/**
* Gets the list of extensions (if limited) for this field. Empty list
* means there is no restriction on allowed types.
*
* @return array
*/
protected function getAllowedExtensions()
{
$categories = $this->getAllowedCategories();
return File::get_category_extensions($categories);
}
/**
* Limit allowed file extensions by specifying categories of file types.
* These may be 'image', 'image/supported', 'audio', 'video', 'archive', 'flash', or 'document'
* See {@link File::$allowed_extensions} for details of allowed extensions
* for each of these categories
*
* @param string $category Category name
* @param string,... $categories Additional category names
* @return $this
*/
public function setAllowedFileCategories($category)
{
$extensions = File::get_category_extensions(func_get_args());
return $this->setAllowedExtensions($extensions);
}
public function testGetCategoryExtensions()
{
// Test specific categories
$images = array('alpha', 'als', 'bmp', 'cel', 'gif', 'ico', 'icon', 'jpeg', 'jpg', 'pcx', 'png', 'ps', 'tif', 'tiff');
$this->assertEquals($images, File::get_category_extensions('image'));
$this->assertEquals(array('gif', 'jpeg', 'jpg', 'png'), File::get_category_extensions('image/supported'));
$this->assertEquals($images, File::get_category_extensions(array('image', 'image/supported')));
$this->assertEquals(array('fla', 'gif', 'jpeg', 'jpg', 'png', 'swf'), File::get_category_extensions(array('flash', 'image/supported')));
// Test other categories have at least one item
$this->assertNotEmpty(File::get_category_extensions('archive'));
$this->assertNotEmpty(File::get_category_extensions('audio'));
$this->assertNotEmpty(File::get_category_extensions('document'));
$this->assertNotEmpty(File::get_category_extensions('flash'));
$this->assertNotEmpty(File::get_category_extensions('video'));
}