On Oct 31, 2006, at 12:27 PM, Jesus Cea wrote:

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> Mike Orr wrote:
>> The only reason this came up is that
>> the root object is a PersistentDict and is not overridable.  I still
>> suggest a
>> callable arg in the storage constructor that if present returns an
>> initialized root object (any subclass of PersistentObject) to seed
>> the
>> database if it doesn't exist.  This both allows for an alternate root
>> class and provides a convenient place to put your database-setup
>> code;
>> e.g., to set up the empty collections needed by the rest of the
>> application.

To make it easier to control the class of the root that
is created for an empty database, the devel version of the
code now has a "root_class" keyword argument (default None)
on the Connection constructor.  If not given, we get the
current behavior.  If a root_class value is given, and
the database has no root object, a new one is made with
the given class.