Variables - Automatic update code
Hello !
I read on the documentation that global variables can be dynamically modified at project run by auto execution the get_variables() code defined in Administration / Variables Automatic update code.
It seems nice but as I see it is Jython only, is there any way to use some contextual data like custom variables / user property / username / etc from there ?
Thanks in Advance !
Antoine
Answers
-
Zach Dataiker, Dataiku DSS Core Designer, Dataiku DSS Adv Designer, Registered Posts: 153 DataikerOptionsHi @agardenat
,You won't be able to access that information using the automatic update code since it uses Jython.
As an alternative, you could use Python code in a scenario to set the global variables. This uses regular Python, so you have full access to Python modules.
Preview of the scenario:
Example code that sets the "my_var" global variable:
from dataiku.scenario import Scenario scenario = Scenario() scenario.set_global_variables( my_var="foo" )Reference documentation: Scenarios (in a scenario)
Thanks,
Zach
-
Hi @ZachM
Thanks for your answer.
I sure can do that, but I will miss the "automatic" part which made it transparent, with no need to add code to scenarios.
Thanks,
Antoine
-
Zach Dataiker, Dataiku DSS Core Designer, Dataiku DSS Adv Designer, Registered Posts: 153 DataikerOptions
Hi @agardenat
,You can update the variables automatically by adding a trigger to the scenario. For example, a time-based trigger will cause the variables to be updated on a schedule, such as once every day.
Reference: Scenario Triggers.
-
Hi,
I believe the question was to be able to do such thing (set/update a variable dynamically) without using scenarios.
I have the same needs. For each project, I need to parameterise dynamically, some variables so that I can retrieve the values (user, time) at each execution and this, not in a scenarios (users can execute recipe outside a scenario).
This will allows to trace the use of runs during the design period.Is there a way to do that ?
Thanks -
Turribeach Dataiku DSS Core Designer, Neuron, Dataiku DSS Adv Designer, Registered, Neuron 2023 Posts: 1,757 NeuronOptionsWhy is not possible to use Scenarios and Scenario variables which are perfect as they are calculated at run time? Running parts of the flow randomly is not a deterministic approach. You can break your flow build in multiple scenarios to allow for piece meal building. I would suggest you start a new thread as it seems you have a slightly different requirement.
-
Yes sorry, I was in this thread because I found the same way as agardenat to do such thing : global variables can be dynamically modified at project run by auto execution the get_variables() code defined in Administration / Variables Automatic update code.
I fully agree with you for the scenario usage. But I canot prevent a user starts a new project, then create a handle on data then execute a recipe on it. For this use case, a global variables that can be dynamically modified at project level during execution would be helpfull.
