Insertion error

[Paul Westin]

I've been converting a few scripts from CQL to Pycassa, and have hit a brick wall when it comes to inserting rows.

I first tried inserting with an IntegerType comparator, and now a UUIDType, and I can't seem to get either to work.

Versions:
    Python 2.7.3
    Cassandra 1.2.3-SNAPSHOT
    >>> pycassa.__version__
    '1.8.0'

This is a minimal example of trying to insert a new UUID row:

https://gist.github.com/pilate/2b0b8751bbcf1563c913

Passing a UUID as the key name gives me the error:

    A str or unicode value was expected, but UUID was received instead (5c91fb8c-7392-416a-a698-7e96a39bffa2)

If I wrap that UUID in a str() call, it tells me:

    Argument for a v1 UUID column name or value was neither a UUID, a datetime, or a number


Changing it to IntegerType, and trying to pass int()'s gives me something similar:

    unsupported operand type(s) for &: 'int' and 'str'


I feel like I have to be doing something extremely wrong here; Any suggestions?

[Tyler Hobbs]

The comparator applies to column names.  I think you're looking for key_validation_class, which applies to row keys.

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Tyler Hobbs
DataStax

[Paul Westin]

That makes sense! I added that to the column family creation, and double checked before insertion by printing column_name_class and key_validation_class:

https://gist.github.com/pilate/2b0b8751bbcf1563c913

Output:

UUIDType UUIDType

Argument for a v1 UUID column name or value was neither a UUID, a datetime, or a number

[Paul Westin]

Arg, had to drop the column_name_class; Thanks a ton!