/**
* Returns a dataformatter instance based on the request
* extension or mimetype. Falls back to {@link self::$default_extension}.
*
* @param boolean $includeAcceptHeader Determines wether to inspect and prioritize any HTTP Accept headers
* @return DataFormatter
*/
protected function getDataFormatter($includeAcceptHeader = false)
{
$extension = $this->request->getExtension();
$contentTypeWithEncoding = $this->request->getHeader('Content-Type');
preg_match('/([^;]*)/', $contentTypeWithEncoding, $contentTypeMatches);
$contentType = $contentTypeMatches[0];
$accept = $this->request->getHeader('Accept');
$mimetypes = $this->request->getAcceptMimetypes();
// get formatter
if (!empty($extension)) {
$formatter = DataFormatter::for_extension($extension);
} elseif ($includeAcceptHeader && !empty($accept) && $accept != '*/*') {
$formatter = DataFormatter::for_mimetypes($mimetypes);
if (!$formatter) {
$formatter = DataFormatter::for_extension(self::$default_extension);
}
} elseif (!empty($contentType)) {
$formatter = DataFormatter::for_mimetype($contentType);
} else {
$formatter = DataFormatter::for_extension(self::$default_extension);
}
if (!$formatter) {
return false;
}
// set custom fields
if ($customAddFields = $this->request->getVar('add_fields')) {
$formatter->setCustomAddFields(explode(',', $customAddFields));
}
if ($customFields = $this->request->getVar('fields')) {
$formatter->setCustomFields(explode(',', $customFields));
}
$formatter->setCustomRelations($this->getAllowedRelations($this->urlParams['ClassName']));
$apiAccess = singleton($this->urlParams['ClassName'])->stat('api_access');
if (is_array($apiAccess)) {
$formatter->setCustomAddFields(array_intersect((array) $formatter->getCustomAddFields(), (array) $apiAccess['view']));
if ($formatter->getCustomFields()) {
$formatter->setCustomFields(array_intersect((array) $formatter->getCustomFields(), (array) $apiAccess['view']));
} else {
$formatter->setCustomFields((array) $apiAccess['view']);
}
if ($formatter->getCustomRelations()) {
$formatter->setCustomRelations(array_intersect((array) $formatter->getCustomRelations(), (array) $apiAccess['view']));
} else {
$formatter->setCustomRelations((array) $apiAccess['view']);
}
}
// set relation depth
$relationDepth = $this->request->getVar('relationdepth');
if (is_numeric($relationDepth)) {
$formatter->relationDepth = (int) $relationDepth;
}
return $formatter;
}
