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<?php
function psp_update_sub_field( $selector, $value, $post_id = false ) {
// filter post_id
// $post_id = acf_get_valid_post_id( $post_id );
// vars
$field = false;
$name = '';
// within a have_rows loop
if( is_string($selector) ) {
// loop over global data
if( !empty($GLOBALS['acf_field']) ) {
foreach( $GLOBALS['acf_field'] as $row ) {
// add to name
$name .= "{$row['name']}_{$row['i']}_";
// override $post_id
$post_id = $row['post_id'];
}
}
// get sub field
$field = get_sub_field_object( $selector );
// create dummy field
if( !$field ) {
$field = acf_get_valid_field(array(
'name' => $selector,
'key' => '',
'type' => '',
));
}
// append name
$name .= $field['name'];
// update name
$field['name'] = $name;
} elseif( is_array($selector) ) {
// validate
if( count($selector) < 3 ) {
return false;
}
// vars
$parent_name = acf_extract_var( $selector, 0 );
// load parent
$field = get_field_object( $parent_name, $post_id, false, false );
// add to name
$name .= "{$field['name']}";
// sub fields
foreach( $selector as $s ) {
if( is_numeric($s) ) {
$row_i = intval($s) - 1;
// add to name
$name .= "_{$row_i}";
} else {
// update parent
$field = acf_get_sub_field( $s, $field );
// create dummy field
if( !$field ) {
$field = acf_get_valid_field(array(
'name' => $s,
'key' => '',
'type' => '',
));
}
// add to name
$name .= "_{$field['name']}";
}
// if
}
// foreach
// update name
$field['name'] = $name;
}
// save
return acf_update_value( $value, $post_id, $field );
}
?>