chore: linting stuff

app/models/ticket.rb

@@ -1,8 +1,22 @@
 class Ticket < ApplicationRecord
+  # Associations
+  belongs_to :user
+  belongs_to :ticket_type
+  has_one :party, through: :ticket_type
+
   # Validations
   validates :qr_code, presence: true, uniqueness: true
-  validates :party_id, presence: true
   validates :user_id, presence: true
+  validates :ticket_type_id, presence: true
   validates :price_cents, presence: true, numericality: { greater_than: 0 }
   validates :status, presence: true, inclusion: { in: %w[active used expired refunded] }
+
+  before_validation :set_price_from_ticket_type, on: :create
+
+  private
+
+  def set_price_from_ticket_type
+    return unless ticket_type
+    self.price_cents = ticket_type.price_cents
+  end
 end