gem

问题 I have a clean build system as follows Ubuntu 11.04 Rvm 1.13.5 Ruby 1.9.3p194 Rails 3.2.3 Gem 1.8.24 MySql 5.5.24-1 (installed in /usr/local) I am trying to install the mysql2 gem (0.3.11) and getting the following problem: pal@smurf01:~$ sudo gem install mysql2 [sudo] password for pal: Building native extensions. This could take a while... ERROR: Error installing mysql2: ERROR: Failed to build gem native extension. /usr/local/rvm/rubies/ruby-1.9.3-p194/bin/ruby extconf.rb checking for rb

问题 After update to Maveriks having problems installing gem autotest-fsevent Here is the error I get; Mellon:public lasdolphin$ sudo gem install autotest-fsevent Building native extensions. This could take a while... ERROR: Error installing autotest-fsevent: ERROR: Failed to build gem native extension. /Users/lasdolphin/.rvm/rubies/ruby-1.9.3-p448/bin/ruby extconf.rb extconf.rb:24:in `<main>': Darwin 13 is not (yet) supported (RuntimeError) Gem files will remain installed in /Users/lasdolphin/

问题 After update to Maveriks having problems installing gem autotest-fsevent Here is the error I get; Mellon:public lasdolphin$ sudo gem install autotest-fsevent Building native extensions. This could take a while... ERROR: Error installing autotest-fsevent: ERROR: Failed to build gem native extension. /Users/lasdolphin/.rvm/rubies/ruby-1.9.3-p448/bin/ruby extconf.rb extconf.rb:24:in `<main>': Darwin 13 is not (yet) supported (RuntimeError) Gem files will remain installed in /Users/lasdolphin/

问题 I have a javascript file I use for my javascript app that I would like to read in and parse with ruby. The content of this file is not a stringified JSON, rather a javascript parsed JSON data structure. I.E. if my ruby code is require 'rubygems' require 'json' file = File.open("testing.js", 'r') json = file.readlines.to_s hash = JSON.parse(json) my testing.js is { color:"blue" } which will fail if I try to read it in... JSON::ParserError: 751: unexpected token at '{ color:"blue" }' if will

问题 How to handle gem version mis-matches? Mongoid 4.0.0 (latest) uses moped (2.0.0) which requires bson 2.3 Mongo 1.10.2 (latest) uses bson 1.10.2 I can't use mongoid 4.0.0 and mongo 1.10.2 together, but I could in the past, when mongoid uses bson 1.x. Does anyone know how I can continue forward using both mongo and mongoid? -daniel Links: https://rubygems.org/gems/mongoid https://rubygems.org/gems/moped https://rubygems.org/gems/mongo 回答1: The latest unstable version 2.x (under heavy

问题 On my server searching is fast but on my local machine gem searches are slow. Can I do something for speed up my gem searches? 回答1: The solution from Doc Snuggles really works. But it should be notice that your gem command maybe living in a gemset, that is: rvm info | grep gem will tell you where the gem script lives. Then edit it and add the magic line before any other require : require 'resolv-replace' 回答2: Maybe you could try this: In gem (mine’s at /usr/local/bin/gem), add this line

问题 I was wondering whether the following use case can be achieved using the papertrail gem? A Wikipedia-type of application with wiki pages that logged in users can change/edit and where: Moderators can undo specific changes: I understand papertrail allows to roll back to a previous version but what I’m asking here is somewhat different. That is, the ability to undo a specific edit/change . Suppose there have been three edits/versions to a record/wiki-page. Then if you want to undo edit 2, then

问题 I'm trying to install Publify web blog CMS 6.0.9 for Ruby on Rails 3.1 on Windows. Every time I try to bundle install Publify, I get the same error message when installing the bluecloth gem: C:\Users\Lunasea\Downloads\typo-6.0.9>gem install bluecloth Temporarily enhancing PATH to include DevKit... Building native extensions. This could take a while... ERROR: Error installing bluecloth: ERROR: Failed to build gem native extension. C:/RailsInstaller/Ruby1.9.2/bin/ruby.exe extconf.rb checking

问题 i use the ruby gem formatize to parse my markdown-formated text. now i want to embed a youtube-video into the markdown text, but whenever i add the iframe snippet, the gem (or markdown?) just removes it from the output. any advise? thanks! 回答1: You'll have to get formatize to ignore <iframe> tags. See this link. You can have markdown + HTML together so it sounds like it's an issue with the gem. Notice how the markdown syntax recommends that the older YouTube markup is embedded via direct HTML

问题 I have to create a report, and in order to do some colouring and tables, I decided on HTML. Is there any gem I could use to do this? I'd like to avoid having to write the tags myself. 回答1: You can take a look at Markaby which lets you generate HTML through a Ruby DSL. An example from the official docs: require 'markaby' mab = Markaby::Builder.new mab.html do head { title "Boats.com" } body do h1 "Boats.com has great deals" ul do li "$49 for a canoe" li "$39 for a raft" li "$29 for a huge boot