Tagged Questions

Ruby is an open-source dynamic object-oriented interpreted language created by Yukihiro Matsumoto (Matz) in 1993.

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3 views

RVM install issue - Unable to execute port (autoconf)

I'm trying to install Jekyll on OSX mountain lion. First of all I wanted to install RVM and then the latest ruby. However, the RVM install is failing and I can't solve the problem. Any help ...
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0answers
10 views

How do I Link_to an external URL in new tab/window and also run controller method?

I have a list of links being rendered from the database. When a link is clicked I'd like the href to open in a new tab/window and to also call a controller method so I can update a database field ...
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0answers
11 views

How to increase page execution time in rails 3?

I want to increase my rail project page execution time for RAILS 3. When i load page then in loop more than 1000 data in loop but only load around 136 data only because of complete page execution ...
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votes
1answer
20 views

Ruby: Extending hash constructor

I'm new to Ruby, so apologies if my terminology is incorrect here. I'm trying to make a subclass of hash, but am having trouble with initialising it. I want to be able to initialise it with an ...
1
vote
2answers
17 views

What is the best known option to dynamically add model fields in nested form?

I have following nested form. And I want to add dynamically multiple web_profiles to person by clicking + button. Right now like you can see in the controller I can add only one web ...
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1answer
12 views

How to find browser user-agent with selenium in ruby

I want to know current user-agent. I have used selenium2 with ruby I have set user-agent in env.rb Capybara.default_driver = :selenium Capybara.register_driver :selenium do |app| profile = ...
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0answers
12 views

How to group in mongo from ruby

I'm trying to group by 2 fields in my mongo collection from ruby. I've got it working from within the mongo client however can't get the ruby syntax right. My command on the mongo client is ...
-1
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0answers
13 views

Sinatra - Nilclass with session variable

get '/blackjack/*' do if params[:splat] == "/hit" and defined? session[:bj_game] erb :blackjack elsif params[:splat] == "/fold" and defined? session[:bj_game] session[:bj_hum].fold = true ...
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3answers
28 views

get groups of characters n at a time

I'm trying to group a string by three (but could be any number) characters at a time. Using this code: "this gets three at a time".scan(/\w\w\w/) I get: ["thi","get","thr","tim"] But what I'm ...
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0answers
15 views

Where is the gem ember-dev?

Digging around emberjs git repo, I found the file config.ru, which contains the line require 'ember-dev'. I started rackup without any errors, but when I then tried irb -rember-dev , I got a load ...
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3answers
39 views

Replace every other character

how could i skip or replace every other character (could be anything) with regex? "abc123.-def45".gsub(/.(.)?/, '@') to get "a@c@2@.@d@f@5"
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10 views

Jruby : install redcarpet throw error

I want to install redcarpet gem in JRuby I did jruby -S gem install redcarpet Fetching: redcarpet-2.3.0.gem (100%) Building native extensions. This could take a while... ERROR: Error installing ...
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2answers
23 views

What would the regex be to detect this string?

I need to determine if a given string has the sequence dash-alpha-alpha-dash. Example strings: 114888-ZV-209897 409-II-224858 86296-MO-184080 2459-ND-217906 What would be the the regex to ...
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votes
1answer
17 views

Regex flatten usage

I am using regex to extract a value from a variable. The output comes in this format: [["\"XXX.YYY\""]] So, I use flatten & it gives me this output: ["\"XXX.YYY\""] How can I extract only ...
2
votes
2answers
28 views

Ruby: Want to use object as string

I am working with a library which uses strings as ids throughout. I want to make a class which can be used in place of these ids, but looks like a string to the existing code. E.g. I have an ...

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