$files->add()

Adds a single file or an entire second collection to the current collection

$files->add(\Kirby\Cms\Files|\Kirby\Cms\File|string $object): Kirby\Cms\Files

Parameters

Name	Type	Default
$object *	`Kirby\Cms\Files`\|`Kirby\Cms\File`\|`string`	–

This method modifies the existing $files object it is applied to and returns it again.

Type	Description
`Kirby\Exception\InvalidArgumentException`	When no `File` or `Files` object or an ID of an existing file is passed