如何爲布爾屬性創建方法？

Question

如何在方法中將布爾值設置爲false？

對於我BusinessStore搜索我試圖讓3個不同的單選按鈕從網上商店，離線商店和所有分店選擇。

這是我BusinessStore模式和3種方法我試圖做出單選按鈕：

attr_accessible :online_store # boolean attribute 

def online_search 
    business_store.online_store = true 
end 

def offline_search 
    business_store.online_store = false 
end 

def all_search 
    # Give all results whether true or false 
end 

如何完成這一點，需要加以糾正呢？

---

UPDATE

Product.rb 

def search_type=(boolean) 
    case (boolean) 
    when 'online' 
     @online_search = true 
     @offline_search = false 
    when 'offline' 
     @online_search = false 
     @offline_search = true 
    when 'all' 
     @online_search = true 
     @offline_search = true 
    else 
    @online_search = true 
    @offline_search = true 
    end 
end 

search/index.html.erb 

<%= label_tag :search_type, "All" %> 
    <%= radio_button_tag :search_type, "all" %> 
<%= label_tag :search_type, "Online" %> 
    <%= radio_button_tag :search_type, "online" %> 
<%= label_tag :search_type, "Offline" %> 
    <%= radio_button_tag :search_type, "offline" %> 

Answer 1

採取不同的辦法來代替，而只是做兩個複選框：

SearchController.rb

def index 
    @search = Product.search do 
    q.with(:online_search, params[:online_search] == 1) if params[:online_search].nil? 
    q.with(:offline_search, params[:offline_search] == 0) if params[:offline_search].nil? 
    end 
    @products = @search.results 
end 

搜索/ index.html.erb

<%= label_tag :online_search, 'Online' %> 
    <%= check_box_tag :online_search, params[:online_search], true %> 
    <%= label_tag :offline_search, 'Offline' %> 
    <%= check_box_tag :offline_search, params[:offline_search], true %> 

我將複選框設置爲已開始檢查兩者，以便在線和離線搜索，除非其中一個未選中。這就是爲什麼在搜索控制器中，我搜索參數是否爲兩種方法的參數。

Answer 2

你可能有一個更容易的時間進行解譯選擇，而不必直接映射存取器的包裝方法：

def search_method=(value) 
    case (value) 
    when 'online' 
    @online_search = true 
    @offline_search = false 
    when 'offline' 
    @online_search = false 
    @offline_search = true 
    else 
    @online_search = true 
    @offline_search = true 
    end 
end 

def online_search? 
    @online_search 
end 

def offline_search? 
    @offline_search 
end 

然後你在online,offline和all之間進行選擇，或者選擇其他默認值河

編輯：修正基於要點：

def index 
    @search = Product.search do 
    fulltext params[:search] 
    paginate(:per_page => 10, :page => params[:page]) 
    order_by(:purchase_date, :desc) 
    order_by(:price,:asc) 

    includes(:business_store) 
    where(:business_store => { :online_store => true }) 
    end 
    @products = @search.results 
end