How to rename rails controller and model in a project

Here is what I would do:

Create a migration to change the table name (database level). I assume your old table is called corps. The migration content will be:

class RenameCorpsToStores < ActiveRecord::Migration  def change    rename_table :corps, :stores  endend

Change your model file name, your model class definition and the model associations:

• File rename: corp.rb -> store.rb
• Code of store.rb: Change class Corp for class Store
• Rename all the model associations like has_many :corps -> has_many :stores

Change your controller file name and your controller class definition:

• File rename: corps_controller.rb -> stores_controller.rb
• Code of stores_controller.rb: Change class CorpsController for class StoresController

Rename views folders. From corps to stores.

Make the necessary changes in paths in the config/routes.rb file, like resources :corps -> resources :stores, and make sure all the references in the code change from corps to stores (corps_path, ...)

Remember to run the migration :)

If previous is not possible, try to delete the db/schema.rb and execute:

 $ rake db:drop db:create db:migrate

In addition to Nobita answer you similarly need to change the test & helper class definitions & file names for corps to store. More Importantly you should change corps to store in your config/routes.rb file

So in total you're making changes to the Controller, associated Model, Views, Helpers, Tests and Routes files.

I think what you’ve seen suggested with destroy & generate is a better option. I’ve given an answer how to do this here: Rails : renaming a controlller and corresponding model

You can try the Rails Refactor gem too, a Command line tool for simple refactors like rename model and controller for Rails projects

Usage:

Basic renames and refactorings for rails projects. Although these are not perfect, they'll do a lot of the work for you and save you time.

Before using, recommend that you start from a clean repository state so you can easily review changes.

To install:
gem install rails_refactor

Before use, make sure you cd to the root of your rails project.

To rename a controller:
rails_refactor rename OldController NewController

• renames controller file & class name in file
• renames controller spec file & class name in file
• renames view directory
• renames helper file & module name in file
• updates routes

To rename a controller action:
$ rails_refactor rename DummyController.old_action new_action

• renames controller action in controller class file
• renames view files for all formats

To rename a model:
$ rails_refactor rename OldModel NewModel

• renames model file & class name in file
• renames spec file & class name in file
• renames migration & class name & table names in file

...