Recent questions tagged ruby

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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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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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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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790 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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784 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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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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917 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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642 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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548 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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832 views

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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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1.2k views

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ruby on rails - Simple_form adding class to form

I am using simple_form in my Rails application, I tried to add form-horizontal class to my form. <form accept- ... I do to keep new_order class? See Question&Answers more detail:os...

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

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892 views

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ruby on rails - Rspec: Controller specs for 2 level nested resources

my routes.rb namespace :magazine do resources :pages do resources :articles do resources :comments end end end ... =>"magazine/comments"} 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 on rails - Installing Mysql 2 gem fails

I am trying to install mysql2 (version 0.4.5) and I am using Rails 5.0.2, Ruby 2.3.1 I've already installed ... 2 How can I get the job done?. See Question&Answers more detail:os...

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

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987 views

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ruby - Rails 5 db migration: how to fix ActiveRecord::ConcurrentMigrationError

A previous rake db:rollback stalled. Now when attempting a new migration we get the following error: rake aborted ... ) We are using Postresql 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 on rails - Can I include blank field in select_tag?

Is it possible to add an option like :include_blank => 'Please Select' in a method select_tag like it is ... for this for select_tag method? 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 - How do I avoid the circular argument reference warning in activesupport

How do I avoid the circular argument reference warning in activesupport. Happens on ruby 2.2.0 /home/ec2-user/ ... at line 266 ignored: 4095 See Question&Answers more detail:os...

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

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844 views

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ruby - Rails how to sum columns?

Example I have: @test = Pakke.find([[4], [5]]) In my Pakke table I have a column named prismd How ... values for the prismd columns for @test? 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 - How to change the default value of a Struct attribute?

According to the documentation unset attributes of Struct are set to nil: unset parameters default to nil. Is it ... of true in void context See Question&Answers more detail:os...

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

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844 views

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ruby - Error when run migrations on Heroku, PostgreSQL with Rails 5

I deploy Rails 5 with PostgreSQL to free app in Heroku. This is my configuration from database.yml: production: adapter: ... ? How to fix 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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914 views

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ruby on rails 3 - Has_many, through association

Warning:Total Rails Newb (TRN). This should be a pretty basic question so I'm hoping someone can spare a couple ... = Group.new group.user.new See Question&Answers more detail:os...

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

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804 views

1 answer

ruby - no such file to load -- sqlite3/sqlite3_native

I am having trouble trying to run the following ruby script on OSX (Leopard). require 'sqlite3' database = SQLite3:: ... sqlite3-ruby (1.3.3) See Question&Answers more detail:os...

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

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702 views

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ruby - Rails Form Object with Virtus: has_many association

I am having a tough time figuring out how to make a form_object that creates multiple associated objects for a ... here. 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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696 views

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ruby - How to use chef to update-alternatives for java using execute?

I am having syntax errors and I am unsure how to resolve them. In the roles file I have defined the fallowing: ... ']['home']}/bi... See Question&Answers more detail:os...

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

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766 views

1 answer

ruby on rails - Which browser support REST completely. Means Get,Post,PUT and DELETE method?

Which browser support REST completely? Means Get,Post,PUT and DELETE method? I understood the rails way to understand ... am I thinking 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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675 views

1 answer

ruby on rails - How do I do reflexive self-join relationships in ActiveRecord?

I'm trying to implement a social networking style friendship model and I didnt have much much luck trying to ... :name t.string :description See Question&Answers more detail:os...

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

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828 views

1 answer

ruby on rails - MetaSearch "undefined method `model_name' for NilClass:Class" for global bar search

I'm using fantastic MetaSearch by Ernie, but I'm having an annoying issue. In my application.html.erb I have an ... search_submit' %> <% 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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918 views

1 answer

ruby - How to model a mutual friendship in Rails

I know this question has been asked before on Stack Overflow, but the answers aren't doing it for me in ways I ... search for friend_id = b.id? See Question&Answers more detail:os...

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

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