How to rename rails 4 app? - ruby-on-rails-3

Question

rails plugin install git://github.com/get/Rename.git will allow us to rename only rails 3 app
Is there any gem available to rename Rails 4 app.
If not, suggest me the better way to rename.

Answer 1

Since rails 4.1.x, if you want to rename your application, the only two files you need to modify are config/application.rb:
require File.expand_path('../boot', __FILE__)
require 'rails/all'
# Require the gems listed in Gemfile, including any gems
# you've limited to :test, :development, or :production.
Bundler.require(*Rails.groups)
module YourApplicationName # <-- rename it here
class Application < Rails::Application
...
end
end
and config/initializers/session_store.rb (optional):
# Be sure to restart your server when you modify this file.
Rails.application.config.session_store :cookie_store, key: '_your_application_name_session' # <-- rename the key
For Rails 4.0.x you can use the rename gem and execute the following command:
rails g rename:app_to New-Name
This will update the necessary files for you:
old/ (master) › rails g rename:app_to new
Search and replace module in to...
gsub config.ru
gsub Gemfile
gsub Gemfile.lock
gsub Rakefile
gsub README.md
gsub config/application.rb
gsub config/boot.rb
gsub config/environment.rb
gsub config/environments/development.rb
gsub config/environments/production.rb
gsub config/environments/test.rb
gsub config/initializers/backtrace_silencers.rb
gsub config/initializers/filter_parameter_logging.rb
gsub config/initializers/inflections.rb
gsub config/initializers/load_class_extensions.rb
gsub config/initializers/mime_types.rb
gsub config/initializers/secret_token.rb
gsub config/initializers/session_store.rb
gsub config/initializers/update.rb
gsub config/initializers/wrap_parameters.rb
gsub config/routes.rb
gsub config/initializers/session_store.rb
Renaming references...
Renaming directory...Done!
New application path is '/Users/username/code/new'

Answer 2

Add
gem 'rename' to Gemfile
then
bundle install
After that
rails g rename:app_to name_of_app
And if you are using mongoid then you need to rename the database name in config/mongoid.yml

Answer 3

There are two ways:
1 . Manually (For Rails 4.1.x)
You need to manually find the references to the application name. And you need to change them manually. Here is some common places where it is used:
config/application.rb
config/environment.rb
config/environments/development.rb
config/environments/production.rb
config/environments/test.rb
config/initializers/secret_token.rb
config/initializers/session_store.rb
config/routes.rb
config.ru
app/views/layouts/application.html.erb
Rakefile
2 . Automatic (For Rails 3 and 4.0.X)
Or you can use the rename gem and execute the following command:
rails g rename:app_to New-Name

Answer 4

For Rails 5
Require
config/application.rb change the module name
Optional
config/initializers/session_store.rb (in Rails.application.config.session_store) change the session name
app/views/layouts/application.html.erb You can change the <title>...</title>, if it is not already done

Answer 5

I just used this rename gem in a basic rails 4 app:
https://github.com/morshedalam/rename
This is quite a bit different to get's version.
Easy enough to use:
Add this to Gemfile:
gem 'rename'
And run:
rails g rename:app_to NewName
Seemed to the trick,
It also updated my rubymine .idea project settings :)

Answer 6

In Rails 4.2 just change in application config file
config/application.rb
and config/initializers/session_store.rb (optional):
Rails.application.config.session_store :cookie_store, key: '_your_application_name_session' # <-- rename the key
then restart your server.
That's it!

Answer 7

For rails 5.2
Add gem 'rename' to the gemfile
bundle install
rails g rename:into your_new_app_name

Answer 8

Here is a gem specifically for Rails 4
https://github.com/negativetwelve/rails-rename
(I haven't used it but it seems fine)
The other gems listed here only target Rails 3

Answer 9

In Rails 5.x, doing it manually
using ag (https://github.com/ggreer/the_silver_searcher), there are files that use the default folder name (if generated via rails new .)
three basic files, relative to root of project, need to be updated:
config/cable.yml > channel_prefix:
config/environments/production.rb > # config.active_job.queue_name_prefix
package.json > name
There are sure to be more locations as mentioned previously such as database etc. Hope this helps.

Answer 10

How to Rename a Rails 6.1.3 Application
the "rename" gem doesn’t appear to be tested against Rails 6 at this time according to their documentation so I opted for the manual route.
config/database.yml (rename the 3 databases)
config/application.rb (rename the module)
package.json (rename the package name)
README.md (in case it mentions your old app name)
app/views/layouts/application.html.erb (rename the title)
config/cable.yml (name the Channel_prefix database to the new production database)
Run npm install so that the name attribute you previously updated in package.json is registered.
Run your migrations rails db:migrate
Start your server rails s

Answer 11

For Rails 6.1 Here is what I did:
rename module config/application.rb
run bundle install
and run rails db:migrate.
after that running rails c then Rails.application.class.module_parent.name