I've run into a strangeness dealing with SWQL/SWIS. If I use the following query in SWQL Studio, it works fine. If I attempt to run the same query via SWIS (python flavor), I get a strange error.
I created a (Node) Custom Property called SLA_Sync_Time which is defined as a Date/Time custom property: not required, no default value.
Here's the (simple/sample) query:
SELECT TOP 10 NodeID, SLA_Sync_Time from Orion.NodesCustomProperties
When I run this in SWQL Studio, I get the 10 rows I would expect.
The python code looks like so:
import requests
import orionsdk
npm_server = '<server>'
npm_user = '<user>'
npm_password = '<password>'
requests.packages.urllib3.disable_warnings()
swis = orionsdk.SwisClient(npm_server, npm_user, npm_password)
sql = "SELECT TOP 10 NodeID, SLA_Sync_Time from Orion.NodesCustomProperties"
print swis.query(sql)['results']
This produces the following error:
requests.exceptions.HTTPError: 400 Client Error: Cannot set Column 'SLA_Sync_Time' to be null. Please use DBNull instead.
This is weird in that (a) I'm not trying to 'set' anything (so the message is particularly scary) and (b) it works in SWQL.
I have a few of these Date/Time properties, and all of them generate the same error.
What's the best work-around? Set a default date (I'd rather not, as that puts bogus data in my DB)? Update all of the fields to contain a DBNull (how)?
