Drop Table, Model, Migration in Rails

rails-drop-tablemigration-model-controller.md

Dropping Migration Table, Models, Controller

Command Line

1. Drop Table/Migration

rails generate migration DropTablename

A file will be created, in the db > migrate folder, make sure it looks like:

class DropUsers < ActiveRecord::Migration
  def change
    drop_table :users
  end
end

2. Drop Model

rails d model user

3. Drop Controller

rails d controller users

4. Re-Migrate

be rake db:migrate

Ha perfect! Thanks for this. I find myself looking this type of stuff up constantly, this was exactly what I needed 👍

Thanks a lot !
But be careful your migration will not be reversible.
For this, you need to add something like this :

class DropEventExport < ActiveRecord::Migration[6.0]
  def change
    drop_table :event_exports do |t|
      t.boolean "global", default: false
      t.string "file_file_name"
      t.string "file_content_type"
      t.integer "file_file_size"
      t.datetime "file_updated_at"

      t.timestamps null: false
    end
  end
end

This is great, thanks. Also, rails g migration DropTablename works as well

Hi
what about the associations created in schema file? how to remove them

Very helpful, thanks!