Transform modal: Return javascript query from modal (and populate modal with existing query)

[conorw]

This control is exactly what I was looking for... with one exception:

Is it possible to expose the JavaScript query that is generated in the transform modal?
Likewise, is it possible to populate the transform modal with an existing query?

[josdejong]

Thanks, good to hear. I'm not sure what you mean: do you mean copy/paste as an end user? (You can just edit the contents of the query in the "Query" input field). Or do you mean a programmatic API?

[conorw]

apologies @josdejong , I should have explained better:
Ideally, I want to be able to save the javascript transformation code that is built in the transformation modal dialog.
Hopefully the following quick and dirty PR should explain better #394

[josdejong]

Ah, yes, so you want to be able to programmatically initialize the query when opening the transform modal, and, I guess, get a callback with the applied query when the user clicks "Transform" in the modal. I like to open up the API for this!

We have to think through what API we want exactly. Some first thoughts:

• I think we'll have to implement an API for both the Transform modal and the Sort modal to be feature complete
• Besides the query field, the Transform modal also has a wizard. I think we should be able to set all off the state, not just query.
• We could introduce properties like query and onQuery. Or maybe we should introduce hooks like onTransformOpen and onTransformClose, allowing to get and set the query and all other state.