Question

以下是我的人员控制器的索引方法

def index
    @people_without_pagination = Person
        .for_branch(session[:branch_id])
        .for_interests(params[:interest_search])
        .search_query(params[:search_term])
        .for_lead_sources(params[:lead_source_search])
        .for_labels(params[:label_list_search])
    @people = Person
        .for_branch(session[:branch_id])
        .for_interests(params[:interest_search])
        .search_query(params[:search_term])
        .for_lead_sources(params[:lead_source_search])
        .for_labels(params[:label_list_search])
        .page params[:page] 
    if(params[:my_contacts]=="true")
        @people.my_contacts(current_user.id)
        @people_without_pagination.my_contacts(current_user.id)
    end
    get_facets
    @organization = Organization.find(session[:organization_id])
    respond_to do |format|
        format.html 
        format.json {render partial: 'table.html', locals: { people: @people, organization: @organization, facets: @facets}}
        format.csv { send_data @people_without_pagination.to_csv}
    end
end

正如您所看到的，my_contacts范围仅用于param＆＃34; my_contacts＆＃34;设置为true。

但是，当我拆分范围时似乎永远不会应用它。当我将my_contacts范围与其余范围结合使用时，它可以完美地运行。代码在这里：

def index
    @people_without_pagination = Person
        .for_branch(session[:branch_id])
        .for_interests(params[:interest_search])
        .search_query(params[:search_term])
        .for_lead_sources(params[:lead_source_search])
        .for_labels(params[:label_list_search])
        .my_contacts(current_user.id)
    @people = Person
        .for_branch(session[:branch_id])
        .for_interests(params[:interest_search])
        .search_query(params[:search_term])
        .for_lead_sources(params[:lead_source_search])
        .for_labels(params[:label_list_search])
        .page(params[:page])
        .my_contacts(current_user.id)
    get_facets
    @organization = Organization.find(session[:organization_id])
    respond_to do |format|
        format.html 
        format.json {render partial: 'table.html', locals: { people: @people, organization: @organization, facets: @facets}}
        format.csv { send_data @people_without_pagination.to_csv}
    end
end

这不是一种结合范围的可接受方式吗？

Answer 1

每次调用关系构建器方法（where，joins等）或模型的范围时，都会创建一个全新的范围 - 它不会改变现有范围。所以

@people.my_contacts(current_user.id)

创建一个新范围但随后将其抛弃，保持@people不变。你应该做的

@people = @people.my_contacts(current_user.id)

这也意味着您的代码可以更简单：

@people_without_pagination = Person.
... #your scopes here
@people = @people_without_pagination.page(params[:page])

而不是重复该范围列表。

Rails - 组合范围

1 个答案: