未定義の変数 - カスタム投稿タイプのメタ
私は多くの関連する質問を読み、私ができることをすべて試みたので、フラグを立てる前にそれが実際に重複していることを確認してください。
私は約6年間WordPressを使用してきたので、私が動けなくなったと言うとき、私は本当にそれを意味します。
カスタムメタボックスをCPTに追加しようとしていますboat。以下は私のコードと私が得ているエラーです。
エラーメッセージ：
Notice: Undefined variable: boat_make in /path/to/file/wp-content/plugins/syb/admin/class-syb-admin.php on line 150
このエラーメッセージは両方のフィールドで同じです。
これが私のコードです：
/**
* Register all of the hooks related to the admin area functionality
* of the plugin.
*
* @since 1.0.0
* @access private
*/
private function define_admin_hooks() {
...
/**
* Add metabox and register custom fields
*
* @link https://code.tutsplus.com/articles/rock-solid-wordpress-30-themes-using-custom-post-types--net-12093
*/
$this->loader->add_action( 'add_meta_boxes', $plugin_admin, 'rerender_meta_options' );
$this->loader->add_action( 'save_post', $plugin_admin, 'save_meta_options' );
}
...
/**
* Save Custom Fields
*
* @since 1.0.0
*/
public function save_meta_options() {
if ( ! current_user_can( '' ) ) return;
global $post;
update_post_meta($post->ID, "customer_id", $_POST["customer_id"]);
update_post_meta($post->ID, "boat_make", $_POST["boat_make"]);
}
/**
* Create a meta box for our custom fields
*
* @since 1.0.0
*/
public function rerender_meta_options() {
add_meta_box("boat-meta", "Boat Details", array($this, "display_meta_options"), "boat", "normal", "low");
}
/**
* Display meta box and custom fields
*
* @since 1.0.0
*/
public function display_meta_options() {
global $post;
$custom = get_post_custom($post->ID);
var_dump($custom);
if (isset($custom["customer_id"][0])) {
$customer_id = $custom["customer_id"][0];
}
?>
<label><?php _e( 'Boat Colour:', $this->plugin_name ); ?></label><input name="customer_id" value="<?php echo $customer_id; ?>" /><br>
<?php
if (isset($custom["boat_make"][0])) {
$boat_make = $custom["boat_make"][0];
}
?>
<label><?php _e( 'Boat Make:', $this->plugin_name ); ?></label><textarea name="boat_make"><?php echo $boat_make; ?></textarea>
<?php
}
ローダーメソッド：
class Syb_Loader {
/**
* The array of actions registered with WordPress.
*
* @since 1.0.0
* @access protected
* @var array $actions The actions registered with WordPress to fire when the plugin loads.
*/
protected $actions;
/**
* The array of filters registered with WordPress.
*
* @since 1.0.0
* @access protected
* @var array $filters The filters registered with WordPress to fire when the plugin loads.
*/
protected $filters;
/**
* Initialize the collections used to maintain the actions and filters.
*
* @since 1.0.0
*/
public function __construct() {
$this->actions = array();
$this->filters = array();
}
/**
* Add a new action to the collection to be registered with WordPress.
*
* @since 1.0.0
* @param string $hook The name of the WordPress action that is being registered.
* @param object $component A reference to the instance of the object on which the action is defined.
* @param string $callback The name of the function definition on the $component.
* @param int $priority Optional. The priority at which the function should be fired. Default is 10.
* @param int $accepted_args Optional. The number of arguments that should be passed to the $callback. Default is 1.
*/
public function add_action( $hook, $component, $callback, $priority = 10, $accepted_args = 1 ) {
$this->actions = $this->add( $this->actions, $hook, $component, $callback, $priority, $accepted_args );
}
/**
* Add a new filter to the collection to be registered with WordPress.
*
* @since 1.0.0
* @param string $hook The name of the WordPress filter that is being registered.
* @param object $component A reference to the instance of the object on which the filter is defined.
* @param string $callback The name of the function definition on the $component.
* @param int $priority Optional. The priority at which the function should be fired. Default is 10.
* @param int $accepted_args Optional. The number of arguments that should be passed to the $callback. Default is 1
*/
public function add_filter( $hook, $component, $callback, $priority = 10, $accepted_args = 1 ) {
$this->filters = $this->add( $this->filters, $hook, $component, $callback, $priority, $accepted_args );
}
/**
* A utility function that is used to register the actions and hooks into a single
* collection.
*
* @since 1.0.0
* @access private
* @param array $hooks The collection of hooks that is being registered (that is, actions or filters).
* @param string $hook The name of the WordPress filter that is being registered.
* @param object $component A reference to the instance of the object on which the filter is defined.
* @param string $callback The name of the function definition on the $component.
* @param int $priority The priority at which the function should be fired.
* @param int $accepted_args The number of arguments that should be passed to the $callback.
* @return array The collection of actions and filters registered with WordPress.
*/
private function add( $hooks, $hook, $component, $callback, $priority, $accepted_args ) {
$hooks[] = array(
'hook' => $hook,
'component' => $component,
'callback' => $callback,
'priority' => $priority,
'accepted_args' => $accepted_args
);
return $hooks;
}
/**
* Register the filters and actions with WordPress.
*
* @since 1.0.0
*/
public function run() {
foreach ( $this->filters as $hook ) {
add_filter( $hook['hook'], array( $hook['component'], $hook['callback'] ), $hook['priority'], $hook['accepted_args'] );
}
foreach ( $this->actions as $hook ) {
add_action( $hook['hook'], array( $hook['component'], $hook['callback'] ), $hook['priority'], $hook['accepted_args'] );
}
}
}
メタデータを保存する前に、if ( ! current_user_can( '' ) ) returnがあります。
これまで空の文字列に対してcurrent_user_canを実行したことがないので、結果がどうなるかはわかりませんが、これがfalseを返す可能性が非常に高いので、この時点で戻ります。
また、データベースに保存する前に必ず$ _POSTデータをサニタイズしてください。
$ custom ["boat_make"] [0]でも、$ custom ["boat_make"]も設定されていません。
そのため、あなたは尋ねることができません：if (isset($custom["boat_make"][0]))
データベースをチェックして、 "boat_make"の投稿メタが存在するかどうかを確認してください。
あなたがvar_dump($custom);をするとき、それはどのように見えますか？