Update field for multiple choose with array

• Mat

• June 22, 2021 at 9:03 pm

Hello,

i got some issue with the function update_field()

How update multiple value with include the array “value/label”.

Example :

        // first array from old get_field, return this structure
	$arr = array(
			  "0" => array(
			    "value" => "test1",
			    "label" => "Test 1"
			   ),
			  "1" => array(
			    "value" =>"test2",
			    "label" => "Test 2"
			  )
		  );

	echo '<pre>';
		echo var_dump($arr);
	echo '</pre>';

	update_field('field_test', $arr, $post_id);

	$arr2 = get_field('field_test', $post_id);

	echo '<pre>';
		echo var_dump($arr2);
	echo '</pre>';

return :

array(2) {
  [0]=>
  array(2) {
    ["value"]=>
    string(5) "Array"
    ["label"]=>
    string(5) "Array"
  }
  [1]=>
  array(2) {
    ["value"]=>
    string(5) "Array"
    ["label"]=>
    string(5) "Array"
  }
}

Thanks for help

• Mat

• June 22, 2021 at 10:43 pm

Ok i find the issue,

for valid the update field, we must return only the value (get_field without format), like :

	$arr = array(
			  "0" => "test1",
			  "1" => "test2"
		  );

Then the core ACF will save the field correctly with value.

But, i use the get_fields() in my API, then the developper of APP from my WordPress, return all fields with value/label, so i must modified the core of ACF.

like :
includes\fields\class-acf-field-select.php – line 526

		
if( is_array($value) ) {
    //$value = array_map('strval', $value); // OLD // remove array and up the value in parent array

    // will print the array and select only the value
    foreach ($value as $key => $val) {
        // check if have more 2 characters, some field return 1 letter :/
        if ( strlen($val['value']) > 2 ) {
		$value[$key] = $val['value'];
	} else {
		$value = array_map('strval', $value);
	}
    }
}

That quick code is used for select field and checkbox field.

Can you add some filter for help developper ?

thanks,
Best Regards, Mat.

• Mat

• June 24, 2021 at 6:55 pm

Hello,

i clean the code

		
if( is_array($value) ) {

	foreach ($value as $key => $val) {

		//echo var_dump($val);
		if ( isset($val['value']) ) {
			$value[$key] = $val['value']; // when value is available, like return value/label with API in json
		} else {
			$value = array_map('strval', $value); // will get directly the parent array
		}

	}

}

@team, do you need more informations for apply this fix to ACF ?

Thanks