2011-12-18 75 views
0

好吧,我的大腦從看着這個炸!任何人都可以看到有什麼不對? 一種可能性是@profile對象沒有在部分加載時被填充,儘管如果Ajax工作正常,我實際上不需要在html.erb頁面上呈現部分!導軌 - 500從JQuery的阿賈克斯POST(也GET)服務器

這裏,我們去:

html.erb:

<div id="stars"> 
<%= render :partial => 'stars' %> 
</div> 

星部分:

<p> 
    <b><strong>Stars! </strong></b> 
    <%= @profile.stars %> 
    <input type="submit" name="one" id="one" value="+1" message="<%= @profile.id %>"> 
</p> 

的javascript:

$(function() { 
    $("#one").click(function() { 
$.ajax({ 
    type: "POST", 
    url: "/rate", 
    dataType: "html", 
    data: "prof="+this.getAttribute("message"), 
    success: function(data){ 
     $("#stars").html(data); 
     } 
    }); 
    }) 
}); 

和控制器:

def rate 
@rate_this_profile = Profile.find_by_id(params[:prof]) 
if @rate_this_profile 
    @rate_this_profile.stars += 1 

    respond_to do |format|   --Line 177 
    if @rate_this_profile.save 

    render :partial => "stars"  --Line 180 

    flash[:success] = "Rated!" 
    else 
    flash[:success] = "Failed" 
    end 
end 
end 

日誌:

Started GET "/assets/application.js?body=1" for 127.0.0.1 at 2011-12-18 22:01:51 +0000 
Served asset /application.js - 304 Not Modified (3ms) 


Started POST "/rate" for 127.0.0.1 at 2011-12-18 22:13:23 +0000 
    Processing by ProfilesController#rate as HTML 
    Parameters: {"prof"=>"3"} 
    ←[1m←[35mProfile Load (0.0ms)←[0m SELECT "profiles".* FROM "profiles" WHERE "profiles"."id" = 3 LIMIT 1 
    ←[1m←[36m (1.0ms)←[0m ←[1mUPDATE "profiles" SET "stars" = 21, "updated_at" = '2011-12-18 22:13:23.493276' WHERE "profiles"."id" = 3←[0m 
Rendered profiles/_stars.html.erb (7.0ms) 
Completed 500 Internal Server Error in 93ms 

ActionView::Template::Error (undefined method `stars' for nil:NilClass): 
1: <p> 

2: <b><strong>Stars! </strong></b> 

3:   <%= @profile.stars %> 

4:   <input type="submit" name="one" id="one" value="+1" message="<%= @profile.id %>"> 

5: </p> 
    app/views/profiles/_stars.html.erb:3:in  `_app_views_profiles__stars_html_erb__1034491404_54471564' 
    app/controllers/profiles_controller.rb:180:in `block in rate' 
    app/controllers/profiles_controller.rb:177:in `rate' 

Rendered c:/Ruby/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/actionpack-3.1.1/lib/action_dispatch/middleware/templates/rescues/_trace.erb (1.0ms) 
Rendered c:/Ruby/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/actionpack-3.1.1/lib/action_dispatch/middleware/templates/rescues/_request_and_response.erb (1.0ms) 
Rendered c:/Ruby/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/actionpack-3.1.1/lib/action_dispatch/middleware/templates/rescues/template_error.erb within rescues/layout (37.0ms) 
+0

是什麼日誌說? – 2011-12-18 22:12:22

+0

您可以定義'@ rate_this_profile'而不是'@profile',因此'@ profile'在首次使用時自動創建,並以'nil'開始。所以有你的bug,我正在投票結束「太本地化」。 – 2011-12-18 22:40:06

+0

@ muistooshort我只顯示了部分文件。我認爲相關的部分。如果您想了解更多信息,請詢問。該配置文件不爲零的其餘部分的HTML。只有部分它是零。 – spuriosity 2011-12-18 22:51:23

回答

1

你的控制器使他偏星,無論格式。如果您在費率方法中設置@profile,它是否解決了問題?

另一個,也許更優雅,選項是改變你的渲染到這一點:

render :partial => 'stars', :locals => { :profile => whatever_you_want_here } 

,改變你的部分使用「輪廓」,而不是「@profile」