Contents

module DbCharmer
  module MultiDbMigrations
    @@multi_db_name = nil

    def migrate_with_db_wrapper(direction)
      on_db(@@multi_db_name) { migrate_without_db_wrapper(direction) }
    end

    def on_db(db_name)
      announce "Switching connection to #{db_name}"
      old_proxy = ActiveRecord::Base.db_charmer_connection_proxy
      ActiveRecord::Base.switch_connection_to(db_name, DbCharmer.migration_connections_should_exist?)
      yield
    ensure
      announce "Checking all database connections"
      ActiveRecord::Base.verify_active_connections!
      announce "Switching connection back to default"
      ActiveRecord::Base.switch_connection_to(old_proxy)
    end

    def db_magic(opts = {})
      raise ArgumentError, "No connection name - no magic!" unless opts[:connection]
      @@multi_db_name = opts[:connection]
      class << self
        alias_method_chain :migrate, :db_wrapper
      end
    end
  end
end

Version data entries

17 entries across 17 versions & 2 rubygems

Version	Path
db-charmer-1.5.4	lib/db_charmer/multi_db_migrations.rb
db-charmer-1.5.3	lib/db_charmer/multi_db_migrations.rb
db-charmer-1.5.2	lib/db_charmer/multi_db_migrations.rb
db-charmer-1.5.1	lib/db_charmer/multi_db_migrations.rb
db-charmer-1.5.0	lib/db_charmer/multi_db_migrations.rb
db-charmer-1.4.6	lib/db_charmer/multi_db_migrations.rb
db-charmer-1.4.5	lib/db_charmer/multi_db_migrations.rb
db-charmer-1.4.4	lib/db_charmer/multi_db_migrations.rb
db-charmer-1.4.3	lib/db_charmer/multi_db_migrations.rb
db-charmer-1.4.1	lib/db_charmer/multi_db_migrations.rb
db-charmer-1.4.0	lib/db_charmer/multi_db_migrations.rb
db-charmer-1.3.4	lib/db_charmer/multi_db_migrations.rb
db-charmer-1.3.3	lib/db_charmer/multi_db_migrations.rb
db-charmer-1.3.2	lib/db_charmer/multi_db_migrations.rb
db-charmer-1.3.1	lib/db_charmer/multi_db_migrations.rb
glebpom-db-charmer-1.4.3	lib/db_charmer/multi_db_migrations.rb
glebpom-db-charmer-1.4.2	lib/db_charmer/multi_db_migrations.rb