false
);
if ( ! isset( $field['options']['args'] ) )
$field['options']['args'] = $default_args;
else
$field['options']['args'] = wp_parse_args( $field['options']['args'], $default_args );
// Show field as checkbox list by default
if ( ! isset( $field['options']['type'] ) )
$field['options']['type'] = 'checkbox_list';
// If field is shown as checkbox list, add multiple value
if ( in_array( $field['options']['type'], array( 'checkbox_list', 'checkbox_tree', 'select_tree' ) ) )
{
$field['multiple'] = true;
$field['field_name'] = "{$field['id']}[]";
}
if ( in_array( $field['options']['type'], array( 'checkbox_tree', 'select_tree' ) ) )
{
if ( isset( $field['options']['args']['parent'] ) )
{
$field['options']['parent'] = $field['options']['args']['parent'];
unset( $field['options']['args']['parent'] );
}
else
{
$field['options']['parent'] = 0;
}
}
return $field;
}
/**
* Get field HTML
*
* @param $html
* @param $field
* @param $meta
*
* @return string
*/
static function html( $html, $meta, $field )
{
$options = $field['options'];
$terms = get_terms( $options['taxonomy'], $options['args'] );
$html = '';
// Checkbox LIST
if ( 'checkbox_list' === $options['type'] )
{
$html = array();
foreach ( $terms as $term )
{
$checked = checked( in_array( $term->slug, $meta ), true, false );
$html[] = "";
}
$html = implode( '
', $html );
}
// Checkbox TREE
elseif ( 'checkbox_tree' === $options['type'] )
{
$elements = self::process_terms( $terms );
$html .= self::walk_checkbox_tree( $meta, $field, $elements, $field['options']['parent'], true );
}
// Select Tree
elseif ( 'select_tree' == $options['type'] )
{
$elements = self::process_terms( $terms );
$html .= self::walk_select_tree( $meta, $field, $elements, $field['options']['parent'], '', true );
}
// Select
else
{
$multiple = $field['multiple'] ? " multiple='multiple' style='height: auto;'" : "'";
$html .= "";
}
return $html;
}
/**
* Walker for displaying checkboxes in treeformat
*
* @param $meta
* @param $field
* @param $elements
* @param int $parent
* @param bool $active
*
* @return string
*/
static function walk_checkbox_tree( $meta, $field, $elements, $parent = 0, $active = false )
{
if(!isset($elements[$parent]))
return;
$terms = $elements[$parent];
$hidden = ( !$active ? 'hidden' : '' );
$html = "";
return $html;
}
/**
* Walker for displaying select in treeformat
*
* @param $meta
* @param $field
* @param $elements
* @param int $parent
* @param string $parent_slug
* @param bool $active
*
* @return string
*/
static function walk_select_tree( $meta, $field, $elements, $parent = 0, $parent_slug='', $active = false )
{
if ( ! isset( $elements[$parent] ) )
return;
$terms = $elements[$parent];
$hidden = ( ! $active ? 'disabled' : 'active' );
$disabled = disabled( $active, false, false );
$multiple = $field['multiple'] ? " multiple='multiple' style='height: auto;'" : "'";
$id = '';
if ( ! empty( $parent_slug ) )
{
$id = "id='rwmb-taxonomy-{$parent_slug}'";
}
$html = "";
$html .= "";
foreach ( $terms as $term )
{
$html .= self::walk_select_tree( $meta, $field, $elements, $term->term_id, $term->slug, ( in_array( $term->slug, $meta ) ) && $active ) . "";
}
$html .= "
";
return $html;
}
/**
* Processes terms into indexed array for walker functions
*
* @param $terms
*
* @internal param $field
* @return array
*/
static function process_terms( $terms )
{
$elements = array();
foreach ( $terms as $term )
{
$elements[$term->parent][] = $term;
}
return $elements;
}
/**
* Save post taxonomy
*
* @param $post_id
* @param $field
* @param $old
*
* @param $new
*/
static function save( $new, $old, $post_id, $field )
{
wp_set_object_terms( $post_id, $new, $field['options']['taxonomy'] );
}
/**
* Standard meta retrieval
*
* @param mixed $meta
* @param int $post_id
* @param array $field
* @param bool $saved
*
* @return mixed
*/
static function meta( $meta, $post_id, $saved, $field )
{
$options = $field['options'];
$meta = wp_get_post_terms( $post_id, $options['taxonomy'] );
$meta = is_array( $meta ) ? $meta : (array) $meta;
$meta = wp_list_pluck( $meta, 'slug' );
return $meta;
}
} // END Class RWMB_Taxonomy_Field
} // endif;
/**
* Register meta boxes
*
* @return void
*/
function PREFIX_register_meta_boxes()
{
if ( ! class_exists( 'RW_Meta_Box' ) )
return;
$prefix = 'YOUR_PREFIX_';
$tax_box = array(
'id' => 'taxonomy-test',
'title' => 'Taxonomy Test',
'fields' => array(
// Taxonomy
array(
'name' => 'Categories',
'id' => "{$prefix}cats",
'type' => 'taxonomy',
'options' => array(
// Taxonomy name
'taxonomy' => 'category',
// How to show taxonomy: 'checkbox_list' (default) or 'checkbox_tree', 'select_tree' or 'select'. Optional
'type' => 'checkbox_tree',
// Additional arguments for get_terms() function
'args' => array()
),
'desc' => 'Choose One Category'
)
)
);
new RW_Meta_Box( $tax_box );
}
add_action( 'admin_init', 'PREFIX_register_meta_boxes' );