Recent questions tagged Ruby

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ruby - Using Nokogiri to Split Content on BR tags

I have a snippet of code im trying to parse with nokogiri that looks like this: <td class="j"> <a ... any direction is appreciated! thank you 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 - `-': nil can't be coerced into Fixnum (TypeError)

In my program Im getting an error which says ./ruby_camping.rb:91:in `-': nil can't be coerced into Fixnum ... still is nil? Thankful for 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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ruby - Match sequences of consecutive characters in a string

I have the string "111221" and want to match all sets of consecutive equal integers: ["111", "22", "1" ... and I'm terrible at Googling. 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 - undefined method `default_scoped?' while accessing scope

I am getting this error while accessing scopes. Here is AR model class StatisticVariable < ActiveRecord::Base ... and fix this 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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ruby - Bundler - load multiple Gemfiles

Just curious if there is an easy way to load more than one Gemfile from a Ruby application. If you're ( ... , but it's definitely inelegant. 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 - How to script the java debugger command-line tool (jdb)?

How can I drive the debugging session with some scripting language like ruby? Is there any easier options than ... with a scripting language? 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 - How might I simulate a private browsing experience in Watir? (Selenium)

Watir is a Selenium-based black-box testing tool that can automate tasks on the browser. I would like to ... in private browsing mode. 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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ruby on rails - Installing pg -v 0.17.1

I'm using/I want to use Postgresql as database, but when I type "bundle install" or "bundle update ... before bundling. Any suggestions? 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 - Error using PHPStorm's SASS File Watcher

I'm getting the following error whenever PHPStorm attempts to convert my SASS file to CSS using the file ... project settings: Any ideas? 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 3.2 - save_and_open_page (capybara / launchy) stopped working in a project - error

Trying to debug a section of specs that I cannot get to work when merging Rails two projects. I have deleted my Gemfile. ... 'pg', '0.12.2' 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 - OAuth::Problem (parameter_absent)

Im working with OAuth 0.3.6 and the linkedin gem for a Rails application and I have this issue where OAuth ... appreciate some help on this. 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 - Optimization for finding perfect-square algorithm

The question I'm working on is: Find which sum of squared factors are a perfect square given a specific range. So if ... , 2500], [246, 84100]] 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 - Carrierwave Upload with Amazon S3 - 403 Forbidden Error

I am attempting to use Carrierwave with Amazon S3 in my Rails app, and I keep getting the error "Excon::Errors:: ... How can I fix this error?? 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 - geocoding api not responding fast enough for IP address

In my production server I've used the Geocoder gem. But, the following code not working in the server console. ... seconds. What should i do? 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 - How do I count vowels?

I've seen the solution and it more or less matches Write a method that takes a string and returns the number of vowels ... ("cecilia") == 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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ruby on rails - How do I get the rendered output of a controller's action without visiting the web page?

As part of the deployment process for our rails 2.3 app, I'd like to save static versions of our error pages to ... 's a simpler way to do 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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ruby on rails - RoR: Cannot change_column in postgres, fine in MySQL (MySQL for development, Postgres on Heroku)

I had a column called "prize": create_table :contests do |t| t.text :prize I recently realized that ... very much appreciated. Thanks! Ringo See Question&Answers more detail:os...

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

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1.2k views

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ruby on rails - Rspec email_spec issue

I am going through this User Authentication tutorial.. http://larsgebhardt.de/user-authentication-with-ruby-on-rails-rspec- ... and Rspec 3.1.7. 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 - Inverse of `Module#singleton_class`

What is the inverse of Module#singleton_class? I.e., given a singleton class, how can I get the module it is the singleton of? See Question&Answers more detail:os...

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

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991 views

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ruby on rails - Show ajax based elements after form submit error

I have two select elements in my form, Category and Sub-category. At first, only the category select is shown. ... Can anyone help me, please? 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 - How to Submit Polymorphic Comments on Feed? [Error]

If a user clicks the [+ Comment] button he is confronted with this evil beast: ActiveRecord::RecordNotFound in ... .rb:61:in `load_commentable' See Question&Answers more detail:os...

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

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1.1k views

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ruby - Why does this Nokogiri XPath have a null return?

I'm XPath-ing through a web page with NOKOGIRI. I'm familiar with XPath, but I cannot figure out why my ... doc.xpath(@xpath).empty?().to_s 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 - searchkick - Autocomplete with multiple attributes

Autocomplete works ok when searching with a single attribute as given here. Autocomplete with multiple attributes such ... data being returned? 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 - Why word 'translate' is messing irb?

I don't understand why my method translate undefines start_with? method and is messing something in irb, so I can ... don't see any relation. See Question&Answers more detail:os...

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

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1.6k views

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ruby on rails - Pundit policy_scope error: undefined method `admin?' for nil:NilClass

Running into something I don't understand with Pundit, Using Rails 4.2.5.1, Pundit 1.1.0 with Devise ... end end Any pointers much 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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1.3k views

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ruby on rails - How to have Ajax spinner show on specific page?

I'm having issues showing my ajax spinner. Right now I am testing this on my localhost:3000/test with the ... when switching to another link? See Question&Answers more detail:os...

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

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1.0k views

1 answer

ruby on rails - Can't verify(check) paypal account

I need to verify PayPal account, when user sign_up. I have function(source - http://curry.byteally.com/finding- ... what I'm doing wrong ? See Question&Answers more detail:os...

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

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1.1k views

1 answer

ruby on rails - ActiveRecord validates... custom field name

I would like to fix up some error messages my site generates. Here is the problem: class Brand < ActiveRecord:: ... to change the whole thing). See Question&Answers more detail:os...

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

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