rails-models
Rails Models (ActiveRecord)
Quick Reference
| Pattern | Example |
|---|---|
| Model Generation | rails g model User name:string email:string |
| Migration | rails g migration AddAgeToUsers age:integer |
| Validation | validates :email, presence: true, uniqueness: true |
| Association | has_many :posts, dependent: :destroy |
| Callback | before_save :normalize_email |
| Scope | scope :active, -> { where(active: true) } |
| Query | User.where(active: true).order(created_at: :desc) |
Model Definition
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