Recent questions tagged Ruby

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ruby on rails - validate at least one in has_and_belongs_to_many

I have a model with: has_and_belongs_to_many :users How do I validate that the model has at least one user in the ... give me what I want... See Question&Answers more detail:os...

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

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984 views

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ruby - Update RVM list known

Is it possible to update the list of known rubies (what you get with rvm list known) without upgrading the entirety of rvm? See Question&Answers more detail:os...

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

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839 views

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ruby on rails - Getting "Unknown primary key for table" while the ID is there

I've been debugging this strange problem of Rails giving me "Unknown primary key for table...", even when the ... why this might happen? 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 - Calendar Events Notification not received on server

I'm trying to watch google calendar events. I have written this code: def watch_calendar_event result = @client. ... render status: 200 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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951 views

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ruby on rails - Installing Puma on Windows error

Tried installing Puma on Windows and getting this error - Temporarily enhancing PATH to include DevKit... Building ... Anyone able to 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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839 views

1 answer

ruby - how to serialize an object using TCPServer inside?

In an effort to speed up frequently repeated runs of a particular script in my chain, I started serializing to disk ... object if I have to. See Question&Answers more detail:os...

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

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726 views

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ruby on rails - Updated CSS Stylesheet not loaded following deployment to Heroku?

This has been a problem for me for a while now, but I still can't figure out how the asset pipeline works ... can do to make them appear there. See Question&Answers more detail:os...

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

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883 views

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ruby - how to make ID a random 8 digit alphanumeric in rails?

This is something I am using inside my model This is the URL that gets posted to another 3rd party website through API ... via: :get, as: :post See Question&Answers more detail:os...

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

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722 views

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ruby - dynamic_matchers.rb:55:in `method_missing': undefined method `migration_error=' for ActiveRecord::Base:Class (NoMethodError)

I'm on Windows. Ruby v.1.9.3p392 / Rails v. 3.2.13 - This is the demo_app project from the 2nd chapter of ... ? mapping : [mapping] end 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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887 views

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ruby on rails - Where should I store methods to make them available both to my application and to RSpec?

I need to create some methods that are available both to my application (models, views and controllers) and to ... logic of those path helpers. See Question&Answers more detail:os...

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

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927 views

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ruby on rails - Can't run bundle update on Windows

Whenever I run bundle update or bundle install on Windows 8.1 I can't update/install gems from github. I ... it and make bundle install work? 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 - Where should I store methods to make them available both to my application and to RSpec?

I need to create some methods that are available both to my application (models, views and controllers) and to ... logic of those path helpers. See Question&Answers more detail:os...

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

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916 views

1 answer

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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849 views

1 answer

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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794 views

1 answer

ruby - issue deploying rails 5 application to AWS using Elastic Beanstalk due to rb-readline

I am trying to deploy my code to AWS using elastic beanstalk but keep running into errors when deploying. I added a gem ... % of CPU is in use. See Question&Answers more detail:os...

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

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759 views

1 answer

ruby on rails 4 - Trying to update 640k rows in mySQL gets "Lost connection to MySQL server during query"

I'm trying to execute this line from my seeds.rb file: ActiveRecord::Base.connection.execute("UPDATE bairros ... Could anyone please help me? See Question&Answers more detail:os...

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

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867 views

1 answer

ruby on rails - InvalidAuthenticityToken errors in mobile

I have read multiple questions and answers here on StackOverflow about InvalidAuthenticityToken and protect_from_forgery ... : 1471608669086 See Question&Answers more detail:os...

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

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944 views

1 answer

ruby - Rails FasterCSV "unquoted fields do not allow or "

I'm having an issue with FasterCSV and my rake db:seeds migration. I get the error: "rake aborted! Unquoted ... text and integers. 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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1.1k views

1 answer

ruby on rails - Nokogiri: Searching for <div> using XPath

I use Nokogiri (Rubygem) css search to look for certain <div> inside my html. It looks like Nokogiri's css search ... the <p> inside the div 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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940 views

1 answer

ruby on rails - How do I textile and sanitize html?

Now i ran into some stupid situation. I want the users to be able to use textile, but they shouldn't mess ... this problem. 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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841 views

1 answer

ruby on rails - Postgres - the last version 0.14.0 of the "pg" gem gives error

I have updated my bundler which contains pg gem and I got the error An error occured while installing pg (0.14 ... " Anyone with the same issue? See Question&Answers more detail:os...

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

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850 views

1 answer

ruby - How can I access the current node from a library in a Chef cookbook?

I'm attempting to write a library for a chef cookbook that simplifies some common searches. For example, I'd like ... Module Using Chef 10.16.4. See Question&Answers more detail:os...

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

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945 views

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ruby - How to get long filename from ARGV

I want to make a tool that takes some filenames as parameters, but when I use this code: ARGV.each do|a| puts ... use drag and drop or send to? See Question&Answers more detail:os...

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

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822 views

1 answer

ruby - Save all image files from a website

I'm creating a small app for myself where I run a Ruby script and save all of the images off of my blog. ... ").each do |item| #something 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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750 views

1 answer

ruby - Is there a way to stop Rails' built-in server from listening on 0.0.0.0 by default?

I do a lot of web development on untrusted networks (coffeeshops, the neighbors' open wifi, DEF CON), and I get ... 127.0.0.1 by default? See Question&Answers more detail:os...

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

0 votes

984 views

1 answer

ruby on rails - Fixing "You have included the Google Maps API multiple times on this page. This may cause unexpected errors."

I've included two below scripts in my header and I get the error "You have included the Google Maps API ... two scripts in my rails app? See Question&Answers more detail:os...

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

0 votes

782 views

1 answer

ruby 1.9.2 - collection_select method gives error in Rails 3.1.1

I have a Model called Category and other Model Product. They have has_many and belongs_to relation. But code in my ... what is wrong with 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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943 views

1 answer

ruby on rails - How to build task 'db:populate'

1 namespace :db do 2 desc "Fill database with sample videos" 3 task :populate => :environment do 4 require 'faker' ... Ruby. I am using Rails 3. See Question&Answers more detail:os...

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

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