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Resource.php
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Resource.php
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<?php
class Resource {
/** The ID of this resource. */
public $id = null;
public $db = null;
// Construct the resource.
function __construct($params = null) {
$this->db = new MongoResource('resources', $params);
$this->set(array_merge($params, $this->mongoLoad()));
}
/** Generates a new uuid. */
private function generate_uuid() {
return sprintf('%04x%04x-%04x-%04x-%04x-%04x%04x%04x',
// 32 bits for "time_low"
mt_rand(0, 0xffff), mt_rand(0, 0xffff),
// 16 bits for "time_mid"
mt_rand(0, 0xffff),
// 16 bits for "time_hi_and_version",
// four most significant bits holds version number 4
mt_rand(0, 0x0fff) | 0x4000,
// 16 bits, 8 bits for "clk_seq_hi_res",
// 8 bits for "clk_seq_low",
// two most significant bits holds zero and one for variant DCE1.1
mt_rand(0, 0x3fff) | 0x8000,
// 48 bits for "node"
mt_rand(0, 0xffff), mt_rand(0, 0xffff), mt_rand(0, 0xffff)
);
}
/**
* Handles a request.
* @param type $request
* @return type
*/
public function handleRequest($request) {
switch ($request->method) {
case 'get':
return $this->load();
break;
case 'put':
case 'post':
return $this->save();
break;
case 'delete':
return $this->delete();
break;
}
// Return an error.
return new Response(406);
}
/** Get the values of this resource. */
public function get() {
return array(
'id' => $this->id
);
}
/** Set values within this object. */
public function set($params) {
$this->id = !empty($params['id']) ? $params['id'] : $this->generate_uuid();
}
/** Load values from the database */
public function load() {
return new Response(200, array_merge(
$this->mongoLoad(),
$this->get()
));
}
/** Save this resource to the database. */
public function save() {
if (($object = $this->get()) && $this->db->save($object)) {
return new Response(200, $object);
}
return new Response(406, 'An error occured while saving.');
}
/** Deletes a resource from the database. */
public function delete() {
return $this->db->delete() ? new Response(200) : new Response(406);
}
/** Loads a mongo object, and sanitizes it. */
private function mongoLoad() {
$object = $this->db->load();
unset($object['_id']);
return $object ? $object : array();
}
}