Recent questions tagged ruby

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I have a relationship like so: Parent has_many :children Child belongs_to :parent What I want to do is to ... way to prevent this recursion? See Question&Answers more detail:os...

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

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736 views

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ruby on rails - undefined method `model_name' for Project:Class

I've looked through all the related questions but nothing's new for me here. I have a Project controller with "new" action ... ><br /> <% 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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850 views

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ruby - Escape single quote in XPath with Nokogiri?

I have an XPath query that looks like this, with both single and double quotes. How do I escape the apostrophe properly ... ()='Frank's car']" See Question&Answers more detail:os...

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

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554 views

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ruby - Convert (decode) hexadecimal string to binary string

How can I convert "1234567890" to "x12x34x56x78x90" in Ruby? See Question&Answers more detail:os...

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

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495 views

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ruby on rails - Convert ActiveRecord habtm query to Arel

I have a pretty common habtm relationship: Photo has_and_belongs_to_many :tags Tag has_and_belongs_to_many :photos In my ... do this correctly? See Question&Answers more detail:os...

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

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414 views

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ruby - Travis reports odd message of corrupted Gemfile.lock

Im using bundler to install stuff and since I have added Gemfile.lock, travis started to complain with: Your Gemfile.lock is ... eg. 1.8.3. ?? See Question&Answers more detail:os...

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

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564 views

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ruby on rails - Country expected, got String error

I have 2 models "Country" and "League", Country has many Leagues and League belongs to Country. When adding a ... %>. What is going 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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440 views

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ruby on rails - Where should my non-model/non-controller code live?

I've written a rails app that follows the regular directory structure (model code in models, controller code in ... this one of those cases? See Question&Answers more detail:os...

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

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539 views

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ruby - 3 Equals or Case Equality operator

In Ruby Integer === 5 returns true. Similarly String === "karthik" returns true. However, 5 === Integer ... Why is the operator not commutative? 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

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ruby on rails - How do I declare a string with both single and double quotes in YAML?

I'm internationalizing an application and cannot figure out how to declare a translation string that contains both ... and single quotes though? See Question&Answers more detail:os...

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

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764 views

1 answer

ruby on rails - how can I hide params I transmit to a method (like form_for seems to do)?

I've been searching for hours now and haven't found anything that helps. What I want to do: I need to call ... way to do pass the data hidden. See Question&Answers more detail:os...

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

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412 views

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ruby - Deleting a modified object from a set in a no-op?

See the example below require "set" s = [[1, 2], [3, 4]].to_set # s = {[1, 2], [3, 4]} m = s. ... 1, 2]] which is expected.) Is this a bug? See Question&Answers more detail:os...

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

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859 views

1 answer

ruby - How to work with leading zeros in integers

What is the proper way to deal with leading zeros in Ruby? 0112.to_s => "74" 0112.to_i => 74 Why ... (n) n.to_s.reverse.to_i 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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486 views

1 answer

ruby on rails - Intersection of two relations

Say I have two relations that hold records in the same model, such as: @companies1 = Company.where(...) ... companies that exist within both? See Question&Answers more detail:os...

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

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596 views

1 answer

ruby on rails 3 - Kill localhost:3000 process from Windows command line

So im using ruby on rails in windows (i hear you all spitting your coffee onto the screen), its only a ... is not listed as a running 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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655 views

1 answer

ruby on rails - Adding custom HTTP headers to nginx X-Accel-Redirect

I am serving restricted downloads in rails using X-Accel-Redirect with nginx. To validate my downloads in client ... help is much 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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786 views

1 answer

ruby on rails - How to set SameSite attribute to 'None; Secure' in Rails3.1.12 and Ruby1.9.3

A cookie associated with a cross-site resource at https://example.com/ was set without the SameSite attribute. ... attribute. 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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506 views

1 answer

ruby on rails - Sorting UTF-8 strings in RoR

I am trying to figure out a 'proper' way of sorting UTF-8 strings in Ruby on Rails. In my application, I ... way that I could sort my strings? See Question&Answers more detail:os...

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

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864 views

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ruby - Missing host to link to! Please provide the :host parameter, for Rails 4

Missing host to link to! Please provide the :host parameter, set default_url_options[:host], or set :only_path to ... is for the datatables gem. See Question&Answers more detail:os...

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

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494 views

1 answer

ruby - How to extract the code from a Proc object?

Given a Proc object, is it possible to look at the code inside it? For example: p = Proc.new{test = ... object that has already been created. See Question&Answers more detail:os...

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

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598 views

1 answer

ruby - Rails date format in form field

I'd like my dates in the mm/dd/year format in text fields. However, they currently displays as 2010-03-26. Is ... default => '%m/%d/%Y') 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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695 views

1 answer

ruby on rails - Testing Views that use Devise with RSpec

I am trying to get a previously passing rspec "view spec" to pass after adding Devise's user_signed_in? method ... be very similar. 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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493 views

1 answer

ruby - rspec failing error: expected false to respond to `false?`

I am running this portion of a test: describe Dictionary do before do @d = Dictionary.new end it 'can check ... my code. Thank you tons. See Question&Answers more detail:os...

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

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383 views

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ruby on rails - RubyMine 3.0 setup on Windows 7

All, I downloaded/installed 1.9.2 windows installer, and then RubyMine3.0RC, and installed it. Opening a new ... console. 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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434 views

1 answer

ruby - Rails 4 nested attributes not saving

I cannot seem to get nested attributes to save to the database. I am using Rails 4. Here are my models : class Answer < ... %> </div> <% 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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544 views

1 answer

ruby - xpath expression for regex-like matching?

I want to search div id in an html doc with certain pattern. I want to match this pattern in regex: foo_ ... (Nokogiri::XML::XPath::SyntaxError) See Question&Answers more detail:os...

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

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422 views

1 answer

ruby on rails - Hiding my sensitive information (e.g. password) from github

I just set up Devise (rails authentication plugin) to send a confirmation email upon sign up. This involved ... there a standard practice here? See Question&Answers more detail:os...

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

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503 views

1 answer

ruby on rails - "uninitialized constant Sass::Script (NameError)"

I had first to change my Gemfile from (I deleted the comments to make the text shorter): source 'https:/ ... the gems available on this machine. See Question&Answers more detail:os...

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

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