fix #5638 @0:10

diff --git a/app/Http/Controllers/Admin/Operations/FluidbookPublication/LinksOperation.php b/app/Http/Controllers/Admin/Operations/FluidbookPublication/LinksOperation.php
index 8c6000e07725b29245c529370c79a89ce9b7af63..c497075af335ff9c3dd2eecc13e3a6bca194d6ac 100644 (file)
--- a/app/Http/Controllers/Admin/Operations/FluidbookPublication/LinksOperation.php
+++ b/app/Http/Controllers/Admin/Operations/FluidbookPublication/LinksOperation.php
@@ -88,12 +88,16 @@ trait LinksOperation
 
         $rlinks = array();
         foreach ($links as $k => $link) {
-            if (!$isOnePage && $link['page'] % 2 == 0 && $link['left'] > $width) {
+            $numericPage = is_numeric($link['page']);
+            if ($numericPage) {
+                $link['page'] = (int)$link['page'];
+            }
+            if ($numericPage && !$isOnePage && $link['page'] % 2 == 0 && $link['left'] > $width) {
                 $link['page']++;
                 $link['left'] -= $width;
             }
 
-            if ($link['page'] >= $from) {
+            if ($numericPage && $link['page'] >= $from) {
                 $link['page'] += $offset;
             }
             if ($internal && $link['type'] == 5) {
@@ -119,16 +123,20 @@ trait LinksOperation
 
         $rrulers = array();
         foreach ($rulers as $k => $ruler) {
-            if (!$isOnePage && $ruler['type'] == 'x' && $ruler['page'] % 2 == 0 && $ruler['pos'] > $width) {
+            $numericRuler = is_numeric($ruler['page']);
+            if ($numericRuler) {
+                $ruler['page'] = (int)$ruler['page'];
+            }
+            if ($numericRuler && !$isOnePage && $ruler['type'] == 'x' && $ruler['page'] % 2 == 0 && $ruler['pos'] > $width) {
                 $ruler['page']++;
                 $ruler['pos'] -= $width;
             }
 
-            if ($ruler['page'] > $from) {
+            if ($numericRuler && $ruler['page'] > $from) {
                 $ruler['page'] += $offset;
             }
 
-            if (!$isOnePage && $ruler['page'] % 2 == 1 && $ruler['type'] == 'x') {
+            if ($numericRuler && !$isOnePage && $ruler['page'] % 2 == 1 && $ruler['type'] == 'x') {
                 $ruler['page']--;
                 $ruler['pos'] += $width;
             }