ActiveRecord
Models map tables and provide query methods.
What you will be able to do
- Define associations.
- Use where and order.
- Use migrations for schema.
In plain English
Models map tables and provide query methods.
- Define associations.
- Use where and order.
- Use migrations for schema.
class Course < ApplicationRecord
has_many :lessons, dependent: :destroy
validates :title, presence: true
endYour turn
EasyExplain it back
Answer from memory: Which method declares a one-to-many association?
TEXT · starter
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Knowledge checkQuestion 1
Which method declares a one-to-many association?
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