Recent questions tagged Ruby

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ruby - Rails server does not start by command "Rails s"

I'm new to ruby and rails and i installed rails in to the ubuntu. but when i go to the start ... the newly created application to get going See Question&Answers more detail:os...

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

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742 views

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ruby - Is SystemExit a special kind of Exception?

How does SystemExit behave differently from other Exceptions? I think I understand some of the reasoning about why it ... criteria does it 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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ruby - How can Bundler/Gemfile be configured to use different gem sources during development?

I have a Sinatra application that requires another gem I'm developing locally. I'm having trouble configuring ... workflow for this scenario? See Question&Answers more detail:os...

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

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637 views

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ruby on rails - Remove .xml extension from ActiveResource request

I am trying to use ActiveResource to consume xml data from a third party API. I can use the ... being generated by ActiveResource? 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 - Skip email validation in Devise

In Devise Validatable module contains validates_uniqueness_of :email, :allow_blank => true, :if => :email_changed? ... disable this validator? See Question&Answers more detail:os...

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

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731 views

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ruby - How to create a Rails 4 Concern that takes an argument

I have an ActiveRecord class called User. I'm trying to create a concern called Restrictable which takes in some ... I go about doing that? See Question&Answers more detail:os...

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

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723 views

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ruby on rails - Why aren't global (dollar-sign $) variables used?

I'm hacking around Rails for a year and half now, and I quite enjoy it! :) In rails, we make a ... it performance related? A security weakness? See Question&Answers more detail:os...

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

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897 views

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ruby on rails - Travis CI: FATAL: role does not exist

I'm trying to get my application working w/ Travis CI but I keep getting: FATAL: role "skateparks" does ... I've followed their documentation. See Question&Answers more detail:os...

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

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739 views

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ruby on rails - Could not find rake-10.0.3 in any of the sources

I successfully installed a Rails (3.2.10) app on an Ubuntu 12.04 server on Rackspace following Railscasts 335 ... ", "deploy:check_revision" 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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758 views

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ruby on rails - How can I force my plugin to reload with each request?

As I understand it, plugins are not reloaded in Rails with each request in development mode. Which makes sense ... your models and controllers? See Question&Answers more detail:os...

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

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947 views

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ruby on rails - Integer out of range in PostgreSQL database

I'm trying to save a number representing the length of a file (4825733517). The column is set to type integer. I don ... value? (on rails 4.2.4) See Question&Answers more detail:os...

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

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698 views

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ruby on rails - Why is my form_tag method a post when I am asking for a get?

My form_tag looks like: <%= form_tag(:controller => "users", :action => "confirm", :method => "get") %> the ... ="post"> Why is it doing 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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635 views

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ruby - Obtaining a Facebook auth token for a command-line (desktop) application

I am working for a charity which is promoting sign language, and they want to post a video to their FB ... line app to Facebook using OAuth? See Question&Answers more detail:os...

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

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852 views

1 answer

ruby - Rails 4.1 ActiveRecord::relation is no more like Array

in Rails 4.0.4 this code work: mailboxes = Mailbox.order(:mailbox) mailboxes.keep_if do |mailbox| # test ... information about that Any idea? See Question&Answers more detail:os...

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

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616 views

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ruby on rails - Psych::SyntaxError couldn't parse YAML

I am facing problem in rails application running on fedora 16 Rails version 2.3.5 and Ruby 1.9.2.p320 . The ... .1/benchmark.rb:310:in `realtime See Question&Answers more detail:os...

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

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744 views

1 answer

ruby - Is it ever necessary to use 'chomp' before using `to_i` or `to_f`?

I see people use the following code: gets.chomp.to_i or gets.chomp.to_f I don't understand why, when the result ... or is gets.to_i just enough? See Question&Answers more detail:os...

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

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775 views

1 answer

ruby - How to render file in Rails 5 API?

I have a single-page application written in React with Ruby on Rails back-end (API mode). ... AbstractController::Rendering without success. See Question&Answers more detail:os...

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

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629 views

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ruby on rails - Unicorn triggers mongoid error during assets precompile

I have a rails app using Mongoid 3 running on Heroku. I've just updated it to use Unicorn. When I try to ... any idea what's causing 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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803 views

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ruby on rails - Change the ActiveStorage Controller Path

Is there a way to customize the attachment urls so instead of /rails/active_storage/representations/ /rails/ ... / /custom_path/blobs/ See Question&Answers more detail:os...

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

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797 views

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ruby on rails - How to split routes.rb into smaller files

Is it possible to split Rails 3.X routes.rb file? We have so many resources it is difficult to find them. I ... APP and REST API routes. 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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780 views

1 answer

ruby on rails - Difference between form_for and form_tag?

I used this gem in my application, but I'm not sure the difference between the different implementation options ... what about the other two? See Question&Answers more detail:os...

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

0 votes

796 views

1 answer

ruby on rails - accepts_nested_attributes_for ignore blank values

i have class Profile has_many :favorite_books, :dependent => :destroy has_many :favorite_quotes, :dependent => : ... a silent deletion/ignore. See Question&Answers more detail:os...

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

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786 views

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ruby on rails - How do I add Honey pot fields to my forms?

I've been reading about adding Honey pot fields to my forms for combating bots/spam. Only problem is theirs no ... page use honey pot fields. 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 4.2 - No such file or directory @ rb_sysopen - public/receipts/416981.pdf

Below on line no. 2, I am getting this error: Errno::ENOENT in OrdersController#print def generate_receipt(filename = ... . Please help me out. 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

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ruby - skip/disable force_ssl for particular controller in rails

I need to force SSL on all routes in my application except for message#new controller. In config/environments/ ... a Rails 4+ application? See Question&Answers more detail:os...

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

0 votes

625 views

1 answer

ruby - Rails server does not start by command "Rails s"

I'm new to ruby and rails and i installed rails in to the ubuntu. but when i go to the start ... the newly created application to get going See Question&Answers more detail:os...

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

0 votes

837 views

1 answer

ruby - Is SystemExit a special kind of Exception?

How does SystemExit behave differently from other Exceptions? I think I understand some of the reasoning about why it ... criteria does it use?) See Question&Answers more detail:os...

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

0 votes

756 views

1 answer

ruby - How can Bundler/Gemfile be configured to use different gem sources during development?

I have a Sinatra application that requires another gem I'm developing locally. I'm having trouble configuring ... workflow for this scenario? See Question&Answers more detail:os...

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

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