How do I enable EF migrations for multiple contexts to separate databases?
.net, database-migration, entity-framework, entity-framework-5
Solution
The 2nd call to Enable-Migrations is failing because the Configuration.cs file already exists. If you rename that class and file, you should be able to run that 2nd Enable-Migrations, which will create another Configuration.cs.
You will then need to specify which configuration you want to use when updating the databases.
Update-Database -ConfigurationTypeName MyRenamedConfiguration
Problem
How do I enable Entity Framework 5 (version 5.0.0) migrations for multiple DB contexts in the same project, where each context corresponds to its own database? When I run `Enable-Migrations` in the PM console (Visual Studio 2012), there's an error because of there being multiple contexts: ``` PM> Enable-Migrations More than one context type was found in the assembly 'DatabaseService'. To enable migrations for DatabaseService.Models.Product1DbContext, use Enable-Migrations -ContextTypeName DatabaseService.Models.Product1DbContext. To enable migrations for DatabaseService.Models.Product2DbContext, use Enable-Migrations -ContextTypeName DatabaseService.Models.Product2DbContext. ``` If I run `Enable-Migrations -ContextTypeName DatabaseService.Models.Product1DbContext` I'm not allowed to run `Enable-Migrations -ContextTypeName DatabaseService.Models.Product2DbContext` because a migration already exists: `Migrations have already been enabled in project 'DatabaseService'. To overwrite the existing migrations configuration, use the -Force parameter.`