52 lines
2.2 KiB
Ruby
52 lines
2.2 KiB
Ruby
# frozen_string_literal: true
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# License: AGPL-3.0-or-later WITH WTO-AP-3.0-or-later
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# Full license explanation at https://github.com/houdiniproject/houdini/blob/master/LICENSE
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module QueryTicketLevels
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# Given an array of ticket hashes, where each hash has a ticket_level_id and a quantity,
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# calculate the gross amount for all the tickets
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#
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# This could probably be more efficient. I didn't think of a way to calculate it within the query itself.
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# Although I think it's O(n), and n will always be quite small (the number of tickets someone buys)
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def self.gross_amount_from_tickets(tickets, discount_id)
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amounts = TicketLevel.where('id IN (?)', tickets.map { |h| h['ticket_level_id'] }).map { |i| [i.id, i.amount] }.to_h
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total = tickets.map { |t| amounts[t['ticket_level_id'].to_i].to_i * t['quantity'].to_i }.sum
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if discount_id
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perc = EventDiscount.find(discount_id).percent
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total -= (total * (perc / 100.0)).round
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end
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total
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end
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def self.with_event_id(event_id, is_admin)
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expr = Qx.select('ticket_levels.*', 'SUM(tickets.quantity) AS quantity')
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.from(:ticket_levels)
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.left_join([:tickets, 'ticket_levels.id=tickets.ticket_level_id'])
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.group_by('ticket_levels.id')
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.where('ticket_levels.event_id = $id', id: event_id)
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.order_by("ticket_levels.order ASC, coalesce(ticket_levels.amount, 'Infinity'::float) ASC, LOWER(ticket_levels.name) ASC") # This puts free ticket levels at the bottom
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unless is_admin
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expr = expr.and_where('coalesce(ticket_levels.admin_only, FALSE) = FALSE')
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end
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expr.execute
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end
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def self.verify_tickets_available(tickets)
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tickets.each do |data|
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next unless data[:quantity] != 0
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tl = TicketLevel.find(data[:ticket_level_id])
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next unless tl.limit && tl.limit > 0
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already_sold = Ticket.where('ticket_level_id = ?', data[:ticket_level_id]).sum('tickets.quantity')
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unless (already_sold + data[:quantity]) <= tl.limit
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raise NotEnoughQuantityError.new(TicketLevel, data[:ticket_level_id], data[:quantity], 'Oops! We sold out some of the tickets you wanted before ordering. Please refresh to see what tickets are still available.')
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end
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end
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end
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end
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