Recent questions tagged Ruby

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ruby on rails - ActiveRecord date format

I've run into a spot of bother with date formats in our Rails application. I have a date field in our ... to expect Her Majesties date format? See Question&Answers more detail:os...

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

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789 views

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ruby on rails - has_many while respecting build strategy in factory_girl

Situation # Models class User < ActiveRecord::Base has_many :items end class Items < ActiveRecord::Base ... respecting the build strategy? See Question&Answers more detail:os...

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

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788 views

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ruby on rails - Installing RVM on Ubuntu

I've got a strange error when I try to run this rvm install script (newly installed ubuntu 11.10): bash ... with $rvm_ prefix, I checked. 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 - What's the difference between "includes" and "joins" in ActiveRecord query?

What's the difference between "includes" and "joins" in ActiveRecord query? Can anyone explain to me with the ... :owner has_one :car 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 - Treating nil as zero in sum function

I have a Seller model that has_many Items. I want to get the total sale price of all of a Seller's items. ... can I treat nil values as zeros? See Question&Answers more detail:os...

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

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885 views

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ruby on rails - Howto use callbacks in a has_many through association?

I have a Task model associated to a Project model via has_many through and need to manipulate the data before ... , :through => :project_tasks See Question&Answers more detail:os...

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

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645 views

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ruby on rails - What's wrong with "magic"?

I'm trying to decide whether to use a Rails or a Django guru to create a web app for me. I've been ... there an inherent problem with "magic"? See Question&Answers more detail:os...

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

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711 views

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ruby - Route Handlers Inside a Class

I have a Sinatra app setup where most of the logic is performed inside of various classes, and the ... on the SinatraApplication object. 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 - Establish a connection to another database only in a block?

In a rails application, I have this code in pure ruby : class LinkCreator attr_accessor :animal def initialize( ... very bad for performance. 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 - Starting background tasks with Capistrano

For my RubyOnRails-App I have to start a background job at the end of Capistrano deployment. For this, I tried ... 8, Ubuntu Hardy on the Server 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 - Can't install thrift gem on OS X El Capitan

Trying to install thift gem after OSX El Capitan upgrade: $ gem install thrift Building native extensions. This ... ,-Wshift-negative-value] 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 - ActiveRecord select except columns

Is there a way I can specify to select ALL columns in ActiveRecord except just a few. For example, for ... manually hardcode all columns? 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 - Heroku font assets not working

Placed fonts in app/assets/fonts Added Add the fonts path config.assets.paths << Rails.root.join('app', ... fonts with Rails asset pipeline 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 - How to get attributes that were defined through attr_reader or attr_accessor

Suppose I have a class A class A attr_accessor :x, :y def initialize(x,y) @x, @y = x, y end end How can I get ... ,10) a.attributes # => [5, 10] See Question&Answers more detail:os...

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

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870 views

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ruby on rails - AWS::S3::S3Object.url_for - How to do this with the new AWS SDK Gem?

I've been using this forever with paperclip and aws-s3: def authenticated_url(style = nil, expires_in = 90.minutes) ... the new AWS-SDK gem? See Question&Answers more detail:os...

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

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832 views

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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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749 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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712 views

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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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740 views

1 answer

ruby on rails 3.1 - Assets not being run though the .erb preprocessor

I am having trouble trying to rake assets:precompile in my rails 3.1 app. I keep getting the following error: ... css.scss.erb. 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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692 views

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ruby on rails 3 - link_to syntax with rails3 (link_to_remote) and basic javascript not working in a rails3 app?

i am wondering if the basic link_to syntax is completely broken in current rails3 master or if i am doing ... amazonaws.com/index.html 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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847 views

1 answer

ruby - Rails routes: Wrong singular for resources

I have the following line in my routes.rb (Rails 4.1.4): resources :request_caches However, when I run rake ... So, what am I 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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914 views

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ruby on rails - Same Model for Two belongs_to Associations migration

How do I create a migration for a model that has two references to the same model. I have a user model with two ... and get it to 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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821 views

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ruby on rails - Deploying a Re-Written Github/Heroku App

I have an app that is live on Heroku/Github, but recently completely rebuilt it from scratch - I want to keep ... live code with the new 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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755 views

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ruby - Capistrano 3 change ssh_options inside task

I trying to run capistrano v.3 task in same stage with diferent ssh_options. my production.rb say: set : ... /or ssh_options it inside task? See Question&Answers more detail:os...

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

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717 views

1 answer

ruby - Symbol#to_proc with custom methods

I like how in Ruby you can pass methods as blocks like so using Symbol#to_proc: [1.0, 2.0, 3.0].map ... undefined method `t_three' for 1:FixNum 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 - How can I alter this regex to get the Youtube video id from a Youtube URL that doesn't specify the v parameter?

At the moment I'm using this regex to extract the video id from a Youtube URL: url.match(/v=([^&]*)/)[1] How ... . EDIT: I'm using ruby 1.8.7 See Question&Answers more detail:os...

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

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904 views

1 answer

ruby on rails - JWT token decoding even when the last character of the signature is changed

I was just trying out JWT tokens on a rails app, using this jwt library: https://github.com/jwt/ruby-jwt ... am I doing something wrong here? See Question&Answers more detail:os...

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

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966 views

1 answer

ruby on rails - gon is not defined error in javascript

pretty simple question. I'm trying to use gon. I set the variable in the controller like this: gon.preference = ... is just not working! 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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