(20250225) fmlllll

models/api/finstitutions/payments/request.py

@@ -48,6 +48,10 @@ from bson.objectid import ObjectId
 # To work with currencies:
 import pycountry
 
+# For random strings:
+import random
+import string
+
 
 #   *****************************************************************************************************************
 #  *****                                                                                                          ****
@@ -199,7 +203,7 @@ class PGPaymentRequestData(BaseModel):
         examples = ["INR", "USD", "KES"]
     )
 
-    description: str | None = Field(
+    description: str = Field(
         description = "a short, human-readable description of the payment",
         frozen = True
     )
@@ -240,6 +244,10 @@ class PGPaymentRequestData(BaseModel):
         if currency is None: raise ValueError("invalid currency code, please use iso 4217 standard")
         return value
 
+    @field_validator("description", mode = "before")
+    def ensure_description(cls, value):
+        if value is None: value = "rndm_" + "".join(random.choices(string.ascii_letters + string.digits, k = 20))
+
     @field_validator("tags", mode = "after")
     def null_to_empty_list(cls, value):
         return [] if value is None else value