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self.same_receipt_expense_ids = [Command.clear()]
expenses_with_attachments = self.filtered(lambda expense: expense.attachment_ids)
if not expenses_with_attachments:
return
expenses_groupby_checksum = dict(self.env['ir.attachment']._read_group(domain=[
('res_model', '=', 'hr.expense'),
('checksum', 'in', expenses_with_attachments.attachment_ids.mapped('checksum'))],
groupby=['checksum'],
aggregates=['res_id:array_agg'],
))
for expense in expenses_with_attachments:
same_receipt_ids = set()
for attachment in expense.attachment_ids:
same_receipt_ids.update(expenses_groupby_checksum[attachment.checksum])
same_receipt_ids.remove(expense.id)
expense.same_receipt_expense_ids = [Command.set(list(same_receipt_ids))]
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