How to update all records on the future but only evaluate 'campaign_id' to check if record already exists?

controller

def campaign_query
    @campaign_query = Shoot.all
  end
  def campaign_trial
    @campaign_trial = campaign_query.order("id ASC")
  end
  def needed_campaign_records
    @needed_campaign_records ||= campaign_trial.map
  end

  def campaigns_fetch
    # update/create
      needed_campaign_records.each do |record|
      campaigns = Campaign.find_or_create_by(:campaign_id => record['campaign_id'], campaign_name: record['campaign_name'],subject: record['subject'], sent: record['sent'],scheduled_date: record['scheduled_date'],tags: record['tags'],delivered: record['delivered'],unique_views: record['unique_views'],viewed: record['viewed'],clicked: record['clicked'],clicker: record['clicker'],hard_bounce: record['hard_bounce'],soft_bounce: record['soft_bounce'],unsub: record['unsub'],mirror_click: record['mirror_click'],complaints: record['complaints'])
      # updated_campaigns = campaigns(campaign_id: record['campaign_id'],campaign_name: record['campaign_name'],subject: record['subject'], sent: record['sent'],scheduled_date: record['scheduled_date'],tags: record['tags'],delivered: record['delivered'],unique_views: record['unique_views'],viewed: record['viewed'],clicked: record['clicked'],clicker: record['clicker'],hard_bounce: record['hard_bounce'],soft_bounce: record['soft_bounce'],unsub: record['unsub'],mirror_click: record['mirror_click'],complaints: record['complaints'])
      unless campaigns.save(record)
          # the data was invalid, so the shoot wasn't saved, do something about that here
      end
    end
    flash[:notice] = "Shoots updated successfully."
    redirect_to(:controller => 'monet', :action => 'refresh')
  end