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fab-manager/app/models/event.rb

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class Event < ActiveRecord::Base
include NotifyWith::NotificationAttachedObject
has_one :event_image, as: :viewable, dependent: :destroy
accepts_nested_attributes_for :event_image, allow_destroy: true
has_many :event_files, as: :viewable, dependent: :destroy
accepts_nested_attributes_for :event_files, allow_destroy: true, reject_if: :all_blank
belongs_to :category
validates :category, presence: true
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has_many :reservations, as: :reservable, dependent: :destroy
has_and_belongs_to_many :event_themes, join_table: :events_event_themes, dependent: :destroy
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belongs_to :age_range
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belongs_to :availability, dependent: :destroy
accepts_nested_attributes_for :availability
attr_accessor :recurrence, :recurrence_end_at
after_create :event_recurrence
before_save :update_nb_free_places
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# update event updated_at for index cache
after_save -> { self.touch }
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def name
title
end
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def themes
self.event_themes
end
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def recurrence_events
Event.includes(:availability).where('events.recurrence_id = ? AND events.id != ? AND availabilities.start_at >= ?', recurrence_id, id, Time.now).references(:availabilities)
end
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def safe_destroy
reservations = Reservation.where(reservable_type: 'Event', reservable_id: id)
if reservations.size == 0
destroy
else
false
end
end
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# def reservations
# Reservation.where(reservable: self)
# end
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private
def event_recurrence
if recurrence.present? and recurrence != 'none'
case recurrence
when 'day'
on = nil
when 'week'
on = availability.start_at.wday
when 'month'
on = availability.start_at.day
when 'year'
on = [availability.start_at.month, availability.start_at.day]
else
end
r = Recurrence.new(every: recurrence, on: on, starts: availability.start_at+1.day, until: recurrence_end_at)
r.events.each do |date|
days_diff = availability.end_at.day - availability.start_at.day
start_at = DateTime.new(date.year, date.month, date.day, availability.start_at.hour, availability.start_at.min, availability.start_at.sec, availability.start_at.zone)
end_date = date + days_diff.days
end_at = DateTime.new(end_date.year, end_date.month, end_date.day, availability.end_at.hour, availability.end_at.min, availability.end_at.sec, availability.end_at.zone)
if event_image
ei = EventImage.new(attachment: event_image.attachment)
end
efs = event_files.map do |f|
EventFile.new(attachment: f.attachment)
end
event = Event.new({
recurrence: 'none',
title: title,
description: description,
event_image: ei,
event_files: efs,
availability: Availability.new(start_at: start_at, end_at: end_at, available_type: 'event'),
availability_id: nil,
category_id: category_id,
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amount: amount,
reduced_amount: reduced_amount,
nb_total_places: nb_total_places,
recurrence_id: id
})
event.save
end
update_columns(recurrence_id: id)
end
end
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def update_nb_free_places
if nb_total_places.nil?
self.nb_free_places = nil
else
reserved_places = reservations.map{|r| r.nb_reserve_places + r.nb_reserve_reduced_places}.inject(0){|sum, t| sum + t }
self.nb_free_places = (nb_total_places - reserved_places)
end
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end
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end