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class CreateReactions < ActiveRecord::Migration[7.2]
def change
create_table :reactions do |t|
t.references :reactable, polymorphic: true, null: false
t.references :user, null: false
t.timestamps null: false
end
add_index :reactions, [:reactable_type, :reactable_id, :user_id], unique: true
add_index :reactions, [:reactable_type, :reactable_id, :id]
end
end
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