[英]Getting the name of the parent category in wordpress
我有屬於父類別(國家)的子類別(城市)。 我得到以下類別(城市國家)的列表:
$categor = $wpdb->get_results("select * from $wpdb->terms c,$wpdb->term_taxonomy tt where tt.term_id=c.term_id and tt.taxonomy='hotelcategory' and c.name != 'Uncategorized' and c.name != 'Blog' $substr order by c.name");
for($i=0;$i<count($categor);$i++)
{
echo '"'.$categor[$i]->name.' - '.$categor[$i]->parent.'",';
}
我在jquery自動完成中使用檢索到的數據,我可以獲取父類別ID,但不能獲取名稱。
問題是,例如,有許多城市名為“巴黎”,因此當我輸入巴黎時,我會得到8-9個同名城市。(圖1)我想做的是在其父類別名稱旁邊類別。(圖片2) http://s7.postimage.org/k85dhd4sr/catn.jpg
您僅具有父項的ID,因此,如果您想獲取該術語的實際名稱,則必須獲取它。 一種方法是簡單地再次parent
ID連接條件表:
$categor = $wpdb->get_results( "select c.*,tt.*,pc.name as parent_name
from $wpdb->terms c,$wpdb->term_taxonomy tt,$wpdb->terms pc
where
tt.term_id=c.term_id and tt.parent=pc.term_id
and tt.taxonomy='hotelcategory' and c.name != 'Uncategorized'
and c.name != 'Blog' $substr order by c.name");
// I have optimized the loop a bit. If you really need the index you can leave
// it as it is. If you don't need the index I suggest you change that to a
// foreach loop
for($i=0,$n=count($categor);$i<$n;$i++)
{
echo '"'.$categor[$i]->name.' - '.$categor[$i]->parent_name.'",<br />';
}
沒有任何SQL的替代解決方案可能如下所示:
$excludes = array();
// build the "exclude" array. This step is necessary because
// get_terms expects the ID's of the terms to be excluded
foreach(array('Uncategorized', 'Blog') as $termName) {
$term = get_term_by('name', $termName, 'hotelcategory');
if($term) {
$excludes[] = $term->term_id;
}
}
$args = array(
'hide_empty' => false,
'exclude' => $excludes,
'name__like' => 'Paris', // replace this with your search term here
);
$categor = get_terms('hotelcategory', $args);
foreach($categor as $cat)
{
// look up the parent
$parent = get_term_by('id', $cat->parent, $cat->taxonomy);
echo '"'.$cat->name.' - '.($parent ? $parent->name : '-').'",<br />';
}
誠然,此解決方案比較冗長,但是您不必擔心SQL或數據庫布局。
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