Recent questions tagged Ruby

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ruby on rails - Undefined namespace prefix in Nokogiri and XPath

I am trying to parse Youtube Gdata to see if video with given id exists. But there isn't ... namespace prefix: openSearch:totalResults See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ruby - Editing Existing Rails Migrations is a good idea?

When starting out a new project, there are lot of changes in models that I find it easy to edit an ... case(development stage,working solo)? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ruby on rails - Form_for "First argument in form cannot contain nil or be empty" error

I cannot figure out why I'm getting this error, and exactly what it means. First argument in form cannot ... update end def destroy end end See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ruby on rails - nokogiri - ERROR: Failed to build gem native extension

I updated to the developer release of Lion and noticed I couldn't start rails apps anymore. Whenever I try to sudo ... ' from /usr/bin/bundle:19 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ruby on rails - Can't install gems because "undefined method `invoke_with_build_args' for nil:NilClass"

I'm on the Ruby track and I'm in the installation process of Ruby on Rails. I'm trying to install gems but ... I can't use. Thanks in advance. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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478 views

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ruby on rails - Add space after commas only if it doesn't already?

Is there a way to add a space after commas in a string only if it doesn't exist. Example: word word, ... be fast (performance would matter). See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ruby on rails - SASS variables not parsing correctly - Undefined variable: "$ct-white"

I am using SASS for the first time, and my variables seem to have stopped working. I have the following ... parsed correctly. Any ideas why? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ruby - What do I need to do to get the blog to work in rails 4.2?

I have just installed rails 4.2 . I have found this tutorial for making a quick blog: https://www.reinteractive ... any tutorials for rails 4.2? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ruby - Rails Typhoeus Curl Trouble

I'm scratching my head on this error since similar errors refer to instances of compiling libcurl from source ... or commentary is appreciated. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ruby on rails - actionmailer "from" setting

I am using ActionMailer and in my mailer model, I have a from set like this default :from => "[email protected]" In my ... , :password => '===' } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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471 views

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ruby - Rails 3.1 - has_and_belongs_to_many deprecated?

I've got an application currently Rails 3.0.9, with a very simple many to many relationship: class User < ... code to be good to go. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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347 views

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ruby on rails - Sass::SyntaxError: File to import not found or unreadable: compass in production

I'm using SASS + Compass and controller specific stylesheets, so in my application.html.erb I set: <%= stylesheet_link_tag ... strategy.rb:186:in `call!' [GEM_ROOT]/gems/omniauth-1...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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685 views

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ruby on rails - Install sqlite3 on mac osx?

I just bought a new MBP I've read online Sqlite3 already exists on OSX. I've downloaded mac ports (and installed ... I am so lost! Please help See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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533 views

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ruby - Rails 3.2 `link_to` (in email) with `method: :put` still producing GET request

In my app I have automated e-mails reminding applications to complete the next step in the interview ... .:format) worker/applications#show See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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410 views

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ruby on rails - javascript_include_tag throws unsupported method

I recently created a new project with Rails 4.2.0 and created a controller called Land for the landing page. So, I ... error? Or is it a bug? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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604 views

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ruby - bundle install issue with libv8 and rails

I'm having issues with the libv8 gem with ruby 1.9.3p0 (2011-10-30 revision 33570) [x86_64-darwin10.8.0]. gem ... If so, how do I solve it? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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424 views

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ruby - windows: rails: error installing bson_ext

when trying to install bson_ext i see the error...installing json gem works fine which also requires building native ... json-1.8.1... See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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592 views

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ruby - Interpretation as a local variable overrides method name?

As in this question, when a local variable not defined is used within its own assignment, it is evaluated to nil. x = ... {keys = keys} # => nil See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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454 views

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ruby - Converting a hash into a nested hash

This question is the inverse of this question. Given a hash that has an array for each key like { [:a, :b, :c] => 1, [ ... e => 3, }, :f => 4, } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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523 views

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ruby on rails - ERROR: relation "places" does not exist Heroku db import

I know this kind of error happens when having quotes or case sensitivity error in the query of postgres . Actually i' ... New York, NY 10016'); See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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436 views

1 answer

ruby - Why does array.each behavior depend on Array.new syntax?

I'm using Ruby 1.9.2-p290 and found: a = Array.new(2, []).each {|i| i.push("a")} => [["a ... it would use it the same way for both constructors. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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398 views

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ruby - How to improve jRuby load time?

I have to wait quite long time (comparing to my friends machines) for executing scripts on jRuby, especially when ... - ruby version manager)? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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664 views

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ruby on rails - WEBrick: RequestURITooLarge: should I update or use a different server?

I currently have: $ rails s => Booting WEBrick => Rails 3.0.9 application starting in development on http: ... a different web server? Thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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4.2k views

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ruby on rails 3.1 - (Object doesn't support #inspect)

I have a simple case, involving two model classes: class Game < ActiveRecord::Base has_many :snapshots def initialize(params ... and Ruby 1.9.2 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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530 views

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ruby - No such file or directory - git ls-files -- WINDOWS

I am trying to find a way to add Git to the Windows path. Whenever I try to run RakeFiles from either ... how to fix this with Windows? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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448 views

1 answer

ruby - How does require rubygems help find rubygem files?

While trying to solve Gem found in irb, not in Ruby , I tried seeing what effect require 'rubygems' ... to find rubygem-installed libraries? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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562 views

1 answer

ruby on rails - Hacking ActiveRecord: add global named scope

I am trying to have a pack of very generic named scopes for ActiveRecord models like this one: module ... actual table_name at Scopes module? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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406 views

1 answer

ruby on rails - ControllerMacros cannot be seen in RSpec

I have a Rails app and I am trying to test it. I use devise to log in. However, I faced a problem that ... I fix this? What is the problem? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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