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<?php
/**
* PDO CardDAV backend
*
* @package Sabre
* @subpackage CardDAV
* @copyright Copyright (C) 2007-2011 Rooftop Solutions. All rights reserved.
* @author Evert Pot (http://www.rooftopsolutions.nl/)
* @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
*/
/**
* This CardDAV backend uses PDO to store addressbooks
*/
class Sabre_CardDAV_Backend_PDO extends Sabre_CardDAV_Backend_Abstract {
/**
* PDO connection
*
* @var PDO
*/
protected $pdo;
/**
* The PDO table name used to store addressbooks
*/
protected $addressBooksTableName;
/**
* The PDO table name used to store cards
*/
protected $cardsTableName;
/**
* Sets up the object
*
* @param PDO $pdo
*/
public function __construct(PDO $pdo, $addressBooksTableName = 'addressbooks', $cardsTableName = 'cards') {
$this->pdo = $pdo;
$this->addressBooksTableName = $addressBooksTableName;
$this->cardsTableName = $cardsTableName;
}
/**
* Returns the list of addressbooks for a specific user.
*
* @param string $principalUri
* @return array
*/
public function getAddressBooksForUser($principalUri) {
$stmt = $this->pdo->prepare('SELECT id, uri, displayname, principaluri, description, ctag FROM `'.$this->addressBooksTableName.'` WHERE principaluri = ?');
$result = $stmt->execute(array($principalUri));
$addressBooks = array();
foreach($stmt->fetchAll() as $row) {
$addressBooks[] = array(
'id' => $row['id'],
'uri' => $row['uri'],
'principaluri' => $row['principaluri'],
'{DAV:}displayname' => $row['displayname'],
'{' . Sabre_CardDAV_Plugin::NS_CARDDAV . '}addressbook-description' => $row['description'],
'{http://calendarserver.org/ns/}getctag' => $row['ctag'],
);
}
return $addressBooks;
}
/**
* Updates an addressbook's properties
*
* See Sabre_DAV_IProperties for a description of the mutations array, as
* well as the return value.
*
* @param mixed $addressBookId
* @param array $mutations
* @see Sabre_DAV_IProperties::updateProperties
* @return bool|array
*/
public function updateAddressBook($addressBookId, array $mutations) {
$updates = array();
foreach($mutations as $property=>$newValue) {
switch($property) {
case '{DAV:}displayname' :
$updates['displayname'] = $newValue;
break;
case '{' . Sabre_CardDAV_Plugin::NS_CARDDAV . '}addressbook-description' :
$updates['description'] = $newValue;
break;
default :
// If any unsupported values were being updated, we must
// let the entire request fail.
return false;
}
}
// No values are being updated?
if (!$updates) {
return false;
}
$query = 'UPDATE `' . $this->addressBooksTableName . '` SET ctag = ctag + 1 ';
foreach($updates as $key=>$value) {
$query.=', `' . $key . '` = :' . $key . ' ';
}
$query.=' WHERE id = :addressbookid';
$stmt = $this->pdo->prepare($query);
$updates['addressbookid'] = $addressBookId;
$stmt->execute($updates);
return true;
}
/**
* Creates a new address book
*
* @param string $principalUri
* @param string $url Just the 'basename' of the url.
* @param array $properties
* @return void
*/
public function createAddressBook($principalUri, $url, array $properties) {
$values = array(
'displayname' => null,
'description' => null,
'principaluri' => $principalUri,
'uri' => $url,
);
foreach($properties as $property=>$newValue) {
switch($property) {
case '{DAV:}displayname' :
$values['displayname'] = $newValue;
break;
case '{' . Sabre_CardDAV_Plugin::NS_CARDDAV . '}addressbook-description' :
$values['description'] = $newValue;
break;
default :
throw new Sabre_DAV_Exception_BadRequest('Unknown property: ' . $property);
}
}
$query = 'INSERT INTO `' . $this->addressBooksTableName . '` (uri, displayname, description, principaluri, ctag) VALUES (:uri, :displayname, :description, :principaluri, 1)';
$stmt = $this->pdo->prepare($query);
$stmt->execute($values);
}
/**
* Deletes an entire addressbook and all its contents
*
* @param int $addressBookId
* @return void
*/
public function deleteAddressBook($addressBookId) {
$stmt = $this->pdo->prepare('DELETE FROM `' . $this->cardsTableName . '` WHERE addressbookid = ?');
$stmt->execute(array($addressBookId));
$stmt = $this->pdo->prepare('DELETE FROM `' . $this->addressBooksTableName . '` WHERE id = ?');
$stmt->execute(array($addressBookId));
}
/**
* Returns all cards for a specific addressbook id.
*
* @param mixed $addressbookId
* @return array
*/
public function getCards($addressbookId) {
$stmt = $this->pdo->prepare('SELECT id, carddata, uri, lastmodified FROM `' . $this->cardsTableName . '` WHERE addressbookid = ?');
$stmt->execute(array($addressbookId));
return $stmt->fetchAll(PDO::FETCH_ASSOC);
}
/**
* Returns a specfic card
*
* @param mixed $addressBookId
* @param string $cardUri
* @return array
*/
public function getCard($addressBookId, $cardUri) {
$stmt = $this->pdo->prepare('SELECT id, carddata, uri, lastmodified FROM `' . $this->cardsTableName . '` WHERE addressbookid = ? AND uri = ? LIMIT 1');
$stmt->execute(array($addressBookId, $cardUri));
$result = $stmt->fetchAll(PDO::FETCH_ASSOC);
return (count($result)>0?$result[0]:false);
}
/**
* Creates a new card
*
* @param mixed $addressBookId
* @param string $cardUri
* @param string $cardData
* @return bool
*/
public function createCard($addressBookId, $cardUri, $cardData) {
$stmt = $this->pdo->prepare('INSERT INTO `' . $this->cardsTableName . '` (carddata, uri, lastmodified, addressbookid) VALUES (?, ?, ?, ?)');
$result = $stmt->execute(array($cardData, $cardUri, time(), $addressBookId));
$stmt2 = $this->pdo->prepare('UPDATE `' . $this->addressBooksTableName . '` SET ctag = ctag + 1 WHERE id = ?');
$stmt2->execute(array($addressBookId));
return $result;
}
/**
* Updates a card
*
* @param mixed $addressBookId
* @param string $cardUri
* @param string $cardData
* @return bool
*/
public function updateCard($addressBookId, $cardUri, $cardData) {
$stmt = $this->pdo->prepare('UPDATE `' . $this->cardsTableName . '` SET carddata = ?, lastmodified = ? WHERE uri = ? AND addressbookid =?');
$result = $stmt->execute(array($cardData, time(), $cardUri, $addressBookId));
$stmt2 = $this->pdo->prepare('UPDATE `' . $this->addressBooksTableName . '` SET ctag = ctag + 1 WHERE id = ?');
$stmt2->execute(array($addressBookId));
return $stmt->rowCount()===1;
}
/**
* Deletes a card
*
* @param mixed $addressBookId
* @param string $cardUri
* @return bool
*/
public function deleteCard($addressBookId, $cardUri) {
$stmt = $this->pdo->prepare('DELETE FROM `' . $this->cardsTableName . '` WHERE addressbookid = ? AND uri = ?');
$stmt->execute(array($addressBookId, $cardUri));
$stmt2 = $this->pdo->prepare('UPDATE `' . $this->addressBooksTableName . '` SET ctag = ctag + 1 WHERE id = ?');
$stmt2->execute(array($addressBookId));
return $stmt->rowCount()===1;
}
}
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