woocommerce/admin/admin-taxonomies.php

178 lines
4.6 KiB
PHP
Raw Normal View History

2011-09-16 08:10:12 +00:00
<?php
/**
* Functions used for taxonomies in admin
*
* These functions control admin interface bits like category ordering.
*
* @author WooThemes
* @category Admin
* @package WooCommerce
*/
/**
* Categories ordering
*/
/**
* Add product_cat ordering to get_terms
*
* It enables the support a 'menu_order' parameter to get_terms for the product_cat taxonomy.
* By default it is 'ASC'. It accepts 'DESC' too
*
* To disable it, set it ot false (or 0)
*
*/
add_filter( 'terms_clauses', 'woocommerce_terms_clauses', 10, 3);
function woocommerce_terms_clauses($clauses, $taxonomies, $args ) {
global $wpdb;
// wordpress should give us the taxonomies asked when calling the get_terms function
if( !in_array('product_cat', (array)$taxonomies) ) return $clauses;
// query order
if( isset($args['menu_order']) && !$args['menu_order']) return $clauses; // menu_order is false so we do not add order clause
// query fields
if( strpos('COUNT(*)', $clauses['fields']) === false ) $clauses['fields'] .= ', tm.* ';
//query join
$clauses['join'] .= " LEFT JOIN {$wpdb->woocommerce_termmeta} AS tm ON (t.term_id = tm.woocommerce_term_id AND tm.meta_key = 'order') ";
// default to ASC
if( ! isset($args['menu_order']) || ! in_array( strtoupper($args['menu_order']), array('ASC', 'DESC')) ) $args['menu_order'] = 'ASC';
$order = "ORDER BY CAST(tm.meta_value AS SIGNED) " . $args['menu_order'];
if ( $clauses['orderby'] ):
$clauses['orderby'] = str_replace ('ORDER BY', $order . ',', $clauses['orderby'] );
else:
$clauses['orderby'] = $order;
endif;
return $clauses;
}
/**
* Reorder on category insertion
*
* @param int $term_id
*/
add_action("create_product_cat", 'woocommerce_create_product_cat');
function woocommerce_create_product_cat ($term_id) {
$next_id = null;
$term = get_term($term_id, 'product_cat');
// gets the sibling terms
$siblings = get_terms('product_cat', "parent={$term->parent}&menu_order=ASC&hide_empty=0");
foreach ($siblings as $sibling) {
if( $sibling->term_id == $term_id ) continue;
$next_id = $sibling->term_id; // first sibling term of the hierachy level
break;
}
// reorder
woocommerce_order_categories ( $term, $next_id );
}
/**
* Delete terms metas on deletion
*
* @param int $term_id
*/
add_action("delete_product_cat", 'woocommerce_delete_product_cat');
function woocommerce_delete_product_cat($term_id) {
$term_id = (int) $term_id;
if(!$term_id) return;
global $wpdb;
$wpdb->query("DELETE FROM {$wpdb->woocommerce_termmeta} WHERE `woocommerce_term_id` = " . $term_id);
}
/**
* Move a category before the a given element of its hierarchy level
*
* @param object $the_term
* @param int $next_id the id of the next slibling element in save hierachy level
* @param int $index
* @param int $terms
*/
function woocommerce_order_categories ( $the_term, $next_id, $index=0, $terms=null ) {
if( ! $terms ) $terms = get_terms('product_cat', 'menu_order=ASC&hide_empty=0&parent=0');
if( empty( $terms ) ) return $index;
$id = $the_term->term_id;
$term_in_level = false; // flag: is our term to order in this level of terms
foreach ($terms as $term) {
if( $term->term_id == $id ) { // our term to order, we skip
$term_in_level = true;
continue; // our term to order, we skip
}
// the nextid of our term to order, lets move our term here
if(null !== $next_id && $term->term_id == $next_id) {
$index++;
$index = woocommerce_set_category_order($id, $index, true);
}
// set order
$index++;
$index = woocommerce_set_category_order($term->term_id, $index);
// if that term has children we walk through them
$children = get_terms('product_cat', "parent={$term->term_id}&menu_order=ASC&hide_empty=0");
if( !empty($children) ) {
$index = woocommerce_order_categories ( $the_term, $next_id, $index, $children );
}
}
// no nextid meaning our term is in last position
if( $term_in_level && null === $next_id )
$index = woocommerce_set_category_order($id, $index+1, true);
return $index;
}
/**
* Set the sort order of a category
*
* @param int $term_id
* @param int $index
* @param bool $recursive
*/
function woocommerce_set_category_order ($term_id, $index, $recursive=false) {
global $wpdb;
$term_id = (int) $term_id;
$index = (int) $index;
update_metadata('woocommerce_term', $term_id, 'order', $index);
if( ! $recursive ) return $index;
$children = get_terms('product_cat', "parent=$term_id&menu_order=ASC&hide_empty=0");
foreach ( $children as $term ) {
$index ++;
$index = woocommerce_set_category_order ($term->term_id, $index, true);
}
return $index;
}