Get button state from on_click, on_change outside of the callback

bonobo2000 · February 18, 2020, 9:28pm

hey there,

I have a bunch of buttons defining the value of a variable, that I want to use as a parameter to an sql query. So if button state is equal 2019, the query will set the value of a variable to 2019.

If I understand correctly, I can run my query within the callback function that I pass to the on_click or on_event. The new argument would capture that. I was wondering if there is a way to get these values returned, so that I could run my query outside of the callback function. For example, by accessing the myobj._property_values["active"]…

thanks in advance…

bonobo2000 · February 18, 2020, 9:59pm

ok, this seems to be doing what I need…

Bryan · February 19, 2020, 1:29am

As long as the objects are in some accessible scope, you can just reference them like any Python variable. See e.g. the callback referencing all the sliders here:

github.com

bokeh/bokeh/blob/branch-3.0/examples/app/sliders.py

''' Present an interactive function explorer with slider widgets.

Scrub the sliders to change the properties of the ``sin`` curve, or
type into the title text box to update the title of the plot.

Use the ``bokeh serve`` command to run the example by executing:

    bokeh serve sliders.py

at your command prompt. Then navigate to the URL

    http://localhost:5006/sliders

in your browser.

'''
import numpy as np

from bokeh.io import curdoc
from bokeh.layouts import column, row

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bonobo2000 · February 19, 2020, 7:50pm

thx bryan,

I was defining them as static methods and ended up in a deadend…