我有一个订单表,其中有一个状态列.
我试图得到每个状态的计数如下:
$pending = Order::where('status','=','pending')->count();
$active = Order::where('status','=','active')->count();
但这不是有效的,因为我必须为每种状态类型进行一次调用.
如何减少查询次数？
我正在使用AngularJS开发警报通知扩展.它从REST api获取警报并显示通知(webkitNotifications).我的笔记本电脑(我正在开发的地方)一切都很好但是当我筛选到我的桌面进行测试时,它会崩溃.我现在得到错误:
ReferenceError: webkitNotifications is not defined
at chrome-extension://dncdcpdlbnnhncggaenbpknljjbmdlpo/js/background.js:156:5
at chrome-extension://dncdcpdlbnnhncggaenbpknljjbmdlpo/js/angular.min.js:72:169
at E (chrome-extension://dncdcpdlbnnhncggaenbpknljjbmdlpo/js/angular.min.js:100:258)
at E (chrome-extension://dncdcpdlbnnhncggaenbpknljjbmdlpo/js/angular.min.js:100:258)
at E (chrome-extension://dncdcpdlbnnhncggaenbpknljjbmdlpo/js/angular.min.js:100:258)
at chrome-extension://dncdcpdlbnnhncggaenbpknljjbmdlpo/js/angular.min.js:102:5
at h.$eval (chrome-extension://dncdcpdlbnnhncggaenbpknljjbmdlpo/js/angular.min.js:112:179)
at h.$digest (chrome-extension://dncdcpdlbnnhncggaenbpknljjbmdlpo/js/angular.min.js:109:268)
at h.$apply (chrome-extension://dncdcpdlbnnhncggaenbpknljjbmdlpo/js/angular.min.js:113:7)
at g (chrome-extension://dncdcpdlbnnhncggaenbpknljjbmdlpo/js/angular.min.js:72:337) angular.min.js:92
笔记本电脑:v34.0.1847.116米
桌面:v35.0.1916.69 beta-m
我正在使用一个scrapper(在PHP中)并使用cURL来获取页面.该脚本可以在CLI和浏览器中运行.这是我第一次在CLI上使用PHP,我试图使屏幕漂亮,并且有一个很好的数据表示,如scrape统计信息显示.
我能够以我想要的方式生成输出,差不多.但是对于服务器发出的每个cURL请求,它还会输出这个额外的头信息,如下所示:
* About to connect() to imbd.com port 80 (#0)
* Trying 123.111.222.333... * connected
> GET /categories/something.html HTTP/1.1
User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:21.0) Gecko/20130401 Firefox/21.0
Host: imdb.com
Accept: */*
< HTTP/1.1 200 OK
< Server: nginx/1.4.1
< Date: Wed, 25 Dec 2013 02:17:06 GMT
< Content-Type: text/html
< Transfer-Encoding: chunked
< Connection: keep-alive
< Vary: Accept-Encoding
< X-Powered-By: PHP/5.3.17
< Set-Cookie: mobileType=0%something; expires=Wed, 01-Jan-2014 02:17:06 GMT; path=/; domain=.imdb.com
<
* Connection #0 to host imdb.com left intact …