Recent questions tagged Ruby

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ruby - Rails - Best-Practice: How to create dependent has_one relations

What's the best practice to create has_one relations? For example, if I have a user model, and it must have ... very clean... Any suggestions? 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 - What is causing this ActiveRecord::ReadOnlyRecord error?

This follows this prior question, which was answered. I actually discovered I could remove a join from that ... much beyond the description. 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 - How can I delete one element from an array by value

I have an array of elements in Ruby [2,4,6,3,8] I need to remove elements with value 3 for example How do I do that? See Question&Answers more detail:os...

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

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509 views

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ruby on rails - Extending Devise SessionsController to authenticate using JSON

I am trying to build a rails API for an iphone app. Devise works fine for logins through the web interface but I ... , 'password' : 'foobar'}}" 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 - How to find a hash key containing a matching value

Given I have the below clients hash, is there a quick ruby way (without having to write a multi-line script) to ... =>{"client_id"=>"2181"} } 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 - How do RVM and rbenv actually work?

I am interested in how RVM and rbenv actually work. Obviously they swap between different versions of Ruby and ... be doing more than this. 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 - Is devise's token_authenticatable secure?

I'm building a simple api with Rails API, and want to make sure I'm on the right track here. I'm ... access without frequently forcing re-auth. See Question&Answers more detail:os...

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

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429 views

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ruby on rails - How to run a single RSpec test?

I have the following file: /spec/controllers/groups_controller_spec.rb What command in terminal do I use to run just ... 3 groups 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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ruby - Rails 3 datatypes?

Where can I find a list of data types that can be used in rails 3? (such as text, string, integer, float, ... a list I could easily refer to. 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 - Uninstall all installed gems, in OSX?

There are instances where I would like to revert and uninstall all previous gem installations. For instance, I needed ... on his OSX system? See Question&Answers more detail:os...

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

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587 views

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ruby - Creating draft via Google Gmail API

I am trying to create a draft message for a logged in user but keep getting the error Missing draft message when ... still no luck. Any ideas? See Question&Answers more detail:os...

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

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372 views

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ruby on rails - code push to heroku not working

I want to push code on heroku that is on gihub I used the following command git push heroku mybranch:master ... correct way to push on heroku See Question&Answers more detail:os...

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

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311 views

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ruby basic data type conversion

I got some weired problem while converting data type in ruby. Here are some of the outputs that i got in ... can get my expected output. 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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358 views

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ruby - Is there a 'variable_get' method? If not, how can I create my own?

courtesy of irb: 2.0.0-p0 :006 > @instance_variable = "from an instance variable" => "from an instance ... . Not some crazy workaround :) See Question&Answers more detail:os...

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

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433 views

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ruby - Is it possible to have class.property = x return something other than x?

Let's say I have a Ruby class: class MyClass def self.property return "someVal" end def self.property=( ... setter" operation return a value? See Question&Answers more detail:os...

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

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532 views

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ruby on rails - Rspec and capybara, difference between visit and get methods, with regards to the current_path object

I'm possibly confusing rack and capybara methods here let!(:admin){FactoryGirl.create(:admin)} # test passes ... order to keep it updated? See Question&Answers more detail:os...

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

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441 views

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ruby on rails - PG::Error in GROUP BY clause

I couldn't think of a better way to refactor the below code (see this question), though I know it's very ... the code to remove this 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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344 views

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ruby - What other languages have features and/or libraries similar to Perl's format?

I may be in the minority here, but I very much enjoy Perl's formats. I especially like being able to ... also curious about any other options. See Question&Answers more detail:os...

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

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300 views

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ruby - undefined symbol: SSLv2_method when running bundle install

I'm getting this error when running bundler to install my gems. I've looked around and find no solution ... ruby_noexec_wrapper:14:in `<main>' 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 - Test if variable matches any of several strings w/o long if-elsif chain, or case-when

I assume there is a nice one-line way to say in ruby if mystr == "abc" or "def " or "ghi" or ... online references I normally consult... 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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450 views

1 answer

ruby - Looping in a spiral outside-in

I'm looking to loop through a matrix similar to Looping in a spiral but looping outside-in, instead of inside-out. Can anyone ... , [1,1], [2,1] See Question&Answers more detail:os...

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

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512 views

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ruby on rails - heroku - Missing required arguments: aws_access_key_id, aws_secret_access_key, following Hartl tutorial

Running heroku run rake db:migrate, I get this error: Missing required arguments: aws_access_key_id, ... appreciated. 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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554 views

1 answer

ruby - How to use double brackets in a regular expression?

What do double square brackets mean in a regex? I am confused about the following examples: /[[^abc]]/ ... double brackets and single brackets. See Question&Answers more detail:os...

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

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507 views

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ruby on rails - database.yml &references not working

We just upgraded our virtual machines to what I thought was an identical ruby configuration (via RVM... Ruby 1.9 ... Nor does the database.yml. See Question&Answers more detail:os...

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

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317 views

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ruby - Method and variable name is the same

If both a method and a variable has the same name it will use the variable. hello = "hello from ... method instead without changing name? See Question&Answers more detail:os...

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

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478 views

1 answer

ruby on rails 4 - Is ActiveRecord's "order" method vulnerable to SQL injection?

I know it's not safe to use interpolated strings when calling .where. e.g. this: Client.where(" ... {some_value_1}, #{some_value_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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451 views

1 answer

ruby - Rails dot instead of slash in URL

In my routes.rb I have: get "projects/:category_id" => "projects#index" When I write projects_path(1) ... /:category_id(.:format) projects#index See Question&Answers more detail:os...

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

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441 views

1 answer

ruby on rails - How to run compass compile without file or line reference?

How can I suppress file or line reference such as the commented output line below when running compass compile and ... changes in my git commit. See Question&Answers more detail:os...

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

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