Rails how to count columns that are not blank?
def sedomain
 country_codes = %w[ dk se com net org info ]
@domains = { }
 country_codes.each do |cc|
    @domains[cc.to_sym] = { :navn => ".#{cc}" }
  end
render :layout => 'page'
end

def sedomain
 country_codes = %w[ dk se com net org info ]
@domains = { }
 country_codes.each do |cc|
    @domains[cc.to_sym] = { :navn => ".#{cc}", :count => Domain.#{cc}.count }
  end
render :layout => 'page'
end

Domain.count(cc)

Domain.count(cc, :conditions => ["`#{cc}` IN NOT NULL OR `#{cc}` != ''"])