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<?php
/**
* Functionality relevant to posts (single and multiple)
*/
class Bunyad_Posts
{
public $more_text;
public $more_html;
public function __construct()
{
// add offsets support
add_filter('found_posts', array($this, 'fix_offset_pagination'), 10, 2);
add_action('pre_get_posts', array($this, 'pre_get_posts'));
}
/**
* Custom excerpt function - utilize existing wordpress functions to add real support for <!--more-->
* to excerpts which is missing in the_excerpt().
*
* Maintain plugin functionality by utilizing wordpress core functions and filters.
*
* @param string|null $text
* @param integer $length
* @param array $options add_more: add more if needed, more_text = more link anchor, force_more: always add more link
* @return string
*/
public function excerpt($text = null, $length = 55, $options = array())
{
global $more;
// add defaults
$options = array_merge(array('add_more' => null, 'force_more' => null), $options);
// add support for <!--more--> cut-off on custom home-pages and the like
$old_more = $more;
$more = false;
// override options
$more_text = $this->more_text;
extract($options);
// set global more_text - used by excerpt_read_more()
$this->more_text = $more_text;
if (!$text) {
// have a manual excerpt?
if (has_excerpt()) {
return apply_filters('the_excerpt', get_the_excerpt()) . ($force_more ? $this->excerpt_read_more() : '');
}
// don't add "more" link
$text = get_the_content('');
}
$text = strip_shortcodes(apply_filters('bunyad_excerpt_pre_strip_shortcodes', $text));
$text = str_replace(']]>', ']]>', $text);
// get plaintext excerpt trimmed to right length
$excerpt = wp_trim_words($text, intval($length), apply_filters('bunyad_excerpt_hellip', '…') . ($add_more !== false ? $this->excerpt_read_more() : ''));
/*
* Force "More" link?
*
* wp_trim_words() will only add the read more link if it's needed - if the length actually EXCEEDS. In some cases,
* for styling, read more has to be always present.
*
*/
if ($force_more) {
$read_more = $this->excerpt_read_more();
if (substr($excerpt, -strlen($read_more)) !== $read_more) {
$excerpt .= $this->excerpt_read_more();
}
}
// fix extra spaces
$excerpt = trim(str_replace(' ', ' ', $excerpt));
// apply filters after to prevent added html functionality from being stripped
// REMOVED: the_content filters often clutter the HTML - use the_excerpt filter instead
// $excerpt = apply_filters('the_content', $excerpt);
$excerpt = apply_filters('the_excerpt', apply_filters('get_the_excerpt', $excerpt));
// revert
$more = $old_more;
return $excerpt;
}
/**
* Wrapper for the_content()
*
* @see the_content()
*/
public function the_content($more_link_text = null, $strip_teaser = false)
{
// add <!--more--> support on static pages when not using excerpts
if (is_page()) {
global $more;
$more = 0;
}
// get the content
$content = get_the_content($more_link_text, $strip_teaser);
// delete first gallery shortcode if featured area is enabled
if (get_post_format() == 'gallery' && !$this->meta('featured_disable')) {
$content = $this->_strip_shortcode_gallery($content);
}
// apply bunyad_main_content filters first - for page builder
$content = apply_filters('the_content', $content, 'bunyad_main_content');
$content = str_replace(']]>', ']]>', $content);
echo $content; // pre-filtered/escaped content from get_the_content()
}
/**
* Deletes first gallery shortcode and returns content
*/
public function _strip_shortcode_gallery($content)
{
preg_match_all('/'. get_shortcode_regex() .'/s', $content, $matches, PREG_SET_ORDER);
if (!empty($matches))
{
foreach ($matches as $shortcode)
{
if ('gallery' === $shortcode[2])
{
$pos = strpos($content, $shortcode[0]);
if ($pos !== false) {
return substr_replace($content, '', $pos, strlen($shortcode[0]));
}
}
}
}
return $content;
}
public function get_first_gallery_ids($content = null)
{
if (!$content) {
$content = get_the_content();
}
preg_match_all('/'. get_shortcode_regex() .'/s', $content, $matches, PREG_SET_ORDER);
if (!empty($matches))
