我正在尝试在functions.PHP中创建一个函数,用来自多个自定义字段的信息替换自定义帖子标题.在发布帖子之前,我想评估它是否已经创建或者这是一个新帖子;如果是新帖子,我想从多个字段中获取信息,计算此自定义帖子类型中的帖子总数并创建标题;如果这只是编辑已经存在的帖子,我想使用$_POST [‘post_title’]字段内的内容.
function custom_field_value_as_title( $value,$post_id,$field ) {
global $_POST;
// vars
$title = $_POST['post_title'];
$post = get_page_by_title( $title,'OBJECT','mascotas' );
if ( FALSE === get_post_status( $post_id ) ) {
$new_title_ciudad = get_field('ciudad',$post_id);
$new_title_sexo = get_field('sexo',$post_id);
$new_title_especie = get_field('especie',$post_id);
$registered_year = date("y");
$count_mascotas = wp_count_posts('mascotas');
$next_count = $count_mascotas->publish + 1;
$new_count = sprintf("%04d",$next_count);
$new_title = "$new_title_ciudad"."$new_title_sexo"."$new_title_especie"."$registered_year"."-"."$new_count";
// update post
$my_post = array(
'ID' => $post_id,'post_title' => $new_title,'post_name' => $post_id
);
// Update the post into the database
wp_update_post( $my_post );
} else {
// vars
$new_title = $_POST['post_title'];
// update post
$my_post = array(
'ID' => $post_id,'post_name' => $post_id
);
// Update the post into the database
wp_update_post( $my_post );
}
}
add_filter('acf/update_value','custom_field_value_as_title',10,3);
它适用于已创建的帖子,但它没有运行创建自定义帖子标题的功能部分.有什么建议？提前致谢！
我用KSNO建议替换了我的函数：
<?PHP function title_replace_function( $post_id,$post ) { if ( $post->post_date == $post->post_modified ) { global $_POST; $new_title_ciudad = get_field('ciudad',$post_id); $new_title_sexo = get_field('sexo',$post_id); $new_title_especie = get_field('especie',$post_id); $registered_year = date("y"); $count_mascotas = wp_count_posts('mascotas'); $next_count = $count_mascotas->publish + 1; $new_count = sprintf("%04d",$next_count); $new_title = "$new_title_ciudad"."$new_title_sexo"."$new_title_especie"."$registered_year"."-"."$new_count"; // update post $my_post = array( 'ID' => $post_id,'post_name' => $post_id ); // Update the post into the database wp_update_post( $my_post ); } else { // vars $new_title = $_POST['post_title']; // update post // http://codex.wordpress.org/Function_Reference/wp_update_post $my_post = array( 'ID' => $post_id,'post_name' => $post_id ); // Update the post into the database wp_update_post( $my_post ); } } add_action( 'publish_post','title_replace_function',2 ); ?>
当它评估帖子是否不是“新”时,它可以正常工作.但它没有获取自定义字段值来为新帖子创建新标题.标题字段为空.我甚至尝试将一个自定义字段的值添加到’$new_title’变量中,什么都没有
if ( get_post_status( $post_id ) === FALSE ) {
wp_update_post( $my_post );
}
不可能发生.如果返回false,则表示post不存在.您无法真正更新不存在的帖子. Check source code of the function.
我认为,很少有方法可以完成任务,但我会建议其中一个.
function title_replace_function( $post_id,$post ) {
if ( $post->post_date == $post->post_modified ) {
// code for new post
} else {
// code for edited post
}
}
add_action( 'publish_post',2 );
编辑
好吧,并不像我想的那么容易.这里经过测试,从无限循环(注意循环Example 1和Example 2)中获得一段代码,以满足您的需求：
function title_replace_function( $post_id,$post ) {
if ( ! wp_is_post_revision( $post_id ) ) {
remove_action('save_post','title_replace_function');
if ( $post->post_date == $post->post_modified ) {
global $_POST;
$new_title_ciudad = get_field('ciudad',$post_id);
$new_title_sexo = get_field('sexo',$post_id);
$new_title_especie = get_field('especie',$post_id);
$registered_year = date("y");
$count_mascotas = wp_count_posts('mascotas');
$next_count = $count_mascotas->publish + 1;
$new_count = sprintf("%04d",$next_count);
$new_title = "$new_title_ciudad"."$new_title_sexo"."$new_title_especie"."$registered_year"."-"."$new_count";
$my_post = array(
'ID' => $post_id,'post_name' => $post_id
);
wp_update_post( $my_post );
} else {
$new_title = 'new_title';
$my_post = array(
'ID' => $post_id,'post_name' => $post_id
);
wp_update_post( $my_post );
}
add_action('save_post','my_function');
}
}
add_action( 'save_post',3 );
