def add_extra_instance(self):
for obj in self.session.new:
core = None
if hasattr(obj, "_from_load"):
continue
table = get_table_from_instance(obj, self.database)
if table.entity == True:
core = obj._rel__core
if not core:
core = self.database.get_instance("_core")
obj._rel__core = core
core.type = unicode(table.name)
entity = self.database.get_instance("_core_entity")
entity.table = unicode(table.name)
core._rel_primary_entity = entity
self.add(obj)
self.add(core)
self.add(entity)
elif table.relation == True:
core = obj._rel__core
if not core:
core = self.database.get_instance("_core")
obj._rel__core = core
core.type = unicode(table.name)
table = obj._table
primary_id = obj._primary
secondary_id = obj._secondary
core_entity_cls = self.database["_core_entity"].sa_class
primary_obj = self.query(core_entity_cls).get(primary_id)
secondary_obj = self.query(core_entity_cls).get(secondary_id)
##FIXME make a better error, a validation rule?
assert(primary_obj.table) in table.primary_entities
assert(secondary_obj.table) in table.secondary_entities
core._rel_primary_entity = primary_obj
core._rel_secondary_entity = secondary_obj
self.add(primary_obj)
self.add(secondary_obj)
self.add(core)
self.add(obj)
elif table.info_table == True:
if not obj._rel__core:
core_id = obj._core_id
core_cls = self.database["_core"].sa_class
core = self.query(core_cls).get(core_id)
assert(core.type) in table.valid_core_types
obj._rel__core = core
self.add(core)
self.add(obj)
else:
core = obj._rel__core
if core:
self.object_store["core"].add(core)
def __init__(self, obj, database, log=False, id=False, modified=False):
self.obj = obj
self.database = database
self.table = util.get_table_from_instance(obj, database)
self.paths = self.table.paths
self.log = log
self.id = id
self.modified = modified
self.next_keys = {}
self.get_next_keys()
self.data = self.make_single_row(obj, "root", self.table)
def add_logged_instances(self):
for obj in self.session.dirty:
table = get_table_from_instance(obj, self.database)
if not table.logged:
continue
logged_instance = self.database.get_instance("_log_%s"%table.name)
changed = False
for column in table.columns.keys():
a, b, c = attributes.get_history(obj, column,
passive = False)
#logger.info (repr(a)+repr(b)+repr(c))
if c:
setattr(logged_instance, column, c[0])
changed = True
else:
setattr(logged_instance, column, getattr(obj, column))
if changed:
setattr(logged_instance, "_logged_table_id", obj.id)
#setattr(logged_instance, table.name + "_logged", obj)
self.add(logged_instance)
