All Ruby on-Rails-4 Solutions on Gang of Coders

Total of 99 Ruby on-Rails-4 Solutions

Where is the default "Welcome Aboard" page located in my app?

Ruby on-Rails Ruby on-Rails-4

Why is it best to store a telephone number as a string vs. integer?

Ruby on-Rails Ruby Ruby on-Rails-3 Postgresql Ruby on-Rails-4

PG::UndefinedTable: ERROR: missing FROM-clause entry for table when using joins and where

Ruby on-Rails Ruby on-Rails-4 Psql

Add nullable foreign key in Rails

Ruby on-Rails Ruby Ruby on-Rails-4 Rails Activerecord Ruby on-Rails-4.2

rails-rspec error cannot load such file -- rspec/core/formatters/progress_formatter

Ruby on-Rails-4 Rspec Rails

How to specify devise_parameter_sanitizer for edit action?

Devise Ruby on-Rails-4 Strong Parameters

Rails 4 find or create by method doesn't work

Ruby on-Rails Ruby on-Rails-4 Associations

Running a spec in RubyMine results in "cannot load such file -- teamcity/spec/runner/formatter/teamcity/formatter (LoadError)"

Ruby on-Rails Ruby Ruby on-Rails-4 Rspec Rubymine

Rails 4: find all records

Activerecord Ruby on-Rails-4

Rails 4 + Devise: Password Reset is always giving a "Token is invalid" error on the production server, but works fine locally.

Ruby on-Rails Devise Ruby on-Rails-4

Possible to alias a belongs_to association in Rails?

Ruby on-Rails Ruby Ruby on-Rails-3 Ruby on-Rails-3.2 Ruby on-Rails-4

ActionController::UnknownFormat

Ruby Ajax Ruby on-Rails-4 Respond To

Rails: NameError: uninitialized constant

Ruby on-Rails Ruby on-Rails-4 Rails Console

Rails validates_presense not validating on boolean?

Ruby on-Rails Ruby on-Rails-4 Boolean

Schema Migrations Table

Ruby on-Rails Ruby on-Rails-4 Database Migration

Rails: respond_to JSON and HTML

Ruby on-Rails Ruby Ruby on-Rails-4 Respond To

Rails 4, how to correctly configure smtp settings (gmail)

Ruby on-Rails Email Ruby on-Rails-4 Smtp

Modify ruby hash in place( rails strong params)

Ruby Ruby on-Rails-4

Rails 4: Remove not null constraint from table column with migration?

Ruby on-Rails-4 Rails Migrations

pluralize without count number in rails 4

Ruby on-Rails Ruby on-Rails-4 Activerecord Pluralize

Rails: How to use dependent: :destroy in rails?

Ruby on-Rails Ruby Ruby on-Rails-3 Ruby on-Rails-4 Ruby on-Rails-3.2

How is attr_accessible used in Rails 4?

Ruby on-Rails Ruby on-Rails-4

Auto-loading lib files in Rails 4

Ruby on-Rails Ruby on-Rails-4

Paperclip::Errors::MissingRequiredValidatorError with Rails 4

Ruby on-Rails Ruby Ruby on-Rails-4 Paperclip

Rails: How to reference images in CSS within Rails 4

Ruby on-Rails Heroku Ruby on-Rails-4

Rails 4 Authenticity Token

Ruby on-Rails Ruby Ruby on-Rails-4 Authenticity Token

How to get a random number in Ruby

Ruby on-Rails Ruby Ruby on-Rails-3 Ruby on-Rails-4 Random

Determine what attributes were changed in Rails after_save callback?

Ruby on-Rails Ruby on-Rails-4 Model Callback Observer Pattern

What is `params.require(:person).permit(:name, :age)` doing in Rails 4?

Ruby on-Rails-4

How to solve error "Missing `secret_key_base` for 'production' environment" (Rails 4.1)

Ruby on-Rails Ruby Heroku Ruby on-Rails-4

Rails: validate uniqueness of two columns (together)

Ruby on-Rails Ruby on-Rails-3 Ruby on-Rails-4 Activerecord Rails Activerecord

Rails Observer Alternatives for 4.0

Ruby on-Rails Ruby on-Rails-4

A copy of xxx has been removed from the module tree but is still active

Ruby on-Rails Ruby Ruby on-Rails-4

Rails 4 - Gem::LoadError: Specified 'mysql2' for database adapter, but the gem is not loaded

Ruby on-Rails Ruby on-Rails-4 Ruby on-Rails-4.1 Mysql2 Ruby on-Rails-4.2

scopes with lambda and arguments in Rails 4 style?

Ruby on-Rails-4 Scope Rails Activerecord

cannot load such file -- bundler/setup (LoadError)

Rubygems Ruby on-Rails-4 Passenger Ruby 2.0

How to use concerns in Rails 4

Ruby on-Rails Ruby on-Rails-4 Dci

Nested attributes unpermitted parameters

Ruby on-Rails Ruby on-Rails-4

Is the server running on host "localhost" (::1) and accepting TCP/IP connections on port 5432?

Ruby on-Rails Ruby Postgresql Ruby on-Rails-3 Ruby on-Rails-4

Rails 4: assets not loading in production

Ruby on-Rails Ruby Asset Pipeline Ruby on-Rails-4

How get integer value from a enum in Rails?

Ruby on-Rails Ruby on-Rails-4

There was an error while trying to load the gem 'uglifier'. (Bundler::GemRequireError)

Ruby on-Rails Ruby on-Rails-4 Server

Disable ActiveRecord for Rails 4

Ruby on-Rails Ruby Ruby on-Rails-4

Saving enum from select in Rails 4.1

Ruby on-Rails Ruby Ruby on-Rails-4 Enums

Deprecated warning for Rails 4 has_many with order

Ruby on-Rails Ruby on-Rails-4

Rails 4 image-path, image-url and asset-url no longer work in SCSS files

Ruby on-Rails Asset Pipeline Ruby on-Rails-4

Safe ActiveRecord like query

Ruby Activerecord Ruby on-Rails-4

Error when trying to install app with mysql2 gem

Mysql Ruby on-Rails Ruby Ruby on-Rails-4 Mysql2

Why did Rails4 drop support for "assets" group in the Gemfile

Asset Pipeline Ruby on-Rails-4

fe_sendauth: no password supplied

Postgresql Ruby on-Rails-4

Deprecation warning when using has_many :through :uniq in Rails 4

Ruby on-Rails Activerecord Rails Activerecord Ruby on-Rails-4

how to know what is NOT thread-safe in ruby?

Ruby Multithreading Concurrency Thread Safety Ruby on-Rails-4

How to override X-Frame-Options for a controller or action in Rails 4

Ruby on-Rails Iframe Http Headers Ruby on-Rails-4 X Frame-Options

An error occurred while installing pg (0.17.1), and Bundler cannot continue

Ruby on-Rails Macos Postgresql Ruby on-Rails-4

Rails association with multiple foreign keys

Ruby on-Rails Ruby on-Rails-4 Associations Model Associations

LEFT OUTER JOIN in Rails 4

Sql Ruby on-Rails Ruby on-Rails-4 Rails Activerecord Mysql2

Rails 4: List of available datatypes

Ruby on-Rails Ruby Ruby on-Rails-4 Rails Activerecord

Rails 4 multiple image or file upload using carrierwave

Ruby on-Rails-4 Carrierwave

Rails: How to use i18n with Rails 4 enums

Ruby on-Rails-4 Enums

Rails 4: how to use $(document).ready() with turbo-links

Javascript Jquery Ruby on-Rails-4 Asset Pipeline Turbolinks

Active admin install with Rails 4

Activeadmin Ruby on-Rails-4

Rails 4: organize rails models in sub path without namespacing models?

Ruby on-Rails Namespaces Ruby on-Rails-4 Models Subdirectory

Rails update_attributes without save?

Ruby on-Rails Ruby Ruby on-Rails-3 Ruby on-Rails-4 Rails Activerecord

What is the use of secret_key_base in rails 4

Ruby on-Rails Ruby Ruby on-Rails-4 Ruby on-Rails-5 Ruby on-Rails-6

'rails generate' commands hang when trying to create a model

Ruby on-Rails Ruby on-Rails-4

JQuery gets loaded only on page refresh in Rails 4 application

Jquery Twitter Bootstrap Ruby on-Rails-4

Rails API : Best way to implement authentication?

Ruby on-Rails Ruby on-Rails-4 Rails Api

Library not loaded: /usr/local/opt/readline/lib/libreadline.6.dylib (LoadError)

Ruby on-Rails Ruby Ruby on-Rails-4

Heroku does NOT compile files under assets pipelines in Rails 4

Heroku Asset Pipeline Ruby on-Rails-4

With Rails 4, Model.scoped is deprecated but Model.all can't replace it

Activerecord Ruby on-Rails-4

What is the equivalent of the has_many 'conditions' option in Rails 4?

Ruby on-Rails-4

In Rails, what's the difference between find_each and where?

Ruby on-Rails Ruby Ruby on-Rails-3 Ruby on-Rails-4 Activerecord

Generate migration - create join table

Ruby on-Rails Ruby on-Rails-3 Ruby on-Rails-4 Migration Jointable

Rails I18n validation deprecation warning

Ruby on-Rails Ruby Ruby on-Rails-4 Deprecated Rails I18n

Rails 4 default scope

Ruby on-Rails-4 Default Scope

ActiveRecord OR query Hash notation

Ruby on-Rails Ruby on-Rails-4 Activerecord Rails Activerecord Ruby on-Rails-5

What is the difference between Workers and Threads in Puma

Multithreading Heroku Ruby on-Rails-4 Puma

Does Rails 4 have support for OR queries

Ruby on-Rails Ruby on-Rails-4

has_many, belongs_to relation in active record migration rails 4

Ruby on-Rails Rails Activerecord Ruby on-Rails-4 Rails Migrations

RoR nested attributes produces duplicates when edit

Duplicates Ruby on-Rails-4 Nested Attributes

Why Rails 5 uses ApplicationRecord instead of ActiveRecord::Base?

Ruby on-Rails Ruby on-Rails-4 Ruby on-Rails-5

How to display a Rails flash notice upon redirect?

Ruby on-Rails Ruby on-Rails-3 Ruby on-Rails-3.2 Ruby on-Rails-4 Rails Flash

Why am I asked to run 'rake db:migrate RAILS_ENV=test'?

Ruby on-Rails Rails Migrations Ruby on-Rails-4

Rails 4: before_filter vs. before_action

Ruby on-Rails Ruby Ruby on-Rails-4 Crud

ActionController::InvalidAuthenticityToken in RegistrationsController#create

Ruby on-Rails Devise Ruby on-Rails-4

Add a reference column migration in Rails 4

Ruby on-Rails Ruby on-Rails-4 Foreign Keys Rails Activerecord Rails Migrations

How to use fonts in Rails 4

Fonts Asset Pipeline Ruby on-Rails-4

How to rename rails 4 app?

Ruby on-Rails-3 Ruby on-Rails-4

rails 4 asset pipeline vendor assets images are not being precompiled

Asset Pipeline Ruby on-Rails-4

Ruby on rails 4 app does not work in iframe

Ruby on-Rails Ruby on-Rails-3 Iframe Ruby on-Rails-4

Default value for input with simple_form

Ruby on-Rails Ruby on-Rails-4 Erb Simple Form

Postgres JSON data type Rails query

Json Postgresql Ruby on-Rails-4 Rails Postgresql Psql

Guard with RSpec on Rails 4 giving a lot of warnings

Ruby on-Rails Ruby Ruby on-Rails-4 Rspec

rails console doesn't start

Ruby on-Rails Ruby on-Rails-4 Rails Console

"bin/rails: No such file or directory" w/ Ruby 2 & Rails 4 on Heroku

Ruby on-Rails Ruby Heroku Ruby on-Rails-4 Ruby 2.0

Using logger in Rails 4

Logging Ruby on-Rails-4

Rails 4 Unpermitted Parameters for Array

Ruby on-Rails Ruby Ruby on-Rails-4 Strong Parameters

Custom error pages for 404, 500 but where is the default 500 error message coming from?

Error Handling Ruby on-Rails-4

How to Create a New Table With a Unique Index in an Active Record / Rails 4 Migration

Ruby on-Rails Activerecord Ruby on-Rails-4