function loop_related_posts($atts, $content)
{
global $post;
$outputs = array();
$current_count = 0;
if (CCS_Loop::$state['is_loop']) {
$post_id = CCS_Loop::$state['current_post_id'];
$post_type = do_ccs_shortcode('[field post-type]', false);
} elseif (!empty($post)) {
$post_id = $post->ID;
$post_type = $post->post_type;
} else {
$post_id = 0;
$post_type = 'any';
}
extract(shortcode_atts(array('type' => '', 'taxonomy' => 'category', 'field' => '', 'taxonomy_field' => '', 'value' => '', 'subfield' => '', 'count' => '', 'children' => '', 'order' => 'DESC', 'orderby' => 'date', 'relation' => 'or', 'operator' => 'in', 'trim' => ''), $atts));
if (!empty($type)) {
$post_type = CCS_Loop::explode_list($type);
}
if (empty($field) && isset($atts[0])) {
$field = $atts[0];
}
if (!empty($taxonomy_field)) {
$terms = do_ccs_shortcode('[field ' . $taxonomy_field . ']', false);
$terms = CCS_Loop::explode_list($terms);
if (empty($terms) || count($terms) == 0) {
return;
}
$taxonomies = array();
$term_objects = array();
foreach ($terms as $term) {
$term = self::get_term_by_id($term);
$tax = $term->taxonomy;
if (!in_array($tax, $taxonomies)) {
$taxonomies[] = $term->taxonomy;
}
$term_objects[] = $term;
}
$taxonomy = implode(',', $taxonomies);
$terms = $term_objects;
}
/*---------------------------------------------
*
* ACF relationship field
*
*/
if ((!empty($field) || !empty($subfield)) && empty($value)) {
if (class_exists('CCS_To_ACF') && CCS_To_ACF::is_acf_active()) {
return CCS_To_ACF::loop_relationship_field($atts, $content);
}
}
/*---------------------------------------------
*
* Related posts by taxonomy
*
*/
if (empty($count)) {
$count = 99999;
}
// Hypothetical maximum number of posts
if (!empty($taxonomy)) {
self::$state['is_related_posts_loop'] = true;
// Support multiple taxonomies
$taxonomies = CCS_Loop::explode_list($taxonomy);
$relation = strtoupper($relation);
$tax_count = 0;
$query = array('post_type' => $post_type, 'posts_per_page' => -1, 'order' => $order, 'orderby' => $orderby, 'tax_query' => array());
$target_terms = array();
foreach ($taxonomies as $current_taxonomy) {
if ($current_taxonomy == 'tag') {
$current_taxonomy = 'post_tag';
}
// Get current post's taxonomy terms - unless given
if (!isset($terms)) {
$term_objects = CCS_Content::get_the_terms_silently($post_id, $current_taxonomy);
} else {
$term_objects = $terms;
}
if (!is_array($term_objects) || empty($term_objects)) {
continue;
}
foreach ($term_objects as $term) {
$target_terms[$current_taxonomy][] = $term->term_id;
}
if (empty($target_terms[$current_taxonomy])) {
continue;
}
if ($tax_count == 1) {
$query['tax_query']['relation'] = $relation;
}
$query['tax_query'][] = array('taxonomy' => $current_taxonomy, 'field' => 'id', 'terms' => $target_terms[$current_taxonomy], 'operator' => strtoupper($operator), 'include_children' => $children == 'true');
$tax_count++;
}
$terms = $target_terms;
// print_r($query); echo '<br><br>';
$posts = new WP_Query($query);
if ($posts->have_posts()) {
while ($posts->have_posts()) {
// Set up post data
$posts->the_post();
// Skip current post
if ($post->ID != $post_id) {
// Manually filter out terms..
// For some reason, WP_Query is returning more than we need
$condition = false;
$tax_count = 0;
foreach ($taxonomies as $current_taxonomy) {
if ($current_taxonomy == 'tag') {
$current_taxonomy = 'post_tag';
}
// Include child terms
if ($children == 'true' && isset($terms[$current_taxonomy])) {
foreach ($terms[$current_taxonomy] as $this_term) {
$child_terms = get_term_children($this_term, $current_taxonomy);
if (!empty($child_terms)) {
foreach ($child_terms as $child_term) {
if (!in_array($child_term, $terms[$current_taxonomy])) {
$terms[$current_taxonomy][] = $child_term;
}
}
}
}
}
if (isset($terms[$current_taxonomy])) {
$tax_count++;
if ($relation == 'AND') {
if (has_term($terms[$current_taxonomy], $current_taxonomy)) {
if ($condition || $tax_count == 1) {
$condition = true;
}
}
} else {
if (has_term($terms[$current_taxonomy], $current_taxonomy)) {
$condition = true;
}
}
}
}
if ($condition) {
// OK, post fits the criteria
self::$state['current_related_post_id'] = $post->ID;
$current_count++;
if ($current_count <= $count) {
$outputs[] = do_ccs_shortcode($content);
}
}
}
}
}
wp_reset_postdata();
self::$state['is_related_posts_loop'] = false;
}
$out = implode('', $outputs);
if (!empty($trim)) {
$out = CCS_Format::trim($out, $trim);
}
return $out;
}
