Files
PyRIGS/RIGS/signals.py
2017-05-12 20:56:01 +01:00

99 lines
3.0 KiB
Python

import cStringIO as StringIO
import re
import urllib2
from io import BytesIO
import reversion
from PyPDF2 import PdfFileReader, PdfFileMerger
from django.conf import settings
from django.contrib.staticfiles.storage import staticfiles_storage
from django.core.mail import EmailMessage, EmailMultiAlternatives
from django.template.loader import get_template
from premailer import Premailer
from z3c.rml import rml2pdf
from RIGS import models
def send_eventauthorisation_success_email(instance):
# Generate PDF first to prevent context conflicts
context = {
'object': instance.event,
'fonts': {
'opensans': {
'regular': 'RIGS/static/fonts/OPENSANS-REGULAR.TTF',
'bold': 'RIGS/static/fonts/OPENSANS-BOLD.TTF',
}
},
'receipt': True,
'current_user': False,
}
template = get_template('RIGS/event_print.xml')
merger = PdfFileMerger()
rml = template.render(context)
buffer = rml2pdf.parseString(rml)
merger.append(PdfFileReader(buffer))
buffer.close()
terms = urllib2.urlopen(settings.TERMS_OF_HIRE_URL)
merger.append(StringIO.StringIO(terms.read()))
merged = BytesIO()
merger.write(merged)
# Produce email content
context = {
'object': instance,
}
if instance.email == instance.event.person.email:
context['to_name'] = instance.event.person.name
subject = "N%05d | %s - Event Authorised" % (instance.event.pk, instance.event.name)
client_email = EmailMultiAlternatives(
subject,
get_template("RIGS/eventauthorisation_client_success.txt").render(context),
to=[instance.email],
reply_to=[settings.AUTHORISATION_NOTIFICATION_ADDRESS],
)
css = staticfiles_storage.path('css/email.css')
html = Premailer(get_template("RIGS/eventauthorisation_client_success.html").render(context),
external_styles=css).transform()
client_email.attach_alternative(html, 'text/html')
escapedEventName = re.sub('[^a-zA-Z0-9 \n\.]', '', instance.event.name)
client_email.attach('N%05d - %s - CONFIRMATION.pdf' % (instance.event.pk, escapedEventName),
merged.getvalue(),
'application/pdf'
)
if instance.event.mic:
mic_email_address = instance.event.mic.email
else:
mic_email_address = settings.AUTHORISATION_NOTIFICATION_ADDRESS
mic_email = EmailMessage(
subject,
get_template("RIGS/eventauthorisation_mic_success.txt").render(context),
to=[mic_email_address]
)
# Now we have both emails successfully generated, send them out
client_email.send()
mic_email.send()
def on_revision_commit(instances, **kwargs):
for instance in instances:
if isinstance(instance, models.EventAuthorisation):
send_eventauthorisation_success_email(instance)
reversion.revisions.post_revision_commit.connect(on_revision_commit)