Can we pass a dynamic list in SELECT Parameter based on the value entered by user in other parameter

mohitbatra007

Hi,

I am trying to pass a dynamic list in select parameter (parameter-b) based on the text entered by user in a string parameter (parameter-a). I am not sure how to do this.

I am able to pass a list in select parameter using the following code:

import os

def do(payload, config, plugin_config, inputs):
load_file_list0= [i for i in os.listdir("/location/") if ".out" in i]
choices=[]
for i in load_file_list0:
choices_dir={}
choices_dir["value"]=i
choices_dir["label"]=i
choices.append(choices_dir)
return {"choices": choices}

But I want to do something like this:

def do(payload, config, plugin_config, inputs):
a= get_recipe_config()["parameter-a"]
load_file_list0= [i for i in os.listdir("/location/") if ".out" in i]
choices=[]
for i in load_file_list0:
if a.lower() in i.lower():
choices_dir={}
choices_dir["value"]=i
choices_dir["label"]=i
choices.append(choices_dir)
return {"choices": choices}

AurelienD

Hello,

In order to do dynamic SELECT, you will need to follow https://doc.dataiku.com/dss/latest/plugins/reference/params.html#dynamic-select-using-python
and you cannot use get_recipe_config() but retrieve the configuration from the `config` variable
So for your case it should be something like:

def do(payload, config, plugin_config, inputs):
    a= config["parameter-a"]
    load_file_list0= [i for i in os.listdir("/location/") if ".out" in i]
    choices=[]
    for i in load_file_list0:
        if a.lower() in i.lower():
            choices_dir={}
            choices_dir["value"]=i
            choices_dir["label"]=i
            choices.append(choices_dir)
    return {"choices": choices}

If you need to react dynamically to a change of parameter-a you will need to use a fully custom form:
https://doc.dataiku.com/dss/latest/plugins/reference/other.html#custom-settings-ui

Regards.
Aurelien