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  • What does N years of experience with a language really mean?

    - by marcgg
    I've been looking at jobs descriptions since I'm graduating soon and looking for a job and what's always coming back - I'm not teaching you anything - is the "N years of experience in this language". It has been discussed in this question that if you work professionally with let's say Ruby for 2 years, but during these two years you also did some C# and PHP and were actually coding in Ruby 50% of the time. Do you say you have 1 year of experience in Ruby? 2 years? Another issue that hasn't been reviewed in the other post is for "non-professional experience". I'll give you a personal example: I've been working with Ruby on Rails since 2004 while at school. I did a lot of personal projects and school projects using this technology. I also used Rails in 2 6-month internships. Do I have 5 years of Rails experience (2004-now)? Do I have 1 year(2 internships)? Do I have nothing? I feel like I don't deserve the credit for 5 years, because the first years I wasn't working a lot with rails, but since last year I launched some websites and invested myself a lot in this technology and just saying 1 year doesn't really reflect how much I know the technology... Another example: I Learned C++ at school and did 1 big project with it (2-3 month of work and a semester of classes). I never used it in a company but I'd be able to be productive fairly quickly if I had to work on a C++ project and I have a good grasp of the concepts. Do I have no experience? 3 months? 6 months? ... something else? What I'm really trying to do is to find a way to present my skill set in a way that is compliant to what recruiters expect. I also don't want to end up at an interview that would go something like this... Recruiter (finding out the horrible truth): Oh but you said that you had 2 years of experience with this when you have none! / slaps me in the face / Me (in pain): Oh! The irony! Recruiter (yelling): Get out of my office / calls security, punches me in the throat /

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  • Supplying a callback to Jeditable

    - by pjmorse
    Summary: When I try supplying a onsubmit or onreset callback to Jeditable, I get Object [function] has no method 'apply' errors. How I got here: I've been working on a rails plugin to supply Jeditable and jWYSIWYG for in-place WYSIWYG editing. Development is driven by a Rails project I'm working on which asks for specific functions. One of the options I added was the ability to trigger Jeditable's edit mode using a button instead of clicking on the editable text itself, following the pattern suggested in this answer. The next step, though, is to hide the button while in edit mode, and reveal it again when leaving edit mode. The hide is easy enough; I just added a line to the triggering function which sends .toggle() to the button. Reveal is trickier. I figure I need to .toggle() again on submit or cancel, and helpfully, Jeditable offers onsubmit and onreset callbacks. However, when I try using those callbacks, I get this Object [something] has no method 'apply' errors. What I'm trying: Because this is in the context of a Rails helper, the actual mechanics are a little more involved than this, but the upshot is that I'm trying to follow this pattern, handing Jeditable this in the args: "onsubmit":"showTrigger", and then including this script: function showTrigger(settings, original) { $(".edit_trigger[id='element_id']").toggle(); } However, on submitting changes or canceling an edit, I get the error Object showTrigger has no method 'apply' ...as described above. I also tried sending in a function directly as the "onsubmit" argument (i.e. "onsubmit": "function(settings, original){$(\".edit_trigger[id='element_id']\").toggle();}" and then I just get Object function(settings, original){$(\".edit_trigger[id='element_id']\").toggle();} has no method 'apply' instead. There must be something wrong with how I'm handing in this callback. Any ideas? ETA: This answer suggests to me that somehow I'm providing a string to Jeditable when it expects a function instead. However, because I'm working within the context of a Rails helper, I'm not at all sure how to fix that - the "showTrigger" bit is set as a Ruby variable in the helper, and although window.showTrigger() is defined when the window is loaded, I don't know how to designate that function within a Ruby variable such that it will be recognized as a function at page load time.

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  • Hidden features of Ruby

    - by squadette
    Continuing the "Hidden features of ..." meme, let's share the lesser-known but useful features of Ruby programming language. Try to limit this discussion with core Ruby, without any Ruby on Rails stuff. See also: Hidden features of C# Hidden features of Java Hidden features of JavaScript Hidden features of Ruby on Rails (Please, just one hidden feature per answer.) Thank you

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  • How do I change the environment in CakePHP?

    - by ryudice
    I just started using CakePHP for a small project. I have rails experience, and I can see Cake and Rails are really similar, but I can't seem to find where to change the environment in which you are working. How can I do so? I'm currently working with test because I want to see all those debugging messages, but I want to see how the final design looks and I need to get rid of those messages. How can I change the environment to production?

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  • What do you use Sinatra for?

    - by Victor P
    Im confused about Sinatra (the ruby framework). Is it a lightweight Rails replacement or you can have them running side by side? Can you do a web application (as in Rails)? For example a twitter clone?

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  • Should you use LAMP or Spring Framework ?

    - by gazzzz
    Recently, I've been exploring Java space, and came across Spring Framework. Is this a web app framework like CodeIgniter or Rails ? If so, is Springs used for developing enterprise web applications that runs on Java EE technology ? I am curious, why Spring is getting lot of attention. Isn't it a lot cheaper to simply use LAMP + CI or Rails to develop web application ? Can Spring be used to develop desktop applications ?

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  • Javascript: regular expression

    - by Dmitry Nesteruk
    I need to replace a substring from some string. I've already created corrected code for doing it. But I amn't sure is it best way. Please, see code below: var str = 'test ruby,ruby on rails,ruby,' var substr = 'ruby'; var reg = new RegExp(',' + substr + ',|^' + substr + ',', 'gi'); str.replace(reg, ','); //returns "test ruby,ruby on rails,"

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  • Apache server doesn't create directory or file under www-data user [duplicate]

    - by Harkonnen
    This question already has an answer here: What permissions should my website files/folders have on a Linux webserver? 4 answers very newbie to Apache here I installed Apache 2.4 on my Arch server where I installed newznab (a newsgroups indexer). I have noticed that all files newznab needs to create are created under my login user, and not apache default user (www-data). I read here that it's bad security practice to allow www-data to write files. I agree. But as an apache newbie, I would like to know where (in the httpd.conf I suppose ?) the user allowed to write files can be configured, because I want another account to be allowed to write files instead of my main account.

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  • Moving a file using PuTTY

    - by Paul Trotter
    I am newbie struggling to move a file on a Linux VPS using PuTTY. I can log in with a user in PuTTY at this point I can navigate to see the file I wish to move (~/servers/apache-solr-3.6.2/example/webapps/solr.war). By using cd .. a couple of times from the directory I begin at when I first log in to PuTTY I can then navigate to the location I wish to move the file to: usr/local/jakarta/apache-tomcat-5.5.36/webapps/ I know that I need to use cp to copy the file and have tried variations on: cp ~/servers/apache-solr-3.6.2/example/webapps/solr.war usr/local/jakarta/apache-tomcat-5.5.36/webapps However each time I get 'No such file or directory' I have tried excluding the ~/ and the start and I have tried specifying solr.war at the end of the command. Please excuse the newbie question, but I would really appreciate some advice on what I am doing wrong here.

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  • Back up Linux environment

    - by joesavage
    I'm currently in the process of installing a bunch of stuff I need and getting setup my Linode that I recently purchased. Being a Linux newbie, I'm doing pretty well - but one small mistake can screw everything up for me. I've currently got apache2 and some other things successfully installed and setup how I want them, and DO NOT want this to be ruined by some newbie mistake. What is the easiest way to backup the actual environment itself so that I can restore the backed up environment (with apache2 and things fully working) if I mess up?

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  • Unable to install Win XP nor Win 7 after installing Ubuntu 11.1

    - by Pablo C. Garcia
    I'll try to make this scenario as clear as possible. Laptop Specs HP dv6-2189la: 500 HDD 4GB Ram Intel i7 Personal Specs - Linux newbie running for the first time. Quite confused :( I had Windows 7 x64, decided to start fresh new so I planned on formatting. Since I use it for work and didn't require it for another week, I didn't rush into installing Win 7 immediately as I wanted to try Ubuntu for quite a while. 1) Downloaded Ubuntu 11.1 2) Burned ISO to CD 3) Installed Ubuntu using the full HDD of 500GB erasing Win7 4) Ubuntu ran awesome (especially for me being a Linux Newbie from scratch) I used Ubuntu for a while, but now I need to get back to work with Win 7. Tried running the installation CD for Win 7 and it just skips to Ubuntu without loading. Checked BIOS, tried other discs, even tried the disc on another computer and it works. Since that didn't work, I tried running Win XP. This CD does load, it starts loading files, drives, kernel, blah blah and before even getting to install it Blue screens with error 0x0000007b. I already used Gparted and created up to 250 GB space for Windows. Formatted to NTFS. I really don´t know what do now. I've tried almost everything I know within my knowledge. I could say I'm an advanced PC user, but I bumped into the Linux wall starting from scratch. All suggestions will be appreciated. Thanks!

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  • ubuntu 11.10 foreman error

    - by user1060759
    Like this post I am also trying to complete this heroku tutorial I have installed and used everything (node.js, npm, express) successfully until I got to Foreman. I installed Foreman by first installing Ruby: alex@ubuntu:~$ sudo apt-get install ruby1.9.1 then installing Foreman. I am a newbie to Unix so I "sudo" perhaps unnecessarily here, but I got confirmation in the terminal that it had installed but also some errors: alex@ubuntu:~/NodeHelloWorld$ sudo gem install foreman Invalid gemspec in [/var/lib/gems/1.8/specifications/foreman-0.26.1.gemspec]: invalid date format in specification: "2011-11-10 00:00:00.000000000Z" Invalid gemspec in [/var/lib/gems/1.8/specifications/term-ansicolor-1.0.7.gemspec]: invalid date format in specification: "2011-10-13 00:00:00.000000000Z" Invalid gemspec in [/var/lib/gems/1.8/specifications/foreman-0.26.1.gemspec]: invalid date format in specification: "2011-11-10 00:00:00.000000000Z" Invalid gemspec in [/var/lib/gems/1.8/specifications/term-ansicolor-1.0.7.gemspec]: invalid date format in specification: "2011-10-13 00:00:00.000000000Z" Successfully installed term-ansicolor-1.0.7 Successfully installed foreman-0.26.1 Then when I try to start foreman I get similar: alex@ubuntu:~/NodeHelloWorld$ foreman start Invalid gemspec in [/var/lib/gems/1.8/specifications/foreman-0.26.1.gemspec]: invalid date format in specification: "2011-11-10 00:00:00.000000000Z" Invalid gemspec in [/var/lib/gems/1.8/specifications/term-ansicolor-1.0.7.gemspec]: invalid date format in specification: "2011-10-13 00:00:00.000000000Z" /usr/lib/ruby/vendor_ruby/1.8/rubygems.rb:926:in `report_activate_error': Could not find RubyGem foreman (>= 0) (Gem::LoadError) from /usr/lib/ruby/vendor_ruby/1.8/rubygems.rb:244:in `activate_dep' from /usr/lib/ruby/vendor_ruby/1.8/rubygems.rb:236:in `activate' from /usr/lib/ruby/vendor_ruby/1.8/rubygems.rb:1307:in `gem' from /usr/local/bin/foreman:18 Can anyone help me? I am a newbie to Unix after finally dumping windows as I found I could not get foreman-windows to work for me either I have found this post from someone with apparently the same issue. Does this mean my version of ruby could be wrong? I am running 1.9.1, though again new to ruby as well; alex@ubuntu:~/NodeHelloWorld$ ruby1.9.1 -v ruby 1.9.2p290 (2011-07-09 revision 32553) [i686-linux] Thanks

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  • When is the right time to join open source project for programmer?

    - by Mahesh
    Most of the newcomers in programming start with basic projects to start with programming. Most of the C++ progammers spend some time with puzzles and contests but this is not always helpful. Sometimes you've to spend some time on real projects. Starting your own open source project could be a problem in self-learning for newbie cause of lack of mentors and peers who can't look at your code and give suggestions. Open source projects can solve this problem, some projects could be best suited for new programmers. Besides everybody is newbie at some point. So i'll try and make this question a bit from beginners perspective. I tried few questions on stack overflow before asking this like How do i join & Bare minimum you need and how to get involved with open source and what level of programming etc. But this is not helping me when it comes to self-evaluating with skills. How to find that out ? How can i check what it takes to join open source project and am i really that comfortable with huge source code etc. My question is when to consider yourself comfortable joining open source programming ? I mean how will you test yourself that you're ready to take burden of big/small projects of open source ? how will you test yourself to see if you could work with version control/other programmers/tight schedule etc ?

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  • Advantages of Scala vs. Groovy with JAVA EE 6 Applications.

    - by JAVA EE Wannabe
    Please let me first emphasize that I am not looking for flare wars. I just want advices from people who have real experiences. I started learning JAVA EE 6 as real newbie and am having had time choosing what tools to use. First problem is what is the advantage of using Scala vs. Groovy with Java EE 6 apps over Java? I've seen on some blogs people mentioning you gonna write less code but as a newbie I don't know what other advantages and disadvantages are there. Second problem is Netbeans 6.9 or Helios 3.6.1? I realized that with eclipse I can easily mix EE 6 applications with Groovy or Scala without any problems (I only did this by displaying a String message from Scala and Groovy classes.). With Netbeans the only I can think of is having separate Java project libraries and using the jars in my web app. But also realize to the extent of my little knowledge Netbeans has better support for Java EE 6. Please need your expert advice. Thanks.

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  • Why do VMs need to be "stack machines" or "register machines" etc.?

    - by Prog
    (This is an extremely newbie-ish question). I've been studying a little about Virtual Machines. Turns out a lot of them are designed very similarly to physical or theoretical computers. I read that the JVM for example, is a 'stack machine'. What that means (and correct me if I'm wrong) is that it stores all of it's 'temporary memory' on a stack, and makes operations on this stack for all of it's opcodes. For example, the source code 2 + 3 will be translated to bytecode similar to: push 2 push 3 add My question is this: JVMs are probably written using C/C++ and such. If so, why doesn't the JVM execute the following C code: 2 + 3..? I mean, why does it need a stack, or in other VMs 'registers' - like in a physical computer? The underlying physical CPU takes care of all of this. Why don't VM writers simply execute the interpreted bytecode with 'usual' instructions in the language the VM is programmed with? Why do VMs need to emulate hardware, when the actual hardware already does this for us? Again, very newbie-ish questions. Thanks for your help

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  • Unable to start Ubuntu 12.04. The system is running in low-graphics

    - by kaleidoscpicsoul
    I am a newbie to Ubuntu. I installed Ubuntu 12.04 using a USB Stick and it was running all fine for a few weeks and this error popped up. According to one of my friend, the best way was to re-install Ubuntu. Being from a non unix background i thought the same too and after the second install it happened again, but only this time was much quicker, in 3 days. I don't want to re-install Ubuntu every time this happens. I am a complete newbie to Linux which means that i am really bad at using terminal. I know there are other people who fixed this issue using this very same forum, but unfortunately the answers provided are too complex for me to understand. Please let me know how to do this. Things I want to let you know: I would need help step by step if that is alright with you. After i get the error i get the options and i click exit to console login I get the following message in a black screen (which i think is a command line sort of thing): * Stopping save kernel messages [OK] apache2: Could not reliably determine the server's fully qualified domain name,using 127.0.1.1 for ServerName [OK] * Starting web server apache2 and a blinking cursor. So basically it looks like a dead end for my non unixy eye. And one final thing is before this issue had happened i had tried configuring Python to Apache2. For that i had uninstalled and installed LAMP server several time and edited the configuration files too. I don't know if this really is a concern, but I don't know.. I have a USB with Ubuntu 12.04 in it so i can install it anytime. (But i want to know what the issue is rather than running away) . I migrated to Ubuntu from Windows and i have no plans to go back. I think that's from my side. Please let me know if there are any questions.

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  • Error loading Mongrel in Aptana Ruby Application on Vista

    - by floatingfrisbee
    I'm brand new at Ruby. Trying to set up the first application/project using Aptana Studio. Here are my ruby and gem versions c:\>ruby -v ruby 1.9.1p378 (2010-01-10 revision 26273) [i386-mingw32] c:\>gem -v 1.3.6 I am seeing this error below while starting my ruby application. I'm developing on Vista (sucks, I know but am working on changing that) C:/Ruby/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:156:in `require': 126: The specified module could not be found. - C:/Ruby/lib/ruby/gems/1.9.1/gems/mongrel-1.1.5-x86-mingw32/lib/http11.so (LoadError) from C:/Ruby/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:156:in `block in require' from C:/Ruby/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:521:in `new_constants_in' from C:/Ruby/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:156:in `require' from C:/Ruby/lib/ruby/gems/1.9.1/gems/mongrel-1.1.5-x86-mingw32/lib/mongrel.rb:12:in `<top (required)>' from C:/Ruby/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:156:in `require' from C:/Ruby/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:156:in `block in require' from C:/Ruby/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:521:in `new_constants_in' from C:/Ruby/lib/ruby/gems/1.9.1/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:156:in `require' from C:/Ruby/lib/ruby/gems/1.9.1/gems/rack-1.0.0/lib/rack/handler/mongrel.rb:1:in `<top (required)>' from C:/Ruby/lib/ruby/gems/1.9.1/gems/rack-1.0.0/lib/rack/handler.rb:17:in `const_get' from C:/Ruby/lib/ruby/gems/1.9.1/gems/rack-1.0.0/lib/rack/handler.rb:17:in `block in get' from C:/Ruby/lib/ruby/gems/1.9.1/gems/rack-1.0.0/lib/rack/handler.rb:17:in `each' from C:/Ruby/lib/ruby/gems/1.9.1/gems/rack-1.0.0/lib/rack/handler.rb:17:in `get' from C:/Ruby/lib/ruby/gems/1.9.1/gems/rails-2.3.4/lib/commands/server.rb:45:in `<top (required)>' from C:/Users/Me - Admin/My Documents/Aptana RadRails Workspace/EventBuzz/script/server:3:in `require' from C:/Users/Me - Admin/My Documents/Aptana RadRails Workspace/EventBuzz/script/server:3:in `<top (required)>' from -e:2:in `load' from -e:2:in `<main>' As a part of fixing this issue, I've installed the following gems and updates c:\>gem update --system Updating RubyGems Nothing to update c:\>gem install rails capistrano mongrel mongrel_cluster Successfully installed rails-2.3.5 Successfully installed net-ssh-2.0.21 Successfully installed net-sftp-2.0.4 Successfully installed net-scp-1.0.2 Successfully installed net-ssh-gateway-1.0.1 Successfully installed highline-1.5.2 Successfully installed capistrano-2.5.18 Successfully installed mongrel-1.1.5-x86-mingw32 Successfully installed mongrel_cluster-1.0.5 9 gems installed Installing ri documentation for rails-2.3.5... Installing ri documentation for net-ssh-2.0.21... Installing ri documentation for net-sftp-2.0.4... Installing ri documentation for net-scp-1.0.2... Installing ri documentation for net-ssh-gateway-1.0.1... Installing ri documentation for highline-1.5.2... Installing ri documentation for capistrano-2.5.18... Installing ri documentation for mongrel-1.1.5-x86-mingw32... Installing ri documentation for mongrel_cluster-1.0.5... Updating class cache with 1380 classes... Installing RDoc documentation for rails-2.3.5... Installing RDoc documentation for net-ssh-2.0.21... Installing RDoc documentation for net-sftp-2.0.4... Installing RDoc documentation for net-scp-1.0.2... Installing RDoc documentation for net-ssh-gateway-1.0.1... Installing RDoc documentation for highline-1.5.2... Installing RDoc documentation for capistrano-2.5.18... Installing RDoc documentation for mongrel-1.1.5-x86-mingw32... Installing RDoc documentation for mongrel_cluster-1.0.5... c:\>gem install mysql Successfully installed mysql-2.8.1-x86-mingw32 1 gem installed Installing ri documentation for mysql-2.8.1-x86-mingw32... Updating class cache with 1641 classes... Installing RDoc documentation for mysql-2.8.1-x86-mingw32... Ideas as to what is going on?

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  • What good technology podcasts are out there?

    - by Michael Stum
    Yes, Podcasts, those nice little Audiobooks I can listen to on the way to work. With the current amount of Podcasts, it's like searching a needle in a haystack, except that the haystack happens to be the Internet and is filled with too many of these "Hot new Gadgets" stuff :( Now, even though I am mainly a .NET developer nowadays, maybe anyone knows some good Podcasts from people regarding the whole software lifecycle? Unit Testing, Continous Integration, Documentation, Deployment... So - what are you guys and gals listening to? Please note that the categorizations are somewhat subjective and may not be 100% accurate as many podcasts cover several areas. Categorization is made against what is considered the "main" area. General Software Engineering / Productivity Stack Overflow TekPub (Requires Paid Subscription) SE Radio 43 Folders Perspectives Dr. Dobb's (now a video feed) The Pragmatic Podcast (Inactive) IT Matters Agile Toolkit Podcast The Stack Trace (Inactive) Parleys Techzing The Startup Success Podcast Berkeley CS class lectures FOSS Weekly .NET / Visual Studio / Microsoft Herding Code Hanselminutes .NET Rocks! Deep Fried Bytes Alt.Net Podcast Polymorphic Podcast Sparkling Client (The Silverlight Podcast) dnrTV! Spaghetti Code ASP.NET Podcast Channel 9 Radio TFS PowerScripting Podcast The Thirsty Developer Elegant Code ConnectedShow Crafty Coders Coding QA jQuery yayQuery The official jQuery podcast Java / Groovy The Java Posse Grails Podcast Java Technology Insider Ruby / Rails Railscasts Rails Envy The Ruby on Rails Podcast Rubiverse Web Design / JavaScript / Ajax WebDevRadio Boagworld The Rissington podcast Ajaxian YUI Theater Unix / Linux / Mac / iPhone Mac Developer Network Hacker Public Radio Linux Outlaws Mac OS Ken LugRadio Linux radio show (Inactive) The Linux Action Show! Linux Kernel Mailing List (LKML) Summary Podcast Stanford's iPhone programming class SysAdmin, Security or Infrastructure RunAs Radio Security Now! Crypto-Gram Security Podcast Hak5 VMWare VMTN Windows Weekly PaulDotCom Security The Register - Semi-Coherent Computing FeatherCast General Tech / Business Tekzilla This Week in Tech The Guardian Tech Weekly PCMag Radio Podcast Entrepreneurship Corner Manager Tools Other / Misc. / Podcast Networks IT Conversations Retrobits Podcast No Agenda Netcast Cranky Geeks The Command Line Freelance Radio IBM developerWorks The Register - Open Season Drunk and Retired Technometria Sod This Radio4Nerds Hacker Medley

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  • Newly installed Ruby gems not showing up in $LOAD_PATH

    - by randombits
    I'm using MacPorts in order to manage my Ruby/Rails/Gems installations. Recently after doing a gem install wirble, wirble fails to load when I start an instance of irb. Here's the output: $ irb --simple-prompt Couldn't load Wirble: no such file to load -- wirble The Wirble gem doesn't show up in my $LOAD_PATH: >> puts $: /opt/local/lib/ruby1.9/gems/1.9.1/gems/actionmailer-2.3.5/lib /opt/local/lib/ruby1.9/gems/1.9.1/gems/actionpack-2.3.5/lib /opt/local/lib/ruby1.9/gems/1.9.1/gems/activerecord-2.3.5/lib /opt/local/lib/ruby1.9/gems/1.9.1/gems/activeresource-2.3.5/lib /opt/local/lib/ruby1.9/gems/1.9.1/gems/activesupport-2.3.5/lib /opt/local/lib/ruby1.9/gems/1.9.1/gems/mysql-2.8.1/lib /opt/local/lib/ruby1.9/gems/1.9.1/gems/mysql-2.8.1/ext /opt/local/lib/ruby1.9/gems/1.9.1/gems/mysql-2.8.1/bin /opt/local/lib/ruby1.9/gems/1.9.1/gems/rack-1.0.1/bin /opt/local/lib/ruby1.9/gems/1.9.1/gems/rack-1.0.1/lib /opt/local/lib/ruby1.9/gems/1.9.1/gems/rails-2.3.5/bin /opt/local/lib/ruby1.9/gems/1.9.1/gems/rails-2.3.5/lib /opt/local/lib/ruby1.9/gems/1.9.1/gems/rake-0.8.7/bin /opt/local/lib/ruby1.9/gems/1.9.1/gems/rake-0.8.7/lib /opt/local/lib/ruby1.9/gems/1.9.1/gems/rubygems-update-1.3.7/hide_lib_for_update /opt/local/lib/ruby1.9/gems/1.9.1/gems/rubygems-update-1.3.7/bin /opt/local/lib/ruby1.9/site_ruby/1.9.1 /opt/local/lib/ruby1.9/site_ruby/1.9.1/i386-darwin10 /opt/local/lib/ruby1.9/site_ruby /opt/local/lib/ruby1.9/vendor_ruby/1.9.1 /opt/local/lib/ruby1.9/vendor_ruby/1.9.1/i386-darwin10 /opt/local/lib/ruby1.9/vendor_ruby /opt/local/lib/ruby1.9/1.9.1 /opt/local/lib/ruby1.9/1.9.1/i386-darwin10 . => nil >> The gem is definitely installed: $ gem list |grep -i wirble wirble (0.1.3) It is located in /opt/local/lib/ruby/gems/1.9.1/gems/wirble-0.1.3/ How do I get this and future gems I installed appended to my $LOAD_PATH?

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  • osx rvm ruby 1.8.7 nokogiri 1.4.1 - ERROR: Failed to build gem native extension.

    - by tommasop
    I'm stuck with this problem. cat ~/.rvm/gems/ruby-1.8.7-p249/gems/nokogiri-1.4.1/ext/nokogiri/mkmf.log Gives this errors (clipped) conftest.c:3: error: 'xmlParseDoc' undeclared (first use in this function) conftest.c:3: error: (Each undeclared identifier is reported only once conftest.c:3: error: for each function it appears in.) For several libraries which are found in the system. If I manually go into ~/.rvm/gems/ruby-1.8.7-p249/gems/nokogiri-1.4.1/ext/nokogiri/ And compile and install everything goes fine ruby extconf.rb make make install mkdir -p /Users/tommasop/.rvm/rubies/ruby-1.8.7-p249/lib/ruby/site_ruby/1.8/i686-darwin9.8.0/nokogiri /usr/bin/install -c -m 0755 nokogiri.bundle /Users/tommasop/.rvm/rubies/ruby-1.8.7-p249/lib/ruby/site_ruby/1.8/i686-darwin9.8.0/nokogiri except that on script/server: ? script/server --debugger => Booting Mongrel => Rails 2.3.5 application starting on http://0.0.0.0:3000 ./script/../config/../vendor/rails/railties/lib/rails/gem_dependency.rb:119:Warning: Gem::Dependency#version_requirements is deprecated and will be removed on or after August 2010. Use #requirement The following gems have native components that need to be built nokogiri You're running: ruby 1.8.7.249 at /Users/tommasop/.rvm/rubies/ruby-1.8.7-p249/bin/ruby rubygems 1.3.6 at /Users/tommasop/.rvm/gems/ruby-1.8.7-p249, /Users/tommasop/.rvm/gems/ruby-1.8.7-p249%global Run `rake gems:build` to build the unbuilt gems. Any help greatly appreciated!

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  • Calling a subclass method from a superclass

    - by Shaun
    Preface: This is in the context of a Rails application. The question, however, is specific to Ruby. Let's say I have a Media object. class Media < ActiveRecord::Base end I've extended it in a few subclasses: class Image < Media def show # logic end end class Video < Media def show # logic end end From within the Media class, I want to call the implementation of show from the proper subclass. So, from Media, if self is a Video, then it would call Video's show method. If self is instead an Image, it would call Image's show method. Coming from a Java background, the first thing that popped into my head was 'create an abstract method in the superclass'. However, I've read in several places (including Stack Overflow) that abstract methods aren't the best way to deal with this in Ruby. With that in mind, I started researching typecasting and discovered that this is also a relic of Java thinking that I need to banish from my mind when dealing with Ruby. Defeated, I started coding something that looked like this: def superclass_method # logic this_media = self.type.constantize.find(self.id) this_media.show end I've been coding in Ruby/Rails for a while now, but since this was my first time trying out this behavior and existing resources didn't answer my question directly, I wanted to get feedback from more-seasoned developers on how to accomplish my task. So, how can I call a subclass's implementation of a method from the superclass in Rails? Is there a better way than what I ended up (almost) implementing?

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  • how to pass instance variables between handlers (routes) in sinatra (without flash, sessions, class variable or db)?

    - by jj_
    Say you have: get '/' do haml :index end get '/form' do haml :form end post '/form' do @message = params[:message] redirect to ('/') --- how to pass @message here? end I'd like the @message instance variable to be available (passed to) in "/" action as well, so I can show it in haml view. How can I do that without using session, flash, a @@class_variable, or db persistence ? I'd simply like to pass values as if I was working with passing values between methods. I don't want to use session cookies because user could have them turned off, I don't like it being a class variable which is exposed to all code, and I don't need to overhead of a db. Thanks edit: This is another question explaining a very easy way to deal with this in rails Passing parameters in rails redirect_to This is some more info i gathered around from forums. The following works for rails, i've tried it in Sinatra but no luck, but please try it, maybe I did something wrong, I don't know, and if this code help someone come up with a new idea, please share it If you are redirecting to action2 at the end of action1, just append the value to the end of the redirect: my_var = <some logic> redirect_to :action => 'action2', :my_var => my_var on the same thread another user proposes the folowing: def action1 redirect_to :action => 'action2', :value => params[:current_varaible] end def action2 puts params[:value].inspect end source: http://www.ruby-forum.com/topic/134953 Can something like this work in Sinatra? Thanks

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  • Capistrano deploying to different servers with different authentication methods

    - by marimaf
    I need to deploy to 2 different server and these 2 servers have different authentication methods (one is my university's server and the other is an amazon web server AWS) I already have running capistrano for my university's server, but I don't know how to add the deployment to AWS since for this one I need to add ssh options for example to user the .pem file, like this: ssh_options[:keys] = [File.join(ENV["HOME"], ".ssh", "test.pem")] ssh_options[:forward_agent] = true I have browsed starckoverflow and no post mention about how to deal with different authentication methods this and this I found a post that talks about 2 different keys, but this one refers to a server and a git, both usings different pem files. This is not the case. I got to this tutorial, but couldn't find what I need. I don't know if this is relevant for what I am asking: I am working on a rails app with ruby 1.9.2p290 and rails 3.0.10 and I am using an svn repository Please any help os welcome. Thanks a lot

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  • ubuntu 8.04lts + rdiff-backup: Should I install from source instead of using apt repositories?

    - by egarcia
    I'm trying to use rdiff-backup in order to make backup copies of some folders inside an Ubuntu 8.04LTS server. I'm attempting to do the backup on another server with a more modern Ubuntu distro (9.10). I'll call this one the "client". rdiff-backup needs to be installed on both the client and the server. It is available on the apt repositories on both machines, so I installed it using sudo apt-get install rdiff-backup. The problem is that the version installed on the server is older than the one on the client (1.1.15 vs 1.2.8). Thus I get errors when I try do make them work together. So I need both versions to be the same. What is the standard procedure in these cases? Should I attempt to upgrade the version on the server, or downgrade the version on the client? And how whould I do that? In case it is useful, I'd like to point out that the rdiff-backup apt-package has some dependencies - librsync1 & python-support Attaching the errors I got in case they help: rdiff-backup egarcia@test::/var/rails/ohwr/backup /home/kikito/backup/files Warning: Local version 1.2.8 does not match remote version 1.1.15. Exception ' Warning Security Violation! Bad request for function: rpath.make_file_dict with arguments: ['/var/rails/ohwr/backup'] ' raised of class '<class 'rdiff_backup.Security.Violation'>': File "/usr/lib/pymodules/python2.6/rdiff_backup/Main.py", line 304, in error_check_Main try: Main(arglist) File "/usr/lib/pymodules/python2.6/rdiff_backup/Main.py", line 321, in Main rps = map(SetConnections.cmdpair2rp, cmdpairs) File "/usr/lib/pymodules/python2.6/rdiff_backup/SetConnections.py", line 78, in cmdpair2rp return rpath.RPath(conn, filename).normalize() File "/usr/lib/pymodules/python2.6/rdiff_backup/rpath.py", line 884, in __init__ else: self.setdata() File "/usr/lib/pymodules/python2.6/rdiff_backup/rpath.py", line 908, in setdata self.data = self.conn.rpath.make_file_dict(self.path) File "/usr/lib/pymodules/python2.6/rdiff_backup/connection.py", line 450, in __call__ return apply(self.connection.reval, (self.name,) + args) File "/usr/lib/pymodules/python2.6/rdiff_backup/connection.py", line 370, in reval if isinstance(result, Exception): raise result Traceback (most recent call last): File "/usr/bin/rdiff-backup", line 30, in <module> rdiff_backup.Main.error_check_Main(sys.argv[1:]) File "/usr/lib/pymodules/python2.6/rdiff_backup/Main.py", line 304, in error_check_Main try: Main(arglist) File "/usr/lib/pymodules/python2.6/rdiff_backup/Main.py", line 321, in Main rps = map(SetConnections.cmdpair2rp, cmdpairs) File "/usr/lib/pymodules/python2.6/rdiff_backup/SetConnections.py", line 78, in cmdpair2rp return rpath.RPath(conn, filename).normalize() File "/usr/lib/pymodules/python2.6/rdiff_backup/rpath.py", line 884, in __init__ else: self.setdata() File "/usr/lib/pymodules/python2.6/rdiff_backup/rpath.py", line 908, in setdata self.data = self.conn.rpath.make_file_dict(self.path) File "/usr/lib/pymodules/python2.6/rdiff_backup/connection.py", line 450, in __call__ return apply(self.connection.reval, (self.name,) + args) File "/usr/lib/pymodules/python2.6/rdiff_backup/connection.py", line 370, in reval if isinstance(result, Exception): raise result rdiff_backup.Security.Violation: Warning Security Violation! Bad request for function: rpath.make_file_dict with arguments: ['/var/rails/ohwr/backup']

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