65 lines
2.7 KiB
Python
65 lines
2.7 KiB
Python
from django.core.management.base import BaseCommand
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from shop.pdf import generate_pdf_letter
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from shop.email import send_invoice_email
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from shop.models import Order, Invoice
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from time import sleep
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class Command(BaseCommand):
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args = 'none'
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help = 'Send out invoices that have not been sent yet'
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def handle(self, *args, **options):
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self.stdout.write('Invoice worker running...')
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while True:
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### check if we need to generate any invoices
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for order in Order.objects.filter(paid=True, invoice__isnull=True):
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### generate invoice for this Order
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Invoice.objects.create(order=order)
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self.stdout.write('Generated Invoice object for order %s' % order)
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### check if we need to generate any pdf invoices
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for invoice in Invoice.objects.filter(pdf_generated=False):
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# put the dict with data for the pdf together
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formatdict = {
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'invoice': invoice,
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}
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# generate the pdf
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try:
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pdffile = generate_pdf_letter(
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filename=invoice.filename,
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template='invoice.html',
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formatdict=formatdict,
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)
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self.stdout.write('Generated pdf for invoice %s' % invoice)
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except Exception as E:
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self.stdout.write('ERROR: Unable to generate PDF file for invoice #%s. Error: %s' % (invoice.pk, E))
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continue
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# so, do we have a pdf?
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if not pdffile:
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self.stdout.write('ERROR: Unable to generate PDF file for invoice #%s' % invoice.pk)
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continue
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# update invoice object
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invoice.pdf_generated=True
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invoice.save()
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### check if we need to send out any invoices
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for invoice in Invoice.objects.filter(sent_to_customer=False, pdf_generated=True):
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# read the pdf invoice from the archive
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with open(settings.INVOICE_ARCHIVE_PATH+invoice.filename, 'r') as fh:
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pdffile = fh.read()
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# send the email
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if send_invoice_email(invoice=invoice, attachment=pdffile):
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self.stdout.write('OK: Invoice email sent to %s' % order.user.email)
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invoice.sent_to_customer=True
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invoice.save()
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else:
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self.stdout.write('ERROR: Unable to send invoice email for order %s to %s' % (order.pk, order.user.email))
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### pause for a bit
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sleep(60)
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