create_promotional_image

create_promotional_image.py

import io
from .models import Coupon
from .utils import create_png_from_svg_template

def create_promotional_image(coupon_id):
    coupon = Coupon.objects.get(id=coupon_id)

    with io.BytesIO() as output_file:
        create_png_from_svg_template(
            "coupon/templates/promotional-template.svg",
            {"_WIDTH": 400, "_HEIGHT": 200, "_PROMO_CODE": "ABCD1234"},
            output_file,
        )
        coupon.marketing_image.save(f"coupon-{coupon.code}.png", output_file)
        coupon.save()
    
    return coupon.marketing_image.url