Python method; issues with status returned from run_class_method
In my Python script I import intersys2.pythonbind3 to create the connection and define a database object as db
I execute the method
res = self.db.run_class_method("%Library.GlobalEdit", "GetGlobalSize",[<db>, allocated,used])
This executes correctly as I loop through a list of databases.
Upon success I see that the return arg of "res" contains the string "status(0,)" which I interpret as successful. This is verified by the returned values of allocated and used being accurate. But I want to use the class/methods to get the status values from the returned structure
In reading the documents, I thought the statement:
status = self.db.run_class_method('%SYSTEM.Status', 'IsError', [res])
would return a value of 1 on error, but this statement always returns 1; even when res='status(0,)' which is indicative of success.
Any ideas about what I am missing or doing incorrectly?
The only success status is 1.
Anything else is an error or invalid status.
That is my point of confusion. The 'IsError' method returns a value of 1 which indicates an error. But the run_class_method() is returning valid allocated and used global sizes for the specified global. I am unclear how I am getting valid results and an error. These would seem to be mutually exclusive.
Have you tried executing the same code from the InterSystems terminal?
Also try:
text = self.db.run_class_method("%SYSTEM.Status", "GetErrorText", res) print(text)Class Reference of %SYSTEM.Status says:
classMethode IsError(statuscode As %Status) as %Boolean
So if you get [res] as (0,....) it is an ERROR!
and therefore the result of IsError should be 1. It is an Error.
Ok, trying to isolate my syntax error. I have re-reviewed the class specs but I am not seeing an issue. I have this:
allocated = 0
used = 0
db = "/data/testdb/"
global = "STRELPERF"
# Set args to pass by reference
list = [db,global,allocated,used]
# exec the class method to get the global size
res = self.db.run_class_method("%Library.GlobalEdit", "GetGlobalSize",list)
This is the call that returns the failure status of res(0,). The associated error text is :
ERROR #00: (no error description)
Since for other databases that do not contain the global I get the error:
ERROR #308: Global STRELPERF not found.
It seems that code clip is close but something that I am not seeing is missing. Any help would be appreciated.