over 9 years ago
Migrations comes up with the convenient way to alter your database in a structured and organized pattern.
it makes use of Ruby DSL so no need to write SQL statements, allowing your schema to reflect changes independently.
Anatomy of Migration
- class CreateProducts < ActiveRecord::Migration
- def up
- create_table :products do |t|
- t.string :name
- t.text :description
- t.timestamps
- end
- end
- def down
- drop_table :products
- end
- end
class CreateProducts < ActiveRecord::Migration
def up
create_table :products do |t|
t.string :name
t.text :description
t.timestamps
end
end
def down
drop_table :products
end
end
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