emailing_customers.py

from django.http import HttpResponse	
from django.shortcuts import get_object_or_404	

from . import models	
from . import utils	


def send_messages(request, merchant_id):
    merchant = get_object_or_404(models.Merchant, id=merchant_id)
    customers = models.Customer.objects.filter(merchant=merchant)
    for customer in customers:
        message = utils.generate_message(customer)
        utils.send_message(customer, message)

    return HttpResponse('{} messages sent for merchant: {}'.format(customers.count(), merchant.name))