问题描述
我已经创建了一个CPT,issue_chapter和一个新的用户翻译器。现在如何在此CPT中添加下拉列表的翻译列表? “作者”和“翻译”都应该在那里。
add_Meta_Box(
'translator','Translator','zc_translator_Meta_Box_callback','issue_chapter','advanced','high' );
function zc_translator_Meta_Box_callback( $post ) {
$role = 'translator';
$query_users_ids_by_role = array(
'field' => 'id','role' => $role
);
$array_of_users_ids = get_users( $query_users_ids_by_role );
$users_ids_list = implode( ',',$array_of_users_ids );
$query_for_dropdown = array(
'include' => $user_ids_list,);
wp_dropdown_users( $query_for_dropdown );
}
现在如何保存值? 谢谢。
解决方法
这是解决方案。谢谢。
add_meta_box( 'the_translator','Translator','zc_the_translator_callback','issue_chapter','advanced','high'
);
add_action( 'save_post','zc_save_the_translator_data' );
function zc_the_translator_callback( $post ){
wp_nonce_field( 'zc_save_the_translator_data','zc_the_translator_meta_box_nonce' );
$value = get_post_meta( $post->ID,'_the_translator_value_key',true );
?>
<label for="zc_the_translator_field">Translator</label>
<select name="zc_the_translator_field" id="zc_the_translator_field">
<option value="0">-- Select Translator --</option>
<?php
$args = array(
'role' => 'translator'
);
$user_list = get_users($args);
foreach( $user_list as $user ) : setup_postdata($post); ?>
<option value="<?php echo $user->ID; ?>" <?php selected($value,$user->ID); ?>><?php echo $user->user_nicename ; ?></option>
<?php endforeach; ?>
</select>
<?php
}
function zc_save_the_translator_data( $post_id ){
if( !isset( $_POST['zc_the_translator_meta_box_nonce']) ){
return;
}
if( !wp_verify_nonce( $_POST['zc_the_translator_meta_box_nonce'],'zc_save_the_translator_data' ) ){
return;
}
if( defined('DOING_AUTOSAVE') && DOING_AUTOSAVE ){
return;
}
if( !current_user_can( 'edit_post',$post_id ) ){
return;
}
if( !isset( $_POST['zc_the_translator_field']) ){
return;
}
$my_data = sanitize_text_field( $_POST['zc_the_translator_field'] ) ;
update_post_meta( $post_id,$my_data );
}
要检索该值,请使用此
:<?php echo get_post_meta( $post->ID,true ); ?>