阵列红宝石在轨道上

Question

当在页面的左侧执行商店搜索和分页结果（每页10个）时，我需要显示在所有商店中工作的员工列表（无重复项）当前显示。

在我有以下的，但它不觉得自己是最有效的视图，它显示了重复的员工

- @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

这种类型的查询应在DB，而不是在内存中完成。

class Shop 
    has_many :employees 
end 

class Employee 
    belongs_to :shop 
end 

检索的商店给定集合员工在你的控制器：

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

在你看来

现在：

[email protected] do |employee| 
    %li = link_to "#{employee.name}", employee_path(employee)