔术来检测字符串还是什么?我在网上看到的所有信息是如何在运行Update-Database时指定项目.CLI曾经有-ConnectionString和-ConnectionStringName参数,但是这些参数不再可用.
My question is how does the migrations CLI know what connection string to use? Is it detecting the string through some reflection magic on the startup settings or what? All I see online is how to specify the project when running Update-Database. There used to be -ConnectionString and -ConnectionStringName parameters for the CLI, but those are no longer available.
推荐答案
我要做的就是在PowerShell中执行以下操作:
All I had to do was the following in PowerShell:
$ env:ASPNETCORE_ENVIRONMENT ='LocalWindows'dotnet ef数据库更新
或
$ env:ASPNETCORE_ENVIRONMENT ='LocalWindows'更新数据库
使用 Update-Database -verbose
启用详细信息还会在输出中显示环境,以确保其达到正确的环境.
Turning on verbose with Update-Database -verbose
also shows you the environment in the output to make sure it's hitting the correct one.
什么不起作用:
- 在Windows中设置全局ASPNETCORE_ENVIRONMENT环境变量
- 在项目"->设置"->调试"屏幕中设置ASPNETCORE_ENVIRONMENT环境变量
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