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<?php |
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/** |
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* Archives shortcode |
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* |
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* @author bubel & nickmomrik |
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* [archives limit=10] |
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* |
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* @package automattic/jetpack |
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*/ |
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|
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if ( ! defined( 'ABSPATH' ) ) { |
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exit( 0 ); |
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} |
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|
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add_shortcode( 'archives', 'archives_shortcode' ); |
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|
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/** |
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* Display Archives shortcode. |
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* |
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* @param array $atts Shortcode attributes. |
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*/ |
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function archives_shortcode( $atts ) { |
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if ( is_feed() ) { |
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return '[archives]'; |
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} |
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|
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global $allowedposttags; |
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|
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$default_atts = array( |
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'type' => 'postbypost', |
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'limit' => '', |
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'format' => 'html', |
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'showcount' => false, |
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'before' => '', |
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'after' => '', |
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'order' => 'desc', |
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); |
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|
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$attr = shortcode_atts( $default_atts, $atts, 'archives' ); |
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|
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if ( ! in_array( $attr['type'], array( 'yearly', 'monthly', 'daily', 'weekly', 'postbypost' ), true ) ) { |
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$attr['type'] = 'postbypost'; |
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} |
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|
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if ( ! in_array( $attr['format'], array( 'html', 'option', 'custom' ), true ) ) { |
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$attr['format'] = 'html'; |
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} |
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|
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$limit = (int) $attr['limit']; |
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// A Limit of 0 makes no sense so revert back to the default. |
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if ( empty( $limit ) ) { |
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$limit = ''; |
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} |
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|
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/* |
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* The `postbypost` type (also the default) lists one entry per published |
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* post. Left unbounded, wp_get_archives() materializes the entire post table |
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* in a single request, which can exhaust PHP memory and fatal on large sites. |
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* Apply a sane, filterable default cap when no explicit limit was supplied. |
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*/ |
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if ( 'postbypost' === $attr['type'] && '' === $limit ) { |
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/** |
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* Filter the default number of entries listed by the [archives] shortcode |
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* when using the unbounded `postbypost` type with no explicit `limit`. |
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* |
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* Set to 0 to restore the previous (unlimited) behavior, though this is |
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* not recommended on sites with a large number of posts. |
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* |
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* @module shortcodes |
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* |
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* @since 16.0 |
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* |
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* @param int $limit Default maximum number of posts to list. Default 100. |
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*/ |
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$default_limit = (int) apply_filters( 'jetpack_archives_shortcode_default_limit', 100 ); |
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|
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if ( $default_limit > 0 ) { |
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$limit = $default_limit; |
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} |
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} |
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|
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$showcount = false !== $attr['showcount'] && 'false' !== $attr['showcount']; |
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$before = wp_kses( $attr['before'], $allowedposttags ); |
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$after = wp_kses( $attr['after'], $allowedposttags ); |
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|
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// Get the archives. |
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$archives = wp_get_archives( |
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array( |
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'type' => $attr['type'], |
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'limit' => $limit, |
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'format' => $attr['format'], |
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'echo' => false, |
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'show_post_count' => $showcount, |
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'before' => $before, |
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'after' => $after, |
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) |
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); |
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|
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if ( 'asc' === $attr['order'] ) { |
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$archives = implode( "\n", array_reverse( explode( "\n", $archives ) ) ); |
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} |
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|
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// Check to see if there are any archives. |
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if ( empty( $archives ) ) { |
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$archives = '<p>' . __( 'Your blog does not currently have any published posts.', 'jetpack' ) . '</p>'; |
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} elseif ( 'option' === $attr['format'] ) { |
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$is_amp = class_exists( 'Jetpack_AMP_Support' ) && Jetpack_AMP_Support::is_amp_request(); |
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$change_attribute = $is_amp ? 'on="change:AMP.navigateTo(url=event.value)"' : 'onchange="document.location.href=this.options[this.selectedIndex].value;"'; |
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$archives = '<select name="archive-dropdown" ' . $change_attribute . '><option value="' . get_permalink() . '">--</option>' . $archives . '</select>'; |
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} elseif ( 'html' === $attr['format'] ) { |
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$archives = '<ul>' . $archives . '</ul>'; |
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} |
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|
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return $archives; |
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} |
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|
