public function run($new_status, $old_status, $post)
{
// verify this is not an auto save routine.
if (defined('DOING_AUTOSAVE') && DOING_AUTOSAVE) {
return;
}
// Only count on post type 'post'
if ('post' != $post->post_type) {
return;
}
// Post status must be publish
if ('publish' != $new_status) {
return;
}
// Is automatic linking enabled?
if (1 != RP4WP::get()->settings->get_option('automatic_linking')) {
return;
}
// Check if the current post is already auto linked
if (1 != get_post_meta($post->ID, RP4WP_Constants::PM_POST_AUTO_LINKED, true)) {
// Get automatic linking post amount
$automatic_linking_post_amount = RP4WP::get()->settings->get_option('automatic_linking_post_amount');
// Related Posts Manager
$related_post_manager = new RP4WP_Related_Post_Manager();
// Link related posts
$related_post_manager->link_related_post($post->ID, $automatic_linking_post_amount);
// Set the auto linked meta
update_post_meta($post->ID, RP4WP_Constants::PM_POST_AUTO_LINKED, 1);
}
}
public function run()
{
// Check nonce
check_ajax_referer(RP4WP_Constants::NONCE_AJAX, 'nonce');
// Get the PPR
$ppr = isset($_POST['ppr']) ? $_POST['ppr'] : 5;
// Get the Post Type
$post_type = isset($_POST['pt']) ? $_POST['pt'] : null;
// Check if Post Type is set
if (null == $post_type) {
echo 'No Post Type set!';
}
// the rel amount
$rel_amount = 3;
if (isset(RP4WP::get()->settings['general_' . $post_type])) {
// set the correct options from step 3
$rel_amount = RP4WP::get()->settings['general_' . $post_type]->get_option('automatic_linking_post_amount');
}
// Related Post Manager object
$related_post_manager = new RP4WP_Related_Post_Manager();
// Link posts
$related_post_manager->link_related_posts($rel_amount, $post_type, $ppr);
// Get unlinked post count
$unlinked_post_count = $related_post_manager->get_unlinked_post_count($post_type);
// Echo the uncached posts
echo $unlinked_post_count;
exit;
}
public function run()
{
// check nonce
check_ajax_referer(RP4WP_Constants::NONCE_AJAX, 'nonce');
// get the rel amount
$rel_amount = isset($_POST['rel_amount']) ? $_POST['rel_amount'] : 3;
// get the related post age
$post_age = isset($_POST['rp4wp_related_posts_age']) ? $_POST['rp4wp_related_posts_age'] : 0;
// check if Post Type is set
if (!isset($_POST['pt'])) {
echo 'No Post Type set!';
exit;
}
// post Type
$post_type = $_POST['pt'];
if (isset(RP4WP::get()->settings['general_' . $post_type])) {
// set the correct options from step 3
$options = RP4WP::get()->settings['general_' . $post_type]->get_options();
$options['automatic_linking_post_amount'] = $rel_amount;
$options['max_post_age'] = $post_age;
update_option('rp4wp_general_' . $post_type, $options);
}
// success
echo 'success';
exit;
}
public function run()
{
if (is_single()) {
$css = trim(RP4WP::get()->settings->get_option('css'));
if ('' != $css) {
echo "<style type='text/css'>" . $css . "</style>" . PHP_EOL;
}
}
}
/**
* Get the column CSS class
*
* @param $row_counter
*
* @return string
*/
public static function get_column_class($row_counter)
{
$row_class = '';
$cols_per_row = RP4WP::get()->settings['configurator']->get_option('posts_per_row');
$mod = $row_counter % $cols_per_row;
if (0 === $mod) {
$row_class .= ' rp4wp-col-first';
}
if ($cols_per_row - 1 == $mod) {
$row_class .= ' rp4wp-col-last';
}
return $row_class;
}
/**
* Ran on WP admin_init hook
*/
public function admin_init()
{
$this->load_errors();
add_action('shutdown', array($this, 'store_errors'));
add_action('pre_set_site_transient_update_plugins', array($this, 'check_for_updates'));
add_filter('plugins_api', array($this, 'plugins_api'), 10, 3);
// Get License options
$license_options = RP4WP::get()->settings['license']->get_options();
// Setup plugin data
$this->plugin_data = get_plugin_data($this->plugin_file);
$this->api_key = $license_options['licence_key'];
$this->activation_email = $license_options['email'];
// Activated notice
if (!empty($_GET['dismiss-' . sanitize_title($this->plugin_slug)])) {
update_option($this->plugin_slug . '_hide_key_notice', 1);
}
if (false == RP4WP_Updater_Key_API::is_activated() && sizeof($this->errors) === 0 && !get_option($this->plugin_slug . '_hide_key_notice')) {
add_action('admin_notices', array($this, 'key_notice'));
}
add_action('admin_notices', array($this, 'error_notices'));
}
public function run($new_status, $old_status, $post)
{
// verify this is not an auto save routine.
