Recent questions tagged Ruby

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ruby on rails - Creating temporary files in Heroku

I have an app hosted @ Heroku. The app depends on some feeds which are fetched using a socket listener. The ... as a temporary file in 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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558 views

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ruby on rails - send email from localhost

I'm try learn about email in rails. I'm developing something on localhost. Is it possible to send an email ... at the moment for development. See Question&Answers more detail:os...

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

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506 views

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ruby - how to install gems without sudo

On all my gem installs I have to do sudo ? So sudo gem install rails will work, while only gem install ... denied - /home/murtaza/.gem/specs 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 - HTTP basic auth for Capybara

I'm writing some RSpec tests for my Rails 3 application and trying to switch from Webrat to Capybara. So far ... do this with Capybara? 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 - SQLite3::BusyException

Running a rails site right now using SQLite3. About once every 500 requests or so, I get a ActiveRecord:: ... over to MySQL tomorrow morning. See Question&Answers more detail:os...

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

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523 views

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ruby - Rails Model without a table

I want to create a select list for lets say colors, but dont want to create a table for the colors. I have seen ... but now I couldn't find 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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ruby - Using a string as a variable at run time

I have a string, which has been created at runtime. I want to use this string as a variable to store some ... the string into a variable 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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ruby - mysql2 gem fails to compile with MySQL 5.6.12 on OS X with Homebrew

I updated all the packages I installed with Homebrew. MySQL got upgraded to 5.6.12 (from 5.5.27 or so): $ ... still failed. So I'm stuck. 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 - How to make Devise lockable with number of failed attempts

Using Devise 2.1.2 and Rails 3.2.6 I'm doing this Q&A just in case others run into this problem ... , :trackable, :validatable, :lockable 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 - Put a link in a flash[:notice]

I am learning Ruby and Rails. I have a Ruby on Rails project that tracks jobs a server is running. Right now, ... order to turn it into a link? See Question&Answers more detail:os...

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

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665 views

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ruby - How can I validate exits and aborts in RSpec?

I am trying to spec behaviors for command line arguments my script receives to ensure that all validation passes. ... in my Something class). See Question&Answers more detail:os...

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

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425 views

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ruby on rails - How do I check to see if my array includes an object?

I have an array @horses = [] that I fill with some random horses. How can I check if my @horses array includes ... fill it with the same horse? See Question&Answers more detail:os...

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

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392 views

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ruby on rails - What permissions are needed for apache Passenger

Running Ubuntu 10.04 on Linode, RVM, Rails 3, Apache with Passenger module, carrierwave and mini-magick I get: ... I need to make writable? See Question&Answers more detail:os...

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

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427 views

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ruby on rails - How do you deal with the conflict between ActiveSupport::JSON and the JSON gem?

I am stumped with this problem. ActiveSupport::JSON defines to_json on various core objects and so does the JSON ... higher, which fixed 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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555 views

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ruby on rails - How do you select every nth item in an array?

I'm looking to find a way in Ruby to select every nth item in an array. For instance, selecting every ... array with integers, not strings. See Question&Answers more detail:os...

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

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387 views

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ruby on rails - Simple way of turning off observers during rake task?

I'm using restful_authentication in my app. I'm creating a set of default users using a rake task, but every time ... I save the user? 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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453 views

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ruby on rails - Mongoid OR query syntax

This must be asked alot but it is very poorly documented. There is no mention at http://mongoid.org/en/ ... clear syntax to do this 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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548 views

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ruby on rails - How can I count the number of records that have a unique value in a particular field in ROR?

I have a record set that includes a date field, and want to determine how many unique dates are represented in ... that doesn't seem to work. See Question&Answers more detail:os...

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

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636 views

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ruby - What to use instead of `render :text` (and `render nothing: true`) in rails 5.1 and later?

Rails 5.1 removes a whole load of previously deprecated methods. Among them is the old friend render :text. It ... : 401 What to use instead? See Question&Answers more detail:os...

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

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305 views

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ruby - File upload with Sinatra

I am trying to be able to upload files with Sinatra. I have the code here, but I'm getting the error " ... Is there some dependency I'm missing. See Question&Answers more detail:os...

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

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332 views

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ruby on rails - How can I use a subdirectory instead of a subdomain?

I'm building a rails app that I'll host on Heroku at domain.com. And I'd like to use WordPress for the ... ? Thanks in advance for the help. See Question&Answers more detail:os...

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

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613 views

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ruby on rails - How to catch error exception in ActionMailer

The problem is how can I catch exception in delivering mail by ActionMailer. For me it sounds impossible, because ... to implement 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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339 views

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ruby on rails 4 - ActiveRecord query through multiple joins

I have a schema like this. managers has_many :emails has_many :stores emails belongs_to :manager stores belongs_to ... first.readings.limit(10) 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 - ActionMailer 3 without Rails

I'm writing a small Ruby program that will pull records from a database and send an HTML email daily. I'm ... creating a full-blown Rails app? 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 - Resque, Devise and admin authentication

Using Resque and Devise, i have roles for User, like: User.first.role #=> admin User.last.role #=> regular I ... 'admin' role. Thanks a lot. See Question&Answers more detail:os...

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

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499 views

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ruby on rails - How can an ActiveRecord::Relation object call class methods

How can an ActiveRecord::Relation object call class methods? class Project < ActiveRecord::Base has_many : ... initial_tasks? 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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536 views

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ruby on rails 3 - How do I enable :confirmable in Devise?

The newest version of Devise doesn't have :confirmable enabled by default. I already added the respective columns to ... I need to enable 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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331 views

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ruby - Difference - unless / if

Can anyone explain me the difference between if and unless and when to use 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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