/**
* Update a meta field.
*
* ## OPTIONS
*
* <id>
* : The ID of the object.
*
* <key>
* : The name of the meta field to update.
*
* [<value>]
* : The new value. If ommited, the value is read from STDIN.
*
* [--format=<format>]
* : The serialization format for the value. Default is plaintext.
*
* @alias set
*/
public function update($args, $assoc_args)
{
list($object_id, $meta_key) = $args;
$meta_value = \Terminus::get_value_from_arg_or_stdin($args, 2);
$meta_value = \Terminus::read_value($meta_value, $assoc_args);
$success = \update_metadata($this->meta_type, $object_id, $meta_key, $meta_value);
if ($success) {
\Terminus::success("Updated custom field.");
} else {
\Terminus::error("Failed to update custom field.");
}
}
