我有一个函数总是返回wordpress中每个帖子的高级自定义字段，但这似乎不适用于按关系链接的帖子对象。知道如何将高级自定义字段自动附加到这些字段吗？
将自定义字段附加到每个帖子对象的函数：
function my_always_get_post_custom( $posts ) {
for ( $i = 0; $i < count($posts); $i++ ) {
$custom_fields = get_fields( $posts[$i]->ID );
$posts[$i]->custom = $custom_fields;
}
return $posts;
}
add_filter( 'the_posts', 'my_always_get_post_custom' );
对象显示自定义字段附加到帖子但不附加链接在其中的对象：
WP_Post Object
(
[ID] => 90
[post_author] => 1
[post_date] => 2014-12-12 12:47:58
[post_date_gmt] => 2014-12-12 12:47:58
[post_content] =>
[post_title] => test case
[post_excerpt] =>
[post_status] => publish
[comment_status] => closed
[ping_status] => closed
[post_password] =>
[post_name] => test-case
[to_ping] =>
[pinged] =>
[post_modified] => 2014-12-12 13:48:18
[post_modified_gmt] => 2014-12-12 13:48:18
[post_content_filtered] =>
[post_parent] => 0
[guid] => http://test.dev/?post_type=gk_case&p=90
[menu_order] => 0
[post_type] => gk_case
[post_mime_type] =>
[comment_count] => 0
[filter] => raw
[custom] => Array
(
[top_image] =>
[customer] => Test customer
[services] =>
[account_manager] => Array
(
[0] => WP_Post Object
(
[ID] => 30
[post_author] => 1
[post_date] => 2014-12-12 12:41:36
[post_date_gmt] => 2014-12-12 12:41:36
[post_content] =>
[post_title] => Jon jonsen
[post_excerpt] =>
[post_status] => publish
[comment_status] => closed
[ping_status] => closed
[post_password] =>
[post_name] => jon-jonsen
[to_ping] =>
[pinged] =>
[post_modified] => 2014-12-12 12:41:36
[post_modified_gmt] => 2014-12-12 12:41:36
[post_content_filtered] =>
[post_parent] => 0
[guid] => http://test.dev/?post_type=gk_cv&p=30
[menu_order] => 0
[post_type] => gk_cv
[post_mime_type] =>
[comment_count] => 0
[filter] => raw
)
)
[content] =>
Content test
[modules] =>
[excerpt] => Lorem ipsum dolor sit amet, consectetur adipisicing elit. Ad dolor dolorem et expedita fuga ipsa itaque maiores optio quasi, quia quisquam, rem repellendus. Ea iusto labore sequi vel! Deleniti, dolores.
)
)
答案 0 :(得分：0)
您可以使用以下代码获取关系的自定义字段。
扩展函数将循环遍历所有自定义字段，并检查是否存在关系字段。如果是，它将循环遍历所有post对象并检索这些对象的自定义字段。
function my_always_get_post_custom( $posts ) {
// Loop posts
for ( $i = 0; $i < count($posts); $i++ ) {
$custom_fields = get_fields( $posts[$i]->ID );
if( $custom_fields ) {
$posts[$i]->custom = $custom_fields;
// Loop custom fields
foreach( $custom_fields as $field_name => $value ) {
// get_field_object( $field_name, $post_id, $options )
// - $value has already been loaded for us, no point to load it again in the get_field_object function
$field = get_field_object($field_name, false, array('load_value' => false));
// Check if this is a relationship field
if ( $field['type'] == 'relationship' ) {
// Loop post objects
for ( $i = 0; $i < count($value); $i++ ) {
// Get custom fields
$custom_fields = get_fields( $value[$i]->ID );
$value[$i]->custom = $custom_fields;
}
}
}
}
}
return $posts;
}
add_filter( 'the_posts', 'my_always_get_post_custom' );
这将给出以下输出（示例）：
WP_Post Object
(
[ID] => 90
[post_author] => 1
[post_date] => 2014-12-12 12:47:58
[post_date_gmt] => 2014-12-12 12:47:58
[post_content] =>
[post_title] => test case
[post_excerpt] =>
[post_status] => publish
[comment_status] => closed
[ping_status] => closed
[post_password] =>
[post_name] => test-case
[to_ping] =>
[pinged] =>
[post_modified] => 2014-12-12 13:48:18
[post_modified_gmt] => 2014-12-12 13:48:18
[post_content_filtered] =>
[post_parent] => 0
[guid] => http://test.dev/?post_type=gk_case&p=90
[menu_order] => 0
[post_type] => gk_case
[post_mime_type] =>
[comment_count] => 0
[filter] => raw
[custom] => Array
(
[top_image] =>
[customer] => Test customer
[services] =>
[account_manager] => Array
(
[0] => WP_Post Object
(
[ID] => 30
[post_author] => 1
[post_date] => 2014-12-12 12:41:36
[post_date_gmt] => 2014-12-12 12:41:36
[post_content] =>
[post_title] => Jon jonsen
[post_excerpt] =>
[post_status] => publish
[comment_status] => closed
[ping_status] => closed
[post_password] =>
[post_name] => jon-jonsen
[to_ping] =>
[pinged] =>
[post_modified] => 2014-12-12 12:41:36
[post_modified_gmt] => 2014-12-12 12:41:36
[post_content_filtered] =>
[post_parent] => 0
[guid] => http://test.dev/?post_type=gk_cv&p=30
[menu_order] => 0
[post_type] => gk_cv
[post_mime_type] =>
[comment_count] => 0
[filter] => raw
[custom] => Array
(
[custom_field_1] => value
[custom_field_2] => value
)
)
)
[content] =>
Content test
[modules] =>
[excerpt] => Lorem ipsum dolor sit amet, consectetur adipisicing elit. Ad dolor dolorem et expedita fuga ipsa itaque maiores optio quasi, quia quisquam, rem repellendus. Ea iusto labore sequi vel! Deleniti, dolores.
)
)
请注意，该功能仅比原始功能更深一级。如果需要，您可以扩展功能。