add exception for zoomed/custom timespaned favourite graphs

Author: xmacan

include/actions.php

@@ -76,6 +76,14 @@
 					WHERE user_id= ? AND fav_graph_id= ? AND fav_graph_timespan= ?',
 					array($_SESSION['sess_user_id'],get_request_var('graph_id'),$_SESSION['sess_current_timespan']));
 			} else { // add to fav
+				if ($_SESSION['sess_current_timespan'] == 0)	{
+					raise_message('custom_error',__('Cannot add zoomed or custom timespaned graph, changing timespan to Last half hour'));
+					$span = 1;
+				}
+				else	{
+					$span = $_SESSION['sess_current_timespan'];
+				}
+
 				$prio = db_fetch_cell_prepared('SELECT max(priority)+1
 					FROM plugin_intropage_panel_data
 					WHERE user_id = ?',
@@ -84,7 +92,7 @@
 				db_execute_prepared('REPLACE INTO plugin_intropage_panel_data
 					(user_id, panel_id, fav_graph_id, fav_graph_timespan, priority)
 					VALUES (?, "favourite_graph", ?, ?, ?)',
-					array($_SESSION['sess_user_id'],get_request_var('graph_id'),$_SESSION['sess_current_timespan'], $prio));
+					array($_SESSION['sess_user_id'],get_request_var('graph_id'), $span, $prio));
 
 				$id = db_fetch_insert_id();
 				db_execute_prepared('INSERT INTO plugin_intropage_panel_dashboard

include/functions.php

@@ -361,9 +361,13 @@ function intropage_graph_button($data) {
 		WHERE user_id= ?', array($_SESSION['sess_user_id'])) == 'on') {
 		$local_graph_id = $data[1]['local_graph_id'];
 
-		if (db_fetch_cell_prepared('SELECT COUNT(*) FROM plugin_intropage_panel_data
+
+		if ($_SESSION['sess_current_timespan'] == 0)	{	// zoom or custom timespan
+			$fav = '<i class="fa fa-eye-slash" title="' . __esc('Cannot add to Dashboard. Custom timespan.', 'intropage') . '"></i>';
+		}
+		else if (db_fetch_cell_prepared('SELECT COUNT(*) FROM plugin_intropage_panel_data
 			WHERE user_id= ? AND fav_graph_id= ? AND fav_graph_timespan= ?',
-			array($_SESSION['sess_user_id'],$local_graph_id,$_SESSION['sess_current_timespan'] )) > 0) {       // already fav
+			array($_SESSION['sess_user_id'],$local_graph_id,$_SESSION['sess_current_timespan'])) > 0) {       // already fav
 			$fav = '<i class="fa fa-eye-slash" title="' . __esc('Remove from Dashboard', 'intropage') . '"></i>';
 		} else {       // add to fav
 			$fav = '<i class="fa fa-eye" title="' . __esc('Add to Dashboard', 'intropage') . '"></i>';