Recent questions tagged ruby

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ruby on rails - Google plus API shutdown today, which alternative can be used to authentication?

I am using rails-4, and have used OAuth-2 for authentication with Google+ API, for which the following gems ... provide an alternative to this. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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689 views

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ruby - Chrome 62 and Flash

I have a Flash-based app that I need to test using Cucumber. As flash is not enabled by default I need ... > Has anyone automated this process? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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676 views

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ruby on rails - Omniauth: callback not firing, returns failure with "invalid credentials"

The facebook authentication in my Rails application, implemented with the Omniauth gem has stopped working ... with Google authorization. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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648 views

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ruby - Returning all maximum or minimum values that can be multiple

Enumerable#max_by and Enumerable#min_by return one of the relevant elements (presumably the first one) when there are multiple ... to get this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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827 views

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ruby - How do I test a function with gets.chomp in it?

I have a simple function using gets.chomp like this: def welcome_user puts "Welcome! What would you like to do ... user inputs using just ruby? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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631 views

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ruby - How do I avoid trailing empty items being removed when splitting strings?

I am doing: "b::::c:::".split(':') Result: ["b", "", "", "", "c", "", ""] # expect ["b" ... is the problem here? how can i get what i expected. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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573 views

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ruby - Parsing a date that can be in several formats in python

I would like to parse a date that can come in several formats, that I know beforehand. If I could not parse, ... I do the same thing in Python? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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519 views

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ruby - Shortcut to make case/switch return a value

I'm pretty sure I saw someone do a shortcut technique like the code below (which doesn't work) return case guess ... the trick I'm referring to? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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545 views

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ruby - How to match something with regex that is not between two special characters?

I have a string like this: a b c a b " a b " b a " a " How do I match every a that is not part ... to remain in the string. I'm using Ruby. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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655 views

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ruby - Read and write YAML files without destroying anchors and aliases?

I need to open a YAML file with aliases used inside it: defaults: &defaults foo: bar zip: button node: ... -looking playing field in reality. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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586 views

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ruby - Set UTF-8 as default string encoding in Heroku

I need to change the default ruby string encoding to UTF-8 in Heroku. For some reason it is US-ASCII. $ heroku ... "UTF-8" Ideas? Thanks, Felipe See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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790 views

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ruby on rails - Unable to install MySQL2 gem on Windows 7

I am getting the following error message while installing, let me know if I need to post more details. I followed ... 4/ext/mysql2/ge m_make.out See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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692 views

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ruby on rails - Incompatible library version: nokogiri.bundle requires version 11.0.0 or later, but libxml2.2.dylib

I'm getting this error when trying to run rspec in Hartl's tutorial. I googled the error, but it's never for ... lib/bundler.rb:132:in `require' See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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486 views

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ruby - Sort order in `Dir.entries`

Is there a fixed/default sort order in which Dir.entries returns results? I know by experience that the first two entries are "." and "..". See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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678 views

1 answer

ruby on rails - Getting a "bad interpreter" error when using brew

I'm getting this error when I try to run any brew command. Holger-Sindbaeks-MacBook-Air:~ holgersindbaek$ brew ... a long time without answer. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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567 views

1 answer

ruby on rails - Can't install pg gem on Mountain Lion

I have been having a lot of troubles with Rails after upgrading to Mountain Lion. Trying to trouble shoot these ... it fails at pg installation. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.4k views

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ruby on rails - ActionController::ParameterMissing (param is missing or the value is empty: film):

So, I'm getting the following error when trying to visit the films page on my app: ActionController:: ... :active, :trackable)} end See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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616 views

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ruby on rails - How to skip a before_filter for Devise's SessionsController?

I have a before_filter in my ApplicationController; that is, for every controller in my project. How can ... SessionsController create action ? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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678 views

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ruby on rails - Configuring Warden for use in RSpec controller specs

I was able to use Devise's sign_in method to log in a user in my controller specs. But now that I'm ... any guidance that anyone could provide. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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632 views

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ruby on rails - Stop Devise from clearing session

It seems when a user logs out via standard Devise controllers, Devise destroys the entire session store, not just its own ... [:my_var] # => nil See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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579 views

1 answer

ruby on rails - Creating a PostgreSQL sequence to a field (which is not the ID of the record)

I am working on a Ruby on Rails app. We are using a PostgreSQL database. There is a table named scores with ... How do I create this sequence? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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531 views

1 answer

ruby - Rails: Skinny Controller vs. Fat Model, or should I make my Controller Anorexic?

I know similar questions have been answered before - such as: Where should logic go where to do certain tasks, ... in the question really well. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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528 views

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ruby - XPath axis, get all following nodes until

I have the following example of HTML:  <h2>Foo bar</h2> <p>lorem</p> <p>ipsum</p> ... a way to do this that I'm missing? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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453 views

1 answer

ruby - Why should we avoid using class variables @@ in rails?

Why should we avoid using class variables @@ in rails? Is there any security loopholes with that. Please answer ... class variables @@ in rails? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

1 answer

ruby - How do I pretty-print HTML with Nokogiri?

I wrote a web crawler in Ruby and I'm using Nokogiri::HTML to parse the page. I need to print the page ... and properly formatted when I do so. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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855 views

1 answer

ruby on rails - Counter Cache for a column with conditions?

I am new to the concept of counter caching and with some astronomical load times on one of my app's main pages ... so as to minimize load times? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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582 views

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ruby - Rails installation failed on Ubuntu with "cannot load such file -- mkmf"

I have this problem while installing Rails on Ubuntu 11: root@salah:/home/salah/rubygems-1.8.15# sudo gem ... .1/ext/mysql_api/gem_make.out See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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421 views

1 answer

ruby on rails - Validation failed: Upload file has an extension that does not match its contents

I am using paperclip gem to upload files. and my paperclip gem version is paperclip-4.1.1. While ... type discovered from file command: See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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