Hey all,
Before 0.4.5 I used this code to get the mapped class for a table. It
worked fine, but mapper_registry was made private in 0.4.5 and the
private function does not behave the same way for some reason. But as
this code is pretty nasty anyway I was wondering if there was a better
way to do this. If not, can anyone hint me how to make this work
again?
If you are wondering, I need this for asynchronous updates in
postgres. The modification table holds the table name for a
modification and inserted by a trigger.
Koen
classTableCache = dict()
def classForTable(tableName):
"""Returns the mapped class for a particular table name."""
if classTableCache == dict():
for table in metadata.table_iterator(reverse=False):
for mapper in mapperlib.mapper_registry.values():
if table == mapper.base_mapper.mapped_table:
# This is an extremely ugly hack that
only works when all patent
mapper names
# are longer than inherited mapper names
if classTableCache.has_key(table.name):
if len(str(mapper.class_)) <
len(str(classTableCache[table.name])):
classTableCache[table.name] = mapper.class_
else:
classTableCache[table.name] =
mapper.class_
return classTableCache[tableName]
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