SHOW:
|
|
- or go back to the newest paste.
| 1 | <?php | |
| 2 | /* | |
| 3 | * Tests if any of a post's assigned categories are descendants of target categories | |
| 4 | * | |
| 5 | * @param int|array $cats The target categories. Integer ID or array of integer IDs | |
| 6 | * @param int|object $_post The post. Omit to test the current post in the Loop or main query | |
| 7 | * @return bool True if at least 1 of the post's categories is a descendant of any of the target categories | |
| 8 | * @see get_term_by() You can get a category by name or slug, then pass ID to this function | |
| 9 | * @uses get_term_children() Passes $cats | |
| 10 | * @uses in_category() Passes $_post (can be empty) | |
| 11 | * @version 2.7 | |
| 12 | * @link http://codex.wordpress.org/Function_Reference/in_category#Testing_if_a_post_is_in_a_descendant_category | |
| 13 | */ | |
| 14 | ||
| 15 | if ( ! function_exists( 'post_is_in_descendant_category' ) ) {
| |
| 16 | function post_is_in_descendant_category( $cats, $_post = null ) {
| |
| 17 | foreach ( (array) $cats as $cat ) {
| |
| 18 | // get_term_children() accepts integer ID only | |
| 19 | $descendants = get_term_children( (int) $cat, 'category' ); | |
| 20 | if ( $descendants && in_category( $descendants, $_post ) ) | |
| 21 | return true; | |
| 22 | } | |
| 23 | return false; | |
| 24 | } | |
| 25 | } | |
| 26 | ||
| 27 | - | function graphene_custom_header_image( $image ){
|
| 27 | + | function graphene_custom_header_image( $header_img ){
|
| 28 | - | if ( in_category(52) || post_is_in_descendant_category(52) ){
|
| 28 | + | if ( in_category(4) || post_is_in_descendant_category(4) ){
|
| 29 | /* The script to rotate through possible images here. */ | |
| 30 | ||
| 31 | // Get the current category | |
| 32 | if ( $cat = get_query_var( 'cat' ) ){
| |
| 33 | $cat = get_the_terms( $cat, 'category' ); | |
| 34 | $cat = $cat[1]->slug; | |
| 35 | } else {
| |
| 36 | global $post; | |
| 37 | $cat = get_the_category( $post->ID ); | |
| 38 | $cat = $cat[0]->slug; | |
| 39 | } | |
| 40 | ||
| 41 | // The directory where the images reside | |
| 42 | $dir = get_stylesheet_directory() . '/images/custom-headers/' . $cat; | |
| 43 | ||
| 44 | if ( is_dir( $dir ) ){
| |
| 45 | // Get all images from the $dir above | |
| 46 | $images = glob( $dir . "/*.jpg" ); | |
| 47 | ||
| 48 | if ( $images ){
| |
| 49 | // Pick a random image | |
| 50 | $key = array_rand( $images ); | |
| 51 | ||
| 52 | // Make sure the resulting image is assigned to the $image variable | |
| 53 | - | $image = get_stylesheet_directory_uri() . "/images/custom-headers/$cat/" . basename( $images[$key] ); |
| 53 | + | $header_img = get_stylesheet_directory_uri() . "/images/custom-headers/$cat/" . basename( $images[$key] ); |
| 54 | } | |
| 55 | } | |
| 56 | } | |
| 57 | - | return $image; |
| 57 | + | return $header_img; |
| 58 | } | |
| 59 | add_filter( 'graphene_header_image', 'graphene_custom_header_image' ); | |
| 60 | ||
| 61 | ?> | |
| 62 |
