silverstripe-framework/api/JSONDataFormatter.php

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<?php
class JSONDataFormatter extends DataFormatter {
/**
* @todo pass this from the API to the data formatter somehow
*/
static $api_base = "api/v1/";
protected $outputContentType = 'application/json';
public function supportedExtensions() {
return array(
'json',
'js'
);
}
public function supportedMimeTypes() {
return array(
'application/json',
'text/x-json'
);
}
/**
* Generate an XML representation of the given {@link DataObject}.
*
* @param DataObject $obj
* @param $includeHeader Include <?xml ...?> header (Default: true)
* @return String XML
*/
public function convertDataObject(DataObjectInterface $obj, $fields = null) {
$className = $obj->class;
$id = $obj->ID;
$json = "{\n className : \"$className\",\n";
foreach($this->getFieldsForObj($obj) as $fieldName => $fieldType) {
// Field filtering
if($fields && !in_array($fieldName, $fields)) continue;
$fieldValue = $obj->$fieldName;
if(is_object($fieldValue) && is_subclass_of($fieldValue, 'Object') && $fieldValue->hasMethod('toJSON')) {
$jsonParts[] = "$fieldName : " . $fieldValue->toJSON();
} else {
$jsonParts[] = "$fieldName : " . Convert::raw2json($fieldValue);
}
}
if($this->relationDepth > 0) {
foreach($obj->has_one() as $relName => $relClass) {
// Field filtering
if($fields && !in_array($relName, $fields)) continue;
$fieldName = $relName . 'ID';
if($obj->$fieldName) {
$href = Director::absoluteURL(self::$api_base . "$relClass/" . $obj->$fieldName);
} else {
$href = Director::absoluteURL(self::$api_base . "$className/$id/$relName");
}
$jsonParts[] = "$relName : { className : \"$relClass\", href : \"$href.json\", id : \"{$obj->$fieldName}\" }";
}
foreach($obj->has_many() as $relName => $relClass) {
// Field filtering
if($fields && !in_array($relName, $fields)) continue;
$jsonInnerParts = array();
$items = $obj->$relName();
foreach($items as $item) {
//$href = Director::absoluteURL(self::$api_base . "$className/$id/$relName/$item->ID");
$href = Director::absoluteURL(self::$api_base . "$relClass/$item->ID");
$jsonInnerParts[] = "{ className : \"$relClass\", href : \"$href.json\", id : \"{$obj->$fieldName}\" }";
}
$jsonParts[] = "$relName : [\n " . implode(",\n ", $jsonInnerParts) . " \n ]";
}
foreach($obj->many_many() as $relName => $relClass) {
// Field filtering
if($fields && !in_array($relName, $fields)) continue;
$jsonInnerParts = array();
$items = $obj->$relName();
foreach($items as $item) {
//$href = Director::absoluteURL(self::$api_base . "$className/$id/$relName/$item->ID");
$href = Director::absoluteURL(self::$api_base . "$relClass/$item->ID");
$jsonInnerParts[] = " { className : \"$relClass\", href : \"$href.json\", id : \"{$obj->$fieldName}\" }";
}
$jsonParts[] = "$relName : [\n " . implode(",\n ", $jsonInnerParts) . "\n ]";
}
}
return "{\n " . implode(",\n ", $jsonParts) . "\n}"; }
/**
* Generate an XML representation of the given {@link DataObjectSet}.
*
* @param DataObjectSet $set
* @return String XML
*/
public function convertDataObjectSet(DataObjectSet $set, $fields = null) {
$jsonParts = array();
foreach($set as $item) {
if($item->canView()) $jsonParts[] = $this->convertDataObject($item, $fields);
}
$json = "{\n";
$json .= 'totalSize: ';
$json .= (is_numeric($this->totalSize)) ? $this->totalSize : 'null';
$json .= ",\n";
$json .= "items: [\n" . implode(",\n", $jsonParts) . "\n]\n";
$json .= "}\n";
return $json;
}
public function convertStringToArray($strData) {
return Convert::json2array($strData);
}
}