Posted by Weston Ganger
Sometimes you may need to fix your database by running the some migration commands in the console or in your code. Heres how to do so.
# To run single migration actions ActiveRecord::Migration.add_column(:table_name, :column_name, :integer) # To run all migrations ActiveRecord::Migrator.migrate('db/migrate') # To rollback 3 migrations ActiveRecord::Migrator.rollback('db/migrate', 3)
Related External Links: