[Rails] About active hash

class Plan < ActiveHash::Base
  self.data = [
    {id: 1, name: "free"},
    {id: 2, name: "silver"},
    {id: 3, name: "gold"},
  ]
end

class Plan < ActiveHash::Base
  self.data = [
    {id => 1, name => "free"},
    {id => 2, name => "silver"},
    {id => 3, name => "gold"},
  ]
end

class Plan < ActiveHash::Base
  fields :name
  add id: 1, name: "free"
  add id: 2, name: "silver"
  add id: 3, name: "gold"
end

pry(main)>Plan.first
=> #<Plan:0x00007ffd3d2c43f8 @attributes={:id=>1, :name=>"free"}>

extend ActiveHash::Associations::ActiveRecordExtensions
belongs_to_active_hash :Active Hash model name

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