if (defined('DOING_AUTOSAVE') && DOING_AUTOSAVE) {
return;
}
// Post status must be publish
if ('publish' != $new_status) {
return;
}
// Check if this post type is installed
$pt_manager = new RP4WP_Post_Type_Manager();
if (!$pt_manager->is_post_type_installed($post->post_type)) {
return;
}
// Is automatic linking enabled?
if (1 != RP4WP::get()->settings['general_' . $post->post_type]->get_option('automatic_linking')) {
return;
}
// Check if the current post is already auto linked
if (1 != get_post_meta($post->ID, RP4WP_Constants::PM_POST_AUTO_LINKED, true)) {
// Post Link Manager
$pl_manager = new RP4WP_Post_Link_Manager();
// Get automatic linking post amount
$automatic_linking_post_amount = RP4WP::get()->settings['general_' . $post->post_type]->get_option('automatic_linking_post_amount');
// Count already linked posts
$already_linked_posts = $pl_manager->get_children_count($post->ID);
// Subtract already linked post count from posts to link amount
if (count($already_linked_posts) > 0) {
$automatic_linking_post_amount = $automatic_linking_post_amount - $already_linked_posts;
}
// Related Posts Manager
$related_post_manager = new RP4WP_Related_Post_Manager();
// Link related posts
$related_post_manager->link_related_post($post->ID, $post->post_type, $automatic_linking_post_amount);
// Set the auto linked meta
update_post_meta($post->ID, RP4WP_Constants::PM_POST_AUTO_LINKED, 1);
}
}
/**
* Generate the children list
*
* @param $id
*
* @since 1.0.0
* @access public
*
* @return string
*/
public function generate_children_list($id)
{
// The content
$content = '';
// Get the children
$related_posts = $this->get_children($id);
// Count
if (count($related_posts) > 0) {
// The rp4wp block
$content .= "<div class='rp4wp-related-posts'>\n";
// Get the heading text
$heading_text = RP4WP::get()->settings->get_option('heading_text');
// Check if there is a heading text
if ('' != $heading_text) {
// Add heading text plus heading elements
$heading_text = '<h3>' . $heading_text . '</h3>' . PHP_EOL;
}
// Filter complete heading
$content .= apply_filters('rp4wp_heading', $heading_text);
// Open the list
$content .= "<ul>\n";
foreach ($related_posts as $rp4wp_post) {
// Setup the postdata
setup_postdata($rp4wp_post);
// Output the linked post
$content .= "<li>";
if (1 == RP4WP::get()->settings->get_option('display_image')) {
if (has_post_thumbnail($rp4wp_post->ID)) {
/**
* Filter: 'rp4wp_apdc_thumbnail_size' - Allows changing the thumbnail size of the thumbnail in de APDC section
*
* @api String $thumbnail_size The current/default thumbnail size.
