陣列紅寶石在軌道上

Question

當在頁面的左側執行商店搜索和分頁結果（每頁10個）時，我需要顯示在所有商店中工作的員工列表（無重複項）當前顯示。

在我有以下的，但它不覺得自己是最有效的視圖，它顯示了重複的員工

- @shops.each do |shop| 
- shop.employees.each do |employee| 
%li = link_to "#{employee.name}", employee_path(employee) 

Answer 1

@shops.map(&:employees).flatten.uniq.each do |employee| 
    %li = link_to "#{employee.name}", employee_path(employee) 
end

Answer 2

uniq？

- @shops.each do |shop| 
- shop.employees.uniq.each do |employee| 
%li = link_to "#{employee.name}", employee_path(employee) 

Answer 3

這種類型的查詢應在DB，而不是在內存中完成。

class Shop 
    has_many :employees 
end 

class Employee 
    belongs_to :shop 
end 

檢索的商店給定集合員工在你的控制器：

@employees = Employee.all_by_shop_id(@shops, :order => :name) 

在你看來

現在：

-@employees.each do |employee| 
    %li = link_to "#{employee.name}", employee_path(employee)