mongoid.yml in mongoid-6.1.1

- old
+ new

@@ -32,12 +32,13 @@
         # The user's database roles.
         # roles:
         #   - 'dbOwner'
 
         # Change the default authentication mechanism. Valid options are: :scram,
-        # :mongodb_cr, :mongodb_x509, and :plain. (default on 3.0 is :scram, default
-        # on 2.4 and 2.6 is :plain)
+        # :mongodb_cr, :mongodb_x509, and :plain. Note that all authentication
+        # mechanisms require username and password, with the exception of :mongodb_x509.
+        # Default on mongoDB 3.0 is :scram, default on 2.4 and 2.6 is :plain.
         # auth_mech: :scram
 
         # The database or source to authenticate the user against.
         # (default: the database specified above or admin)
         # auth_source: admin
@@ -119,19 +120,28 @@
 
     # Raise an error when defining a scope with the same name as an
     # existing method. (default: false)
     # scope_overwrite_exception: false
 
+    # Raise an error when defining a field with the same name as an
+    # existing method. (default: false)
+    # duplicate_fields_exception: false
+
     # Use Active Support's time zone in conversions. (default: true)
     # use_activesupport_time_zone: true
 
     # Ensure all times are UTC in the app side. (default: false)
     # use_utc: false
 
     # Set the Mongoid and Ruby driver log levels when not in a Rails
     # environment. The Mongoid logger will be set to the Rails logger
     # otherwise.(default: :info)
     # log_level: :info
+
+    # Control whether `belongs_to` association is required. By default
+    # `belongs_to` will trigger a validation error if the association
+    # is not present. (default: true)
+    # belongs_to_required_by_default: true
 
     # Application name that is printed to the mongodb logs upon establishing a
     # connection in server versions >= 3.4. Note that the name cannot exceed 128 bytes.
     # app_name: MyApplicationName
 test: