ah. does VENDR have a primary key? it won't be mapped if not.
what's in base.classes.keys() ? base.classes['VENDR'] ?
On 03/11/2016 12:47 PM, Alex Hall wrote:
VENDR is right there, in base.classes and metadata.tables. Yet,
vendorTable = base.classes.VENDR
raises an AttributeError. Odd! There's nothing cap-sensitive about
__hasattr__ that I'm forgetting, is there? Or, could I somehow alias
the name before I try to access it, if that would help at all? This is
the only table in the CMS to have a name in all caps, but I need to
access it to look up manufacturer details for items.
On 3/11/16, Mike Bayer <clas...@zzzcomputing.com> wrote:
can you look in metadata.tables to see what it actually reflected ?
On 03/11/2016 12:09 PM, Alex Hall wrote:
That's weird: the name I see is exactly what I've been using, "VENDR".
All caps and everything. I tried using lowercase, just to see what it
would do, but it failed.
On 3/11/16, Mike Bayer <clas...@zzzcomputing.com> wrote:
On 03/11/2016 09:39 AM, Alex Hall wrote:
Hello list,
Finally, a pure SA question from me. I'm using Automap and the "only"
keyword to automap a subset of the tables in our CMS database. This
has worked perfectly thus far. Now, though, it's failing on a specific
table, and the only difference I can see is that this table's name is
in all caps, whereas the rest are all lowercase. Capitalization
shouldn't matter, right?
it does, as ALLCAPS is case sensitive and indicates quoting will be
used. How to handle this depends on the exact name that's in the
database and if it truly does not match case-insensitively.
Examine the output of:
inspect(engine).get_table_names()
find your table, and that's the name you should use.
Stranger still, the actual reflection doesn't
error out. Later, where I try to assign base.classes.MYTABLE to a
variable, is where I get an AttributeError. Here's my code:
engine = sqlalchemy.create_engine("mssql+pyodbc://%s:%s@%s"
%(username, password, dsn))
base = automap_base()
session = Session(engine)
metadata = sqlalchemy.MetaData()
desiredTables = ["table", "othertable", "VENDR"]
metadata.reflect(engine, only=desiredTables) #works fine
table = base.classes.table #fine
table2 = base.classes.othertable #fine
vendorTable = base.classes.VENDR #AttributeError
I've added and removed tables as I adjust this script, and all of them
work perfectly. This VENDR table is the first one in two days to cause
problems. If I iterate over all the classes in base.classes and print
each one, I don't even see it in that list, so SA isn't simply
transforming the name. This is probably a simple thing, but I don't
see the problem. Thanks for any suggestions.
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