delta/python-packages/sqlalchemy.git/lib/sqlalchemy/mapping/mapper.py, branch 2020_tutorial

merged 0.2 branch into trunk; 0.1 now in sqlalchemy/branches/rel_0_1

2006-05-25T14:20:23+00:00

fixed a _get_criterion mismatch, cleaned up types + updated types doc

2006-05-05T17:23:00+00:00

save_obj/delete_obj need to specify column types to binds for primary key criterion

2006-05-04T20:27:18+00:00

"order_by" parameter propigated to inheriting mappers

2006-05-03T16:55:56+00:00

oracle ROW_NUMBER logic uses select.oid_column to get default order by

added temporary option "construct_new" to mapper which will cause the mapper to use new to create loaded instances instead of the init method

2006-04-23T20:37:53+00:00

mapper will verify class inheritance scheme; also will not re-init inherited property, as the improved attribute system seems to handle inheritance OK and allows the property to keep its correct initialization on the parent

2006-04-18T18:24:07+00:00

exceptions import in query

fix for [ticket:158] regarding translate row

2006-04-17T23:19:57+00:00

mapper's querying facilities migrated to new query.Query() object, which can receive session-specific context via the mapper.using() statement. reuslting object instances will be bound to this session, but query execution still handled by the SQLEngines implicit in the mapper's Table objects.

2006-04-06T21:12:00+00:00

session now propigates to the unitofwork UOWTransaction object, as well as mapper's save_obj/delete_obj via the UOWTransaction it receives. UOWTransaction explicitly calls the Session for the engine corresponding to each Mapper in the flush operation, although the Session does not yet affect the choice of engines used, and mapper save/delete is still using the Table's implicit SQLEngine.
changed internal unitofwork commit() method to be called flush().
removed all references to 'engine' from mapper module, including adding insert/update specific SQLEngine methods such as last_inserted_ids, last_inserted_params, etc. to the returned ResultProxy so that Mapper need not know which SQLEngine was used for the execute.
changes to unit tests, SelectResults to support the new Query object.

added explicit "session" argument to get(), select_whereclause in mapper, as well as throughout the call-chain for those. lazy loader honors the "session" of the parent object, + added simple unit test

2006-04-06T19:01:14+00:00

added 'entity_name' keyword argument to mapper. a mapper is now associated with a class via

2006-04-03T21:43:22+00:00

the class object as well as the optional entity_name parameter, which is a string defaulting to None.
any number of primary mappers can be created for a class, qualified by the entity name.  instances of those classes
will issue all of their load and save operations through their entity_name-qualified mapper, and maintain separate identity from an otherwise equilvalent object.