148 lines
4.7 KiB
PHP
148 lines
4.7 KiB
PHP
<?php
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/**
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* Recent_Posts widget class
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*
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* @since 2.8.0
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* @package WordPress
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* @subpackage Widgets
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*/
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class WP_Widget_Recent_Posts extends WP_Widget {
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public function __construct() {
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$widget_ops = array('classname' => 'widget_recent_entries', 'description' => __( "Your site’s most recent Posts.") );
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parent::__construct('recent-posts', __('Recent Posts'), $widget_ops);
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$this->alt_option_name = 'widget_recent_entries';
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add_action( 'save_post', array($this, 'flush_widget_cache') );
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add_action( 'deleted_post', array($this, 'flush_widget_cache') );
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add_action( 'switch_theme', array($this, 'flush_widget_cache') );
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}
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/**
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* @param array $args
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* @param array $instance
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*/
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public function widget( $args, $instance ) {
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$cache = array();
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if ( ! $this->is_preview() ) {
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$cache = wp_cache_get( 'widget_recent_posts', 'widget' );
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}
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if ( ! is_array( $cache ) ) {
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$cache = array();
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}
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if ( ! isset( $args['widget_id'] ) ) {
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$args['widget_id'] = $this->id;
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}
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if ( isset( $cache[ $args['widget_id'] ] ) ) {
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echo $cache[ $args['widget_id'] ];
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return;
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}
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ob_start();
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$title = ( ! empty( $instance['title'] ) ) ? $instance['title'] : __( 'Recent Posts' );
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/** This filter is documented in wp-includes/widgets/class-wp-widget-pages.php */
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$title = apply_filters( 'widget_title', $title, $instance, $this->id_base );
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$number = ( ! empty( $instance['number'] ) ) ? absint( $instance['number'] ) : 5;
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if ( ! $number )
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$number = 5;
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$show_date = isset( $instance['show_date'] ) ? $instance['show_date'] : false;
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/**
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* Filter the arguments for the Recent Posts widget.
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*
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* @since 3.4.0
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*
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* @see WP_Query::get_posts()
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*
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* @param array $args An array of arguments used to retrieve the recent posts.
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*/
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$r = new WP_Query( apply_filters( 'widget_posts_args', array(
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'posts_per_page' => $number,
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'no_found_rows' => true,
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'post_status' => 'publish',
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'ignore_sticky_posts' => true
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) ) );
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if ($r->have_posts()) :
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?>
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<?php echo $args['before_widget']; ?>
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<?php if ( $title ) {
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echo $args['before_title'] . $title . $args['after_title'];
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} ?>
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<ul>
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<?php while ( $r->have_posts() ) : $r->the_post(); ?>
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<li>
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<a href="<?php the_permalink(); ?>"><?php get_the_title() ? the_title() : the_ID(); ?></a>
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<?php if ( $show_date ) : ?>
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<span class="post-date"><?php echo get_the_date(); ?></span>
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<?php endif; ?>
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</li>
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<?php endwhile; ?>
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</ul>
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<?php echo $args['after_widget']; ?>
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<?php
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// Reset the global $the_post as this query will have stomped on it
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wp_reset_postdata();
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endif;
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if ( ! $this->is_preview() ) {
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$cache[ $args['widget_id'] ] = ob_get_flush();
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wp_cache_set( 'widget_recent_posts', $cache, 'widget' );
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} else {
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ob_end_flush();
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}
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}
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/**
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* @param array $new_instance
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* @param array $old_instance
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* @return array
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*/
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public function update( $new_instance, $old_instance ) {
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$instance = $old_instance;
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$instance['title'] = sanitize_text_field( $new_instance['title'] );
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$instance['number'] = (int) $new_instance['number'];
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$instance['show_date'] = isset( $new_instance['show_date'] ) ? (bool) $new_instance['show_date'] : false;
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$this->flush_widget_cache();
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$alloptions = wp_cache_get( 'alloptions', 'options' );
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if ( isset($alloptions['widget_recent_entries']) )
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delete_option('widget_recent_entries');
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return $instance;
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}
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/**
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* @access public
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*/
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public function flush_widget_cache() {
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wp_cache_delete('widget_recent_posts', 'widget');
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}
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/**
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* @param array $instance
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*/
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public function form( $instance ) {
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$title = isset( $instance['title'] ) ? esc_attr( $instance['title'] ) : '';
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$number = isset( $instance['number'] ) ? absint( $instance['number'] ) : 5;
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$show_date = isset( $instance['show_date'] ) ? (bool) $instance['show_date'] : false;
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?>
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<p><label for="<?php echo $this->get_field_id( 'title' ); ?>"><?php _e( 'Title:' ); ?></label>
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<input class="widefat" id="<?php echo $this->get_field_id( 'title' ); ?>" name="<?php echo $this->get_field_name( 'title' ); ?>" type="text" value="<?php echo $title; ?>" /></p>
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<p><label for="<?php echo $this->get_field_id( 'number' ); ?>"><?php _e( 'Number of posts to show:' ); ?></label>
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<input id="<?php echo $this->get_field_id( 'number' ); ?>" name="<?php echo $this->get_field_name( 'number' ); ?>" type="text" value="<?php echo $number; ?>" size="3" /></p>
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<p><input class="checkbox" type="checkbox"<?php checked( $show_date ); ?> id="<?php echo $this->get_field_id( 'show_date' ); ?>" name="<?php echo $this->get_field_name( 'show_date' ); ?>" />
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<label for="<?php echo $this->get_field_id( 'show_date' ); ?>"><?php _e( 'Display post date?' ); ?></label></p>
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<?php
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}
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}
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