some comments...
> 2. If there a way, to handle functions in cross-database manner?
> I've need to write something like this, for max function which
> exists on sqlite but absent in mysql (and if() visa-versa):
- u can at least get that 'if...mysql' out of the actual code, just
define a global if_func( usualargs, aggregator=None) and do swicthing
inside there. Or, better, define the if_func() as method on the
aggregator itself (that is, the mapperExtension?) thus separating
somewhat implementation from usage.
- Max.onupdate will recurse forever in the else:
- the min/max has to be redone not to use maxint (or any other
machine/value limit) - one 'if' more..
- why returning a dict if it never contains more than 1 value?
it clutters your code a lot... maybe 'return something' or None (or
raise something) would be better.. eventualy making some generic
updater like:
def do_updates( self, instance, table, fields, method, condition):
updates = {}
for f in fields:
r = getattr( f, method)( self, instance)
if r is not None: updates[ f.target.name] = r
table.update( condition, values=updates).execute()
ah, nevermind.
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