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appwrite/src/Appwrite/Database/Adapter/MySQL.php

980 lines
31 KiB
PHP

<?php
namespace Appwrite\Database\Adapter;
use Appwrite\Database\Adapter;
use Appwrite\Database\Exception\Duplicate;
use Appwrite\Database\Validator\Authorization;
use Exception;
use PDO;
use Redis;
class MySQL extends Adapter
{
const DATA_TYPE_STRING = 'string';
const DATA_TYPE_INTEGER = 'integer';
const DATA_TYPE_FLOAT = 'float';
const DATA_TYPE_BOOLEAN = 'boolean';
const DATA_TYPE_OBJECT = 'object';
const DATA_TYPE_DICTIONARY = 'dictionary';
const DATA_TYPE_ARRAY = 'array';
const DATA_TYPE_NULL = 'null';
const OPTIONS_LIMIT_ATTRIBUTES = 1000;
/**
* Last modified.
*
* Read node with most recent changes
*
* @var int
*/
protected $lastModified = -1;
/**
* @var array
*/
protected $debug = [];
/**
* @var PDO
*/
protected $pdo;
/**
* @var Redis
*/
protected $redis;
/**
* Constructor.
*
* Set connection and settings
*
* @param PDO $pdo
* @param Redis $redis
*/
public function __construct($pdo, Redis $redis)
{
$this->pdo = $pdo;
$this->redis = $redis;
}
/**
* Get Document.
*
* @param string $id
*
* @return array
*
* @throws Exception
*/
public function getDocument($id)
{
// Get fields abstraction
$st = $this->getPDO()->prepare('SELECT * FROM `'.$this->getNamespace().'.database.documents` a
WHERE a.uid = :uid AND a.status = 0
ORDER BY a.updatedAt DESC LIMIT 10;
');
$st->bindValue(':uid', $id, PDO::PARAM_STR);
$st->execute();
$document = $st->fetch();
if (empty($document)) { // Not Found
return [];
}
// Get fields abstraction
$st = $this->getPDO()->prepare('SELECT * FROM `'.$this->getNamespace().'.database.properties` a
WHERE a.documentUid = :documentUid AND a.documentRevision = :documentRevision
ORDER BY `order`
');
$st->bindParam(':documentUid', $document['uid'], PDO::PARAM_STR, 32);
$st->bindParam(':documentRevision', $document['revision'], PDO::PARAM_STR, 32);
$st->execute();
$properties = $st->fetchAll();
$output = [
'$id' => null,
'$collection' => null,
'$permissions' => (!empty($document['permissions'])) ? \json_decode($document['permissions'], true) : [],
];
foreach ($properties as &$property) {
\settype($property['value'], $property['primitive']);
if ($property['array']) {
$output[$property['key']][] = $property['value'];
} else {
$output[$property['key']] = $property['value'];
}
}
// Get fields abstraction
$st = $this->getPDO()->prepare('SELECT * FROM `'.$this->getNamespace().'.database.relationships` a
WHERE a.start = :start AND revision = :revision
ORDER BY `order`
');
$st->bindParam(':start', $document['uid'], PDO::PARAM_STR, 32);
$st->bindParam(':revision', $document['revision'], PDO::PARAM_STR, 32);
$st->execute();
$output['temp-relations'] = $st->fetchAll();
return $output;
}
/**
* Create Document.
*
* @param array $data
*
* @throws \Exception
*
* @return array
*/
public function createDocument(array $data = [], array $unique = [])
{
$order = 0;
$data = \array_merge(['$id' => null, '$permissions' => []], $data); // Merge data with default params
$signature = \md5(\json_encode($data));
$revision = \uniqid('', true);
$data['$id'] = (empty($data['$id'])) ? null : $data['$id'];
/*
* When updating node, check if there are any changes to update
* by comparing data md5 signatures
*/
if (null !== $data['$id']) {
$st = $this->getPDO()->prepare('SELECT signature FROM `'.$this->getNamespace().'.database.documents` a
WHERE a.uid = :uid AND a.status = 0
ORDER BY a.updatedAt DESC LIMIT 1;
');
$st->bindValue(':uid', $data['$id'], PDO::PARAM_STR);
$st->execute();
$result = $st->fetch();
if ($result && isset($result['signature'])) {
$oldSignature = $result['signature'];
if ($signature === $oldSignature) {
return $data;
}
}
}
/**
* Check Unique Keys
*/
foreach ($unique as $key => $value) {
$st = $this->getPDO()->prepare('INSERT INTO `'.$this->getNamespace().'.database.unique`
SET `key` = :key;
');
$st->bindValue(':key', \md5($data['$collection'].':'.$key.'='.$value), PDO::PARAM_STR);
if (!$st->execute()) {
throw new Duplicate('Duplicated Property: '.$key.'='.$value);
}
}
// Add or update fields abstraction level
$st1 = $this->getPDO()->prepare('INSERT INTO `'.$this->getNamespace().'.database.documents`
SET uid = :uid, createdAt = :createdAt, updatedAt = :updatedAt, signature = :signature, revision = :revision, permissions = :permissions, status = 0
ON DUPLICATE KEY UPDATE uid = :uid, updatedAt = :updatedAt, signature = :signature, revision = :revision, permissions = :permissions;
');
// Adding fields properties
if (null === $data['$id'] || !isset($data['$id'])) { // Get new fields UID
$data['$id'] = $this->getId();
}
$st1->bindValue(':uid', $data['$id'], PDO::PARAM_STR);
$st1->bindValue(':revision', $revision, PDO::PARAM_STR);
$st1->bindValue(':signature', $signature, PDO::PARAM_STR);
$st1->bindValue(':createdAt', \date('Y-m-d H:i:s', \time()), PDO::PARAM_STR);
$st1->bindValue(':updatedAt', \date('Y-m-d H:i:s', \time()), PDO::PARAM_STR);
$st1->bindValue(':permissions', \json_encode($data['$permissions']), PDO::PARAM_STR);
$st1->execute();
// Delete old properties
$rms1 = $this->getPDO()->prepare('DELETE FROM `'.$this->getNamespace().'.database.properties` WHERE documentUid = :documentUid AND documentRevision != :documentRevision');
$rms1->bindValue(':documentUid', $data['$id'], PDO::PARAM_STR);
$rms1->bindValue(':documentRevision', $revision, PDO::PARAM_STR);
$rms1->execute();
// Delete old relationships
$rms2 = $this->getPDO()->prepare('DELETE FROM `'.$this->getNamespace().'.database.relationships` WHERE start = :start AND revision != :revision');
$rms2->bindValue(':start', $data['$id'], PDO::PARAM_STR);
$rms2->bindValue(':revision', $revision, PDO::PARAM_STR);
$rms2->execute();
// Create new properties
$st2 = $this->getPDO()->prepare('INSERT INTO `'.$this->getNamespace().'.database.properties`
(`documentUid`, `documentRevision`, `key`, `value`, `primitive`, `array`, `order`)
VALUES (:documentUid, :documentRevision, :key, :value, :primitive, :array, :order)');
$props = [];
foreach ($data as $key => $value) { // Prepare properties data
if (\in_array($key, ['$permissions'])) {
continue;
}
$type = $this->getDataType($value);
// Handle array of relations
if (self::DATA_TYPE_ARRAY === $type) {
if (!is_array($value)) { // Property should be of type array, if not = skip
continue;
}
foreach ($value as $i => $child) {
if (self::DATA_TYPE_DICTIONARY !== $this->getDataType($child)) { // not dictionary
$props[] = [
'type' => $this->getDataType($child),
'key' => $key,
'value' => $child,
'array' => true,
'order' => $order++,
];
continue;
}
$data[$key][$i] = $this->createDocument($child);
