<?php
add_action( 'widgets_init', 'add_widgets' );
function add_widgets() {
register_widget( 'modified_widget' );
}
class modified_widget extends WP_Widget {
function __construct() {
$widget_ops = array(
'classname' => 'modified_widget_class',
'description' => ''
);
parent::__construct( 'modified_widget', '投稿(更新順)', $widget_ops );
}
public function widget( $args, $instance ) {
if ( ! isset( $args['widget_id'] ) ) {
$args['widget_id'] = $this->id;
}
$title = ( ! empty( $instance['title'] ) ) ? $instance['title'] : __( 'Recent Posts' );
$title = apply_filters( 'widget_title', $title, $instance, $this->id_base );
$number = ( ! empty( $instance['number'] ) ) ? absint( $instance['number'] ) : 5;
if ( ! $number ) {
$number = 5;
}
$show_date = isset( $instance['show_date'] ) ? $instance['show_date'] : false;
$r = new WP_Query(
apply_filters(
'widget_posts_args',
array(
'posts_per_page' => $number,
'no_found_rows' => true,
'post_status' => 'publish',
'ignore_sticky_posts' => true,
'orderby' => 'modified',
),
$instance
)
);
if ( ! $r->have_posts() ) {
return;
}
?>
<?php echo $args['before_widget']; ?>
<?php
if ( $title ) {
echo $args['before_title'] . $title . $args['after_title'];
}
?>
<ul>
<?php foreach ( $r->posts as $recent_post ) : ?>
<?php
$post_title = get_the_title( $recent_post->ID );
$title = ( ! empty( $post_title ) ) ? $post_title : __( '(no title)' );
$aria_current = '';
if ( get_queried_object_id() === $recent_post->ID ) {
$aria_current = ' aria-current="page"';
}
?>
<li>
<a href="<?php the_permalink( $recent_post->ID ); ?>"<?php echo $aria_current; ?>><?php echo $title; ?></a>
<?php if ( $show_date ) : ?>
<span class="post-date"><br>
更新：<?php echo get_the_modified_date('Y-m-d',$recent_post->ID); ?>
/
投稿：<?php echo get_the_date('Y-m-d',$recent_post->ID); ?>
</span>
<?php endif; ?>
</li>
<?php endforeach; ?>
</ul>
<?php
echo $args['after_widget'];
}
public function update( $new_instance, $old_instance ) {
$instance = $old_instance;
$instance['title'] = sanitize_text_field( $new_instance['title'] );
$instance['number'] = (int) $new_instance['number'];
$instance['show_date'] = isset( $new_instance['show_date'] ) ? (bool) $new_instance['show_date'] : false;
return $instance;
}
public function form( $instance ) {
$title = isset( $instance['title'] ) ? esc_attr( $instance['title'] ) : '';
$number = isset( $instance['number'] ) ? absint( $instance['number'] ) : 5;
$show_date = isset( $instance['show_date'] ) ? (bool) $instance['show_date'] : false;
?>
<p><label for="<?php echo $this->get_field_id( 'title' ); ?>"><?php _e( 'Title:' ); ?></label>
<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>
<p><label for="<?php echo $this->get_field_id( 'number' ); ?>"><?php _e( 'Number of posts to show:' ); ?></label>
<input class="tiny-text" id="<?php echo $this->get_field_id( 'number' ); ?>" name="<?php echo $this->get_field_name( 'number' ); ?>" type="number" step="1" min="1" value="<?php echo $number; ?>" size="3" /></p>
<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' ); ?>" />
<label for="<?php echo $this->get_field_id( 'show_date' ); ?>"><?php _e( 'Display post date?' ); ?></label></p>
<?php
}
}