How do I bulk delete ontology objects?

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1

In ontology explorer I can use the delete action to delete one at a time, but it won’t work when selecting more than one ontology object. I assume this means I need a new action to delete many at time? Not sure how to do this…

2

Deleting objects in bulk is not directly configurable from the Ontology Manager to add a layer of protection here.

To set this up manually, create the following Typescript function:

@OntologyEditFunction()
public deleteMultipleObjects(objects: ObjectSet<DemoObjectType>): void {
   objects.all().forEach(o => {
      o.delete()
   })
}

Then make sure you wrap this function in an action and you can pass an object set through to be deleted in bulk!

3

An action can be applied to multiple objects by toggling “Allow multiple values” in the object reference parameter. Then in Workshop, an Object Table can use “enable multi-select”, which creates checkboxes for each row and a “Select all” checkbox in the table headers row. These selected objects can then be collectively passed to the action (example below).

image

I don’t know if there is a limit to the number of objects that can be deleted by an action.

More info: palantir foundry - How can I apply an Action to more than one object in a Workshop table? - Stack Overflow

4

Update: This solved the issue – An action can be applied to multiple objects by toggling “Allow multiple values” in the object reference parameter. Then in Workshop, an Object Table can use “enable multi-select”, which creates checkboxes for each row and a “Select all” checkbox in the table headers row. These selected objects can then be collectively passed to the action.

https://community.palantir.com/t/how-to-bulk-apply-an-action-function-to-all-existing-objects/963/2

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