dodati payment kodovi, generisanje kodova, pdf view,promena payment page

backend/core/utils.py

@@ -12,7 +12,7 @@ import matplotlib.pyplot as plt
 from django.contrib.staticfiles.finders import find
 import matplotlib.image as mpimg
 site_domain = settings.SITE_DOMAIN
-
+import random
 
 
 
@@ -342,3 +342,7 @@ def generate_residual_risk_graph(risks_with_controls):
     plt.close()
 
     return base64.b64encode(image_png).decode("utf-8")
+
+def generate_payment_code(length=6):
+    chars = 'ABCDEFGHJKLMNPQRSTUVWXYZ23456789'
+    return ''.join(random.choices(chars, k=length))