This little scripts help ordering WordPress categories by meta values – a thing which is not integrated into WordPress yet and which costs some time to integrate.
1. Create a meta value (or meta values) for categories to order by
To order categories by a meta value the first thing which we have to do is to create a custom category meta value to order these (this first script is adapted from bainternet.com, where it is demonstrated in more detail).
add_action ( 'add_category_form', 'extra_category_fields');
add_action ( 'edit_category_form_fields', 'extra_category_fields');
//add extra fields to category edit form callback function
function extra_category_fields( $tag ) { //check for existing featured ID
$t_id = $tag->term_id;
$cat_meta = get_option("category_$t_id");
?>
<tr class="form-field">
<th scope="row" valign="top">
<label for="cat_order_val"><?php _e('Category order value'); ?></label></th>
<td>
<input type="text" name="cat_meta[cat_order_val]" id="cat_order_val" size="3" style="width:20%;" value="<?php echo $cat_meta['cat_order_val'] ? $cat_meta['cat_order_val'] : ''; ?>"><br />
<span class="description"><?php _e('Enter a numeric value.'); ?></span>
</td>
</tr>
<?php
}
// save extra category extra fields hook
add_action ( 'edited_category', 'save_extra_category_fileds');
// save extra category extra fields callback function
function save_extra_category_fileds( $term_id ) {
if ( isset( $_POST['cat_meta'] ) ) {
$t_id = $term_id;
$cat_meta = get_option( "category_$t_id");
$cat_keys = array_keys($_POST['cat_meta']);
foreach ($cat_keys as $key){
if (isset($_POST['cat_meta'][$key])){
$cat_meta[$key] = $_POST['cat_meta'][$key];
}
}
//save the option array
update_option( "category_$t_id", $cat_meta );
}
}
2. Order the categories by the created meta value and display these
$categories = get_categories();
$sortar = array();
foreach($categories as $ct) {
$term_id = $ct->term_id;
$cat_meta = get_option( "category_$term_id");
array_push($sortar,array(intval($cat_meta['cat_order_val']),$ct));
}
uasort($sortar,create_function('$a,$b','return ($a[0]<=$b[0]) ? -1 : 1;'));
$ordered_categories = array();
foreach($sortar as $sor) {
array_push($ordered_categories,$sor[1]);
}
foreach($ordered_categories as $oc) {
// do whatever you want with your category objects
}
Have fun and be free to use these scripts. Improvement ideas are welcome.
No comments yet
Kommentare abonnieren (RSS) or URL Trackback
Leave a comment: