Rails日期比较;日期大于或等于几天前

A date in my database looks like this: 2012-07-23

我的数据库中的日期如下所示:2012-07-23

I am trying to see if the date is older than 7 days ago and less than 14 days ago or see if the date is greater than 14 days ago, but am having no luck..

我想看看日期是否超过7天前且不到14天前或者看看日期是否大于14天前,但我没有运气..

Here is my code:

这是我的代码:

def progress_report_status_check(date)
    progress_date = date.to_date
    seven_days = 7.days.ago.to_date
    fourteen_days = 14.days.ago.to_date

    if seven_days > (progress_date - 7.days.ago.to_date) or (progress_date - 14.days.ago.to_date) < fourteen_days
      "due"
    elsif (progress_date - 14.days.ago.to_date) > fourteen_days 
      "overdue"
    end 
  end

2 个解决方案

#1

def progress_report_status_check(progress_date) # Pass in a date
  if (progress_date < Date.now-14.days)
    "overdue"
  elsif (progress_date < Date.now-7.days) 
    "due"
  end 
end

or (less readable)

或(不太可读)

def progress_report_status_check(progress_date) # Pass in a date
  (progress_date < Date.now-14.days) ? "overdue" : ((progress_date < Date.now-7.days) ? "due" : "") : "" 
  end 
end

Depending on your usage you may want to create named scopes, say:

根据您的使用情况,您可能希望创建命名范围,例如:

scope :overdue where(:progress_date < Date.now-14.days)
scope :due where(:progress_date < Date.now-7.days)

Then your calling code can be something like

然后你的调用代码就像是

def progress_report_status_check(progress_date) # Pass in a date
  self.overdue? ? "overdue" : self.due? ? : "due" : ""
  end 
end

#2

The accepted answer uses an undefined method on the Date class. This is correct:

接受的答案在Date类上使用未定义的方法。这是对的:

def progress_report_status_check(progress_date) # Pass in a date
  if (progress_date < (Date.today-14.days))
    "overdue"
  elsif (progress_date < (Date.today-7.days)) 
    "due"
  end 
end