Recent questions tagged Ruby

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ruby on rails - How do I tell paperclip to not save the original file?

How do I tell Paperclip not to save the original file when it is uploaded? Or even better, to store a scaled ... of the file as the original? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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973 views

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ruby on rails - Add I18n translations to rspec tests

How can i add a translation test to my specs ? Something like : flash[:error].should == I18n.translate 'error. ... i get a certain error back. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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760 views

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ruby on rails - How to install json gem - Failed to build gem native extension(mac 10.10)

OS: Mac OS X 10.10.3 XCode: Latest with command line tools installed (version 6.3) Rails: version 4.2.1 ... Error 1 make failed, exit code 2 See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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420 views

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ruby - typing 'rails console' doesn't start?

I typed this: >rails console and got this: Usage: rails new APP_PATH [options] Options: [--skip-gemfile] # Don' ... I have rails 3.0 installed. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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485 views

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ruby on rails - ActionCable.server.broadcast from the console

I can use the following code in the controller but not in the console (both development environment). I'm using ... I use it in the console? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ruby `encode': "xC3" from ASCII-8BIT to UTF-8 (Encoding::UndefinedConversionError)

Hannibal episodes in tvdb have weird characters in them. For example: ?uf So ruby spits out: ./manifesto. ... Manually running it creates error. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ruby - What is the difference between `Range#include?` and `Range#cover?`?

Edit Fixed following toro2k's comment. Range#include? and Range#cover? seem to be different as seen in the source ... What is their difference? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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359 views

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ruby on rails - What is a JSON octet and why are two required?

I have incoming data, which I store in a variable messages: connection = ContextIO::Connection.new(key, secret) ... have two octets? Thanks! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ruby on rails - Errno::ECONNREFUSED: Connection refused - connect(2) for action mailer

I have been working with rails since a long. Now I am facing a small issue in the ActionMailer. I want to ... . Can anybody help me please? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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583 views

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ruby - How do I set HTTP_REFERER when testing in Rails?

I'm trying to test a controller and I got this error. I understand the error, but don't know how to fix it. ... that's how you set the headers. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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ruby - Can't run sudo pod install after updating to cocoapods 0.32.1 with error "You cannot run CocoaPods as root. (CLAide::Help)"

I found an issue when running sudo pod install command after updating it to latest version 0.32.1. Earlier ... very helpful. Thanks in advance. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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466 views

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ruby on rails - ActiveRecord order by external array

I have an array of ids, stored in some external storage (rails cache or redis). In controller's action I ... to use with pagination. Thanks. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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413 views

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ruby - Find and replace HTML tags

I have the following HTML: <html> <body> <h1>Foo</h1> <p>The quick brown fox.</p> <h1>Bar</h1> <p> ... HTML tags? I can use the Nokogiri gem. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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712 views

1 answer

ruby on rails - ActionView::Template::Error (incompatible character encodings: UTF-8 and ASCII-8BIT)

I am using Ruby 1.9.2, Rails 3.0.4/3.0.5 and Phusion Passenger 3.0.3/3.0.4. My templates are written ... same error and how did you solve it? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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751 views

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ruby on rails - Adding custom parameters to devise registration - unpermitted parameters

I've been trying to customize the devise register method to register with more parameters and also update ... , :password_confirmation) end See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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367 views

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ruby - How to enable C extension support in jRuby?

I want to install a gem but I get the following error: Building native extensions. This could take a while.. ... me with my beginner problem? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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716 views

1 answer

ruby on rails - link_to delete url is not working

I have the following link_to delete url in my app <%=link_to "Delete",blog_path(@blog.id), :method => :delete, ... me how to fix this. Thanks. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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503 views

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ruby on rails - How to remove unit test and replace it with rspec?

I have a rails app, that is setup with the default test unit, how can I remove it and use rspec instead? ... t ignore it during app generation). See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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558 views

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ruby on rails - ActiveRecord: How can I clone nested associations?

I'm currently cloning a single-level association like this: class Survey < ActiveRecord::Base def duplicate ... s stop matching correctly. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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626 views

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ruby on rails - what is the difference between link_to, redirect_to, and render?

I am confused about the main difference(s) among link_to, redirect_to and render in Rails. anyone can please explain. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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485 views

1 answer

ruby on rails - How to prevent Nokogiri from adding <DOCTYPE> tags?

I noticed something strange using Nokogiri recently. All of the HTML I had been parsing had been given start and end < ... </div></body></html> See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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537 views

1 answer

ruby on rails - Paperclip image url

Stupid question? <img alt="Phone_large" src="/system/photos/1/small/phone_large.jpg?1238845838" /> Why is "? ... my path/url without it? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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334 views

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ruby on rails - Rspec/Capybara loading in progress, circular require considered harmful

Unsure if this is a Capybara issue, but I just did a fresh install of Rails (4.1.1) and Rspec Rails ... : assigned but unused variable - a See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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352 views

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ruby on rails - Distinct on Postgresql JSON data column

Trying to do distinct on a mode with rails. 2.1.1 :450 > u.profiles.select("profiles.*").distinct Profile ... in this case. Any work arounds? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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362 views

1 answer

ruby - Why can't a variable name end with `?` while a method name can?

A method name can end with a question mark ? def has_completed? return count > 10 end but a variable ... end if user_is_using_console ... end See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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362 views

1 answer

ruby on rails - Use custom route upon model validation failure

I've just added a contact form to my Rails application so that site visitors can send me a message. The ... ' end end Thanks in advance. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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409 views

1 answer

ruby - Rails 3 and RJS

I use the rails 3.0.0.beta Is there any new syntax to write RJS, here is an example def remote_create @photo = ... } else #... end end end See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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519 views

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ruby on rails - Specify custom primary key in migration

I have a data structure: t.integer :userID t.string :apikey t.integer :characterID The userID should be the primary ... to achieve what I want? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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