Rails Questions

questions

>> User.first.email





>> User.all.collect{|u| u.status}.uniq.size





>> User.update_all("status = 'Hired'", "id = #{params[:id]}")





>> @user = User.find(*params[:ids]) and @user.name or "User not found"





>> User.where(:status => 'Hired').first == User.find{|u| u.status = "Hired"}





>> User.active.collect(&:address).compact.map(&:country).inject{|m, c| c.code}