Modifying existing dashboard via arcgis.apps.dashboard

JanTeisinger

I am trying to modify an existing dashboard using arcgis.apps.dashboard Python module, but I am unable to create the Dashboard object from an existing item. I was searching for examples, but all documents I have seen only have directions how to create new dashboards. 

I am attempting to save all older dashboards to the new version 47+ using the Py API. I was hoping I can create the dashboard object from the existing older version of the dashboard and then use the .save() function. 

How can I modify an existing dashboard? 

The following code will fail, as it appears the Dashboard object does not allow passing in the item object from gis.content.get()

dashboard = Dashboard(item)
TypeError: __init__() takes 1 positional argument but 2 were given

 

    from arcgis.apps.dashboard import Dashboard
    item = gis.content.get("123456789abcdefgetc")
    dashboard = Dashboard(item)    
    print (dashboard.title)

 

 

Clubdebambos

Hi @JanTeisinger 

I recall attempting a similar task, you might only be able to create a new Dashboard object using the Dashboard module.

Maybe some of the workflow I have done previously might help figure some things out. I have a dashboard template and I export this as JSON and save to a .json file, in below script.

from arcgis.gis import GIS
import json

gis = GIS("home")

dsh_item = gis.content.get("***dsh_item_id***")

dsh_tem_data = dsh_item.get_data()

print(json.dumps(dsh_tem_data, indent=4, sort_keys=True))

You can manipulate this JSON in a notepad and then re-associate it to a copied version of the dashboard through an update.

from arcgis.gis import GIS
import json

## open the dashboard template json
## I'd have manipulated this to point to different datasets etc
with open(r"C:\path\to\file.json") as json_data:
    data = json.load(json_data)

# connect to AGOL
gis = GIS("home")

## the standard Dashboard template that the JSON was taken from
dsh_item = gis.content.get("***dsh_item_id***")

## copy and save the dashboard
new_dsh = dsh_item.copy(title="New_Title", tags="tag1,tag2,tag3", snippet='Enter summary', description='Enter desc')
dsh_data = new_dsh.get_data()

## apply new JSON to update the copied dashboard
item_properties = {"text":data}
new_dsh.update(item_properties=item_properties)

You will need to become familiar with how the JSON is formatted for a Dashboard, you can do this by creating different Dashboards an exporting the JSON to see how it all works. I haven't done much work with them myself but hopefully some of the stuff above is helpful.