{
foreach ($matches as $shortcode)
{
if ('gallery' === $shortcode[2])
{
$atts = shortcode_parse_atts($shortcode[3]);
if (!empty($atts['ids'])) {
$ids = explode(',', $atts['ids']);
return $ids;
}
}
}
}
return false;
}
/**
* Get custom post meta
*
* @param string|null $key
* @param integer|null $post_id
* @param boolean $defaults whether or not to use default options mapped to certain keys - only when $key is set
* @uses Bunyad::options() used when defaults are tested for a specific key
*/
public function meta($key = null, $post_id = null, $defaults = true)
{
$prefix = Bunyad::options()->get_config('meta_prefix') . '_';
if (!$post_id) {
global $post;
$post_id = $post->ID;
}
if (is_string($key)) {
$meta = get_post_meta($post_id, $prefix . $key, true);
/**
* Use values from specified key mapping of Bunyad::options() if meta value is empty
*/
if ($defaults) {
// bool_inverse will inverse the value in Bunyad::options()
$default_map = array(
'featured_disable' => array('key' => 'show_featured', 'bool_inverse' => true),
'layout_template' => array('key' => 'post_layout_template', 'bool_inverse' => false),
);
// have a key association with theme settings?
if (!$meta && array_key_exists($key, $default_map)) {
$expression = Bunyad::options()->get($default_map[$key]['key']);
return ($default_map[$key]['bool_inverse'] ? !$expression : $expression);
}
}
return apply_filters('bunyad_meta_' . $key, $meta);
}
else
{
$meta = get_post_custom($post_id);
$new_meta = array();
foreach ($meta as $key => $value)
{
// prefix at beginning?
if (strpos($key, $prefix) === 0) {
$new_meta[$key] = $this->_fix_meta_value($value);
}
}
return $new_meta;
}
}
// helper to fix meta value
private function _fix_meta_value($value) {
if (count($value) === 1) {
return $value[0];
}
return $value;
}
/**
* Get meta for page first if available
*/
public function page_meta($key = null, $post_id = null)
{
global $page;
if (!$post_id) {
$post_id = $page->ID;
}
return $this->meta($key, $post_id);
}
/**
* Get related posts
*
* @param integer $count number of posts to return
* @param integer|null $post_id
*/
public function get_related($count = 5, $post_id = null)
{
if (!$post_id) {
global $post;
$post_id = $post->ID;
}
if (Bunyad::options()->related_posts_yarpp && function_exists('yarpp_get_related')) {
return yarpp_get_related(array('limit' => $count), $post_id);
}
$args = array(
'numberposts' => $count,
'post__not_in' => array($post_id)
);
// get related posts using tags or categories?
if (Bunyad::options()->related_posts_by == 'tags') {
$args['tag__in'] = wp_get_post_tags($post_id, array('fields' => 'ids'));
}
else {
$args['category__in'] = wp_get_post_categories($post_id);
}
$related = get_posts(apply_filters('bunyad_get_related_query', $args));
return (array) $related;
}
/**
* Custom pagination
*
* @param array $options Extend options for paginate_links()
* @param WP_Query|null $query WP_Query object if it's a custom query
* @see paginate_links()
*/
public function paginate($options = array(), $query = null)
{
global $wp_rewrite;
if (!$query) {
global $wp_query;
$query = $wp_query;
}
// Query has to an object
if (!is_object($query)) {
return '';
}
$total_pages = (!empty($options['total_pages']) ? $options['total_pages'] : $query->max_num_pages);
if ($total_pages <= 1) {
return '';
}
// use page on static front-page - paged isn't set there
// non-static home-page, and other archives use paged
$paged = ($query->get('paged') ? $query->get('paged') : $query->get('page'));
$args = array(
//'base' => add_query_arg('paged', '%#%'),
//'format' => '',
'current' => max(1, $paged),
'total' => $total_pages,
// accessibility + fontawesome for pagination links
'next_text' => '<span class="visuallyhidden">' . _x('Next', 'pagination', 'bunyad') . '</span><i class="fa fa-angle-right"></i>',
'prev_text' => '<i class="fa fa-angle-left"></i><span class="visuallyhidden">' . _x('Previous', 'pagination', 'bunyad') . '</span>'
);
$pagination = paginate_links(array_merge($args, $options));
// add wrapper?
if (!empty($options['wrapper_before'])) {
$pagination = $options['wrapper_before'] . $pagination . $options['wrapper_after'];
}
return $pagination;
/* Pre-WordPress 4.1 code - Uncomment if you really need that old version
if ($wp_rewrite->using_permalinks() && !is_search()) {
// Use an unlikely page number with get_pagenum_link() to get the format /page/1?q=1 instead of /?q=1/page/1
// Note: Don't use a small number - which can be used in a directory name or domain name and would be replaced below.
$number = 999999999;
$url = get_pagenum_link($number);
// Fix for custom query strings in the URL such as ?portfolio=x&cat=y
//
// get_pagenum_links() adds current URL query args. paginate_links() will also auto-add all the current query args
// to the final URL. Hence, query string needs to removed here.
$url = explode('?', $url);
$args['base'] = str_replace($number, '%#%', $url[0]);
}
// No longer needed as the search permalinks are skipped above, due to bug #30831 in WordPress core
// if (is_search()) {
// $args['add_args'] = array('s' => urlencode(get_query_var('s')));
// }
$pagination = paginate_links(array_merge($args, $options));
// remove first paged=1 and page/1/ from the first link
$pagination = preg_replace(
array('/&paged=1(\'|")/', "#{$wp_rewrite->pagination_base}/1/('|\")#"), '\\1', trim($pagination)
);
// add wrapper?
if (!empty($options['wrapper_before'])) {
$pagination = $options['wrapper_before'] . $pagination . $options['wrapper_after'];
}
return $pagination;*/
}
/**
* Fix query LIMIT when using offsets
*
* @param object $query
*/
public function fix_query_offset(&$query)
{
if (empty($query->query_vars['offset']) OR empty($query->query_vars['orig_offset'])) {
return;
}
if ($query->is_paged) {
// manually determine page query offset (offset + current page (minus one) x posts per page)
$page_offset = $query->query_vars['offset'] + (($query->query_vars['paged'] - 1) * $query->query_vars['posts_per_page']);
$query->set('offset', $page_offset);
}
else {
// first page? just use the offset
$query->set('offset', $query->query_vars['offset']);
}
}
/**
* Preserve original offset query var as it will be changed
*
* @param object $query
*/
public function add_query_offset($query = array())
{
if (isset($query['offset'])) {
$query['orig_offset'] = $query['offset'];
}
return $query;
}
/**
* A wrapper for common pre_get_posts filters
*
* @param object $query
*/
public function pre_get_posts(&$query)
{
$this->fix_query_offset($query);
}
/**
* Fix found_posts when an offset is set
*
* WordPress found_posts doesn't account for offset.
* @param integer $found_posts
* @param object $query
*/
public function fix_offset_pagination($found_posts, $query)
{
if (empty($query->query_vars['offset']) OR empty($query->query_vars['orig_offset'])) {
return $found_posts;
}
$offset = $query->query_vars['orig_offset'];
// reduce WordPress's found_posts count by the offset...
return $found_posts - $offset;
}
/**
* Add the read more text to excerpts
*/
public function excerpt_read_more()
{
global $post;
if (is_feed()) {
return ' [...]';
}
// add more link if enabled in options
if (Bunyad::options()->read_more) {
$text = $this->more_text;
if (!$text) {
$text = __('Read More', 'bunyad');
}
if (empty($this->more_html)) {
$this->more_html = '<div class="read-more"><a href="%s" title="%s">%s</a></div>';
}
return sprintf(apply_filters('bunyad_read_more_html', $this->more_html), get_permalink($post->ID), esc_attr($text), $text);
}
return '';
}
}