deleteDuplicateRows allows for null fields

Author: phpfui

src/PHPFUI/ORM/Migration.php

@@ -279,6 +279,8 @@ protected function alterColumn(string $table, string $field, string $parameters,
 
 	/**
 	 * Duplicate rows with the same key values will be deleted
+	 *
+	 * @param array<string> $keys
 	 */
 	protected function deleteDuplicateRows(string $table, array $keys) : bool
 		{
@@ -294,8 +296,16 @@ protected function deleteDuplicateRows(string $table, array $keys) : bool
 
 			foreach ($keys as $key)
 				{
-				$input[] = $row[$key];
-				$where .= "{$comma}`{$key}`=?";
+				// @phpstan-ignore-next-line
+				if (is_null($row[$key]))
+					{
+					$where .= "{$comma}`{$key}` is null";
+					}
+				else
+					{
+					$input[] = $row[$key];
+					$where .= "{$comma}`{$key}`=?";
+					}
 				$comma = ' and ';
 				}
 			$sql = "delete from `{$table}` where {$where} limit {$count}";