How to change order of the option on the Search Form Checkbox Popup

Control which options a search-form checkbox popup offers and in what order, using one filter in your child theme instead of the full alphabetical list of terms.

1 minute read

By default a checkbox field in the search form lists every term of its taxonomy. This article shows how to reorder those options, or narrow the popup down to just the ones you want.

Where this code goes

The snippet belongs in the functions.php file of your child theme — see how to use a child theme and how to add code that survives theme updates.

functions.php

add_filter('vehica/search/field/TAXONOMYID/terms', function() {
    return [
        \Vehica\Model\Term\Term::getById(TAGID1),
        \Vehica\Model\Term\Term::getById(TAGID2),
    ];
});

There are two things to fill in:

TAXONOMYID — the id of the field whose popup you are changing
TAGID — the id of each term you want to keep, listed in the order you want them shown

Filled in, it looks like this:

functions.php

add_filter('vehica/search/field/6670/terms', function() {
    return [
        \Vehica\Model\Term\Term::getById(2096),
        \Vehica\Model\Term\Term::getById(2106),
    ];
});

Find the TAXONOMYID

Go to Vehica Panel > Custom Fields, open the field for editing, and read the number from the page address.

Vehica Panel Custom Fields list (Year, Offer Type, Drive Type, Transmission, Fuel Type, Mileage, Engine Size, Cylinders, Color, Doors, Features), with green arrows on Custom Fields in the panel menu and on the EDIT button of the Features row

Settings screen of the Features field, field type Taxonomy, with Name and Slug set to Features; a green arrow points at the browser address bar, where the URL contains page=vehica_6670

Here the taxonomy id is 6670.

Find the TAGID

Open the term itself in the WordPress admin and read the tag_ID value from the page address.

WordPress Features taxonomy screen: Add New Features form on the left, term list on the right (360-degree camera, Blind spot alert, Bluetooth, Cooled seats, Keyless start), green arrows on Features in the menu and on the Edit link under Keyless start

Edit Features screen for the term Keyless start with the slug keyless-start; a green arrow points at the browser address bar, where the URL contains tag_ID=2096

Here the term id is 2096.

The result

With those two ids in place, the snippet becomes:

functions.php

add_filter('vehica/search/field/6670/terms', function() {
    return [
        \Vehica\Model\Term\Term::getById(2096),
        \Vehica\Model\Term\Term::getById(2106),
    ];
});

The popup is now limited to the terms you listed:

Keep reading

How to check Taxonomy Term ID (e.g. BMW, New York, Used, Coupe) – tag_ID How to change order of options in the taxonomy field on the front-end submit vehicle form (e.g. make)?

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