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Rails类方法帮助-如何获取当前创建的列的总和
原标题:Rails class method help - How to take the sum of the columns that is created today

我想取今天有日期的所有专栏收入的总和。我正在尝试制作一个类方法。

如何获取所有列收入的总和,列数据中有今天的日期,并将其显示在视图中?

我的控制器:

class ReklamersController < ApplicationController
layout  reklamer 
def index

@reklamers = Reklamer.find(:all)

end
end

我的模型:

  def self.total_on(date)
      where("dato(date) = ?", date).sum(:earn)
    end

我的观点:

<td><b><%= @reklamer.total_on(dato) %></b></td>

Index: Error: undefined local variable or method `dato 

顺致敬意,

铁轨初学者

最佳回答

该类方法应该在您的模型中,而不是在控制器中。

问题回答

暂无回答




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