limit_options = $limit;
return $this;
}
/**
* Retrieve the field value(s).
*
* @return array
*/
public function get_value() {
if ( $this->value === false ) {
return array();
}
$this->load_options();
if ( ! is_array( $this->value ) ) {
$this->value = maybe_unserialize( $this->value );
if ( ! is_array( $this->value ) ) {
if ( is_null( $this->value ) ) {
return array();
}
return array( $this->value );
}
}
return (array) $this->value;
}
/**
* Returns an array that holds the field data, suitable for JSON representation.
* This data will be available in the Underscore template and the Backbone Model.
*
* @param bool $load Should the value be loaded from the database or use the value from the current instance.
* @return array
*/
public function to_json( $load ) {
$field_data = parent::to_json( $load );
$this->load_options();
$field_data = array_merge( $field_data, array(
'limit_options' => $this->limit_options,
'options' => $this->parse_options( $this->options ),
) );
return $field_data;
}
/**
* The Underscore template of this field.
*/
public function template() {
?>
<# if (_.isEmpty(options)) { #>
<# } else { #>
<# _.each(options, function(option, i) { #>
<#
var selected = jQuery.inArray(String(option.value), value) > -1;
var counter = i + 1;
var exceed = limit_options > 0 && counter > limit_options;
var last = options.length === counter;
#>