Code style adjusted in sessions.py and __init__.py slightly simplified

flask_mongoengine/__init__.py

@@ -70,13 +70,12 @@ def _include_mongoengine(obj):
     """
     # TODO why do we need this? What's wrong with importing from the
     # original modules?
-    for module in (mongoengine, mongoengine.fields):
-        for attr_name in module.__all__:
-            if not hasattr(obj, attr_name):
-                setattr(obj, attr_name, getattr(module, attr_name))
+    for attr_name in mongoengine.__all__:
+        if not hasattr(obj, attr_name):
+            setattr(obj, attr_name, getattr(mongoengine, attr_name))
 
-                # patch BaseField if available
-                _patch_base_field(obj, attr_name)
+            # patch BaseField if available
+            _patch_base_field(obj, attr_name)
 
 
 def current_mongoengine_instance():

flask_mongoengine/sessions.py

@@ -1,4 +1,4 @@
-import datetime
+from datetime import timedelta, datetime
 import uuid
 
 from bson.tz_util import utc
@@ -49,12 +49,11 @@ class DBSession(db.Document):
 
         self.cls = DBSession
 
-    def get_expiration_time(self, app, session):
+    def get_expiration_time(self, app, session) -> timedelta:
         if session.permanent:
             return app.permanent_session_lifetime
-        if "SESSION_TTL" in app.config:
-            return datetime.timedelta(**app.config["SESSION_TTL"])
-        return datetime.timedelta(days=1)
+        # Fallback to 1 day session ttl, if SESSION_TTL not set.
+        return timedelta(**app.config.get("SESSION_TTL", {"days": 1}))
 
     def open_session(self, app, request):
         sid = request.cookies.get(app.session_cookie_name)
@@ -67,7 +66,7 @@ def open_session(self, app, request):
                 if not expiration.tzinfo:
                     expiration = expiration.replace(tzinfo=utc)
 
-                if expiration > datetime.datetime.utcnow().replace(tzinfo=utc):
+                if expiration > datetime.utcnow().replace(tzinfo=utc):
                     return MongoEngineSession(
                         initial=stored_session.data, sid=stored_session.sid
                     )
@@ -85,9 +84,9 @@ def save_session(self, app, session, response):
                 response.delete_cookie(app.session_cookie_name, domain=domain)
             return
 
-        expiration = datetime.datetime.utcnow().replace(
-            tzinfo=utc
-        ) + self.get_expiration_time(app, session)
+        expiration = datetime.utcnow().replace(tzinfo=utc) + self.get_expiration_time(
+            app, session
+        )
 
         if session.modified:
             self.cls(sid=session.sid, data=session, expiration=expiration).save()

flask_mongoengine/wtf/orm.py

@@ -56,7 +56,9 @@ def convert(self, model, field, field_args):
             kwargs.update(field_args)
 
         if kwargs["validators"]:
-            # Create a copy of the list since we will be modifying it.
+            # Create a copy of the list since we will be modifying it, and if
+            # validators set as shared list between fields - duplicates/conflicts may
+            # be created.
             kwargs["validators"] = list(kwargs["validators"])
 
         if field.required:
@@ -79,8 +81,6 @@ def convert(self, model, field, field_args):
                 return f.RadioField(**kwargs)
             return f.SelectField(**kwargs)
 
-        ftype = type(field).__name__
-
         if hasattr(field, "to_form_field"):
             return field.to_form_field(model, kwargs)