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create model via generator in ruby on rails

Ruby on Rails provides a model generator you can use to create ActiveRecord models. Simply use rails generate model and provide the model name.

$ rails g model user
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In addition to the model file in app/models, the generator will also create:

  • the Test in test/models/user_test.rb
  • the Fixtures in test/fixtures/users.yml
  • the database Migration in db/migrate/XXX_create_users.rb

You can also generate some fields for the model when generating it.

$ rails g model user email:string sign_in_count:integer birthday:date
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This will create the columns email, sign_in_count and birthday in your database, with the appropriate types.


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