Rails-NotNullColumn.md

Pattern: NOT NULL column without default value

Issue: -

Description

This rule checks for add_column call with NOT NULL constraint in migration file.

Examples

# bad
add_column :users, :name, :string, null: false
add_reference :products, :category, null: false

# good
add_column :users, :name, :string, null: true
add_column :users, :name, :string, null: false, default: ''
add_reference :products, :category
add_reference :products, :category, null: false, default: 1

Default configuration

Attribute	Value
Include	db/migrate/*.rb

Further Reading

• RuboCop - Rails/NotNullColumn