显示在Rails中的“total_entries”附近

Question

使用RoR 2.3.8

通常我们有以下代码：

Showing <%= @shops.total_entries %> shops in Canada.

产生结果：

Showing 46 shops in Canada

如果我希望它显示向下舍入值，该怎么办：

Showing 40+ shops in Canada

对于＆lt; 10个总条目，它应该显示确切的数字。

三江源。

Answer 1

def round(total)
  total > 10 && total%10 != 0 ? [total/10*10,"+"].join : total.to_s
end

Showing <%= round(@shops.total_entries) %> shops in Canada.

当然最好将其包装为Model方法

class Shop < ActiveRecord::Base
  def self.round
    total = count
    total > 10 && total%10 != 0 ? [total/10*10,"+"].join : total.to_s
    # instead of using `[total/10*10,"+"].join` you can use `(total/10*10).to_s+"+"`
  end
end

@shops = Shop.were(:region => "Canada")

Showing <%= @shops.round %> shops in Canada.