Question

我在视图中使用简单的ajax切换部分，允许用户将消息切换为已读和未读。当我切换时，我失败了。

MessagesController #show找不到没有ID的MessageCopy 应用程序跟踪：messages_controller.rb：“show”中的21（操作的第一行）

show.html.erb
  <%= render :partial => "read_unread_buttons" %>

# read_unread_buttons partial
  <div id="read_buttons" class="ajaxButtonText">
  <% if @message.read == true %>
    <%= link_to "Mark Unread",
    {:url => {:action => "read_unread_toggle", :id => @message.id},
     :update => {:success => "read_buttons", :failure => "Error"}}, 
    {:class=>"messageButton", :id => "markUnread"}, :remote => true %>
  <% else %>
    <%= link_to "Mark as Read",
    {:url => {:action => "read_unread_toggle", :id => @message.id},
     :update => {:success => "read_buttons", :failure => "Error"}},
     {:class=>"messageButton", :id=>"markUnread"}, :remote => true %>     
  <% end %>
  </div>

# messages controller
  def show
    @message = current_user.received_messages.find(params[:id])
    @message.read = true
    @message.save(:validate => false)
    render :layout => "messages"
  end

  def read_unread_toggle
    @message = current_user.received_messages.find(params[:id])
    @message.read = !@message.read
    @message.save(:validate => false)
    render :partial => "read_unread_buttons", :locals => {:message => @message, :id => params[:id] }, :layout => false
  end

Answer 1

首先，我建议使用生成的路径url方法生成href，您将在下面的示例中看到这一点。

其次，我假设您的routes.rb看起来像这样：

resources :messages do
  member do
    put 'read_unread_toggle'
  end
end

然后你的read_unread_buttons部分看起来应该是这样的

# read_unread_buttons partial
  <div id="read_buttons" class="ajaxButtonText">
  <% if @message.read == true %>
    <%= link_to "Mark Unread", read_unread_toggle_message_path(@message),
     { :update => { :success => "read_buttons", :failure => "Error" } }, 
     { :class => "messageButton", :id => "markUnread" }, { :method => :put, :remote => true } %>
  <% else %>
    <%= link_to "Mark as Read", read_unread_toggle_message_path(@message),
     { :update => { :success => "read_buttons", :failure => "Error" } },
     { :class => "messageButton", :id=>"markUnread" }, { :method => :put, :remote => true } %>     
  <% end %>
  </div>

具体来说，您忘记指定链接应使用的HTTP方法。

AJAX表单没有通过params [：id]

1 个答案: