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• Program for WIndows Embedded

  - by Syma

  Hi, We have request from our clients to provide a POS terminal version of our web-based software. They want to be able to enter record to their database from POS terminal (via web service) instead of using PC browser. I am the one to develop this application, as I am the lead developer of the main application. I haven't done any Windows embedded programming or .net compact edition before and would appreciate link to good tutorial or info on how to start developing for Windows CE 6.0 enabled POS terminal or device. Thanks

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• Embedded device, once seen on code project and can't remember the manufacturer

  - by MeBerserk

  The article was about an embedded device containing a memory chip, processor and could be extended with bluetooth wifi and an other RF transmitter. The manufacturer developed a framework which contained: memory managment, TCP/IP stacks and more. Anyone has an idea what it was? thnx

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• Configuration management for Windows Embedded Studio 2009?

  - by PhilMY

  I have had some success using WES2009 and svn to control an XPECMD script, SLD files and their dependencies. What's the best way to apply configuration management to Windows Embedded Studio projects?

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• How to declare different non-JPA annotations on embedded classes

  - by e99y

  @Embedded public class EmbedMe { private String prop1; private String prop2; } @Entity public class EncryptedEmbedded { @Embeddable private EmbedMe enc; } I am current using Jasypt for encryption. Is there a way to indicate that the @Embeddable in EncryptedEmbedded will use @Type(value = "newDeclaredTypeHere") per attribute (prop1, prop2)? Thanks in advance... ;)

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• How do I get Haml to work with Rails?

  - by 24hourCoder

  I am trying to get Haml to work with my Ruby on Rails project. I am new to Ruby on Rails and I really like it. However, when I attempt to add an aplication.html.haml or index.html.haml for a view, I just receive errors. I am using NetBeans as my IDE. Any help would be appreciated.

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• Embedded linux call using system

  - by Gav

  I'm having a problem using system("command") call in C on an embedded system in linux. The call to the app works fine on the command line but when called in a compiled cgi script using the system command it is painfully slow. Any help appreciated?

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• How do I uninstall a ruby version installed via source?

  - by Aaron McIver

  I installed a version (1.9.3-p194) of ruby via source using make install and realized this may have been the wrong route to take. Upon doing this, I realized this was a mistake and I should be using a solution such as rvm to address my ruby versions within the OS. I looked to see if an uninstall existed to be ran in conjunction with make and it didn't. I then proceeded to install rvm and add the aforementioned version in to my list of managed rubies within rvm which is not listed as ext-ruby-1.9.3-p194. rvm rubies ext-ruby-1.9.3-p194 [ x86_64 ] =* ruby-1.9.3-p194 [ x86_64 ] # => - current # =* - current && default # * - default** When I perform an rvm remove, it simply removes it from the rubies list however it still exists within /usr/local/bin. I am not concerned with the system install ruby version residing in /usr/bin as I understand that is tied to the OS and should simply be ignored. How can I safely uninstall/remove the aforementioned version and all the places in which it was installed, short of looking at the install script?

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• phusion_passenger/plugin.r b:37:in `load': undefined method `dir' for nil:NilClass (NoMethodError)

  - by dohkoos

  gem install passenger # version 3.0.2 run the command 'passenger start' then I got the error: c:/Ruby187/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passenger/plugin.r b:37:in `load': undefined method `dir' for nil:NilClass (NoMethodError) from c:/Ruby187/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passe nger/plugin.rb:34:in `each' from c:/Ruby187/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passe nger/plugin.rb:34:in `load' from c:/Ruby187/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passe nger/plugin.rb:72:in `initialize' from c:/Ruby187/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passe nger/standalone/start_command.rb:52:in `new' from c:/Ruby187/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passe nger/standalone/start_command.rb:52:in `initialize' from c:/Ruby187/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passe nger/standalone/main.rb:93:in `new' from c:/Ruby187/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passe nger/standalone/main.rb:93:in `run_command' from c:/Ruby187/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passe nger/standalone/main.rb:48:in `each_command' from c:/Ruby187/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passe nger/standalone/main.rb:43:in `each' from c:/Ruby187/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passe nger/standalone/main.rb:43:in `each_command' from c:/Ruby187/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passe nger/standalone/main.rb:91:in `run_command' from c:/Ruby187/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passe nger/standalone/main.rb:62:in `run!' from c:/Ruby187/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passe nger/standalone/main.rb:39:in `run!' from c:/Ruby187/lib/ruby/gems/1.8/gems/passenger-3.0.2/bin/passenger:32 from c:/Ruby187/bin/passenger:19:in `load' from c:/Ruby187/bin/passenger:19 Any ideas would be greatly appreciated.

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• Please help to clean up my RoR development environment

  - by PeterWong

  I started RoR development a few months ago, and being new to Mac... Time flies and now I have a lot different ruby versions, rails versions and gems versions located everywhere......And currently I installed rvm and things got even worst, all things messed! And so I started want to clean all things and use rvm again! I want to uninstall all gems, all rails, and all ruby versions, except the system's default one (the very old one born with the mac). Or any other better solutions or suggestions!? Please help! there is some info that I think will be useful: which -a ruby /opt/local/bin/ruby /opt/local/bin/ruby /usr/local/bin/ruby /usr/bin/ruby /usr/local/bin/ruby which -a rails /usr/local/bin/rails /usr/bin/rails /usr/local/bin/rails which -a compass # simliar for rspec and many other gems /usr/local/bin/compass /usr/local/bin/compass gem list *** LOCAL GEMS *** abstract (1.0.0) actionmailer (3.0.3, 3.0.1, 3.0.0, 3.0.0.rc2, 2.3.9, 2.3.5, 2.3.4) actionpack (3.0.3, 3.0.1, 3.0.0, 3.0.0.rc2, 2.3.9, 2.3.5, 2.3.4) activemodel (3.0.3, 3.0.1, 3.0.0, 3.0.0.rc2) activerecord (3.0.3, 3.0.1, 3.0.0, 3.0.0.rc2, 2.3.9, 2.3.5, 2.3.4) activeresource (3.0.3, 3.0.1, 3.0.0, 3.0.0.rc2, 2.3.9, 2.3.5, 2.3.4) activesupport (3.0.3, 3.0.1, 3.0.0, 3.0.0.rc2, 2.3.9, 2.3.5, 2.3.4) addressable (2.2.2) arel (2.0.6, 1.0.1, 1.0.0.rc1) authlogic (2.1.6, 2.1.3) aws-s3 (0.6.2) base32 (0.1.2) block_helpers (0.3.3) bluecloth (2.0.9) bowline (0.9.4) bowline-bundler (0.0.4) bson (1.1.2) builder (2.1.2) bundler (1.0.2, 1.0.0) compass (0.10.6) crack (0.1.7) devise (1.1.3) diff-lcs (1.1.2) differ (0.1.1) dynamic_form (1.1.3) engineyard (1.3.1) engineyard-serverside-adapter (1.3.3) erubis (2.6.6) escape (0.0.4) extlib (0.9.15) facebooker (1.0.75) faker (0.3.1) faraday (0.5.3, 0.5.2) fast_gettext (0.5.10, 0.4.17) fastercsv (1.5.3) fastthread (1.0.7) ffi (0.6.3) formatize (1.0.1) formtastic (1.1.0, 1.0.1) gemcutter (0.5.0) gettext (2.1.0) git (1.2.5) gosu (0.7.25 universal-darwin) haml (3.0.24, 3.0.23, 3.0.22, 3.0.21, 3.0.18) haml-rails (0.3.4) heroku (1.10.13, 1.9.13) highline (1.5.2) hirb (0.3.4, 0.3.3) hpricot (0.8.2) i18n (0.5.0, 0.4.2, 0.4.1, 0.3.7) jeweler (1.4.0) json (1.4.6) json_pure (1.4.3) linkedin (0.1.8) locale (2.0.5) mail (2.2.12, 2.2.11, 2.2.10, 2.2.9, 2.2.7, 2.2.6.1) memcache-client (1.8.5) meta_search (0.9.8, 0.9.7.2, 0.9.7.1, 0.9.6, 0.9.4) mime-types (1.16) mongo (1.1.2) mongoid (2.0.0.beta.20) multi_json (0.0.5) multipart-post (1.0.1) mysql (2.8.1) mysql2 (0.2.6, 0.2.4, 0.2.3) net-ldap (0.1.1) nice-ffi (0.4) nokogiri (1.4.4, 1.4.2) oa-basic (0.1.6) oa-core (0.1.6) oa-enterprise (0.1.6) oa-oauth (0.1.6) oa-openid (0.1.6) oauth (0.4.4, 0.4.3, 0.4.1) oauth-plugin (0.4.0.pre1) oauth2 (0.1.0) omniauth (0.1.6) paperclip (2.3.6, 2.3.4, 2.3.1.1) passenger (2.2.12) polyglot (0.3.1) pyu-ruby-sasl (0.0.3.2) querybuilder (0.9.2, 0.5.9) rack (1.2.1, 1.1.0, 1.0.1) rack-cache (0.5.3) rack-cache-purge (0.0.2, 0.0.1) rack-mount (0.6.13) rack-openid (1.2.0) rack-test (0.5.6, 0.5.4) railroady (0.11.2) rails (3.0.3, 3.0.1, 3.0.0, 3.0.0.rc2, 2.3.9, 2.3.5, 2.3.4) railties (3.0.3, 3.0.1, 3.0.0, 3.0.0.rc2) rake (0.8.7) RedCloth (3.0.4) rest-client (1.6.1) roxml (3.1.5) rscribd (1.2.0) rspec (2.3.0, 2.2.0, 2.1.0, 2.0.1) rspec-core (2.3.0, 2.2.1, 2.1.0, 2.0.1) rspec-expectations (2.3.0, 2.2.0, 2.1.0, 2.0.1) rspec-mocks (2.3.0, 2.2.0, 2.1.0, 2.0.1) rspec-rails (2.3.0, 2.2.0, 2.1.0, 2.0.1) ruby-hmac (0.4.0) ruby-mysql (2.9.3) ruby-ole (1.2.10.1) ruby-openid (2.1.8) ruby-openid-apps-discovery (1.2.0) ruby-recaptcha (1.0.2, 1.0.0) ruby-sdl-ffi (0.3) ruby-termios (0.9.6) ruby_parser (2.0.5) rubyforge (2.0.4) rubygame (2.6.4) rubygems-update (1.3.7) rubyless (0.7.0, 0.6.0, 0.3.5) rubyntlm (0.1.1) rubyzip2 (2.0.1) scribd_fu (2.0.6) searchlogic (2.4.27, 2.4.23) sequel (3.16.0, 3.15.0, 3.13.0) sexp_processor (3.0.5) shoulda (2.11.3) sinatra (1.0) slim (0.8.0) slim-rails (0.1.2) spreadsheet (0.6.4.1) sqlite3-ruby (1.3.2, 1.3.1) ssl_requirement (0.1.0) subdomain-fu (1.0.0.beta2, 0.5.4) supermodel (0.1.4) syntax (1.0.0) taps (0.3.13, 0.3.11) templater (1.0.0) temple (0.1.6) text-format (1.0.0) text-hyphen (1.0.0) thor (0.14.6, 0.14.4, 0.14.3, 0.14.1, 0.14.0) tilt (1.1) treetop (1.4.9, 1.4.8) tzinfo (0.3.23) uuidtools (2.1.1, 2.0.0) validates_timeliness (3.0.0.beta.4, 2.3.1) warden (0.10.7) will_paginate (3.0.pre2, 2.3.15, 2.3.14) xml-simple (1.0.12) ya2yaml (0.30) yajl-ruby (0.7.8, 0.7.7) yamltest (0.7.0) zena (0.16.9, 0.16.8) ====== I have ran sudo rvm implode and sudo rm -rf ~/.rvm, so no rvm now. gem env RubyGems Environment: - RUBYGEMS VERSION: 1.3.7 - RUBY VERSION: 1.8.7 (2009-06-12 patchlevel 174) [i686-darwin10.2.0] - INSTALLATION DIRECTORY: /usr/local/lib/ruby/gems/1.8 - RUBY EXECUTABLE: /usr/local/bin/ruby - EXECUTABLE DIRECTORY: /usr/local/bin - RUBYGEMS PLATFORMS: - ruby - x86-darwin-10 - GEM PATHS: - /usr/local/lib/ruby/gems/1.8 - /Users/peter/.gem/ruby/1.8 - GEM CONFIGURATION: - :update_sources => true - :verbose => true - :benchmark => false - :backtrace => false - :bulk_threshold => 1000 - :sources => ["http://rubygems.org/", "http://gems.github.com"] - REMOTE SOURCES: - http://rubygems.org/ - http://gems.github.com === ls -al /usr/local/lib/ total 5704 drwxr-xr-x 7 root wheel 238 Jun 1 2010 . drwxr-xr-x 9 root wheel 306 Dec 15 16:20 .. -rw-r--r-- 1 root wheel 1717208 Jun 1 2010 libruby-static.a -rwxr-xr-x 1 root wheel 1191880 Jun 1 2010 libruby.1.8.7.dylib lrwxrwxrwx 1 root wheel 19 Jun 1 2010 libruby.1.8.dylib -> libruby.1.8.7.dylib lrwxrwxrwx 1 root wheel 19 Jun 1 2010 libruby.dylib -> libruby.1.8.7.dylib drwxr-xr-x 6 root wheel 204 Jun 1 2010 ruby

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• Is it possible to use RubyGnome2's/QtRuby's HTML renderers to make UI for a Ruby script?

  - by mjr

  I'd like to make a graphical user interface for my script, instead of running it from the console. I'm aware there's a wealth of UI libraries for Ruby, but I'm quite familiar with HTML and CSS and I'd like to use them for building an interface. So the question is: Is it possible to use a HTML rendering library to make such an UI? From what I understand, it's relatively easy to put in a HTML rendered view of something, but is it possible to communicate back with the script? Like when I push that big red button, it actually tells the script to act on it? Obviously it's possible if the script run on the server side, but I'd like to run it as a desktop application.

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• nanoc installation setup in Linux

  - by Ananth

  I'm a newbie to Ruby. Trying to setup nanoc in my machine. I'm running Ubuntu 14.04. After the nanoc installation, when I type $nanoc --version I get the following errors: /home/ananth/.rvm/gems/ruby-head@global/gems/bundler-1.6.2/lib/bundler/shared_helpers.rb:24:in `default_gemfile': Could not locate Gemfile (Bundler::GemfileNotFound) from /home/ananth/.rvm/gems/ruby-head@global/gems/bundler-1.6.2/lib/bundler.rb:248:in `default_gemfile' from /home/ananth/.rvm/gems/ruby-head@global/gems/bundler-1.6.2/lib/bundler.rb:192:in `root' from /home/ananth/.rvm/gems/ruby-head@global/gems/bundler-1.6.2/lib/bundler.rb:99:in `bundle_path' from /home/ananth/.rvm/gems/ruby-head@global/gems/bundler-1.6.2/lib/bundler.rb:400:in `configure_gem_home_and_path' from /home/ananth/.rvm/gems/ruby-head@global/gems/bundler-1.6.2/lib/bundler.rb:90:in `configure' from /home/ananth/.rvm/gems/ruby-head@global/gems/bundler-1.6.2/lib/bundler.rb:151:in `definition' from /home/ananth/.rvm/gems/ruby-head@global/gems/bundler-1.6.2/lib/bundler.rb:116:in `setup' from /home/ananth/.rvm/gems/ruby-head@global/gems/bundler-1.6.2/lib/bundler.rb:132:in `require' from /home/ananth/.rvm/gems/ruby-head/gems/nanoc-3.7.0/bin/nanoc:7:in `<top (required)>' from /home/ananth/.rvm/gems/ruby-head/bin/nanoc:23:in `load' from /home/ananth/.rvm/gems/ruby-head/bin/nanoc:23:in `<main>' from /home/ananth/.rvm/gems/ruby-head/bin/ruby_executable_hooks:15:in `eval' from /home/ananth/.rvm/gems/ruby-head/bin/ruby_executable_hooks:15:in `<main>' Am I missing something from my rvm? Anything to do with $PATH, .bashrc or .bash_profile? Thanks for the help in advance!

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• Error trying to run rails server

  - by David87

  I am trying to get a basic Rails application to run on my Mac OS X 10.6.5. I created a new app called demo (rails new demo), then went into the demo directory and tried to start the app with rails server. Here is the error message I received: "/Users/dpetrovi/.gem/ruby/1.8/gems/sqlite3-ruby-1.3.2/lib/sqlite3/sqlite3_native.bundle: [BUG] Segmentation fault ruby 1.8.7 (2010-12-23 patchlevel 330) [i686-darwin10] Abort trap" I checked bundle install in the demo folder: "Using rake (0.8.7) Using abstract (1.0.0) Using activesupport (3.0.3) Using builder (2.1.2) Using i18n (0.5.0) Using activemodel (3.0.3) Using erubis (2.6.6) Using rack (1.2.1) Using rack-mount (0.6.13) Using rack-test (0.5.6) Using tzinfo (0.3.23) Using actionpack (3.0.3) Using mime-types (1.16) Using polyglot (0.3.1) Using treetop (1.4.9) Using mail (2.2.13) Using actionmailer (3.0.3) Using arel (2.0.6) Using activerecord (3.0.3) Using activeresource (3.0.3) Using bundler (1.0.7) Using thor (0.14.6) Using railties (3.0.3) Using rails (3.0.3) Using sqlite3-ruby (1.3.2) Your bundle is complete! Use bundle show [gemname] to see where a bundled gem is installed." Ruby, RubyGems, and sqlite3 were installed using MacPorts. Then I used gem to try to install the sqlite3-ruby interface. (sudo gem install sqlite3-ruby). Here is where I first noticed something could be off: "Successfully installed sqlite3-ruby-1.3.2 1 gem installed Installing ri documentation for sqlite3-ruby-1.3.2... No definition for libversion Enclosing class/module 'mSqlite3' for class Statement not known Installing RDoc documentation for sqlite3-ruby-1.3.2... No definition for libversion Enclosing class/module 'mSqlite3' for class Statement not known " I had rails running well on my system a few months ago, so I figured maybe I had some duplicates and it was trying to use the wrong one. I ran: "for cmd in ruby irb gem rake; do which $cmd; done" and got: "/opt/local/bin/ruby /opt/local/bin/irb /opt/local/bin/gem /opt/local/bin/rake" Checking where sqlite3 also gets me: "/opt/local/bin/sqlite3" so they all seem to be in the right place. Obviously /opt/local/bin is in my system path. If I check gems server, it shows that I have installed sqlite3-ruby 1.3.2 gem. Not sure what the problem could be? I am using ruby 1.8.7 (2010-12-23 patchlevel 330) [i686-darwin10]. Macports claims this is the latest (although ive seen 1.9.1) One more thing-- in irb, I tried to check which version of sqlite3 my sqlite3-ruby is bound to, but I can only get this far: ":irb(main):001:0 require 'rubygems' = true irb(main):002:0 require 'sqlite3' /Users/dpetrovi/.gem/ruby/1.8/gems/sqlite3-ruby-1.3.2/lib/sqlite3/sqlite3_native.bundle: [BUG] Segmentation fault ruby 1.8.7 (2010-12-23 patchlevel 330) [i686-darwin10] Abort trap" Any suggestions? Im hoping I overlooked something obvious. Thanks

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• How do I get "ruby" to do what "ruby1.9.1" does?

  - by Daniel

  I want to start off by saying... I really don't need to be using 1.9.2. I understand that you don't ever, ever use Python 3.2, so if the common advice is that I should use 1.8, I'll do that. But don't tell me to do that because it's easier. Whatever version I should be using, though, the question is still relevant: What's a good way to make one command do another command? (I suppose I could write a c program to launch ruby1.9.1, call the executable ruby, and put it in my bin, but this seems like less than a good idea)

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• What are some tasks you might ask a potential ruby developer hire to complete?

  - by opensourcechris

  I would like to start a career path as a developer. As my first Language I chose Ruby to learn. What are some types of coding I might be asked to do as part of an evaluation at a potential employer? For example on my interview... Employer: "So, you think you can be a programer!" Me: "Why yes sir, I believe I would be a fitting addition to your team" Employer: "Well that remains to be seen! To demonstrate your basic knowledge please code insert evaluation project here What would you have me do to demonstrate my skills?

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• How are $LOAD_PATH and $: different?

  - by Benjamin Oakes

  I needed to know what was in my Ruby load path, so I did this: $ ruby -e "puts $LOAD_PATH" It didn't print anything out, which I didn't expect. So I tried this: $ ruby -e "puts $:" /usr/local/lib/site_ruby/1.8 /usr/local/lib/site_ruby/1.8/i486-linux /usr/local/lib/site_ruby/1.8/i386-linux /usr/local/lib/site_ruby /usr/lib/ruby/vendor_ruby/1.8 /usr/lib/ruby/vendor_ruby/1.8/i486-linux /usr/lib/ruby/vendor_ruby /usr/lib/ruby/1.8 /usr/lib/ruby/1.8/i486-linux /usr/lib/ruby/1.8/i386-linux . Why does the second one give me the expected output and the first one doesn't? Shouldn't they be the same? I just tried it in irb, and I got the results I expected. This is my Ruby version, in case it makes a difference: $ ruby --version ruby 1.8.7 (2008-08-11 patchlevel 72) [i486-linux]

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• How can I allow search engines to index my invite only website in ruby on rails?

  - by tstyle

  I have a ruby on rails website that will be in invite-only mode for the next couple of months. Currently I have it set up so visits to any page performs an authentication: before_filter :authenticate, :except => [:beta] //authenticate checks for a logged in user But the webpage has a lot of content that I would like to see indexed by search engines, and I was wondering if there's an easy way to allow crawlers to do their work? I am not very knowledgable on SEO related stuff at all, so sorry if this is an suboptimal way to phrase the question.

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• How can I defend Ruby on Rails against customers' not technical opinion?

  - by okeen

  My customer, a translations business owner, just told me that he has been reading about Ruby on Rails and told me that "there are more PHP guys around there" and "it seems the community prefers it". What would you, as software engineer and freelancer, say to the customer to achieve these goals: Sell Make him see that the technology is my expert decision and Rails is as good or better than PHP (+ whatever framework) for this particular project. UPDATE: Thank you all for the suggestions! Tomorrow I've got another meeting with him, let's see how it goes, I will update again :) UPDATE 2: Finally I told him to read this thread and the result has been fantastic: He gave me the project and we are going to start right now. Thank you all for the help, you have free beer in my charge if we see someday :) BTW: I learned the lesson: be as transparent as possible, because if you believe in yourself and your work, there is no question compromising enough to beat you. regards

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• Rails 3 - yield return or callback won't call in view <%= yield(:sidebar) || render('shared/sidebar'

  - by rzar

  Hey folks, I'm migrating a Website from Rails 2 (latest) to Rails 3 (beta2). Testing with Ruby 1.9.1p378 and Ruby 1.9.2dev (2010-04-05 trunk 27225) Stuck in a situation, i don't know which part will work well. Suspect yield is the problem, but don't know exactly. In my Layout Files I use the following technique quite often: app/views/layouts/application.html.erb: <%= yield(:sidebar) || render('shared/sidebar') %> For Example the partial look like: app/views/shared/_sidebar.html.erb: <p>Default sidebar Content. Bla Bla</p> Now it is time for the key part! In any view, I want to create a content_for block (optional). This can contain a pice of HTML etc. example below. If this block is set, the pice HTML inside should render in application.html.erb. If not, Rails should render the Partial at shared/_sidebar.html.erb on the right hand side. app/views/books/index.html.erb: <% content_for :sidebar do %> <strong>You have to read REWORK, a book from 37signals!</strong> <% end %> So you've got the idea. Hopefully. This technique worked well in any Rails 2.x Application. Now, in Rails 3 (beta2) only the yield Part is working. || render('shared/sidebar') The or side will not process by rails or maybe ruby. Thanks for input and time!

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• 'Stack level too deep' error in engine-like plugin with globalize

  - by nutsmuggler

  Hello folks. I have built an engine-like plugin thanks to the new features of Rails 2.3. It's a 'Product' module for a CMS, extrapolated from a previously existing (and working) model/controller. The plugin relies on easy_fckeditor and on globalize (description and title field are localised), and I suspect that globalized could be the culprit here... Everything works fine, except for the update action. I get the following error message: (posting just the first lines, all the message is about attribute_methods) stack level too deep /Library/Ruby/Gems/1.8/gems/activerecord-2.3.2/lib/active_record/attribute_methods.rb:64:in `generated_methods?' /Library/Ruby/Gems/1.8/gems/activerecord-2.3.2/lib/active_record/attribute_methods.rb:241:in `method_missing' /Library/Ruby/Gems/1.8/gems/activerecord-2.3.2/lib/active_record/attribute_methods.rb:249:in `method_missing' For referenze, the full error stack is here: http://pastie.org/596546 I've tried to debug eliminating all the input fields, one by one, but I keep getting the error. fckeditor doesn't seem the culprit (error even without fckeditor) This is the action: def update params[:product][:term_ids] ||= [] @product = Product.find(params[:id]) respond_to do |format| if @product.update_attributes(params[:product]) flash[:notice] = t(:Product_was_successfully_updated) format.html { redirect_to products_path } format.xml { head :ok } else format.html { render :action => "edit" } format.xml { render :xml => @product.errors, :status => :unprocessable_entity } end end end As you see it's quite straightforward. Of course I am not hoping someone to solve this question straightaway, I'd just like to have a head up, a suggestion about where to look to solve this issue. Thanks in advance, Davide

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• CSS Background image in Redmine template arbitrarily not loading

  - by Pekka

  I`m in the process of building a template for Redmine (a project management system based on Ruby on Rails.) Ruby is running on a virtual server from a Bitnami.org installation package. The OS is Windows. The template essentially consists of a styles.css file. In that file, I have the following line: #header { padding: 0px; padding-top: 48px; background-color: #62DFFF; background-image: url(../images/bkg.jpg) background-position: center bottom; background-repeat: repeat-x; height:150px; } It's a header element with a background image. The problem: This background image arbitrarily appears and disappears when reloading. Say you reload ten times in twenty seconds; the image will appear in two instances, and be missing in the 18 others. I would have put this down to server problems, but the weird thing is that when it's missing, the request for the image doesn't appear in Firebug's net tab at all. Even if it were cached, the request should be there. Raw screenshots of the identical page on two reloads: I am 100% sure the CSS file does not change in between. I have examined both instances with Firebug and the CSS is identical. It happens in both Firefox and Chrome so it must be something basic I'm overlooking. What could be causing a browser not to load a resource at all? I have zero idea about Ruby nor Rails - getting Redmine running and customized is all I have ever had to do with this platform - so I don't really know where to look. Apache's, Mongrel's and Redmine's error logs look fine, though.

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• Delayed_job not executing the perform method but emptying the job queue

  - by James

  I have a fresh rails 3 app, here's my Gemfile: source 'http://rubygems.org' gem 'rails', '3.0.0' gem 'delayed_job' gem 'sqlite3-ruby', :require = 'sqlite3' Here's the class that represents the job that I want to queue: class Me < Struct.new(:something) def perform puts "Hello from me" logger.info "Hello from me" logger.debug "Hello from me" raise Exception.new end end From the console with no workers running: irb(main):002:0> Delayed::Job.enqueue Me.new(1) => #<Delayed::Backend::ActiveRecord::Job id: 7, priority: 0, attempts: 0, handler: "--- !ruby/struct:Me \nsomething: 1\n", last_error: nil, run_at: "2010-12-29 07:24:11", locked_at: nil, failed_at: nil, locked_by: nil, created_at: "2010-12-29 07:24:11", updated_at: "2010-12-29 07:24:11"> Like I mentioned: there are no workers running: irb(main):003:0> Delayed::Job.all => [#<Delayed::Backend::ActiveRecord::Job id: 7, priority: 0, attempts: 0, handler: "--- !ruby/struct:Me \nsomething: 1\n", last_error: nil, run_at: "2010-12-29 07:24:11", locked_at: nil, failed_at: nil, locked_by: nil, created_at: "2010-12-29 07:24:11", updated_at: "2010-12-29 07:24:11">] I start a worker with script/delayed_job run The queue gets emptied: irb(main):006:0> Delayed::Job.all => [] However, nothing happens as a result of the puts, nothing is logged from the logger calls, and no exception is raised. I'd appreciate any help / insight or anything to try.

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• Rails original release source code

  - by user547057

  Hi, I've been looking to read some ruby code(specifically Rails) but I don't want to start with the current version of Rails since it has a lot of stuff I don't need and even more stuff that I wouldn't probably understand. I want to read only the core of Rails and supposedly the early versions were small and kind of easy to wrap one's head around(even for a neophyte like me). I have tried searching for the original release of rails, but have not been able to find it. The github repo consists of thousands of commits and I don't want to wade through those. What I want is to know whether there is any place I can get a zip or tar file with the original rails source or even the other early versions. Pointers to links will be very much appreciated. Thanks. p.s I'm new to ruby programming but not programming in general(I know a little python and scheme) and I understand blocks, lambdas and OO stuff, so I think I can tackle the rails source code. If anyone knows of other ruby projects that make for good code reading, i'd love to know of those too.

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• Rails Heroku Gemfile.lock error - push rejected (open source)

  - by KJ50

  I am trying to push my open source RoR application to Heroku but I'm having an issue making the initial push. I have read many similar questions, but none of those answers has helped to solve my problem. I have tried bundle update and bundle install various times. I also have tried removing and then re-committing my Gemfile.lock file, however I get this same error still... $ git push heroku master Counting objects: 5199, done. Compressing objects: 100% (3086/3086), done. Writing objects: 100% (5199/5199), 4.57 MiB | 131 KiB/s, done. Total 5199 (delta 3418), reused 3152 (delta 1962) -----> Removing .DS_Store files -----> Ruby app detected -----> Compiling Ruby/NoLockfile ! ! Gemfile.lock required. Please check it in. ! ! Push rejected, failed to compile Ruby app To [email protected]:frozen-springs-4725.git ! [remote rejected] master -> master (pre-receive hook declined) error: failed to push some refs to '[email protected]:frozen-springs-4725.git' Since my application uses MongoDB with MongoMapper, I suspect that I have some configuration incorrect. My code can be found here on Github (I'm currently working on the heroku branch). Feel free to clone our repository and try it yourself. If anyone has any insight which could help me resolve this issue I would be very thankful!

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• Rails requires Rubygems but I have the gems

  - by fogonthedowns

  Update I notice that which ruby and whereis ruby are different locations which ruby /opt/local/bin/ruby whereis ruby /usr/bin/ruby I recently upgraded ruby to ruby 1.8.7 (2009-06-12 patchlevel 174) [i686-darwin10] and I think I broke rails. When I attempt to load rails. I get an odd message. Please help! $ ruby script/server Rails requires RubyGems = 1.3.2. Please install RubyGems and try again: http://rubygems.rubyforge.org $ rails -v Rails 3.0.0.beta $ gem -v 1.3.6 $ which gem /usr/bin/gem $ whereis gem /usr/bin/gem $ which rails /usr/bin/rails $ whereis rails /usr/bin/rails $ /usr/bin/gem -v 1.3.6 $ /usr/bin/rails -v Rails 3.0.0.beta $ ruby script/console Rails requires RubyGems >= 1.3.2. Please install RubyGems and try again: http://rubygems.rubyforge.org $ gem list rails *** LOCAL GEMS *** rails (3.0.0.beta, 2.3.5, 2.2.2, 1.2.6) $ gem list *** LOCAL GEMS *** abstract (1.0.0) actionmailer (3.0.0.beta, 2.3.5, 2.2.2, 1.3.6) actionpack (3.0.0.beta, 2.3.5, 2.2.2, 1.13.6) actionwebservice (1.2.6) activemerchant (1.4.1) activemodel (3.0.0.beta) activerecord (3.0.0.beta, 2.3.5, 2.2.2, 1.15.6) activerecord-tableless (0.1.0) activeresource (3.0.0.beta, 2.3.5, 2.2.2) activesupport (3.0.0.beta, 2.3.5, 2.2.2, 1.4.4) acts_as_ferret (0.4.3) arel (0.2.pre) authlogic (2.1.3) builder (2.1.2) bundler (0.9.3) calendar_date_select (1.15) capistrano (2.5.2) cgi_multipart_eof_fix (2.5.0) chronic (0.2.3) columnize (0.3.1) compass (0.8.17) daemons (1.0.10) dnssd (0.6.0) erubis (2.6.5) fastercsv (1.5.0) fastthread (1.0.1) fcgi (0.8.7) ferret (0.11.6) flay (1.4.0) flog (2.4.0) gbarcode (0.98.16) gem_plugin (0.2.3) git (1.2.5) haml (2.2.15) haml-edge (2.3.100) highline (1.5.0) hoe (2.4.0) hpricot (0.6.164) i18n (0.3.3) javan-whenever (0.3.7) jeweler (1.4.0) jscruggs-metric_fu (1.1.5) json_pure (1.2.0) libxml-ruby (1.1.2) linecache (0.43) mail (2.1.2) mechanize (0.9.3) memcache-client (1.7.8) mime-types (1.16) mislav-will_paginate (2.3.11) mocha (0.9.7) mojombo-chronic (0.3.0) mongrel (1.1.5) needle (1.3.0) net-scp (1.0.1) net-sftp (2.0.1, 1.1.1) net-ssh (2.0.4, 1.1.4) net-ssh-gateway (1.0.0) nifty-generators (0.3.0) nokogiri (1.4.0) openrain-action_mailer_tls (1.1.3) passenger (2.2.5) polyglot (0.2.9) prawn (0.6.3) prawn-core (0.6.3) prawn-format (0.2.3) prawn-layout (0.3.2) prawn-security (0.1.1) rack (1.1.0, 1.0.1) rack-mount (0.4.5) rack-test (0.5.3) rails (3.0.0.beta, 2.3.5, 2.2.2, 1.2.6) railties (3.0.0.beta) rake (0.8.7, 0.8.3) rake-compiler (0.6.0) RedCloth (4.1.1) reek (1.2.6) relevance-rcov (0.9.2.1) rmagick (2.12.2) roodi (2.1.0) rsl-stringex (1.0.3) rspec (1.2.9) rspec-rails (1.2.9) ruby-debug (0.10.3) ruby-debug-base (0.10.3) ruby-openid (2.1.2) ruby-yadis (0.3.4) ruby2ruby (1.2.4) ruby_parser (2.0.4) rubyforge (2.0.3) rubygems-update (1.3.6, 1.3.5) rubynode (0.1.5) searchlogic (2.3.9) sexp_processor (3.0.3) spree (0.9.4) sqlite3-ruby (1.2.5, 1.2.4) termios (0.9.4) test-unit (2.0.5) text-format (1.0.0) text-hyphen (1.0.0) thor (0.13.0) tlsmail (0.0.1) topfunky-gruff (0.3.5) treetop (1.4.3) tzinfo (0.3.16) xmpp4r (0.4)

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• scalability with nginx, passenger, ruby on rails setup

  - by Dani Cela

  Hey guys I had a question regarding scalability for my RoR application. We have been optimizing our application over the last few days and after running blitz.io, notice that our application times out after maybe 1000 hits in 30 seconds we experienced massive timeouts. In the 1 minute test apparently 74% of users would have timed out. Look at the performance of my website: http://blitz.io/report/1c8eb2f395a5eadeabd62fd831ada9e5 Not saying that our website will in any way experience this now, but I wish to design the infrastructure to handle this. What is normally done in this situation? Currently we have one web server and one database server. Would load balancing be the route to go?

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