Improve upgrade routine, causing less queries

inc/class-comment-hacks.php

@@ -80,14 +80,31 @@ public function comment_redirect( $url, $comment ) {
 		return $url;
 	}
 
+	/**
+	 * See if the option has been cached, if it is, return it, otherwise return false.
+	 *
+	 * @param string $option The option to check for.
+	 *
+	 * @since 1.3
+	 *
+	 * @return bool|mixed
+	 */
+	private function get_option_from_cache( $option ) {
+		$options = wp_load_alloptions();
+		if ( isset( $options[ $option ] ) ) {
+			return $option;
+		}
+		return false;
+	}
+
 	/**
 	 * Check whether any old options are in there and if so upgrade them
 	 *
 	 * @since 1.0
 	 */
 	private function upgrade() {
 		foreach ( array( 'MinComLengthOptions', 'min_comment_length_option', 'CommentRedirect' ) as $old_option ) {
-			$old_option_values = get_option( $old_option );
+			$old_option_values = $this->get_option_from_cache( $old_option );
 			if ( is_array( $old_option_values ) ) {
 				if ( isset( $old_option_values['page'] ) ) {
 					$old_option_values['redirect_page'] = $old_option_values['page'];

readme.txt

@@ -58,6 +58,7 @@ See the screenshots to get an even better idea of the plugins functionality.
     * Remove `[...]` from pingback / trackback excerpt in cleaned emails as that's already included by core.
     * Replace link to ARIN with link to [ip-lookup.net](http://ip-lookup.net) for details about the IP.
     * Refactored code for readability and code quality.
+    * Refactor upgrade routine to do less DB queries.
 
 = 1.2 =