*/
$thumb_size = apply_filters('rp4wp_thumbnail_size', 'thumbnail');
$content .= "<div class='rp4wp-related-post-image'>" . PHP_EOL;
$content .= "<a href='" . get_permalink($rp4wp_post->ID) . "'>";
$content .= get_the_post_thumbnail($rp4wp_post->ID, $thumb_size);
$content .= "</a>";
$content .= "</div>" . PHP_EOL;
}
}
$content .= "<div class='rp4wp-related-post-content'>" . PHP_EOL;
$content .= "<a href='" . get_permalink($rp4wp_post->ID) . "'>" . $rp4wp_post->post_title . "</a>";
$excerpt_length = RP4WP::get()->settings->get_option('excerpt_length');
if ($excerpt_length > 0) {
$excerpt = '' != $rp4wp_post->post_excerpt ? $rp4wp_post->post_excerpt : wp_trim_words($rp4wp_post->post_content, $excerpt_length);
$content .= "<p>" . $excerpt . "</p>";
}
$content .= "</div>" . PHP_EOL;
$content .= "</li>\n";
// Reset the postdata
wp_reset_postdata();
}
// Close the wrapper div
$content .= "</ul>\n";
$content .= "</div>\n";
}
return $content;
}
/**
* @since 1.0.0
* @access public
*
* @return RP4WP
*/
function RP4WP()
{
return RP4WP::get();
}
/**
* Get the component related CSS
*
* @return string
*/
public function get_component_css()
{
// get css from transient
$css = get_transient(RP4WP_Constants::TRANSIENT_COMPONENT_CSS);
// check if transient is set
if (false === $css) {
$css = '';
// load configuration
$components = $this->get_components();
// check
if (count($components) > 0) {
// Get options
$cols = RP4WP::get()->settings['configurator']->get_option('posts_per_row');
$fixed_height = RP4WP::get()->settings['configurator']->get_option('fixed_height');
$col_width_normal = 100 / $cols + 1;
$col_width_edges = 100 / $cols - 1;
// Basic component styling
$css .= 'ul.rp4wp-posts-list {float: left;}
.rp4wp-col {
width: 100%;
margin-bottom: 30px;
list-style:none;
box-sizing: border-box;
overflow:hidden;
float: left;
}
.rp4wp_component_wrapper {
width: 100%;
float: left;
}
.rp4wp_component {
width: 100%;
padding: 0 0 5%;
box-sizing: border-box;
float: left;
overflow: hidden;
}
.rp4wp_component a {border:0;}
.rp4wp_component_image a {display:block; height:100%} .rp4wp_component_image img {width:100%;height:100%;}
.rp4wp_component_title a {text-decoration: none; font-weight: bold; border: 0;}
@media (min-width: 768px) {
.rp4wp-col {
width: ' . $col_width_normal . '%;
' . (0 != $fixed_height ? 'height:' . $fixed_height . 'px;' : '') . '
padding: 0 2%;
}
.rp4wp-col-first {
width: ' . $col_width_edges . '%;
padding-left:0;
padding-right: 2%;
}
.rp4wp-col-last {
width: ' . $col_width_edges . '%;
padding-right:0;
padding-left: 2%;
}
.rp4wp_component_wrapper {
width: 50%;
}
.rp4wp_component_wrapper_left {
padding-right: 5%;
}
.rp4wp_component_wrapper_right {
padding-left:5%;
}
}
';
// rtl support
if (is_rtl()) {
$css .= '
.rp4wp-col {
float: right;
}
@media (min-width: 768px) {
.rp4wp-col-first {
padding-right:0;
padding-left: 2%;
}
.rp4wp-col-last {
padding-left:0;
padding-right: 2%;
}
.rp4wp_component_wrapper_left {
padding-left: 5%;
padding-right: 0;
}
.rp4wp_component_wrapper_right {
padding-right:5%;
padding-left: 0;
}
}
';
}
// Loop through components
foreach ($components as $component) {
// width: ' . ( 50 * $component->width ) . '%;
// add component with the correct height
$css .= '.rp4wp_component_' . $component->id . '{
height: ' . 20 * $component->height . '%;
}';
// add dynamic height for components in wrapper
if ('wrapper' == $component->type) {
foreach ($component->components as $inner_component) {
$css .= '.rp4wp_component_' . $inner_component->id . '{
height: ' . 100 / $component->height * $inner_component->height . '%;
}';
}
}
}
// Load & add custom CSS
$custom_css = RP4WP::get()->settings['configurator']->get_option('css');
if ('' !== $custom_css) {
$css .= $custom_css;
}
// Output the CSS
$css = trim($css);
}
// set transient
set_transient(RP4WP_Constants::TRANSIENT_COMPONENT_CSS, $css);
}
return $css;
}
/**
* Install a post type. This includes caching and linking post types.
