Recent questions tagged Ruby

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ruby - Rack::Request - how do I get all headers?

The title is pretty self-explanatory. Is there any way to get the headers (except for Rack::Request.env[])? See Question&Answers more detail:os...

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

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431 views

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ruby - Difference between resource and resources in rails routing?

what is the difference between resource and resources in rails routing resource :geocoder and resources :posts ... difference between them ? See Question&Answers more detail:os...

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

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488 views

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ruby - How do I check the Database type in a Rails Migration?

I have the following migration and I want to be able to check if the current database related to the environment ... :users, :email_hash end 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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385 views

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ruby on rails - get list of state_machine states

We are using state_machine ( https://github.com/pluginaweek/state_machine ) in a project and would like to offer ... of text somewhere. 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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364 views

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ruby - Get all instance variables declared in class

Please help me get all instance variables declared in a class the same way instance_methods shows me all methods available ... me @ab @ac... See Question&Answers more detail:os...

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

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680 views

1 answer

ruby - How to access attributes using Nokogiri

I have a simple task of accessing the values of some attributes. This is a simple script that uses Nokogiri:: ... puts would cause this 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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622 views

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ruby - Check if a constant is already defined

This is a simple one, I hope. How do I check, in the following example, if a constant is already ... 1 uninitialized constant CONST (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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527 views

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ruby on rails - Send emails from AWS EC2 instance (SES mandatory?)

I write this post just to see if I can get some clarifications regarding email sending concepts in an AWS EC2 ... any email client or 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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405 views

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ruby on rails - Worker "dyno" in AWS Elastic Beanstalk

Amazon Web Service has now a worker tiers in their Elastic Beanstalk. But, it nevertheless confuse us who come from ... help us in this matter. See Question&Answers more detail:os...

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

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510 views

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ruby on rails - How to reset Heroku Rails4 asset pipeline cache

According to Heroku documentation: Heroku now caches 50mb worth of tmp/cache/assets which is a cache directory for ... because of the cache. See Question&Answers more detail:os...

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

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454 views

1 answer

ruby - complicated graphviz tree structure

I am trying to create a tree structure with graphviz. I am open to either writing ... =1lUTfgKP_LN0x7C3ItbsFjfLBuDTL84AtmoaW7YFn32Y&w=1036&h=713 See Question&Answers more detail:os...

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

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415 views

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ruby - How to get indexes of all occurrences of a pattern in a string

string = "Jack and Jill went up the hill to fetch a pail of water. Jack fell down and broke his crown ... pattern and their indices (positions)? 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 - Rails Carrierwave Base64 image upload

What is the best way to upload an image from a client to a Rails backend using Carrierwave. Right now our ... I deal with them in carrierwave? See Question&Answers more detail:os...

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

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345 views

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ruby - Sinatra configuring environments on the fly

I have successfull written a little Sinatra application and already successfully deployed it on heroku. However I want ... ' from config.ru: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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582 views

1 answer

ruby on rails - How to skip has_secure_password validations

In my app, only admins can create new User records. The user is emailed an activation link where they set their ... the others I've added? See Question&Answers more detail:os...

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

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538 views

1 answer

ruby - How to use gems not in a Gemfile when working with bundler?

When using bundler with a project in general and Rails specifically, you have access only to gems defined in your ... require 'fivemat' => true See Question&Answers more detail:os...

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

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505 views

1 answer

ruby on rails - Heroku how to redirect http:// to http://www

How do I redirect http://vinderhimlen.dk to http://www.vinderhimlen.dk ? See Question&Answers more detail:os...

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

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1.3k views

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ruby on rails - Devise redirect back to the original location after sign in or sign up?

Here I'm using Devise Gem for authentication. If someone want to open page without login then it redirect to ... this page after signed in. See Question&Answers more detail:os...

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

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623 views

1 answer

ruby - rails - Pass id parameter on a link_to

I'm trying to pass the parameter of the current page(id) to the next page so I can create a dependent model entry. ... come I can't pass the 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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467 views

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ruby - how to customize rails activerecord validation error message to show attribute value

When a user tries to create a record with a name that already exists, I want to show an error message like: ... the value of the name attribute See Question&Answers more detail:os...

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

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409 views

1 answer

ruby on rails - How to write an RSpec test for a simple PUT update?

I'm trying to solidify my understanding of rails and the BDD workflow, so I wanted to start small by creating one of ... if I'm wrong - thanks! See Question&Answers more detail:os...

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

0 votes

511 views

1 answer

ruby on rails - Add http(s) to URL if it's not there?

I'm using this regex in my model to validate an URL submitted by the user. I don't want to force ... experience with validation and regex.. See Question&Answers more detail:os...

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

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375 views

1 answer

ruby - Sum the value of array in hash

This is my array [{:amount=>10, :gl_acct_id=>1, :alt_amount=>20}, {:amount=>20, :gl_acct_id=>2 , :alt_amount=> ... or {:amount = 30} 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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388 views

1 answer

ruby - How do I remove a node with Nokogiri?

How can I remove <img> tags using Nokogiri? I have the following code but it wont work: # str = '<img src=" ... do |node| node.remove end puts f See Question&Answers more detail:os...

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

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540 views

1 answer

ruby - Get sidekiq to execute a job immediately

At the moment, I have a sidekiq job like this: class SyncUser include Sidekiq::Worker def perform(user_id) ... to execute the job immediately? 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

1 answer

ruby on rails - attr_accessor default values

I'm using rails and I want to make it so that attr_accessor :politics is set, by default, to false. Does anyone ... it in simple terms for me? See Question&Answers more detail:os...

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

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311 views

1 answer

ruby on rails - URL design for an API

I'm working on a private apis for our backend. I have collections that have associations. Each collection can be ... url schemes ? 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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448 views

1 answer

ruby - How to format this international phone number in Rails?

If I have an international phone number such as this: 0541754301 how can I format it to produce something like this: 0541-754-301 See Question&Answers more detail:os...

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

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