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问题描述
我如何可以改变下面,只选择在过去7天内创建的记录查询?
self.favorites.count
该功能位于我的用户
模式。
高清calculate_user_score
除非self.new_record?
self.score =(self.links.count * 5)+(self.favorites.count * 0.5)
结束
结束
解决方案
您可以添加其中,
-condition是这样的:
self.favorites.where(created_at> =',1.week.ago).Count之间
和您的 calculate_user_score
方法,你可能想这样做的链接
以及
高清calculate_user_score
除非new_record?
self.score =(links.where('created_at> =?',1.week.ago).Count之间* 5)+
(favorites.where('created_at> =?',1.week.ago).Count之间* 0.5)
结束
结束
How can I alter the query below to only select records created within the last 7 days?
self.favorites.count
This function is located in my User
model.
def calculate_user_score
unless self.new_record?
self.score = (self.links.count * 5) + (self.favorites.count * 0.5)
end
end
解决方案
You can add a where
-condition like this:
self.favorites.where('created_at >= ?', 1.week.ago).count
And for your calculate_user_score
method, you probably want to do that for links
as well:
def calculate_user_score
unless new_record?
self.score = (links.where('created_at >= ?', 1.week.ago).count * 5) +
(favorites.where('created_at >= ?', 1.week.ago).count * 0.5)
end
end
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