configuring a custom widget subclass based on user entered data

Hi,

I am trying to create a custom widget that is a subclass of MultiWidget that creates a variable number of widgets based on previous user input. Which means I can't fully configure the widget in the form class. A simplified description of what I am trying to accomplish is to have one form that asks for a start date and an end date, then have the next form include this custom MultiWidget, which would use those two dates to create a CheckboxInput for each day in that range of dates.

I intend to build a table that looks like a calendar to put these widgets in, so I can't just do this with a for loop in the template.

The documentation I have seen for a subclass of a MultiWidget shows a hard coded tuple of widgets being created, but not a variable number. And I have seen how a Form subclass can supply arguments to a widget, but I don't see how the form class can get data from previous user input. For that I would need to be able to configure the widget from within the view function. Can I get access to the custom MultiWidget after the form creates it, and can I change the set of widgets in the MultiWidget after it has already been constructed (but before it has been rendered)?

David

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