updated getPagination method on MsGraph.php

Author: dcblogdev

changelog.md

@@ -233,4 +233,41 @@ MsGraphAdmin::events()->userid($userId)->find($eventId);
 MsGraphAdmin::events()->userid($userId)->store($data);
 MsGraphAdmin::events()->userid($userId)->update($data);
 MsGraphAdmin::events()->userid($userId)->delete($data);
+```
+
+### 3.1.0
+
+Changed getPagination() to return array containing only previous and next page numbers.
+
+This method needs the data but also the total number of records, the limit ($top) and the offset ($skip)
+
+```php 
+$limit = 5;
+$skip  = request('next', 0);
+
+$messageQueryParams = [
+	"\$orderby" => "displayName",
+	"\$count"   => "true",
+	"\$skip"    => $skip,
+	"\$top"     => $limit,
+];
+
+$contacts = MsGraph::get('me/contacts?'.http_build_query($messageQueryParams));
+$total    = $contacts['@odata.count'] ?? 0;
+
+$response = MsGraph::getPagination($contacts, $total, $limit, $skip);
+$previous = $response['previous'];
+$next     = $response['next'];
+```
+
+The in a view the previous and next links can be displayed:
+
+```php 
+@if (request('next') > 0)
+	<a href='{{ url()->current().'?next='.$previous }}'>Previous Page</a>
+@endif
+
+@if ($next != 0)
+	<a href='{{ url()->current().'?next='.$next }}'>Next Page</a>
+@endif
 ```

src/MsGraph.php

@@ -291,34 +291,46 @@ protected function guzzle($type, $request, $data = [], $headers = [], $id = null
     }
 
     /**
-     * return array containing total, top and skip params
+     * return array containing previous and next page counts
      * @param  $data array
-     * @param  $top  integer
+     * @param  $total array
+     * @param  $limit  integer
      * @param  $skip integer
      * @return array
      */
-    public function getPagination($data, $top, $skip)
+    public function getPagination(array $data, int $total, int $limit, int $skip)
     {
-        if (! is_array($data))
-        {
-            dd($data);
-        }
-
-        $total = isset($data['@odata.count']) ? $data['@odata.count'] : 0;
+        $previous = 0;
+        $next     = 0;
 
         if (isset($data['@odata.nextLink'])) {
+            $parts = explode('skip=', $data['@odata.nextLink']);
+
+            if (isset($parts[1])) {
+                $previous = $parts[1] - $limit;
+                $next     = $parts[1];
+            }
+
+            if ($previous < 0) {
+                $previous = 0;
+            }
 
-            $parts = parse_url($data['@odata.nextLink']);
-            parse_str($parts['query'], $query);
+            if ($next == $total) {
+                $next = 0;
+            }
+        }
+
+        if ($total > $limit) {
+            $previous = $skip - $limit;
+        }
 
-            $top = isset($query['$top']) ? $query['$top'] : 0;
-            $skip = isset($query['$skip']) ? $query['$skip'] : 0;
+        if ($previous < 0) {
+            $previous = 0;
         }
 
         return [
-            'total' => $total,
-            'top' => $top,
-            'skip' => $skip
+            'previous' => $previous,
+            'next' => $next
         ];
     }
 }