$this->createRelationship($revision, $data['$id'], $data[$key][$i]['$id'], $key, true, $i);
}
continue;
}
// Handle relation
if (self::DATA_TYPE_DICTIONARY === $type) {
$value = $this->createDocument($value);
$this->createRelationship($revision, $data['$id'], $value['$id'], $key); //xxx
continue;
}
// Handle empty values
if (self::DATA_TYPE_NULL === $type) {
continue;
}
$props[] = [
'type' => $type,
'key' => $key,
'value' => $value,
'array' => false,
'order' => $order++,
];
}
foreach ($props as $prop) {
if (\is_array($prop['value'])) {
throw new Exception('Value can\'t be an array: '.\json_encode($prop['value']));
}
if (\is_bool($prop['value'])) {
$prop['value'] = (int) $prop['value'];
}
$st2->bindValue(':documentUid', $data['$id'], PDO::PARAM_STR);
$st2->bindValue(':documentRevision', $revision, PDO::PARAM_STR);
$st2->bindValue(':key', $prop['key'], PDO::PARAM_STR);
$st2->bindValue(':value', $prop['value'], PDO::PARAM_STR);
$st2->bindValue(':primitive', $prop['type'], PDO::PARAM_STR);
$st2->bindValue(':array', $prop['array'], PDO::PARAM_BOOL);
$st2->bindValue(':order', $prop['order'], PDO::PARAM_STR);
$st2->execute();
}
//TODO remove this dependency (check if related to nested documents)
$this->getRedis()->expire($this->getNamespace().':document-'.$data['$id'], 0);
$this->getRedis()->expire($this->getNamespace().':document-'.$data['$id'], 0);
return $data;
}
/**
* Update Document.
*
* @param array $data
*
* @return array
*
* @throws Exception
*/
public function updateDocument(array $data = [])
{
return $this->createDocument($data);
}
/**
* Delete Document.
*
* @param string $id
*
* @return array
*
* @throws Exception
*/
public function deleteDocument(string $id)
{
$st1 = $this->getPDO()->prepare('DELETE FROM `'.$this->getNamespace().'.database.documents`
WHERE uid = :id
');
$st1->bindValue(':id', $id, PDO::PARAM_STR);
$st1->execute();
$st2 = $this->getPDO()->prepare('DELETE FROM `'.$this->getNamespace().'.database.properties`
WHERE documentUid = :id
');
$st2->bindValue(':id', $id, PDO::PARAM_STR);
$st2->execute();
$st3 = $this->getPDO()->prepare('DELETE FROM `'.$this->getNamespace().'.database.relationships`
WHERE start = :id OR end = :id
');
$st3->bindValue(':id', $id, PDO::PARAM_STR);
$st3->execute();
return [];
}
/**
* Delete Unique Key.
*
* @param string $key
*
* @return array
*
* @throws Exception
*/
public function deleteUniqueKey($key)
{
$st1 = $this->getPDO()->prepare('DELETE FROM `'.$this->getNamespace().'.database.unique` WHERE `key` = :key');
$st1->bindValue(':key', $key, PDO::PARAM_STR);
$st1->execute();
return [];
}
/**
* Add Unique Key.
*
* @param string $key
*
* @return array
*
* @throws Exception
*/
public function addUniqueKey($key)
{
$st = $this->getPDO()->prepare('INSERT INTO `'.$this->getNamespace().'.database.unique`
SET `key` = :key;
');
$st->bindValue(':key', $key, PDO::PARAM_STR);
if (!$st->execute()) {
throw new Duplicate('Duplicated Property: '.$key);
}
return [];
}
/**
* Create Relation.
*
* Adds a new relationship between different nodes
*
* @param string $revision
* @param int $start
* @param int $end
* @param string $key
* @param bool $isArray
* @param int $order
*
* @return array
*
* @throws Exception
*/
protected function createRelationship($revision, $start, $end, $key, $isArray = false, $order = 0)
{
$st2 = $this->getPDO()->prepare('INSERT INTO `'.$this->getNamespace().'.database.relationships`
(`revision`, `start`, `end`, `key`, `array`, `order`)
VALUES (:revision, :start, :end, :key, :array, :order)');
$st2->bindValue(':revision', $revision, PDO::PARAM_STR);
$st2->bindValue(':start', $start, PDO::PARAM_STR);
$st2->bindValue(':end', $end, PDO::PARAM_STR);
$st2->bindValue(':key', $key, PDO::PARAM_STR);
$st2->bindValue(':array', $isArray, PDO::PARAM_INT);
$st2->bindValue(':order', $order, PDO::PARAM_INT);
$st2->execute();
return [];
}
/**
* Create Namespace.
