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Filter contents of 1 Dropdown with value from another dropdown.

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  • October 20, 2021 at 5:11 AM #31404
    Jeremy ParrottJeremy Parrott
    Participant

    For example let's say I have an automotive site and I have a 'Make' dropdown with "BMW, Chevy, Chrysler, Dodge, Ford, etc" and if select "Ford" I want another 'Model' dropdown to only display only Ford models like 'Focus, Mustang, F150, etc."

    Is this a good use case for Query Args? I would appreciate a link or two on how to use Query Args too.

    Thanks!

    October 20, 2021 at 1:05 PM #31407
    Long NguyenLong Nguyen
    Moderator

    Hi Jeremy,

    The post or taxonomy field does not support getting the value from a field as an argument on live click. You need to create a custom field type and add some JavaScript code to do that.
    https://docs.metabox.io/custom-field-type/

    October 21, 2021 at 9:48 PM #31435
    Jeremy ParrottJeremy Parrott
    Participant

    Can I make this work if I use the "Hierarchical [X] Whether the post type is hierarchical." checkbox and make the Model CPT a child of the Make CPT or some combination thereof?

    October 21, 2021 at 9:55 PM #31436
    Jeremy ParrottJeremy Parrott
    Participant

    There's also the "Set as parent" option in the Field group. Maybe that in combination with the above might work?

    October 22, 2021 at 12:40 PM #31449
    Long NguyenLong Nguyen
    Moderator

    Hi,

    Yes, you can create a CPT make with some parent posts BMW, Chevy, Chrysler, Dodge, Ford and child posts. Then use the field post with the field type select_tree or checkbox_tree. Screenshot https://share.getcloudapp.com/rRuWLe2e

    The setting parent or "Set as parent" in the builder is to set the selected post in the box as the parent of the current edited post.
    https://docs.metabox.io/fields/post/#settings

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