優化前端代碼

Question

我對Ruby on Rails有一個看法，並且工作正常，但是我的問題是頁面加載之前需要花費一些時間。 這是一些代碼：

主標簽

<div class="tab-content">
                 <div class="tab-pane fade in active" id="tabconstituent">
                     <h3>Constituent Database</h3>
                     <ul class="nav nav-tabs">
                      <li class="active"><a href="#tabconstinbox" data-toggle="tab">Inbox</a></li>
                      <li><a href="#tabconstsent" data-toggle="tab">Sent</a></li>

                    </ul>

                  <div class="tab-content"> 
                      <div role="presentation" class="tab-pane fade in active" id="tabconstinbox">
                          <div class="container-fluid">
                              <br />
                              <div class="col-lg-6 pull-right">
                                <div class="input-group pull-right" id="searchDrafts">
                                  <input type="text" class="form-control"  placeholder="Search for">
                                  <span class="input-group-btn">
                                    <button class="btn btn-default"  type="button">
                                        <span class="glyphicon glyphicon-search" aria-hidden="true"></span>
                                    </button>
                                  </span>
                                </div><!-- /input-group -->

                                <div class="dropdown">
                                     <button class="btn btn-default dropdown-toggle pull-right" type="button" id="dropdownDrafts" data-toggle="dropdown" aria-haspopup="true" aria-expanded="true">
                                        Filter by
                                        <span class="caret"></span>
                                     </button>
                                  <ul class="dropdown-menu" aria-labelledby="dropdownMenu1">
                                    <li><a href="#">Sent to</a></li>
                                    <li><a href="#">Subject</a></li>
                                    <li><a href="#">Date</a></li>
                                  </ul>
                                </div>
                             </div><!-- /.col-lg-6 -->
                             <%= will_paginate @received_messages %>
                              <%= form_tag destroy_many_received_messages_path, method: :post do %>
                             <table class="table table-striped">
                                 <thead>
                                    <tr>
                                      <th><input type="checkbox" id="checkbox_all" /></th>
                                      <th data-field="sender" data-sortable="true">Sender</th>
                                      <th data-field="complaint" data-sortable="true">Complaint</th>
                                      <th data-field="location" data-sortable="true">Location</th>
                                      <th data-field="subject" data-sortable="true">Subject</th>
                                      <th data-field="department" data-sortable="true">Department</th>
                                      <th data-field="action_taken" data-sortable="true">Action Taken</th>
                                      <th data-field="status" data-sortable="true">Status</th>
                                      <th data-field="date" data-sortable="true">Date</th>
                                    </tr>
                                 </thead>
                                 <tbody>

                                    <% @received_messages.each do |received_message| %>
                                      <tr>
                                        <td><%= check_box_tag "message_ids[]", received_message.id%></td>
                                        <td><%= received_message.name%></td>
                                        <td><%= received_message.message %></td>
                                        <td><%= received_message.district %> <%= received_message.barangay %></td>
                                        <td><%= received_message.subject %></td>
                                        <td><% received_message.departments.uniq.each do |department|%>
                                              <%= department.name %> 
                                            <% end -%></td>
                                        <td><%= received_message.action_taken %></td>
                                        <td><%= received_message.status %></td>
                                        <td><%= received_message.created_at %></td>
                                      </tr>
                                    <% end %>
                                 </tbody>
                             </table>  

                             <%= submit_tag "Delete", id:"buttonConstInbox_Delete", :class =>"btn btn-primary"%>
                             <%= submit_tag "Update", id:"buttonConstInbox_Update", :class =>"btn btn-primary", remote: true, 'data-toggle' => "modal", 'data-target' => "#constSentModal" %>
                             <%= submit_tag "Attach", id:"buttonConstInbox_Attach", :class =>"btn btn-primary" %>
                             <% end %>

                         </div><!-- /.container-fluid -->
                      </div>
                      <div role="presentation" class="tab-pane fade" id="tabconstsent">
                          <div class="container-fluid">
                              <br />
                              <div class="col-lg-6 pull-right">
                                <div class="input-group pull-right" id="searchDrafts">
                                  <input type="text" class="form-control"  placeholder="Search for">
                                  <span class="input-group-btn">
                                    <button class="btn btn-default"  type="button">
                                        <span class="glyphicon glyphicon-search" aria-hidden="true"></span>
                                    </button>
                                  </span>
                                </div><!-- /input-group -->

                                <div class="dropdown">
                                     <button class="btn btn-default dropdown-toggle pull-right" type="button" id="dropdownDrafts" data-toggle="dropdown" aria-haspopup="true" aria-expanded="true">
                                        Filter by
                                        <span class="caret"></span>
                                     </button>
                                  <ul class="dropdown-menu" aria-labelledby="dropdownMenu1">
                                    <li><a href="#">Sent to</a></li>
                                    <li><a href="#">Subject</a></li>
                                    <li><a href="#">Date</a></li>
                                  </ul>
                                </div>
                             </div><!-- /.col-lg-6 -->
                             <%= will_paginate @send_messages %>
                             <%= form_tag destroy_many_received_messages_path, method: :post do %>
                             <table class="table table-striped">
                                 <thead>
                                    <tr>
                                      <th><input type="checkbox" id="checkbox_all" /></th>
                                      <th data-field="sent_to" data-sortable="true">Sent To</th>
                                      <th data-field="message" data-sortable="true">Message</th>
                                      <th data-field="status" data-sortable="true">Status</th>
                                      <th data-field="date" data-sortable="true">Date</th>
                                    </tr>
                                 </thead>

                                  <tbody>
                                    <% @send_messages.each do |send_message| %>
                                      <tr>
                                        <td><%= check_box_tag "message_ids[]", send_message.id%></td>
                                        <td><%= send_message.mobile_number%></td>
                                        <td><%= send_message.message %></td>
                                        <td><%= send_message.status %></td>
                                        <td><%= send_message.created_at %></td>
                                      </tr>
                                    <% end %>
                                 </tbody>

                             </table>    
                            <% end %>
                             <button type = "button" id="buttonConstSent_Delete" class = "btn btn-primary">Delete</button>
                         </div><!-- /.container-fluid -->
                      </div>
                  </div><!-- /.tab-content inbox/sent/trash-->

還有5個與此選項卡相同的選項卡，我感覺需要花一些時間來加載是因為每次加載該頁面時，它都會加載所有內容，而不是我當前位於的選項卡。 這成為一個大問題，尤其是當我想對數據進行分頁並且每個頁面都加載所有選項卡時。 有什么辦法可以更好地優化此代碼？ 謝謝。

Answer 1

最好的解決方案是為每個選項卡創建部分，並在單擊該選項卡時通過ajax加載這些部分。

首先，呈現主頁並添加remote: true到選項卡鏈接。 當您單擊選項卡鏈接時，將通過js渲染部分內容。

希望對您有幫助。

Answer 2

創建名稱為_tab.html.erb的局部文件並使用

remote: true

要使用實際上可以渲染JS代碼的ajax，您可以在其中執行實際工作流程中的任何操作。

如果您想調用您的部分，只需渲染它

render "tab.html.erb"