*
* ## OPTIONS
*
* <post_type>
* : The post type where related posts are linked to
*
* <linked_post_types>
* : The post types (comma separated) which are linked to the first argument
*
* <rel_amount>
* : The amount of related posts per post
*
* [<max_post_age>]
* : The maximum age of a related post in days
*
* ## EXAMPLE
*
* wp rp4wp remove_related post
*
* @synopsis <post_type> <linked_post_types> <rel_amount> [<max_post_age>]
*/
public function install($args, $assoc_args)
{
// args
$post_type = trim($args[0]);
$linked_post_types = explode(',', trim($args[1]));
$rel_amount = intval($args[2]);
$max_post_age = intval(isset($args[3]) ? $args[3] : 0);
// we need at least one linked post type to continue
if (count($linked_post_types) > 0) {
/**
* SETTINGS
*/
// set the linked post types
$ptm = new RP4WP_Post_Type_Manager();
$ptm->add_post_type($post_type, $linked_post_types);
// set the post type options
if (isset(RP4WP::get()->settings['general_' . $post_type])) {
$options = RP4WP::get()->settings['general_' . $post_type]->get_options();
$options['automatic_linking_post_amount'] = $rel_amount;
$options['max_post_age'] = $max_post_age;
update_option('rp4wp_general_' . $post_type, $options);
}
/**
* CACHE POSTS
*/
WP_CLI::line('Caching Words');
// related word manage
$related_word_manager = new RP4WP_Related_Word_Manager();
// cache words of parent post type
$related_word_manager->save_all_words($post_type);
// cache words of linked post types
foreach ($linked_post_types as $linked_post_type) {
$related_word_manager->save_all_words($linked_post_type);
}
/**
* LINK POSTS
*/
WP_CLI::line('Linking Posts');
$related_post_manager = new RP4WP_Related_Post_Manager();
$related_post_manager->link_related_posts($rel_amount, $post_type);
// output success
WP_CLI::success(sprintf('Successfully installed %s', $post_type));
}
}
/**
* An update is required, do it
*
* @param $current_version
*/
private function do_upgrade($current_version)
{
global $wpdb;
// Upgrade to version 1.2.2
if (version_compare($current_version, '1.2.2', '<')) {
/**
* Add a post type to currently existing links
*/
// Get id's that need an upgrade
$upgrade_ids = get_posts(array('post_type' => RP4WP_Constants::LINK_PT, 'fields' => 'ids', 'posts_per_page' => -1, 'meta_query' => array(array('key' => RP4WP_Constants::PM_PT_PARENT, 'value' => '1', 'compare' => 'NOT EXISTS'))));
// Preparing the sql lines
if (count($upgrade_ids) > 0) {
$sql_lines = array();
// Loop
foreach ($upgrade_ids as $upgrade_id) {
$sql_lines[] = "(" . $upgrade_id . ", '" . RP4WP_Constants::PM_PT_PARENT . "', 'post')";
}
// Insert the rows
$wpdb->query("INSERT INTO `{$wpdb->postmeta}` (`post_id`,`meta_key`,`meta_value`) VALUES" . implode(',', $sql_lines) . " ;");
}
}
// Upgrade to 1.3.0
if (version_compare($current_version, '1.3.0', '<')) {
/**
* Upgrade the 'rp4wp_installed_post_types' option
*/
// Get old post types
$old_installed_post_types = get_option(RP4WP_Constants::OPTION_INSTALLED_PT, array());
// Check
if (count($old_installed_post_types) > 0) {
// New installed post types
$installed_post_types = array();
// Loop
foreach ($old_installed_post_types as $old_installed_post_type => $old_installed_post_type_children) {
