Rails - New Shortcut for Not Null Columns in Migrations
- Categories:
- rails
Rails is introducing a handy new feature in its migration generator: a shortcut for creating not null columns. This enhancement, submitted by David Heinemeier Hansson (DHH) himself, simplifies the process of defining required fields in your database schema.
The New Syntax
Previously, to create a not null column, you’d have to explicitly specify null: false
in your migration. Now, you can use the !
symbol as a shortcut.
bin/rails generate migration CreateUsers email_address:string!:uniq password_digest:string!
This generates the following migration:
class CreateUsers < ActiveRecord::Migration[8.0]
def change
create_table :users do |t|
t.string :email_address, null: false
t.string :password_digest, null: false
t.timestamps
end
add_index :users, :email_address, unique: true
end
end
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