Option to limit the number of selected items at the js level

[mlavin]

Hi Mark,
Can we get the client-side ability to limit the number of items that can be selected via AutoCompleteSelectMultipleWidget? I'm guessing that an option like this would help enforce proper usage in many web applications. For my usecase, it's how many dances a user can claim as his/her specialty.

It would be very convenient to be able to set this limit when declaring the widget or AutoCompleteSelectMultipleField in python and have that option relayed to the javascript.

Let me know if this is something you'd like to see implemented. I may have some time available next week.

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• Bitbucket: https://bitbucket.org/mlavin/django-selectable/issue/96
• Originally Reported By: Tai Vo
• Originally Created At: 2013-02-27T18:24:07.604

[mlavin]

While there isn't an option in the JS plugin that you could pass from the widget, it is currently possible to limit the number of items added on the client-side using the djselectableadd and djselectableremove events and returning false in the event handler. https://django-selectable.readthedocs.org/en/version-0.6.2/advanced.html#detecting-client-side-changes

Still this would need to be validated on the server-side which would have to fall to the field or the form rather than the widget which starts to creep out of scope for the project. But if you come up with something simple that you think would be helpful for most people then I'd love to see it.

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Original Comment By: Mark Lavin