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Paperclip::Errors::MissingRequiredValidatorError with Rails 4
... Paperclip will also throw "Missing Required Validator Error" in case of PDF file upload. The workaround for that is: First install the "GhostScript" and then add "application/pdf" to content-type.
– HackerKarma
Mar 10 '14 at 15:41
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Find running median from a stream of integers
....biz/2013/09/16/… and the paper that it refers to is here: arxiv.org/pdf/1407.1121v1.pdf This is called "Frugal Streaming"
– Paul Chernoch
Aug 24 '15 at 16:23
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TortoiseSVN允许修改日志的方法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...过服务端的hooks目录下的批处理使得SVN日志可修改。Windows版：服务器端svn仓库hooks目录下加...SVN默认是不允许修改日志的，否则报错：
可以通过服务端的hooks目录下的批处理使得SVN日志可修改。
Windows版：
服务器端svn仓库hoo...
Discuz!x3.2微信登陆升级教程（接口错误(ERR05) 微社区域名已更换，请确保...
...05)微社区域名已更换，请确保接口已升级从即日起，打通版微社区域名已经由原来的 wsq.discuz.qq.com 切换为 wsq.discuz.com...接口错误(ERR05)
微社区域名已更换，请确保接口已升级
从即日起，打通版微社区域名已经由原来的 wsq....
How to encode the filename parameter of Content-Disposition header in HTTP?
... a comma (,) in the filename, e.g. Content-Disposition: filename="foo, bar.pdf". The result is that firefox downloads the file correctly but keeps the .part extension (e.g foo,bar.pdf-1.part). Then, of course the file won't open correctly because the application is not associated with .part. Other A...
Ubuntu下CodeBlock开发环境配置 - C/C++ - 清泛网 - 专注C/C++及内核技术
...SVN、代码高亮、格式化、国际化（软件界面语言可定制为中文）、强大... Code::Blocks是一款功能强悍的C、C++ IDE，工具小巧灵活、跨平台、支持SVN、代码高亮、格式化、国际化（软件界面语言可定制为中文）、强大的调试环境。
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Managing CSS Explosion
...l 4 my answer has included the advice to download and read Natalie Downe's PDF CSS Systems. (The PDF includes tons of notes not in the slides, so read the PDF!). Take note of her suggestions for organization.
EDIT (2014/02/05) four years later, I'd say:
Use a CSS pre-processor and manage your fil...
地图组件做App到底怎么选？我踩完6个坑，帮你总结了这份横评 - App应用开发...
...到Screen，设置宽高充满，保存，连手机，地图就出来了。中文网版本默认接的是高德地图，国内直接可用，不需要翻墙，不需要配API Key。这一步体验我给满分。
方案B也不差。 在方案A的基础上，把地图类型改成"自定义&quo...
Why is the String class declared final in Java?
...aoticjava.com/posts/gc-tips-and-memory-leaks/
http://java.sun.com/j2se/1.5/pdf/jdk50_ts_guide.pdf
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Finding all cycles in a directed graph
...owing link:
http://www.cs.tufts.edu/comp/150GA/homeworks/hw1/Johnson%2075.PDF
A java implementation can be found in:
http://normalisiert.de/code/java/elementaryCycles.zip
A Mathematica demonstration of Johnson's algorithm can be found here, implementation can be downloaded from the right ("Downl...