*
* @param $namespace
*
* @throws Exception
*
* @return bool
*/
public function createNamespace($namespace)
{
if (empty($namespace)) {
throw new Exception('Empty namespace');
}
$documents = 'app_'.$namespace.'.database.documents';
$properties = 'app_'.$namespace.'.database.properties';
$relationships = 'app_'.$namespace.'.database.relationships';
$unique = 'app_'.$namespace.'.database.unique';
$audit = 'app_'.$namespace.'.audit.audit';
$abuse = 'app_'.$namespace.'.abuse.abuse';
try {
$this->getPDO()->prepare('CREATE TABLE `'.$documents.'` LIKE `template.database.documents`;')->execute();
$this->getPDO()->prepare('CREATE TABLE `'.$properties.'` LIKE `template.database.properties`;')->execute();
$this->getPDO()->prepare('CREATE TABLE `'.$relationships.'` LIKE `template.database.relationships`;')->execute();
$this->getPDO()->prepare('CREATE TABLE `'.$unique.'` LIKE `template.database.unique`;')->execute();
$this->getPDO()->prepare('CREATE TABLE `'.$audit.'` LIKE `template.audit.audit`;')->execute();
$this->getPDO()->prepare('CREATE TABLE `'.$abuse.'` LIKE `template.abuse.abuse`;')->execute();
} catch (Exception $e) {
throw $e;
}
return true;
}
/**
* Delete Namespace.
*
* @param $namespace
*
* @throws Exception
*
* @return bool
*/
public function deleteNamespace($namespace)
{
if (empty($namespace)) {
throw new Exception('Empty namespace');
}
$unique = 'app_'.$namespace.'.database.unique';
$documents = 'app_'.$namespace.'.database.documents';
$properties = 'app_'.$namespace.'.database.properties';
$relationships = 'app_'.$namespace.'.database.relationships';
$audit = 'app_'.$namespace.'.audit.audit';
$abuse = 'app_'.$namespace.'.abuse.abuse';
try {
$this->getPDO()->prepare('DROP TABLE `'.$unique.'`;')->execute();
$this->getPDO()->prepare('DROP TABLE `'.$documents.'`;')->execute();
$this->getPDO()->prepare('DROP TABLE `'.$properties.'`;')->execute();
$this->getPDO()->prepare('DROP TABLE `'.$relationships.'`;')->execute();
$this->getPDO()->prepare('DROP TABLE `'.$audit.'`;')->execute();
$this->getPDO()->prepare('DROP TABLE `'.$abuse.'`;')->execute();
} catch (Exception $e) {
throw $e;
}
return true;
}
/**
* Get Collection.
