Question

我正在尝试使用远程操作显示列表框，只是搜索参数，但是无效。

Clients_controller.rb

def new
  @client.new
end

def search_city 
  @cities = City.where('id= ?',params[:city_id])
  respond_to do |format|
    format.js 
  end
end

search_city.js.erb

$("#test").html("<%= escape_javascript(render(:partial => "city_results"))%>");

模型

Client.rb
  belongs_to :city

City.rb
  belongs_to :state
  has_many :clients

State.rb
  has_many :cities

的routes.rb

resources :clients do
   match 'search_city',:via =>[:get], :on => :collection
end

_form.erb

<%= link_to "Get list cities", {:action => "search_city"}, :remote => true, :class => "button-link" %>

<div id = "test">Here this text will be replaced</div>

_city_results.erb

<%= select_tag "example",options_for_select(@cities.collect { |p| [p.name,p.id] }) %>

这里完整的日志：

Started GET "/clients/new" for 127.0.0.1 at 2016-04-14 17:31:03 -0500
 Processing by ClientsController#new as HTML
 Completed 200 OK in 133ms (Views: 107.4ms | ActiveRecord: 1.0ms)
 Rendered client_management/clients/new.html.erb within layouts/application (21.6ms)

Started GET "/clients/search_city?city_id=1" for 127.0.0.1 at 2016-04-14 16:43:55 -0500
Processing by ClientManagement::ClientsController#search_city as JS
 Parameters: {"city_id"=>"1"}
 Province Load (0.2ms)  SELECT `states`.* FROM `states` WHERE `states`.`city_id` = 1
 Rendered clients/partials/_city_results.erb (1.9ms)
 Rendered clients/search_city.js.erb (2.9ms)
 Completed 200 OK in 7ms (Views: 4.7ms | ActiveRecord: 0.4ms)

INFO

SELECT `states`.* FROM `states` WHERE `states`.`city_id` = 1
RESULT: 1 (exist value)

问题：

未显示带选项的select标记。当我检查params是否被发送时，一切正常，但在视图中没有被替换。

需要安装宝石吗？

只使用简单的文本而不需要rails代码。

我试过了：

$('#province').html("<%= escape_javascript( render :partial => 'clients/partials/city_results' ) %>");
$('#province').show();

Answer 1

for d in range(0, len_string):
    new_array.extend(d)

链接到远程问题无法正常工作

1 个答案: