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| /*a function to check if post_is_in_descendant_category ,which will work with */
/**
* a function to check if post_is_in_descendant_category
* @param $cats the category object to check
* @return true if post_is_in_descendant_category or false if not in
*/
function zxd_post_is_in_descendant_category( $cats, $_post = null ){
foreach ( (array) $cats as $cat ) {
$descendants = get_term_children( (int) $cat, 'category');
if ( $descendants && in_category( $descendants, $_post ) ) return true;
}
return false;
}
/**
* get all top level categories
* @return top level categories objects array
*/
function getTopLevelCats() {
$allCats = get_all_category_ids();
$cats = array();
foreach ($allCats as $id){
$obj = get_category($id);
$name = get_cat_name($id);
if (!$obj -> parent) array_push($cats,$obj);
}
return $cats;
}
/**
* wp ajax collapsing categories class
*/
class ajax_cc_Widget extends WP_Widget{
function ajax_cc_Widget() {
$widget_ops = array('classname' => 'widget_ajax_cc', 'description' => 'WP ajax Collapsing Categories' );
$this->WP_Widget('ajax_cc_widget','ajax_cc_widget',$widget_ops);
}
/**
* implent widget fucntion
*/
function widget($args, $instance) {
extract($args, EXTR_SKIP);
echo $before_widget;
$title = empty($instance['title']) ? ' ' : apply_filters('widget_title', $instance['title']);
if ( !empty( $title ) ) { echo $before_title . $title . $after_title; };
echo '<ul class="zxd_ajax_cc"' ;
echo ' zid="';
the_ID();
echo '">';
if(!$instance['zxdIncludeCats']) {
$zxdCatArrayPool = getTopLevelCats();
}
else {
$zxdCatArrayPool = array();
$zxdCatTempPool = preg_split('/[,]+/',$instance['zxdIncludeCats']);
sort($zxdCatTempPool);
foreach($zxdCatTempPool as $a) {
if(!get_category_by_slug($a)) {
$zxdCatArrayPool = getTopLevelCats();
break;
}
$obj = get_category_by_slug($a);
array_push($zxdCatArrayPool,$obj);
}
}
$zxdPostId = is_single()?get_the_ID():0;
foreach ($zxdCatArrayPool as $zxdCatObj){
$zxdCatid = $zxdCatObj -> term_id;
$zxdCatdesc = $zxdCatObj->description;
$zxdCatCount = $zxdCatObj->count;
echo '<li class="zxd_ajax_cc_li"><span class="zxd_expand">[+]</span>'.'<a ';
if(in_category( $zxdCatid,$zxdPostId)||zxd_post_is_in_descendant_category($zxdCatid,$zxdPostId)) {
echo 'class="zxd_current_cat" ';
}
echo 'href="'.get_category_link($zxdCatid).'" '.'title="'.$zxdCatdesc.'">'.get_cat_name( $zxdCatid ).'</a>'.'('.$zxdCatCount.')'.'</li>';
}
echo '</ul>' ;
echo $after_widget;
}
/**
* implent widget fucntion
*/
function update($new_instance, $old_instance) {
$instance = $old_instance;
$title = strip_tags($new_instance['title']);
$zxdIncludeCats=$new_instance['zxdIncludeCats'];
$instance = compact('title','zxdIncludeCats');
return $instance;
}
/**
* implent widget fucntion
*/
function form($instance) {
$defaults=array(
'title' => __('ajax Categories', 'WP ajax collapsing categories'),
'zxdIncludeCats' => '',
);
$options = wp_parse_args( $instance,$defaults );
extract($options);
?>
<p><label for="<?php echo $this->get_field_id('title'); ?>">Title: <input class="widefat" id="<?php echo $this-/>get_field_id('title'); ?>" name="< ?php echo $this->get_field_name('title'); ?>" type="text" value="< ?php echo esc_attr($title); ?>" /></label></p>
<p>include these categories (category slugs,separated by commas): </p>
<p><input type="text" name="<?php echo $this-/>get_field_name('zxdIncludeCats'); ?>" value="< ?php echo $zxdIncludeCats ?>" id="< ?php echo $this->get_field_id('zxdIncludeCats') ?>" </p>
< ?php
}
}
/**
* register_widget
*/
function zxd_widgets_init() {
register_widget('ajax_cc_Widget');
}
add_action( 'widgets_init', 'zxd_widgets_init' );
if ( !is_admin() ) {
function zxd_init_method() {
wp_register_script( 'wp-ajax-collapsing-categories', get_template_directory_uri().'/wp-ajax-collapsing-categories.js',array('jquery'),'1.0',true);
wp_enqueue_script( 'wp-ajax-collapsing-categories');
wp_localize_script( 'wp-ajax-collapsing-categories', 'ajaxCC', array( 'ajaxurl' => admin_url( 'admin-ajax.php' )) );
}
add_action('init', 'zxd_init_method');
}
add_action( 'wp_ajax_nopriv_zxd_cc_submit', 'zxd_cc_submit' );
add_action( 'wp_ajax_zxd_cc_submit', 'zxd_cc_submit');
function zxd_cc_submit(){
$zxdCatUrl = $_POST['catZxd'];
$zxdCurrentPostID = (int)$_POST['currentID'];
$items1 = explode('/',$zxdCatUrl);
$zxdCatSlug = $items1[count($items1)-1]?$items1[count($items1)-1]:$items1[count($items1)-2];
$items2 = explode('=',$zxdCatSlug);
if($items2[0] == '?cat') $zxdCatId = (int)$items2[1];
else{
$zxdCatObj = get_category_by_slug($zxdCatSlug);
$zxdCatId = $zxdCatObj->term_id;
}
$zxdArgs = array(
'parent' => $zxdCatId,
'orderby' => 'slug',
'order' => 'ASC',
'hide_empty' => 1,
);
$zxdChildCats = get_categories( $zxdArgs );
echo '<ul class="child_cat hide">' ;
if(!empty($zxdChildCats)){
$zxdChildCatsIdArray =array();
foreach($zxdChildCats as $zxdtemp1){
array_push($zxdChildCatsIdArray, $zxdtemp1->term_id);
}
$zxdArgs2 = array(
'post_type' => 'post',
'category__in' => array($zxdCatId),
'category__not_in' => $zxdChildCatsIdArray,
);
foreach ($zxdChildCats as $zxdEachCatChild){
$zxdCatChildId = $zxdEachCatChild ->term_id;
$zxdCatChildDesc = $zxdEachCatChild->description;
$zxdCatChildCount = $zxdEachCatChild->count;
if ( in_category( $zxdCatChildId,$zxdCurrentPostID )||zxd_post_is_in_descendant_category( $zxdCatChildId,$zxdCurrentPostID )) {
echo '<li class="zxd_ajax_cc_li"><span class="zxd_expand">[+]</span>'.'<a class="zxd_current_cat" href="'.get_category_link($zxdCatChildId).'" '.'title="'.$zxdCatChildDesc.'">'.get_cat_name( $zxdCatChildId ).'</a>'.'('.$zxdCatChildCount.')'.'</li>';
}
else{
echo '<li class="zxd_ajax_cc_li"><span class="zxd_expand">[+]</span>'.'<a href="'.get_category_link($zxdCatChildId).'" '.'title="'.$zxdCatChildDesc.'">'.get_cat_name( $zxdCatChildId ).'</a>'.'('.$zxdCatChildCount.')'.'</li>';
}
};
}
else{
$zxdArgs2 = array(
'post_type' => 'post',
'category__in' => array($zxdCatId),
);
};
$zxdQuery = new WP_Query($zxdArgs2);
if($zxdQuery->have_posts()){
while ($zxdQuery->have_posts()) {
$zxdQuery->the_post();
echo '<li class="zxd_ajax_cc_li"><a';
if ($zxdQuery->post->ID==$zxdCurrentPostID) echo ' class="zxd_current_cat"';
echo ' href="';
echo the_permalink();
echo '" rel="bookmark" title="';
echo the_title_attribute();
echo '">';
echo the_title();
echo '</a></li>';
}
}
echo '</ul>' ;
exit;
} |
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