<%if EducodeSales::FollowUp.where(business_id: @follow_up.business.id,clazz_id: EducodeSales::Common.find_by(name: @o_name).id).count >= 2 %>
<%= select_tag "clazz_id", options_for_select([[@o_name,EducodeSales::Common.find_by(name: @o_name).id]]),:disabled => true, class: 'required' %>
<%else %>
<%= select_tag "clazz_id", options_for_select(@clazz, @follow_up&.clazz_id), class: 'required' %>
<%end %>
<%= select_tag "stage_id", options_for_select(@stages, @follow_up.stage_id), class: 'required' %>