Ticket #32264: 32264.3.patch

src/wp-includes/media.php

@@ -2918 +2918 @@
                 }
         }
 
-        $has_audio = $wpdb->get_var( "
-                SELECT ID
-                FROM $wpdb->posts
-                WHERE post_type = 'attachment'
-                AND post_mime_type LIKE 'audio%'
-                LIMIT 1
-        " );
-        $has_video = $wpdb->get_var( "
-                SELECT ID
-                FROM $wpdb->posts
-                WHERE post_type = 'attachment'
-                AND post_mime_type LIKE 'video%'
-                LIMIT 1
-        " );
-        $months = $wpdb->get_results( $wpdb->prepare( "
-                SELECT DISTINCT YEAR( post_date ) AS year, MONTH( post_date ) AS month
-                FROM $wpdb->posts
-                WHERE post_type = %s
-                ORDER BY post_date DESC
-        ", 'attachment' ) );
+        // Cache these expensive queries
+        if ( false === ( $has_audio = get_transient( 'has_audio' ) ) ) {
+                $has_audio = $wpdb->get_var( "
+                        SELECT ID
+                        FROM $wpdb->posts
+                        WHERE post_type = 'attachment'
+                        AND post_mime_type LIKE 'audio%'
+                        LIMIT 1
+                " );
+                $has_audio = $has_audio ? 1 : 0;
+                set_transient( 'has_audio', $has_audio );
+        }
+        if ( false === ( $has_video = get_transient( 'has_video' ) ) ) {
+                $has_video = $wpdb->get_var( "
+                        SELECT ID
+                        FROM $wpdb->posts
+                        WHERE post_type = 'attachment'
+                        AND post_mime_type LIKE 'video%'
+                        LIMIT 1
+                " );
+                $has_video = $has_video ? 1 : 0;
+                set_transient( 'has_video', $has_video );
+        }
+        if ( false === ( $months = get_transient( 'media_months' ) ) ) {
+                $months = $wpdb->get_results( $wpdb->prepare( "
+                        SELECT DISTINCT YEAR( post_date ) AS year, MONTH( post_date ) AS month
+                        FROM $wpdb->posts
+                        WHERE post_type = %s
+                        ORDER BY post_date DESC
+                ", 'attachment' ) );
+                set_transient( 'media_months', $months );
+        }
+
         foreach ( $months as $month_year ) {
                 $month_year->text = sprintf( __( '%1$s %2$d' ), $wp_locale->get_month( $month_year->month ), $month_year->year );
         }
@@ -2956 +2969 @@
                 ),
                 'defaultProps' => $props,
                 'attachmentCounts' => array(
-                        'audio' => ( $has_audio ) ? 1 : 0,
-                        'video' => ( $has_video ) ? 1 : 0
+                        'audio' => intval( $has_audio ),
+                        'video' => intval( $has_video )
                 ),
                 'embedExts'    => $exts,
                 'embedMimes'   => $ext_mimes,