naming parameter views of repeated charts + interactivity

[mattijn]

I was re-reading this comment vega/vega-lite#8446 (comment), but I'm not able to get

• repeat charts + interactivity

to work anymore.

The following views definition: <view-name>child__<repeat-row>_<data-field><repeat-column>_<data-field> does not give interactivity in the charts with VL5.7.

See also this example where the interactivity (here zooming through "bind": "scales") does not work anymore Open the Chart in the Vega Editor

I tried a few things and inspect this PR at the VL repository, but I can't find a way how to make this work again. Any idea @domoritz?

(issue distilled from #2849)

[mattijn]

Wrong repo: vega/vega-lite#8845

[mattijn]

I get the interactivity if I add a _ between the view name and child__, see this working spec. Or is this not what you wanted to achieve?

Originally posted by @binste in vega/vega-lite#8845 (comment)

[mattijn]

I suspect this line, https://github.com/altair-viz/altair/blob/master/altair/vegalite/v5/api.py#L3313, should include a leading _ in front of child__, return v + "_child__" + r or return '_'.join([v, 'child_', r]

[mattijn]

Fixed by #3030.