# File lib/merb_datamapper.rb, line 11
    def self.run
      Merb.logger.verbose! "Merb::Orms::DataMapper::Connect block."

      # check for the presence of database.yml
      if File.file?(Merb.dir_for(:config) / "database.yml")
        # if we have it, connect
        Merb::Orms::DataMapper.connect
      else
        # assume we'll be told at some point
        Merb.logger.info "No database.yml file found in #{Merb.dir_for(:config)}, assuming database connection(s) established in the environment file in #{Merb.dir_for(:config)}/environments"
      end

      # if we use a datamapper session store, require it.
      Merb.logger.verbose! "Checking if we need to use DataMapper sessions"
      if Merb::Config.session_stores.include?(:datamapper)
        Merb.logger.verbose! "Using DataMapper sessions"
        require File.dirname(__FILE__) / "merb" / "session" / "data_mapper_session"
      end

      # take advantage of the fact #id returns the key of the model, unless #id is a property
      Merb::Router.root_behavior = Merb::Router.root_behavior.identify(DataMapper::Resource => :id)

      Merb.logger.verbose! "Merb::Orms::DataMapper::Connect complete"
    end