if (is_array($old_installed_post_type_children)) {
$installed_post_types[$old_installed_post_type] = $old_installed_post_type_children;
} else {
$installed_post_types[$old_installed_post_type_children] = array($old_installed_post_type_children);
}
}
// Set new option
update_option(RP4WP_Constants::OPTION_INSTALLED_PT, $installed_post_types);
}
/**
* Upgrade license key and email
*/
// Fetch old license key and email
$plugin_slug = str_replace('.php', '', basename(RP4WP_PLUGIN_FILE));
$api_key = get_option($plugin_slug . '_licence_key', '');
$activation_email = get_option($plugin_slug . '_email', '');
// Check if values exist
if ('' != $api_key && '' != $activation_email) {
// Update option
update_option('rp4wp_license', array('licence_key' => $api_key, 'email' => $activation_email));
// Set local activation status to true
RP4WP_Updater_Key_API::set_activated(true);
}
}
// upgrade to 1.4.0, the configurator
if (version_compare($current_version, '1.4.0', '<')) {
// get installed post types
$pt_manager = new RP4WP_Post_Type_Manager();
$installed_post_types = $pt_manager->get_installed_post_types();
// check
if (count($installed_post_types) > 0) {
// get first pt
foreach ($installed_post_types as $settings_pt => $dump) {
break;
}
unset($dump);
// get current theme option
$theme_options = get_option('rp4wp_themes', array());
// get settings
$pt_settings = RP4WP::get()->settings['general_' . $settings_pt];
// configurator options
$configurator_options = array('posts_per_row' => isset($theme_options['theme']) && intval($theme_options['theme']) > 0 ? intval($theme_options['theme']) : 2, 'fixed_height' => 325, 'css' => isset($theme_options['css']) ? $theme_options['css'] : '');
// get settings from first pt
$display_image = intval($pt_settings->get_option('display_image'));
$excerpt_length = intval($pt_settings->get_option('excerpt_length'));
// set the right configuration
if (1 == $display_image && $excerpt_length > 0) {
// image + title + excerpt
$configurator_options['configuration'] = '[{"type":"image","x":0,"y":0,"width":1,"height":5},{"type":"title","x":1,"y":0,"width":1,"height":2},{"type":"excerpt","x":1,"y":2,"width":1,"height":3}]';
} else {
if (1 == $display_image) {
// title + image
$configurator_options['configuration'] = '[{"type":"title","x":0,"y":0,"width":2,"height":1},{"type":"image","x":0,"y":1,"width":2,"height":4}]';
} else {
if ($excerpt_length > 0) {
// title + excerpt
$configurator_options['configuration'] = '[{"type":"title","x":0,"y":0,"width":2,"height":1},{"type":"excerpt","x":0,"y":1,"width":2,"height":4}]';
} else {
// title only
$configurator_options['configuration'] = '[{"type":"title","x":0,"y":0,"width":2,"height":5}]';
}
}
}
// set configuration option
update_option('rp4wp_configurator', $configurator_options);
// delete old theme options
delete_option('rp4wp_themes');
}
}
// Upgrade to 1.5.0
if (version_compare($current_version, '1.5.0', '<')) {
/**
* Add INDEX to word column in cache table
*/
// check for index
$wpdb->query("SHOW INDEX FROM `" . $wpdb->prefix . "rp4wp_cache` WHERE KEY_NAME = 'word'");
if (0 === intval($wpdb->num_rows)) {
// add index
$wpdb->query("ALTER TABLE `" . $wpdb->prefix . "rp4wp_cache` ADD INDEX(`word`);");
}
/**
