I have two models in my Rails application, Users and Calls. The model associations are set as follows:
<>strong>user model
has_many :calls
<>唱名表决>
belongs_to :user
我正试图在申请中打上目前用户的电话数目。
Currently, I am using the following string:
<%= Call.count %>
哪些是行之有效的,但显然需要all<>>m>打电话,而不仅仅是现有用户发出的呼吁。
因此,我放弃了以下内容:
<%= current_user.Call.calls.count %>
我对如何做到这一点感到困惑。 我需要能够从任何地方打上计票,以便我能够根据过去30天等开始计算。
You don t really want to be putting database calls within views, you really want to put that into a controller. You d be looking for something like User.find(current_user.id).calls.count as this will then use the association of which you ve set up, or if you want to disregard the model relation you could do Call.where(:user_id => current_user.id).count
因此,将下文(正确行动)列入相关控制人员,同样也列入这一看法。
主计长
@count = Call. where (:user_id => current_user.id).count/code>
观点
<%=@count %>
这是:
current_user.calls.count
您可以与任何用户目标做同样的事情:
user = User.find(1)
user.calls.count
届时,你能够掌握更多条件,以完成基于日期的计算:
user.calls.where("calls.created_at > ?", 30.days.ago).count
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