Examples of programming questions in ruby-on-rails

How do I display a PDF in ROR (Ruby)?
Where's root_path or root_url?
ROR + Unable to install tiny_tds
Using --no-rdoc and --no-ri with bundler
Rails how to validate file format?
How to remove validation using instance_eval clause in Rails?
Cron job not working in Whenever gem
Proper way to send an Authenticity Token with AJAX to Rails
Ruby on Rails: How do detect if access by JSON?
ruby on rails flash messages - :alert :error :notice and :success?
How to check if an hash is "completely" included in another hash?
Detect screen size and pixel density on the server-side?
Managing conflict in schema.rb created by Git operation
Ruby find next Thursday (or any day of the week)
Block commenting in Gedit?
Ruby unless && statement
Rails.cache.fetch exception: TypeError (<ModelName> can't be referred to)
capybara: find(element) using selector to target a complex attribute name
How to translate active record model validations
Getting a form to use :method => :delete (rails)
Rails: wkhtmltopdf RuntimeError (Location of wkhtmltopdf unknown)
Rails lists have .first and .second – is there a .hundredth or .sixty_nineth ?
Rails 3. How to display two decimal places in edit form?
Ruby on Rails nil can't be coerced into BigDecimal
Ruby on rails log file size too large
Access Asset Path from Rails Controller
Reload the rails console
Ruby/Rails - Open a URL From The Controller In New Window
Ruby on Rails patterns - decorator vs presenter
Filter on parent object attribute in ActiveAdmin
How to name a route in rails
Heroku - Application Error
Ruby Link to home#index _path
ActiveAdmin forms with has_many - belongs_to relationships?
Manually creating parameter hash rails
How can I do a LEFT OUTER JOIN using Rails ActiveRecord?
Check for multiple items in array using .include? -- Ruby Beginner
Best place to store model specific constants in rails 3.1?
Rails ActiveRecord: How do I know if find_or_create_by found or created?
Named routes in mounted rails engine
How to destroy all association data between two models? (Rails beginner)
rspec and_return multiple values
Rails: How to determine controller/action in view
How to use several aggregate functions at once in Rails/ActiveRecord?
Overriding rails' default rake tasks
using HTML5 video tag in a simple rails app
How to read content of remote file in Ruby on Rails?
Rails: How to limit number of items in has_many association (from Parent)
bundle exec rake db:migrate causes "can't find executable rake" error
Escaping a single quotation within SQL query
What's the most efficient way to remove first character of a string?
Create URL for external site with GET parameters in Rails
Not assigning nil values to a hash
simple_forms custom data attribute
rake task variable
Ruby on Rails: How would i stay on the same page if the post is not saved?
Count records created within the last 7 days
Can not connect to local PostgreSQL
Provide params hash for put / post requests in rails console
How to find the minimum value in a table column in Rails 3
How do I comment out ERB in Rails?
Rails scope for IS NOT NULL and is not empty/blank?
How to use seed.rb to selectively populate development and/or production databases?
Rails 3. How to add a helper that ActiveAdmin will use?
Change html form id generated by form_for rails 3.1
How to get list of controllers and actions in ruby on rails?
How to get url_for an object in Model method in Rails
Undefined method with "_path" while using rails form_for
Truncate a string without cut in the middle of a word in rails
Time.use_zone is not working as expected
Iterate over a deeply nested level of hashes in Ruby
How could/should I state colon (punctuation) in a YAML file?
Is there an opposite function of slice function in Ruby?
Getting undefined method for ActiveRecord::Relation
Given a URL, how can I get just the domain?
Conditional Callback in Rails' model?
How do you use multiple rails versions with rbenv?
Why is the first element always blank in my Rails multi-select, using an embedded array?
Change id in simple form
Why is db:migrate failing when i try to add attachment fields for paperclip?
Validate uniqueness of in association
How to find Cucumber steps that are not used
Is there any reporting tool or a gem in Ruby on Rails
track application memory usage on heroku
Restart my heroku application automatically
Rails getting validation failed error, but no errors in ActiveRecord error model
fixture_file_upload has {file} does not exist error
The opposite of assert_select?
ActiveAdmin: How to override index controller action: undefined method `base' for nil:NilClass
What flash message types are available in Rails?
How to mock an array in RSpec?
Rails migration set current date as default value
Using Rails update_all method to update fields with value from another column
undefined local variable or method `confirmed_at' for #User
How to set transaction isolation level using ActiveRecord connection?
How to edit or write on existing PDF with Ruby?
Ruby gems in stand-alone ruby scripts
Getting frequent Gem RemoteFetcher::FetchError. Any workarounds?
Postgres accent insensitive LIKE search in Rails 3.1 on Heroku
Allow public connections to local Ruby on Rails Development Server
Factory already registered: user (FactoryGirl::DuplicateDefinitionError)
sass-rails helpers "image-url", "asset-url" are not working in rails 3.2.1
Ruby on Rails link_to With put Method
Using a scope from a related model in another scope
using has_many :through and build
Rails nested attributes children callbacks aren't fired
how to add a class to the input component in a wrapper in simple_form 2
How would I destroy_all or delete_all records except one in ruby on rails?
Unable to start the Phusion Passenger watchdog?
Rails - How to change created_at time?
How to override default_scope in ActiveAdmin in Rails
devise and multiple "user" models
Dynamically get Object's attribute
Rails cron whenever, bundle: command not found
ActiveRecord: count with groups
How to correctly iterate through params
What is the Rails way to define tomorrow's date?
Rails: change column type, but keep data
Return Single Field with Rails Query
Is it possible to create a conditional association in model?
How to disable a form submit button "a là Ruby on Rails Way"?
Rails .where vs .find
Rate-limiting for rails controllers
How to find a specific row in csv
Marking Rails migrations as migrated
Rails find record with zero has_many records associated
Rails which files to ignore for GIT
how to add a primary key to a table in rails
How to translate timezone full names to tz abbreviations?
simple_form text input
how to undo bundle update
ActiveRecord::Store with default values
Rails redirect_to with params
Rails change column to mediumtext
Convert User input to integer
Rails: rendering the js.erb template using the controller
Sending files to a Rails JSON API
How to skip the need to confirm an email address update with devise?
ruby on rails, replace last character if it is a * sign
Ruby compare two strings similarity percentage
Ruby Regex Error: incompatible encoding regexp match (ASCII-8BIT regexp with UTF-8 string)
How to pass data to IN query in rails 3
bootstrap modal disappear immediately after showing
Passing parameters through OmniAuth
Capybara and Rspec: correct way to use within() and have_selector() together?
Mocha: How to add expectation of a method when there are multiple invocations with different parameters
Regular expression for only allow numbers and must end with '#' sign
RSpec + database cleaner, not cleaning correctly
bundle install leads to git clone error. Not sure what this response means
simple_form_for rails radio button inline
Point of Sale and Inventory database schema
ruby rails - redirect to original request url
Rails server does not start by command "Rails s
Rails 301 Redirection
click on one Specific button using capybara in rails
Rails 3 DateTime and Time beginning_of_day end_of_day format incorrect
how to validate a record in table before saving in ruby on rails
Producing single-line comments with HAML?
Can't find libcurl or curl/curl.h (RuntimeError)
rails update_attributes returns false when trying to update db values
How do I save a current date/time for a DATETIME column in rails 3?
How do you pass data from a controller to a model with Ruby on Rails?
How can I delete specific jobs from Resque queue without clearing the whole queue?
How can I make a check_box_tag to post a 'false' or '0' parameter when unchecked?
Rails: How to use "_blank" or "_new" in Rails
Rails 3 Joins -- Select only certain columns
Pretty Print SQL in Ruby
Haml: link_to vs button_to
Find specific job in resque queue
Find file path of a given class
Rails change routing of submit in form_for
Pass parameter in setting attribute on association in FactoryGirl
How to set default selected value for Rails SimpleForm select box
Active Admin scopes for each instance of a related model
Rails migration change sequence or order
Is there a way in the Rails Console to print a table of database contents?
Adding a Twitter Bootstrap button icon to button_to in Rails
How to maintain the ordering for nested attributes when using accepts_nested_attributes_for in a Rails application
iterate through active record results - ruby on rails
What is the proper way to test 'create' controller actions?
How to convert MS excel date from float to date format in Ruby?
error in your Gemfile, and Bundler cannot continue
Bundle update fails on ffi
Howto use callbacks in a has_many through association?
How do i click this button in capybara
Installed elasticsearch using homebrew and cannot locate the config files
Render JSON instead of HTML as default?
GitLab email setup: sending via another mail server
Rails 3 - check that object is valid with params before update
OpenSSL::SSL::SSLError: SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed
ActiveRecord, Find by value of nested attribute
Ruport - undefined method `each' for "":String
Postgres permission denied on MAC OS X
Is it possible to add errors to an ActiveRecord object without associating them with a particular attribute?
Ruby find string in file and print result
rspec what is the difference between be nil and be_nil
Devise authenticating with username instead of email
How do I simulate hitting enter in an input field with Capybara and ChromeDriver?
How to get the line of code that triggers a query?
How to make Devise redirect after confirmation
How to test for a redirect with Rspec and Capybara
Git Errors when Pushing on Heroku
Rails Simple Form custom association select field
How to render HTML inside Slim templates
Get validation error messages without saving
Rails / Haml: How to create a post form?
Rails auto-assigning id that already exists
Counting associated records in Rails
Using the Bubble sort method for an array in Ruby
Rails and Selenium: how to stop/pause execution of a test in the browser?
ActiveAdmin how to sort column with associations
How to serve a static JSON file in rails?
How to tell which format a controller has resolved to render
question mark and colon - if else in ruby
Where to define Rails app's version number
using an array with fields_for
Test Redirection with RSpec and Capybara (Rails)
Rails "find_all_by" vs ".where
Instance Variables in Rails Model
CanCan and controllers without models
Rails layout per controller
erb, haml or slim: which one do you suggest? And why?
What is ActiveRecord equivalence in the node.js world?
Rails - simple_form, include a named blank object in a collection on new and edit
Execute redis FLUSHALL command in rails application
How to append data to csv file
Rails: Error installing pg gem
How do you create a BLOB column in rails postgresql database
Best way to show image previews before upload in rails & carrierwave
unknown attribute: user_id
How can I translate ActiveRecord model class name?
Ruby on Rails ActiveRecord where property is not blank
Nokogiri: how to find a div by id and see what text it contains?
How can I make scaffold only for controller and views if model already exists?
Prevent STI when inheriting from an ActiveRecord model
How to add conditional where clauses in rails
Change or update an attribute value during Rails ActiveRecord validation
How can I serialize - deserialize a hash in order to save it in the database?
Rails wildcard routes : vs *
Contexts in rspec
Showing only Objects from the past 30 days
Ruby on Rails: How to check if the Model Exists
Rails Routes :shallow => true
Convert local time to UTC in Rails
Is there documentation for the Rails column types?
Devise and Strong Parameters
How to eager load a polymorphic model?
How to make Devise lockable with number of failed attempts
Rails - Get the current week's and month's start and end dates
is there anyway to undo an activerecord delete in rails console?