Recent questions tagged ruby

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ruby - How do you spawn an EventMachine "inside" a Rails app?

I've got a Rails application, and am looking to add some sort of WebSocket support to it. From various ... for. Any help 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 - Eager loading: The right way to do things

I am running Ruby on Rails 3.1. I read the following articles and documentations about eager loading and ... interpolate" comments to articles? 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 - Gems/Services for autoscaling Heroku's dynos and workers

I want to know if there are any good solutions for autoscaling dynos AND workers on Heroku in a production ... Rails3? 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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ruby on rails - Repairing postgresql after upgrade to OSX Mavericks

A recent upgrade to OSX Mavericks has broken my database connection for my Rails app. When I try to fetch from ... but I'm not certain. 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 prepend classmethods

This question directly relates to this one. But I tried to break it down to the base problem and I didn't ... change in order to work properly? See Question&Answers more detail:os...

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

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736 views

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ruby on rails - Direct downloading a xls file without writing it to the directory by Spreadsheet gem

I am using this Spreadsheet gem to export xls file. I have the following codes in my controller: def export ... the server side) 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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ruby - Where can I store site-wide variables in Rails 4?

I am new to Rails and come from a ColdFusion background, where we would store global / site-wide variables in ... elegant solution for Rails 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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421 views

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ruby - Getting the highest value of a column in MongoDB

I've been for some help on getting the highest value on a column for a mongo document. I can sort it and ... getting the top/bottom? 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 - Rails app: Solr throwing RSolr::Error::Http - 404 Not Found when executing search

Very lost as I haven't made any changes to my search which has always been working but somehow I've got a break. Being ... 20 Nov 3, 2013 10:15:34 PM org.apache.solr.handler.co...

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

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ruby - How to share variables across my .rb files?

I have a few .rb files and I want to use the same variables in all of them. Let's say variable ... test_variable' for main:Object (NameError). See Question&Answers more detail:os...

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

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532 views

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ruby on rails - Handling namespace models (classes) in namespace

I am using Ruby on Rails 3 and I would like to handle models (classes) namespaces within namespaces. That ... namespaces using Ruby on Rails? See Question&Answers more detail:os...

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

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550 views

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ruby on rails - Force strings to UTF-8 from any encoding

In my rails app I'm working with RSS feeds from all around the world, and some feeds have links that are not ... encoding and convert to UTF-8? 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 filter parameters in rails?

Rails has built in log filtering so you don't log passwords and credit cards. Works great for that but when you ... or custom (non-rails) log? 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

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ruby on rails - will_paginate undefined method `total_pages'

What am I missing here? I am using the haml_scaffold generator and the pages work fine with will_paginate. When I start ... : {} => 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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475 views

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ruby - Is there a Rails Console command (Rails 3+) to reload changed code?

I am playing with the console, I change some model code and now I want to test it. I normally re-start ... command to reload the model code? See Question&Answers more detail:os...

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

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787 views

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ruby on rails - Embedding JSON Data into YAML file

I am writing a fixture for my table. And a one of the coloums takes in a JSON string as a value. The problem ... '..... Any solutions to 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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585 views

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ruby on rails - Restart Unicorn issue (capistrano)

I've got following settings in deploy.rb to restart my server: namespace :deploy do task :restart do run ... processes or database settings). See Question&Answers more detail:os...

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

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557 views

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ruby - error to installing sass with gem in windows 8.1

I'm installing ruby in windows 8.1 pro ruby 2.1.3p242 (2014-09-19 revision 47630) [x64- ... method `invoke_with_build_args' for nil:NilClass 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 - Validating Password using Regex

I am working on a Rails 3 application that needs to validate the password based on the following criteria: ... all help is greatly 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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1.1k views

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ruby on rails - Radio buttons for boolean field, how to do a "false"?

I am currently trying to insert some simple true/false radio buttons in Rails 3, but I can't find a way ... it correctly? Thanks in advance Arne See Question&Answers more detail:os...

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

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657 views

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ruby on rails - What is the purpose of vendor/bundle? Heroku tells me to remove it

Upon pushing some changes to Heroku, I noticed a warning about vendor/bundle (see WARNING below). What is the purpose of ... i18n (0.6.0) ... See Question&Answers more detail:os...

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

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934 views

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ruby - rspec: How to stub an instance method called by constructor?

class A def initialize @x = do_something end def do_something 42 end end How can I stub do_something in rspec ... the implementation, of course. See Question&Answers more detail:os...

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

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466 views

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ruby on rails - Best practice method of displaying flash messages

I'm wondering what's the best practice for displaying flash messages. The two main ways I've seen are using ... use the flash hash? 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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475 views

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ruby - In-place progress output in the terminal or console

When you run git clone, it updates progress in place. For example, the percentage of the objects received changes ... lines of output in-place? See Question&Answers more detail:os...

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

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490 views

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ruby on rails - rake assets:precompile RAILS_ENV=production not working as required

I am trying to precompile assets using the command rake assets:precompile RAILS_ENV=production, but I always get the ... could be wrong? 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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689 views

1 answer

ruby on rails - Destroy on blank nested attribute

I would like to destroy a nested model if its attributes are blanked out in the form for the parent model - ... Is there a way around 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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749 views

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ruby on rails - Rendering partial with locals in Haml?

I am learning Haml. My view files are like: show.html.haml: .content = render 'meeting_info', :locals => { ... variable or method 'info' 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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682 views

1 answer

ruby - Full url for an image-path in Rails 3

I have an Image, which contains carrierwave uploads: Image.find(:first).image.url #=> "/uploads/image/4d90/ ... a full url in Rails3? See Question&Answers more detail:os...

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

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