ID, $field['id'], true );
// Get data to display in field
if ( isset( $option ) ) {
$data = $option;
}
} else {
// Get saved option
$option_name .= $field['id'];
$option = get_option( $option_name );
// Get data to display in field
if ( isset( $option ) ) {
$data = $option;
}
}
// Show default data if no option saved and default is supplied
if ( $data === false && isset( $field['default'] ) ) {
$data = $field['default'];
} elseif ( $data === false ) {
$data = '';
}
$html = '';
switch( $field['type'] ) {
case 'text':
case 'url':
case 'email':
$html .= '' . "\n";
break;
case 'password':
case 'number':
case 'hidden':
$min = '';
if ( isset( $field['min'] ) ) {
$min = ' min="' . esc_attr( $field['min'] ) . '"';
}
$max = '';
if ( isset( $field['max'] ) ) {
$max = ' max="' . esc_attr( $field['max'] ) . '"';
}
$html .= '' . "\n";
break;
case 'text_secret':
$html .= '' . "\n";
break;
case 'textarea':
$html .= '
'. "\n";
break;
case 'checkbox':
$checked = '';
if ( $data && 'on' == $data ) {
$checked = 'checked="checked"';
}
$html .= '' . "\n";
break;
case 'checkbox_multi':
foreach ( $field['options'] as $k => $v ) {
$checked = false;
if ( in_array( $k, $data ) ) {
$checked = true;
}
$html .= ' ';
}
break;
case 'radio':
foreach ( $field['options'] as $k => $v ) {
$checked = false;
if ( $k == $data ) {
$checked = true;
}
$html .= ' ';
}
break;
case 'select':
$html .= ' ';
break;
case 'select_multi':
$html .= ' ';
break;
case 'image':
$image_thumb = '';
if ( $data ) {
$image_thumb = wp_get_attachment_thumb_url( $data );
}
$html .= '
' . "\n";
$html .= '' . "\n";
$html .= '' . "\n";
$html .= '
' . "\n";
break;
case 'color':
?>
' . $field['description'] . '';
break;
default:
if ( ! $post ) {
$html .= '' . "\n";
}
break;
}
if ( ! $echo ) {
return $html;
}
echo $html;
}
/**
* Validate form field
* @param string $data Submitted value
* @param string $type Type of field to validate
* @return string Validated value
*/
public function validate_field ( $data = '', $type = 'text' ) {
switch( $type ) {
case 'text': $data = esc_attr( $data ); break;
case 'url': $data = esc_url( $data ); break;
case 'email': $data = is_email( $data ); break;
}
return $data;
}
/**
* Add meta box to the dashboard
* @param string $id Unique ID for metabox
* @param string $title Display title of metabox
* @param array $post_types Post types to which this metabox applies
* @param string $context Context in which to display this metabox ('advanced' or 'side')
* @param string $priority Priority of this metabox ('default', 'low' or 'high')
* @param array $callback_args Any axtra arguments that will be passed to the display function for this metabox
* @return void
*/
public function add_meta_box ( $id = '', $title = '', $post_types = array(), $context = 'advanced', $priority = 'default', $callback_args = null ) {
// Get post type(s)
if ( ! is_array( $post_types ) ) {
$post_types = array( $post_types );
}
// Generate each metabox
foreach ( $post_types as $post_type ) {
add_meta_box( $id, $title, array( $this, 'meta_box_content' ), $post_type, $context, $priority, $callback_args );
}
}
/**
* Display metabox content
* @param object $post Post object
* @param array $args Arguments unique to this metabox
* @return void
*/
public function meta_box_content ( $post, $args ) {
$fields = apply_filters( $post->post_type . '_custom_fields', array(), $post->post_type );
if ( ! is_array( $fields ) || 0 == count( $fields ) ) return;
echo '' . "\n";
foreach ( $fields as $field ) {
if ( ! isset( $field['metabox'] ) ) continue;
if ( ! is_array( $field['metabox'] ) ) {
$field['metabox'] = array( $field['metabox'] );
}
if ( in_array( $args['id'], $field['metabox'] ) ) {
$this->display_meta_box_field( $field, $post );
}
}
echo '
' . "\n";
}
/**
* Dispay field in metabox
* @param array $field Field data
* @param object $post Post object
* @return void
*/
public function display_meta_box_field ( $field = array(), $post ) {
if ( ! is_array( $field ) || 0 == count( $field ) ) return;
$field = '' . $this->display_field( $field, $post, false ) . '
' . "\n";
echo $field;
}
/**
* Save metabox fields
* @param integer $post_id Post ID
* @return void
*/
public function save_meta_boxes ( $post_id = 0 ) {
if ( ! $post_id ) return;
$post_type = get_post_type( $post_id );
$fields = apply_filters( $post_type . '_custom_fields', array(), $post_type );
if ( ! is_array( $fields ) || 0 == count( $fields ) ) return;
foreach ( $fields as $field ) {
if ( isset( $_REQUEST[ $field['id'] ] ) ) {
update_post_meta( $post_id, $field['id'], $this->validate_field( $_REQUEST[ $field['id'] ], $field['type'] ) );
} else {
update_post_meta( $post_id, $field['id'], '' );
}
}
}
}