* Move excluded post meta ID's to option to improve related post query
*/
// get all post ids that are excluded
$excluded_ids = get_posts(array('fields' => 'ids', 'posts_per_page' => -1, 'meta_query' => array(array('key' => 'rp4wp_exclude', 'value' => '1'))));
// check if there are any excluded posts
if (count($excluded_ids) > 0) {
// put excluded ids in comma separated string
$excluded_ids = implode(',', $excluded_ids);
// put in option
update_option(RP4WP_Constants::OPTION_EXCLUDED, $excluded_ids);
}
/**
* Delete CSS transient so the new frontend styling will apply after update
*/
delete_transient(RP4WP_Constants::TRANSIENT_COMPONENT_CSS);
}
// Upgrade to 1.5.2
if (version_compare($current_version, '1.5.2', '<')) {
// fix the excludes
$excludes = explode(',', get_option(RP4WP_Constants::OPTION_EXCLUDED, ''));
if (count($excludes) > 0) {
// trim values
$excludes = array_map('trim', $excludes);
// remove empty values
$excludes = array_filter($excludes);
// update option
update_option(RP4WP_Constants::OPTION_EXCLUDED, implode(',', $excludes));
}
}
}
/**
* Dev test flow
*
* ## OPTIONS
*
* ## EXAMPLES
*
* wp rp4wp-dev test
*/
public function test($args, $assoc_args)
{
$limit = 274;
// $limit = 10;
WP_CLI::line('Start rp4wp-dev test');
WP_CLI::line('---------------------');
// args
$post_type = 'post';
$linked_post_types = array('post');
$rel_amount = 3;
$max_post_age = 0;
/**
* UNINSTALL
*/
// Add the post types
$ptm = new RP4WP_Post_Type_Manager();
// Remove post type
$ptm->remove_post_type($post_type);
// Related post manager
$related_post_manager = new RP4WP_Related_Post_Manager();
// Remove linked related posts
$related_post_manager->remove_linked_posts($post_type);
// delete words
$word_manager = new RP4WP_Related_Word_Manager();
$word_manager->delete_words_by_post_type($post_type);
/**
* SETTINGS
*/
// set the linked post types
$ptm->add_post_type($post_type, $linked_post_types);
// set the post type options
if (isset(RP4WP::get()->settings['general_' . $post_type])) {
$options = RP4WP::get()->settings['general_' . $post_type]->get_options();
$options['automatic_linking_post_amount'] = $rel_amount;
$options['max_post_age'] = $max_post_age;
update_option('rp4wp_general_' . $post_type, $options);
}
/**
* CACHE POSTS
*/
WP_CLI::line('Start building word cache');
// related word manage
$related_word_manager = new RP4WP_Related_Word_Manager();
$start = time();
// cache words of parent post type
$related_word_manager->save_all_words($post_type, $limit);
// cache words of linked post types
foreach ($linked_post_types as $linked_post_type) {
$related_word_manager->save_all_words($linked_post_type, $limit);
}
$runtime = time() - $start;
$avg = $runtime / $limit;
WP_CLI::line(sprintf('Words cached - Runtime: %d - Average: %f', $runtime, $avg));
$start = time();
/**
* LINK POSTS
*/
WP_CLI::line('Start linking posts');
$related_post_manager->link_related_posts($rel_amount, $post_type, $limit);
$runtime = time() - $start;
$avg = $runtime / $limit;
WP_CLI::line(sprintf('Posts linked - Runtime: %d - Average: %f', $runtime, $avg));
// output success
WP_CLI::success(sprintf('Successfully installed %s', $post_type));
}
/**
* Get related posts by post id and post type
*
* @param int $post_id
