我正在为wordpress中的每个类别创建新页面。帖子编辑器有一个自定义字段,允许选择扇区类型,这将应用于更新后的帖子。自定义字段key
为:sector
,对于自定义字段元value
选项,我们可以使用SectorA
,SectorB
和SectorC
。我使用的是名为projects
的自定义帖子类型。
我按照此链接http://weblogtoolscollection.com/archives/2008/04/13/how-to-only-retrieve-posts-with-custom-fields/
的建议如何更改下面代码中的查询行,以便按扇区名称过滤循环,让我们使用SectorA
。然后,我会重复使用每个模板页面上的代码,将值更改为其他页面上的SectorB
和SectorC
。
我认为这需要以某种方式改变:
$customPosts->query('showposts=5§or=sectorA&post_type=projects' );
目前,它已成功回传sector value
和description value
,但正在显示所有帖子。所以我尝试使用sector=sectorA
将其限制为sectorA似乎不起作用?
此代码位于functions.php中:
function get_custom_field_posts_join($join) {
global $wpdb, $customFields;
return $join . " JOIN $wpdb->postmeta postmeta ON (postmeta.post_id = $wpdb->posts.ID and postmeta.meta_key in ($customFields)) ";
}
function get_custom_field_posts_group($group) {
global $wpdb;
$group .= " $wpdb->posts.ID ";
return $group;
}
此代码位于模板页面上:
<?php /* Begin Custom Field Posts */ ?>
<h2>Custom Posts</h2>
<ul>
<?php
global $customFields;
$customFields = "'sector', 'description'";
$customPosts = new WP_Query();
add_filter('posts_join', 'get_custom_field_posts_join');
add_filter('posts_groupby', 'get_custom_field_posts_group');
$customPosts->query('showposts=5§or=sectorA&post_type=projects' );//Uses same parameters as query_posts
remove_filter('posts_join', 'get_custom_field_posts_join');
remove_filter('posts_groupby', 'get_custom_field_posts_group');
while ($customPosts->have_posts()) : $customPosts->the_post();
$sector = get_post_custom_values("sector");
$description= get_post_custom_values("description");?>
<li><?php echo $sector[0]; ?></li>
<li><?php echo $description[0]; ?></li><br />
<?php endwhile; ?>
</ul>
<?php /* End Custom Field Posts */ ?>
感谢您的帮助
答案 0 :(得分:0)
可能是你想要的
function get_custom_field_posts_join($join) {
global $wpdb, $customSector;
return $join . " JOIN $wpdb->postmeta postmeta ON (postmeta.post_id = $wpdb->posts.ID and postmeta.meta_key = 'sector' and postmeta.value = '$customSector') ";
}
和修改页面
$customSector='sectorA';//<--- insert this
add_filter('posts_join', 'get_custom_field_posts_join');
答案 1 :(得分:0)
尝试使用此代码。
<?php
$sector = get_post_meta($post->ID, "sector", false);
if ($sector[0]=="") { ?>
<!-- If there are no custom fields, show nothing -->
<?php } else { ?>
<div class="sector">
<h3>Title</h3>
<?php foreach($sector as $sector) {
echo '<blockquote><p>'.$sector.'</p></blockquote>';
} ?>
</div>
<?php } ?>