def get_available_placeholders(event, base_parameters):
if 'order' in base_parameters:
base_parameters.append('invoice_address')
params = {}
for r, val in register_mail_placeholders.send(sender=event):
if not isinstance(val, (list, tuple)):
val = [val]
for v in val:
if all(rp in base_parameters for rp in v.required_context):
params[v.identifier] = v
return params
def get_email_context(**kwargs):
from pretix.base.models import InvoiceAddress
event = kwargs['event']
if 'order' in kwargs:
try:
kwargs['invoice_address'] = kwargs['order'].invoice_address
except InvoiceAddress.DoesNotExist:
kwargs['invoice_address'] = InvoiceAddress()
ctx = {}
for r, val in register_mail_placeholders.send(sender=event):
if not isinstance(val, (list, tuple)):
val = [val]
for v in val:
if all(rp in kwargs for rp in v.required_context):
ctx[v.identifier] = v.render(kwargs)
return ctx
