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fab-manager/db/migrate/20200511075933_fix_accounting_periods.rb
2020-05-11 11:28:09 +02:00

73 lines
2.5 KiB
Ruby

# frozen_string_literal: true
# regenerate the accounting periods affected by the current bug (period totals are wrong due to wrong VAT computation)
class FixAccountingPeriods < ActiveRecord::Migration[5.2]
def change
# first, check the footprints
check_footprints
# if everything is ok, proceed with migration
# remove periods (backup their parameters in memory)
periods = backup_and_remove_periods
# recreate periods from memory dump
restore_periods(periods)
end
def check_footprints
if AccountingPeriod.count.positive?
last_period = AccountingPeriod.order(start_at: :desc).first
puts "Checking invoices footprints from #{last_period.end_at}. This may take a while..."
Invoice.where('created_at > ?', last_period.end_at).order(:id).each do |i|
raise "Invalid footprint for invoice #{i.id}" unless i.check_footprint
end
else
puts 'Checking all invoices footprints. This may take a while...'
Invoice.order(:id).all.each do |i|
raise "Invalid footprint for invoice #{i.id}" unless i.check_footprint
end
end
end
# will return an array of hash containing the removed periods data
def backup_and_remove_periods
return [] unless AccountingPeriod.where("created_at > '2019-08-01' AND created_at < '2020-05-12'").count.positive?
puts 'Removing erroneous accounting archives...'
# 1. remove protection for AccountingPeriods
execute("DROP RULE IF EXISTS accounting_periods_del_protect ON #{AccountingPeriod.arel_table.name};")
# 2. backup AccountingPeriods in memory
periods = []
AccountingPeriod.where("created_at > '2019-08-01'").each do |p|
periods.push(
start_at: p.start_at,
end_at: p.end_at,
closed_at: p.closed_at,
closed_by: p.closed_by
)
end
# 3. Delete periods from database
AccountingPeriod.where("created_at > '2019-08-01'").each do |ap|
execute("DELETE FROM accounting_periods WHERE ID=#{ap.id};")
end
periods
end
def restore_periods(periods)
return unless periods.size.positive?
# 1. recreate AccountingPeriods
puts 'Recreating accounting archives. This may take a while...'
periods.each do |p|
AccountingPeriod.create!(
start_at: p[:start_at],
end_at: p[:end_at],
closed_at: p[:closed_at],
closed_by: p[:closed_by]
)
end
# 2. reset protection for AccountingPeriods
execute("CREATE RULE accounting_periods_del_protect AS ON DELETE TO #{AccountingPeriod.arel_table.name} DO INSTEAD NOTHING;")
end
end