* @param String $post_type
* @param int $limit
*
* @return array
*/
public function get_related_posts($post_id, $post_type, $limit = -1)
{
global $wpdb;
// Post Type Manager
$ptm = new RP4WP_Post_Type_Manager();
// Int y'all
$post_id = intval($post_id);
// Related post types
$related_post_types = $ptm->get_installed_post_type($post_type);
// Only continue of we've got > 1 related post type
if (0 === count($related_post_types)) {
return array();
}
// Format the related post types
$formatted_post_types = "( '" . implode("','", esc_sql($related_post_types)) . "' )";
// Get max post age
$max_post_age = 0;
if (isset(RP4WP::get()->settings['general_' . $post_type])) {
// set the correct options from step 3
$max_post_age = intval(RP4WP::get()->settings['general_' . $post_type]->get_option('max_post_age'));
}
// Build SQl
$sql = "\n\t\tSELECT R.`post_id` AS `ID`\n\t\tFROM `" . RP4WP_Related_Word_Manager::get_database_table() . "` O\n\t\tINNER JOIN `" . RP4WP_Related_Word_Manager::get_database_table() . "` R ON R.`word` = O.`word` ";
// only join post table when max post age is set
if ($max_post_age > 0) {
$sql .= "INNER JOIN `" . $wpdb->posts . "` P ON P.`ID` = R.`post_id`";
}
// add WHERE statements
$sql .= "\n\t\tWHERE 1=1\n\t\tAND O.`post_id` = %d\n\t\tAND R.`post_type` IN " . $formatted_post_types . "\n\t\tAND R.`post_id` != %d\n\t\t";
// get excluded ids
$excluded_ids = get_option(RP4WP_Constants::OPTION_EXCLUDED, '');
// check if there are excluded ids
if (false !== $excluded_ids && !empty($excluded_ids)) {
// add excluded where statement to query
$sql .= "AND R.`post_id` NOT IN (" . $excluded_ids . ")\n\t\t\t";
}
// check if we got a maximum post age for this post type
// check is max post age is > 0
if ($max_post_age > 0) {
// calculate date in past
$date_time_oldest = new DateTime();
$date_time_oldest = $date_time_oldest->modify('-' . $max_post_age . 'days');
// make the post age key filterable
$post_age_column = apply_filters('rp4wp_post_age_column', 'post_date');
// add to SQL
$sql .= "AND P.`" . $post_age_column . "` >= '" . $date_time_oldest->format('Y-m-d') . "'\n\t\t\t\t";
}
// add group by and order by to SQL
$sql .= "GROUP BY R.`post_id`\n\t\tORDER BY SUM( R.`weight` ) DESC\n\t\t";
// Check & Add Limit
if (-1 != $limit) {
$sql .= "\n\t\t\tLIMIT 0,%d";
// Prepare SQL
$sql = $wpdb->prepare($sql, $post_id, $post_id, $limit);
} else {
// Prepare SQL
$sql = $wpdb->prepare($sql, $post_id, $post_id);
}
// Allow filtering of SQL to find related posts
$sql = apply_filters('rp4wp_get_related_posts_sql', $sql, $post_id, $post_type, $limit);
// Get post from related cache
return $wpdb->get_results($sql);
}
/**
* Get placeholder image
*
* @param int $post_id
* @param string $post_type
*
* @return string
*/
public function get_placeholder_image($post_id, $post_type)
{
$thumbnail = '';
// get post
$post = get_post($post_id);
// get placeholder source
$placeholder = RP4WP::get()->settings['general_' . $post_type]->get_option('thumbnail_placeholder');
// check if placeholder is set
if (!empty($placeholder)) {
// set correct thumbnail
$thumbnail = sprintf('<img src="%s" class="attachment-thumbnail wp-post-image" alt="%s">', $placeholder, $post->post_title);
}
return $thumbnail;
}