How to ignore a table/class in EF 4.3 migrations

Question

I\'m testing with EF 4.3 (beta)

I have some new classes which should generate db tables and columns.

From a old project i have some old tables in my schema,

Answer 1

With EF 4.3.1 released there is built in support for this scenario. When adding classes that are mapped to existing tables in the database, use the -IgnoreChanges switch to Add-Migration.

This will generate an empty migration, with an updated meta-data signature that contains the newly added classes.

Usually this is done when starting using EF Migrations, hence the "InitialMigration" name:

Add-Migration InitialMigration –IgnoreChanges