Recent questions tagged Ruby

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ruby on rails - Unable to stub helper method with rspec

I am trying to stub a method on a helper that is defined in my controller. For example: class ... already stubbed on a controller. 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 do I convert boolean values to integers?

I have a boolean value to check if it is true, then set a local variable. How do I refactor this so it is ... = 1 else inflection_point = 0 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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982 views

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ruby inside javascript block [slim template]

There is a way to put ruby conditions inside javascript block? i.e. javascript: var config = { ... maintain. Updated with better examples 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 - omniauth with facebook not working on production

i'm working with omniauth in my rails app, i have sign with facebook and twitter button, when i'm putting ... facebook button don't working... 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 - Using named_scope with counts of child models

I have a simple parent object having many children. I'm trying to figure out how to use a named scope for ... have the power of the named scope 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 - Regex match everything up to first period

Trying to get a lazy regex match of everything up until the first period of a sentence. e.g. Just want to ... to just match the first instance? 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 - Order array. undefined method `order' for Array. Convert array into hash?

I have a City model and in city's show action I want to render hotels nearby specific locations in ... different approach to perform sorting? See Question&Answers more detail:os...

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

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729 views

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ruby on rails - Passenger/mod_rails fails to initialize in Fedora 12 when starting Apache

I am in the process of setting up a server to run a Ruby on Rails application on Fedora 12, using ... help would be appreciated. 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 - Can you install documentation for existing gems?

Rubyinside mentioned a blog post on how to speed up gem installation by not installing RI or RDoc. Is it ... haste and RTFM at leisure? 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 sort_by twice

Ruby has a sort_by method on Enumerables. Fantastic! So you can do something like entries.sort_by { |l| l. ... were sorted by their time? See Question&Answers more detail:os...

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

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809 views

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ruby - how to append a string to a variable that either exists or not?

my solution is like if (not (defined?(@results).nil?)) @results += "run" else @results = "run" end but ... that there is something simpler ... 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 - Error when doing rake db:migrate on Heroku

when doing heroku run rake db:migrate all migrations are performed and then, at the end I always get following ... How to deal with 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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ruby - How do I validate a non-model form in Rails 3?

Let's say I have a search form and I want to validate the length of the keyword. I want the form to ... model_name' for Login:Class. 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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1.2k views

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ruby on rails - How to test a Select2 element with capybara DSL?

I have a Select2 element on a page that loads results via ajax. Would like to test this with capybara/rspec ( ... label, id, or name 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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980 views

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ruby on rails - Do fixtures trigger model callbacks?

Say I have a User model with the following code in User.rb: before_create :create_dependencies after_create : ... when loading fixtures? See Question&Answers more detail:os...

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

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894 views

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ruby - Why doesn't Rails' "errors.full_messages" replace attribute and message variables?

Having a strange problem with a rails model I just created. Here are my validations: validates_presence_of :from_name, : ... I will try 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 - how to add a primary key to a table in rails

Hi I have a table in my rails app that doesnt have any id column or primary key. thats because this table was ... appreciate a hand..... 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 - Rails 4 + Devise: Invalid route name, already in use

I'm following this how-to to modify the confirmation page after a successful sign up. https://github.com/ ... registrations => "registrations" } See Question&Answers more detail:os...

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

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810 views

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ruby - Consistent String#hash based only on the string's content

GOAL: Map every URL handled by a server to 0, 1, 2, or 3, distributing as uniformly as possible. While the ... it into one of four asset hosts? 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 - FriendlyID Korean slugs

When I add article in Korean language with title e.g.: ?? FriendlyID gem creates blank slug and url is like /8 . ... like /this-is-url from ?? ? 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 - has_many through association dependent destroy under condition of who called destroy

Is there a way to check, within a before_destroy hook, what object (class) called destroy? In the following example, ... .') false end 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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853 views

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ruby on rails - Capybara webkit invalid response error, how to debug?

I'm trying to write a request spec for a web page. This page works in development without error. But running ... from here? Thanks for any 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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982 views

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ruby - RMagick remove white background from image and make it transparent

I need to remove the white background from this image and make the background transparent. So it's just a black ... .g. Turn Into 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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863 views

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ruby on rails - Activeadmin formtastic dynamic select

I would like to make a dynamic select option via Activeadmin's formtastic like so: form do |f| f. ... has_many :students, through: :lessons See Question&Answers more detail:os...

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

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900 views

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ruby - Using Cookies with Rack::Test

I'm trying to write RSpec tests for my Sinatra application using Rack::Test. I can't understand how I can ... I send requests with that cookie? See Question&Answers more detail:os...

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

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849 views

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ruby on rails - Calculating difference in time between two Time objects

Let's say I create two time objects from my user model: created = u.created_at updated = u.updated_at How ... time using different time units. See Question&Answers more detail:os...

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

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1.5k views

1 answer

ruby on rails - Oauth2 Instagram API "redirect URI does not match registered redirect URI"

I am working on a Rails application which is in development mode and it can register with omniauth. The host is ... how should this be fixed? See Question&Answers more detail:os...

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

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638 views

1 answer

ruby on rails - Problem Signing Out with Devise on my App

I am in the process updating my app so I use the Devise gem for authentication. Everything appears to be working ... users", :action=>"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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