Populate Taxonomy ID dynamically

• Gregg

• February 24, 2018 at 4:06 am

Hi

I am using a frontend form to submit custom post type entries. Everything works fine except I am not able to populate dynamically the category from the select.

<select id="acf-field_5a903d3132d04" name="acf[field_5a903d3132d04]">
    <option value="1">Foo</option>
    <option value="2">Bar</option>
</select>

"new_post" => array(
    'post_type' => 'my_post',
    'post_status' => 'publish',
    'tax_input'     => array(
        'custom_tax_category' => array( 'annuaire_category' ),
        'custom_tax_tag' => array( $_POST['acf[field_5a903d3132d04]'] )
    ), 
),

Any help would be appreciated

• gummi

• February 24, 2018 at 9:08 am

G’day Mate,

the form name, name="acf[field_5a903d3132d04]" is representation of acf array with key ‘field_5a903d3132d04’.

So your value should be:
$_POST['acf']['field_5a903d3132d04'] 😉

Cheers

• Gregg

• February 25, 2018 at 4:06 am

Thanks but unfortunately it does not work

'new_post' => array(
    'post_type' => 'annuaire',
    'post_status' => 'publish',
    'tax_input'     => array(
        'custom_tax_category' => array( 'annuaire_category' ),
        'custom_tax_tag'      => array( $_POST['acf']['field_5a903d3132d04'] )
    ), 
),

Following code is well returning the select value when form is submited but it seems that data is not send with form.

$test = $_POST['acf']['field_5a903d3132d04'];
echo 'value ' . $test;

• gummi

• February 26, 2018 at 9:12 am

If the data isn’t sent from the form, you can dump out the post value before your code and see what’s the actual key is. (maybe there’s a typo in your field key)

echo '<pre>';
print_r($_POST['acf']);
echo '</pre>';

Another reason might be, the form is sending the value as a string, but the wp functions requires a pure integer. See last example in the doc, https://codex.wordpress.org/Function_Reference/wp_set_post_terms

So, your code might even need to cast the value with intval first.

'custom_tax_tag => array( intval($_POST['acf']['field_5a903d3132d04']) )

Cheers

• Gregg

• February 27, 2018 at 2:13 am

I have open a new thread https://support.advancedcustomfields.com/forums/topic/post-select-value/ because your code was good and helpful to get the taxonomy by key_field but I have another issue to make it set the category on my cpt.