bornhack-website/src/shop/invoiceworker.py

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from django.core.files import File
from django.conf import settings
from django.utils import timezone
from shop.pdf import generate_pdf_letter
from shop.email import send_invoice_email, send_creditnote_email
from shop.models import Order, CustomOrder, Invoice, CreditNote
from decimal import Decimal
import logging
def run_invoice_worker():
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)
# check if we need to generate any invoices for shop orders
for order in Order.objects.filter(paid=True, invoice__isnull=True):
# generate invoice for this Order
Invoice.objects.create(order=order)
logger.info('Generated Invoice object for %s' % order)
# check if we need to generate any invoices for custom orders
for customorder in CustomOrder.objects.filter(invoice__isnull=True):
# generate invoice for this CustomOrder
Invoice.objects.create(customorder=customorder)
logger.info('Generated Invoice object for %s' % customorder)
# check if we need to generate any pdf invoices
for invoice in Invoice.objects.filter(pdf=''):
# put the dict with data for the pdf together
formatdict = {
'invoice': invoice,
}
# generate the pdf
try:
if invoice.customorder:
template='pdf/custominvoice.html'
else:
template='pdf/invoice.html'
pdffile = generate_pdf_letter(
filename=invoice.filename,
template=template,
formatdict=formatdict,
)
logger.info('Generated pdf for invoice %s' % invoice)
except Exception as E:
logger.error('ERROR: Unable to generate PDF file for invoice #%s. Error: %s' % (invoice.pk, E))
continue
# so, do we have a pdf?
if not pdffile:
logger.error('ERROR: Unable to generate PDF file for invoice #%s' % invoice.pk)
continue
# update invoice object with the file
invoice.pdf.save(invoice.filename, File(pdffile))
invoice.save()
###############################################################
# check if we need to send out any invoices (only for shop orders, and only where pdf has been generated)
for invoice in Invoice.objects.filter(order__isnull=False, sent_to_customer=False).exclude(pdf=''):
# send the email
if send_invoice_email(invoice=invoice):
logger.info('OK: Invoice email sent to %s' % invoice.order.user.email)