Added in network graph on about screen

app/Traits/UseMongo.php

@@ -45,7 +45,7 @@ trait UseMongo
 
 	/* METHODS */
 
-	public static function countGroupBy(string $field,array $where=[]): Collection
+	public static function countGroupBy(array $fields,array $where=[]): Collection
 	{
 		$query = collect();
 
@@ -64,9 +64,20 @@ trait UseMongo
 			]);
 		}
 
+		$gb = collect();
+		foreach ($fields as $field)
+			if (is_array($field)) {
+				foreach ($field as $k=>$v) {
+					$gb->put('datetime',['$dateToString'=>['format'=>$v,'date'=>'$'.$k]]);
+				}
+
+			} else {
+				$gb->put($field,'$'.$field);
+			}
+
 		$query->push([
 			'$group' => [
-				'_id' => [$field=>'$'.$field],
+				'_id' => $gb->toArray(),
 				'count' => ['$sum' => 1]
 			]
 		]);