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83 lines
2.5 KiB
Ruby
83 lines
2.5 KiB
Ruby
class Ticket < ApplicationRecord
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belongs_to :conference
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has_many :ticket_purchases, dependent: :destroy
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has_many :buyers, -> { distinct }, through: :ticket_purchases, source: :user
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has_paper_trail meta: { conference_id: :conference_id }
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monetize :price_cents, with_model_currency: :price_currency
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# This validation is for the sake of simplicity.
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# If we would allow different currencies per conference we also have to handle convertions between currencies!
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validate :tickets_of_conference_have_same_currency
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validates :price_cents, :price_currency, :title, presence: true
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validates :price_cents, numericality: { greater_than_or_equal_to: 0 }
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def bought?(user)
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buyers.include?(user)
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end
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def tickets_paid(user)
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paid_tickets = quantity_bought_by(user, paid: true)
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unpaid_tickets = quantity_bought_by(user, paid: false)
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"#{paid_tickets}/#{paid_tickets + unpaid_tickets}"
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end
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def quantity_bought_by(user, paid: false)
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ticket_purchases.by_user(user).where(paid: paid).sum(:quantity)
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end
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def unpaid?(user)
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ticket_purchases.unpaid.by_user(user).present?
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end
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def total_price(user, paid: false)
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quantity_bought_by(user, paid: paid) * price
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end
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def self.total_price(conference, user, paid: false)
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tickets = Ticket.where(conference_id: conference.id)
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result = nil
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begin
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tickets.each do |ticket|
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price = ticket.total_price(user, paid: paid)
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if result
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result += price unless price.zero?
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else
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result = price
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end
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end
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rescue Money::Bank::UnknownRate
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result = Money.new(-1, 'USD')
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end
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result ? result : Money.new(0, 'USD')
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end
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def self.total_price_user(conference, user, paid: false)
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tickets = TicketPurchase.where(conference: conference, user: user, paid: paid)
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tickets.inject(0){ |sum, ticket| sum + (ticket.amount_paid * ticket.quantity) }
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end
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def tickets_turnover_total(id)
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tickets = TicketPurchase.where(ticket_id: id).paid
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if tickets.nil?
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tickets.inject(Money.new(0, tickets.first.price_currency)){ |sum, ticket| sum + (ticket.amount_paid * ticket.quantity) }
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else
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Money.new(0, Ticket.find(id).price_currency)
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end
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end
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def tickets_sold
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ticket_purchases.paid.sum(:quantity)
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end
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private
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def tickets_of_conference_have_same_currency
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unless Ticket.where(conference_id: conference_id).all?{|t| t.price_currency == price_currency }
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errors.add(:price_currency, 'is different from the existing tickets of this conference.')
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end
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end
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end
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