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Question
· Oct 8, 2022

How to Print Out an Arbitrary Global via Embedded Python ?

#Embedded Python #Globals #ObjectScript #InterSystems IRIS

Hi, devs!

Consider you have an arbitrary global with an unknown amount of indexes.

How to print all the values to the terminal with Embedded Python?

With IRIS I'd do:

USER>ZWrite ^Global

Or with the following code:

ClassMethod PrintGlobal(gname) As %Status
{

    
    set global=$Name(@gname)

    set next=$Query(@global@(""))

    for {
    quit:next=""
    write !,next,@next

    set next=$Query(@next)

}

with embedded python if I know that global is 2-dimensional I can do:

ClassMethod PrintGlobal() As %Status [ Language = python ]
{
i=0
j=0
    for (key,value) in bs.query([i,j]):
        print(key,value)
}

But if I don't know the depth of indexes?

Thoughts?

Product version: IRIS 2022.1
Discussion (3)1
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Guillaume Rongier · Oct 9, 2022

query is the way to go :

import iris

g = iris.gref("^MyGlobal")

# Insert some data
g[1] = "my first line"
g[2] = "my second line"
g[1,"a"] = "my first line with a key"
g[1,"b"] = "my first line with a key"
g[2,"a"] = "my second line with a key"
g[2,"b"] = "my second line with a key"
g[3,"a",1] = "my third line with a key and a subkey"

for (key, value) in g.query():
    print(f"{key} -> {value}")

result :

['1'] -> my first line
['1', 'a'] -> my first line with a key
['1', 'b'] -> my first line with a key
['2'] -> my second line
['2', 'a'] -> my second line with a key
['2', 'b'] -> my second line with a key
['3'] -> None
['3', 'a'] -> None
['3', 'a', '1'] -> my third line with a key and a subkey
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