LocalDb的代码优先迁移和DataDirectory

Question

It looks like the command "Update-Database" uses the Default Project's directory as the AppDomain instead of the Start-up Project's.

I have a separate class library project that contains everything related to the database access, including the models and migrations, let's call it Project.Data . One of the unit tests for this project requires me to run it on a LocalDb. So I created a connection string within the unit test's app.config.

Data Source=(LocalDb)\MSSQLLocalDB;AttachDbFilename=|DataDirectory|\MyDb.mdf;Initial Catalog=MyDb;Integrated Security=True

but the DataDirectory's value is null when I run the command "Update-Database". And using the AppDomain's work directory is kinda unreliable here.

How can I use the Unit Test's work directory when I run the "Update-Database" when the models and migrations-relate codes are in a separate class library?

Answer 1

I think you have to you use the ProjectName or StartUpProjectName parameter when executing the update-database command.

See here for more details: update-database command reference

Update-Database [-SourceMigration <String>] [-TargetMigration <String>] [-Script] [-Force] 
  [-ProjectName <String>] [-StartUpProjectName <String>] [-ConfigurationTypeName <String>] 
  -ConnectionString <String> -ConnectionProviderName <String> 
  [-AppDomainBaseDirectory <String>] [<CommonParameters>]