Recent questions tagged ruby

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ruby on rails - View helper link_to in Model class

Using Rails 3, is there a way to use link_to helper, or any helper for that matter, inside model? See Question&Answers more detail:os...

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

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473 views

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ruby on rails - Examples of new, create actions for has_many :through associations (nested)

I found this code on http://guides.rubyonrails.org/association_basics.html#the-has_one-through-association: class ... the correct terminology. See Question&Answers more detail:os...

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

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710 views

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ruby on rails - Nokogiri: Select content between element A and B

What's the smartest way to have Nokogiri select all content between the start and the stop element ... (@start_element) puts @my_content See Question&Answers more detail:os...

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

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395 views

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ruby - Redis or Mongo for determining if a number falls within ranges?

I need a way to quickly check if an IP address falls into one of many forbidden IP ranges. I currently ... is more important than memory costs. See Question&Answers more detail:os...

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

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676 views

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ruby - Rails "undefined method for ActiveRecord_Associations_CollectionProxy"

I have this models: class Student < ActiveRecord::Base has_many :tickets has_many :movies, through: :tickets end class ... movie. How to write? See Question&Answers more detail:os...

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

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651 views

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ruby - Trouble installing pg gem

Trying to install the pg gem gives me errors. I'm using Ruby 1.9.3-p125 built using rbenv/ruby-build. I ... /pg-0.13.2/ext/gem_make.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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564 views

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ruby on rails - Indicate to an ajax process that the delayed job has completed

I have a Rails 3 app that uses delayed_job to fetch some data (with a class method) when the user hits ... status to the running ajax process. See Question&Answers more detail:os...

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

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673 views

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ruby - Rails: dynamic columns/attributes on models?

I have a SaaS application, where accounts want to save different types of information on a User model. So ... too many empty attributes. See Question&Answers more detail:os...

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

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572 views

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ruby - How to resolve Rails model namespace collision

The story so far: I have a rails app with a model named "Term". All is well until trying to install Cucumber ... Am I barking up the wrong tree? See Question&Answers more detail:os...

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

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1.8k views

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ruby on rails - Using Devise for Two Different Models but the same Login Form

I have seen lots of similar questions here but nothing that quite fits my need. I am a pretty experience rails ... way to go about 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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573 views

1 answer

ruby on rails - Getting offline_access to work with Facebook

I am using Facebooker with Rails to connect my application to Facebook. I can direct the user through the ... need not be rails specific. See Question&Answers more detail:os...

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

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798 views

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ruby on rails - Nested form in activeadmin not saving updates

I have a nested form in ActiveAdmin for these models (a :class_section has_many :class_dates): class ClassDate ... ClassDates using this form. See Question&Answers more detail:os...

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

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743 views

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ruby on rails 3 - How to use the link_to helper to open a popup?

I just want to use link_to to open a popup. I tried something but it doesn't work: <%= link_to 'Create a new ... %> <br/> Any idea? 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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442 views

1 answer

ruby on rails - Trying to use accepts_nested_attributes_for and has_and_belongs_to_many but the join table is not being populated

I am learning RoR and trying to use accepts_nested_attributes_for and has_and_belongs_to_many to submit information that would ... gone 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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493 views

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ruby - Is there a way Rails 3.0.x can default to using Thin?

I run the Thin webserver for basically every app in my dev/test environments. When I used Mongrel with Rails 2.x, ... s instead of rails s thin? See Question&Answers more detail:os...

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

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496 views

1 answer

ruby - How can I change the text color in the windows command prompt

I have a command line program, which outputs logging to the screen. I want error lines to show up in red. Is ... #{white}" print "other stuff" See Question&Answers more detail:os...

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

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609 views

1 answer

ruby on rails - What is Restful Routing?

I'm familiar with Ruby On Rails's routing system and well as how Code Igniter and PhpCake route things but is ... /action/id/ Admin/editUser/22 See Question&Answers more detail:os...

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

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579 views

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ruby on rails - How to avoid tons of commits when debugging Heroku app

While trying to sort out bugs with apps on Heroku, I usually end up with a bunch of Git commits related to ... main shared repo for the project? See Question&Answers more detail:os...

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

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549 views

1 answer

ruby on rails - Postgres error on Heroku with Resque

I don't know enough Postgres to understand the message. PG::Error: SSL error: decryption failed or bad record ... works perfectly. 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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705 views

1 answer

ruby - How to merge two hashes with no new keys

How could I merge two hashes that results in no new keys, meaning the merge would merge keys that ... current implementation is pretty messy. See Question&Answers more detail:os...

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

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727 views

1 answer

ruby - irb history not working

in ~/.irbrc i have these lines: require 'irb/ext/save-history' #History configuration IRB.conf[:SAVE_HISTORY] = ... nothing is logged to 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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924 views

1 answer

ruby on rails - Bundle install could not find compatible versions for gem "bundler"

When I type bundle install I got this error. I tried to find solution but nothing solve my case. Please help me ... 0.10, which depends 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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541 views

1 answer

ruby - Rails - Multiple top level domains and a single session/cookie

I've been struggling with this for quite awhile and haven't been able to find a solution. I need a user ... ]. Any 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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709 views

1 answer

ruby - rbenv irb history is not saving

I install ruby via rbenv-installer. When I use irb console, I can use history by pressing up and down on keyboard. ... I switch on it in rbenv? See Question&Answers more detail:os...

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

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2.2k views

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ruby - Error running '__rvm_make install'

I'm new to programming trying to add Ruby 2.2 using RVM and receiving the below error. I've run rvm ... make install. Halting the installation. See Question&Answers more detail:os...

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

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597 views

1 answer

ruby on rails - SessionsHelper in railstutorial.org: Should helpers be general-purpose modules for code not needed in views?

railstutorial.org has a suggestion which strikes me as a little odd. It suggests this code: class ApplicationController ... too much about 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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1.1k views

1 answer

ruby on rails - Docker: Is the server running on host "localhost" (::1) and accepting TCP/IP connections on port 5432?

I am getting issues while setup and run the docker instance on my local system with Ruby on Rail. Please see my ... am new to docker and AWS. See Question&Answers more detail:os...

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

0 votes

742 views

1 answer

ruby - Heroku Rails 4 could not connect to server: connection refused

Using postgres. Haven't been able to push. Tried this without any luck: config.assets.initialize_on_precompile = ... connections on port 5432? See Question&Answers more detail:os...

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

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