Moving ID random generation to the SQL db instead. General clean up.

app/models/event_badge_models.py

@@ -1,4 +1,4 @@
-import datetime, hashlib, logging, os, pytz, redis, secrets
+import datetime, pytz
 
 from typing import Dict, List, Optional, Set, Union
 from pydantic import BaseModel, EmailStr, Field, Json, PrivateAttr, ValidationError, validator
@@ -18,7 +18,6 @@ class Event_Badge_Base(BaseModel):
     id_random: Optional[str] = Field(
         **base_fields['event_badge_id_random'],
         alias = 'event_badge_id_random',
-        default_factory = lambda:secrets.token_urlsafe(default_num_bytes),
     )
     id: Optional[int] = Field(
         alias = 'event_badge_id'