[英]Rails: Detecting user agent works in development but not production?
I am trying to detect Blackberry user agents in my app, which works fine in my development version. 我试图在我的应用程序中检测Blackberry用户代理,这在我的开发版本中工作正常。 But nothing happens when I redeploy the app in production. 但是,当我在生产中重新部署应用程序时,没有任何反应。
application_helper.rb application_helper.rb
def blackberry_user_agent?
request.env["HTTP_USER_AGENT"] && request.env["HTTP_USER_AGENT"][/(Blackberry)/]
end
application.html.erb application.html.erb
<% if blackberry_user_agent? -%>
<div class="message">
<p>Using a Blackberry? <a href="http://mobile.site.ca/">Use the mobile optimized version</a>.</p>
</div>
I've tried clearing the cache using rake tmp:cache:clear and restarted mongrel a few times. 我已经尝试使用rake tmp:cache清除缓存:清除并重启mongrel几次。 Apparently the HTTP_USER_AGENT is coming back nil in production. 显然,HTTP_USER_AGENT在生产中回归为零。 I am using Nginx with a mongrel cluster. 我正在使用Nginx和一个mongrel集群。
尝试:
request.user_agent
Are you using Apache or nginx in front of your mongrel(s)? 你在你的杂种前面使用Apache或nginx吗?
Are you logging the user_agent? 你是否记录了user_agent? This is from my nginx.conf: 这是我的nginx.conf:
log_format main '$remote_addr - $remote_user [$time_local] $request '
'"$status" $body_bytes_sent "$http_referer" '
'"$http_user_agent" "http_x_forwarded_for"';
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