Question

我在我的应用中实施了聊天系统 在提交新评论后，它会部分刷新评论列表因此弹出新添加的注释而不重新加载整个页面。

它工作正常，但问题是，提交后不会使输入字段为空（初始化）:(

如果成功提交，我怎能把它弄空？ 5秒自动刷新将是另一个阻止的问题。所以我也要关心它。

如果可能的话，当用户尝试在10秒内提交评论时，我想弹出“你不能发送垃圾邮件”的闪光警告。
我们假设我正试图从用户#show page

提交评论

视图/用户/ show.html.erb

<%= javascript_tag do %>
    jQuery(document).ready(function () {
        refreshPartial();
        setInterval(refreshPartial, 5000)
    });


    function refreshPartial() {
      $.ajax({
        url: "<%= show_user_path(@user) %>/refresh_part",
        type: "GET",
        dataType: "script",
      });
    }
<% end %>
......
<span id="chat">
<%= render 'users/comment' %>
</span>
<%= render 'users/comment_input' %>

视图/用户/ _comment.html.erb

<table>
  <tr>
    <th>ID</th>
    <th>PIC</th>
    <th>Body</th>
    <th>Subject</th>
    <th>Posted by</th>
    <th>Delete</th>
  </tr>

<% @comments.each do |comment| %>
  <tr id="<%= dom_id(comment) %>">
    <td><%= comment.id %></td>
    <td>
            <% if comment.comment_icon? %>
                <ul class="thumbnails">
                <%= image_tag(comment.comment_icon.url(:thumb),:height => 100, :width => 100, :style => 'border:3px double #545565;' ) %>
                </ul>
            <% end %>

    </td>
    <td><%= comment.body %></td>
    <td><%= comment.subject %></td>
    <td><%= comment.user.user_profile.nickname if comment.user.user_profile %></td>
    <td>
    <%= button_to 'destroy', polymorphic_path([@user, comment]), :data => {:confirm => 'Are you sure?'}, :method => :delete, :disable_with => 'deleting...', :remote => true, :class => 'btn btn-danger' if current_user && current_user.id == comment.user_id %>
    </td>
    </tr>
<% end %>
</table>

<%= paginate @comments, :window => 4, :outer_window => 5, :left => 2, :right => 2 %>

views / users / _comment_input.html.erb ＆lt; =这是输入表单!!!!!

<%=form_for(([@user, @comment]), :remote => true) do |f| %>
    <div class="field">
      <%= f.label :body %><br />
      <%= f.text_field :body %>
    </div>
    <div class="field">
    <%= f.file_field :comment_icon %>
    </div>
  <div class="actions">
    <%= f.submit %>
  </div>

<% end %>

comments_controller.rb

def create
  commentable = @community_topic||@community||@user
  @comments = commentable.comment_threads.order("updated_at DESC").page(params[:page]).per(5)
  @comment = Comment.build_from(commentable, current_user.try(:id), params[:comment][:body]) 
  @comment.comment_icon = params[:comment][:comment_icon] 


  if @user
    @following_users = @user.all_following(order: 'updated_at DESC') 
    @followed_users = @user.followers 
    @communities_user = @user.get_up_voted(Community).order("updated_at ASC").page(params[:page]).per(5)
  elsif @community      

  end

  last_comment = Comment.where(:user_id => current_user.id).order("updated_at").last

  if last_comment && (Time.now - last_comment.updated_at) <= 10.second  
    flash[:notice] = "You cannot spam!" 
    render :template => template_for(commentable)
  elsif @comment.save 
    #if  @community_topic.empty?
        @comments = commentable.comment_threads.order("updated_at DESC").page(params[:page]).per(5)
        @comment = commentable.comment_threads.build

        respond_to do |format|
            format.html { redirect_to [@community, commentable].uniq, :notice => "comment added!"  }
            format.js do
                if @community.present?
                  render 'communities/refresh_part' 
                elsif @community_topic.present?
                  render 'community_topics/refresh_part'
                elsif @user.present?
                  render 'users/refresh_part'
                end
            end
        end 
  else
    render :template => template_for(commentable)
  end
end

视图/用户/ refresh_part.js.erb

$('#chat').html("<%= j(render(:partial => 'users/comment')) %>")

Answer 1

嗯，我认为这是你想要清空的“身体”输入所以基本上只需要像这样添加一个id：

<%= f.text_field :body, :id => "body_input" %>

在 views / users / refresh_part.js.erb 中，您可以添加以下内容：

$('#body_input').val('');

这只有在成功提交时才有效，因为从我看到的情况看，只有在保存评论时才会呈现模板。

如何在ajax提交后使输入字段为空？

1 个答案: