further improved representational methods

the_works/models.py

@@ -1,15 +1,22 @@
 from the_works.database import db
 from sqlalchemy.orm import relationship
 from sqlalchemy.ext.associationproxy import association_proxy
+import sys
 
 # add method to sqlalchemy.orm.decl_api.Model
 def _asdict(self):
-  return {col.key: "<BLOB>" if type(col.type) == db.types.BLOB else self.__getattribute__(col.key) for col in self.__table__.c} 
+  d = {}
+  for col in self.__table__.c:
+    if type(col.type) == db.types.BLOB:
+      d[col.key] = "NULL" if self.__getattribute__(col.key) == None else f"Blob ({sys.getsizeof(self.__getattribute__(col.key))} Bytes)"
+    else:
+      d[col.key] = self.__getattribute__(col.key)
+  return d
 db.Model._asdict = _asdict
 
 # override repr() method from sqlalchemy.orm.decl_api.Model 
 def __repr__(self):
-  return str(self._asdict())    
+  return f"Titelbild({str(self._asdict())})"    
 db.Model.__repr__ = __repr__
 
 class Text(db.Model):