function acf_copy_postmeta($from_post_id, $to_post_id)
{
// get all postmeta
$meta = get_post_meta($from_post_id);
// bail early if no meta
if (!$meta) {
return;
}
// loop
foreach ($meta as $name => $value) {
// attempt to find key value
$key = acf_maybe_get($meta, '_' . $name);
// bail ealry if no key
if (!$key) {
continue;
}
// update vars
$value = $value[0];
$key = $key[0];
// bail early if $key is a not a field_key
if (!acf_is_field_key($key)) {
continue;
}
// get_post_meta will return array before running maybe_unserialize
$value = maybe_unserialize($value);
// add in slashes
// - update_post_meta will unslash the value, so we must first slash it to avoid losing backslashes
// - https://codex.wordpress.org/Function_Reference/update_post_meta#Character_Escaping
if (is_string($value)) {
$value = wp_slash($value);
}
// update value
acf_update_metadata($to_post_id, $name, $value);
acf_update_metadata($to_post_id, $name, $key, true);
}
}
function delete_row($selector, $row = 1, $post_id = false)
{
// filter post_id
$post_id = acf_get_valid_post_id($post_id);
// get field
$field = acf_maybe_get_field($selector, $post_id);
// bail early if no field
if (!$field) {
return false;
}
// get value
$rows = acf_get_value($post_id, $field);
// bail early if no value
if (empty($rows)) {
return false;
}
// deincrement
if ($row == count($rows)) {
acf_update_metadata($post_id, $field['name'], $row - 1);
}
// update sub field values
foreach ($rows[0] as $k => $v) {
update_sub_field(array($field['key'], $row, $k), null, $post_id);
}
// return
return true;
}
function acf_update_value($value = null, $post_id = 0, $field)
{
// vars
$return = false;
// strip slashes
if (acf_get_setting('stripslashes')) {
$value = stripslashes_deep($value);
}
// filter for 3rd party customization
$value = apply_filters("acf/update_value", $value, $post_id, $field);
$value = apply_filters("acf/update_value/type={$field['type']}", $value, $post_id, $field);
$value = apply_filters("acf/update_value/name={$field['name']}", $value, $post_id, $field);
$value = apply_filters("acf/update_value/key={$field['key']}", $value, $post_id, $field);
// update value
$return = acf_update_metadata($post_id, $field['name'], $value);
// update reference
acf_update_metadata($post_id, '_' . $field['name'], $field['key']);
// clear cache
wp_cache_delete("load_value/post_id={$post_id}/name={$field['name']}", 'acf');
// return
return $return;
}
function add_row($selector, $value, $post_id = false)
{
// filter post_id
$post_id = acf_get_valid_post_id($post_id);
// get field
$field = acf_maybe_get_field($selector, $post_id);
// bail early if no field
if (!$field) {
return false;
}
// get row count
$i = (int) acf_get_metadata($post_id, $field['name']);
// if no rows, save this field via update_field() so that the reference field is created
if (!$i) {
// acf_update_value will return boolean, simply convert this to int for 1 | 0 (the number of rows!)
return (int) acf_update_value(array($value), $post_id, $field);
}
// increase $i
$i++;
// update meta
$result = acf_update_metadata($post_id, $field['name'], $i);
// update sub fields
if ($value) {
foreach ($value as $k => $v) {
update_sub_field(array($field['key'], $i, $k), $v, $post_id);
}
}
// return
return $i;
}