added GroupedSelection::refreshData()

Author: dg

src/Database/Table/GroupedSelection.php

@@ -83,6 +83,13 @@ public function order(string $columns, ...$params): static
 	}
 
 
+	public function refreshData(): void
+	{
+		unset($this->refCache['referencing'][$this->getGeneralCacheKey()][$this->getSpecificCacheKey()]);
+		$this->data = $this->rows = null;
+	}
+
+
 	/********************* aggregations ****************d*g**/
 
 

tests/Database/Explorer/GroupedSelection.insert().phpt

@@ -25,6 +25,10 @@ test('grouped selection insert increases count', function () use ($explorer) {
 	Assert::same(3, $book->related('book_tag')->count('*'));
 
 	$book->related('book_tag')->where('tag_id', 23)->delete();
+
+	Assert::same(3, $book->related('book_tag')->count());
+	$book->related('book_tag')->refreshData();
+	Assert::same(2, $book->related('book_tag')->count());
 });