*
* @param array $options
*
* @throws Exception
*
* @return array
*/
public function getCollection(array $options)
{
$start = \microtime(true);
$orderCastMap = [
'int' => 'UNSIGNED',
'string' => 'CHAR',
'date' => 'DATE',
'time' => 'TIME',
'datetime' => 'DATETIME',
];
$orderTypeMap = ['DESC', 'ASC'];
$options['orderField'] = (empty($options['orderField'])) ? '' : $options['orderField']; // Set default order field
$options['orderCast'] = (empty($options['orderCast'])) ? 'string' : $options['orderCast']; // Set default order field
if (!\array_key_exists($options['orderCast'], $orderCastMap)) {
throw new Exception('Invalid order cast');
}
if (!\in_array($options['orderType'], $orderTypeMap)) {
throw new Exception('Invalid order type');
}
$where = [];
$join = [];
$sorts = [];
$search = '';
// Filters
foreach ($options['filters'] as $i => $filter) {
$filter = $this->parseFilter($filter);
$key = $filter['key'];
$value = $filter['value'];
$operator = $filter['operator'];
$path = \explode('.', $key);
$original = $path;
if (1 < \count($path)) {
$key = \array_pop($path);
} else {
$path = [];
}
//$path = implode('.', $path);
$key = $this->getPDO()->quote($key, PDO::PARAM_STR);
$value = $this->getPDO()->quote($value, PDO::PARAM_STR);
//$path = $this->getPDO()->quote($path, PDO::PARAM_STR);
$options['offset'] = (int) $options['offset'];
$options['limit'] = (int) $options['limit'];
if (empty($path)) {
//if($path == "''") { // Handle direct attributes queries
$where[] = 'JOIN `'.$this->getNamespace().".database.properties` b{$i} ON a.uid IS NOT NULL AND b{$i}.documentUid = a.uid AND (b{$i}.key = {$key} AND b{$i}.value {$operator} {$value})";
} else { // Handle direct child attributes queries
$len = \count($original);
$prev = 'c'.$i;
foreach ($original as $y => $part) {
$part = $this->getPDO()->quote($part, PDO::PARAM_STR);
if (0 === $y) { // First key
$join[$i] = 'JOIN `'.$this->getNamespace().".database.relationships` c{$i} ON a.uid IS NOT NULL AND c{$i}.start = a.uid AND c{$i}.key = {$part}";
} elseif ($y == $len - 1) { // Last key
$join[$i] .= 'JOIN `'.$this->getNamespace().".database.properties` e{$i} ON e{$i}.documentUid = {$prev}.end AND e{$i}.key = {$part} AND e{$i}.value {$operator} {$value}";
} else {
$join[$i] .= 'JOIN `'.$this->getNamespace().".database.relationships` d{$i}{$y} ON d{$i}{$y}.start = {$prev}.end AND d{$i}{$y}.key = {$part}";
$prev = 'd'.$i.$y;
}
}
//$join[] = "JOIN `" . $this->getNamespace() . ".database.relationships` c{$i} ON a.uid IS NOT NULL AND c{$i}.start = a.uid AND c{$i}.key = {$path}
// JOIN `" . $this->getNamespace() . ".database.properties` d{$i} ON d{$i}.documentUid = c{$i}.end AND d{$i}.key = {$key} AND d{$i}.value {$operator} {$value}";
}
}
// Sorting
if(!empty($options['orderField'])) {
$orderPath = \explode('.', $options['orderField']);
$len = \count($orderPath);
$orderKey = 'order_b';
$part = $this->getPDO()->quote(\implode('', $orderPath), PDO::PARAM_STR);
$orderSelect = "CASE WHEN {$orderKey}.key = {$part} THEN CAST({$orderKey}.value AS {$orderCastMap[$options['orderCast']]}) END AS sort_ff";
if (1 === $len) {
//if($path == "''") { // Handle direct attributes queries
$sorts[] = 'LEFT JOIN `'.$this->getNamespace().".database.properties` order_b ON a.uid IS NOT NULL AND order_b.documentUid = a.uid AND (order_b.key = {$part})";
} else { // Handle direct child attributes queries
$prev = 'c';
$orderKey = 'order_e';
foreach ($orderPath as $y => $part) {
$part = $this->getPDO()->quote($part, PDO::PARAM_STR);
$x = $y - 1;
if (0 === $y) { // First key
$sorts[] = 'JOIN `'.$this->getNamespace().".database.relationships` order_c{$y} ON a.uid IS NOT NULL AND order_c{$y}.start = a.uid AND order_c{$y}.key = {$part}";
} elseif ($y == $len - 1) { // Last key
$sorts[] .= 'JOIN `'.$this->getNamespace().".database.properties` order_e ON order_e.documentUid = order_{$prev}{$x}.end AND order_e.key = {$part}";
} else {
$sorts[] .= 'JOIN `'.$this->getNamespace().".database.relationships` order_d{$y} ON order_d{$y}.start = order_{$prev}{$x}.end AND order_d{$y}.key = {$part}";
$prev = 'd';
}
}
}
}
else {
$orderSelect = 'a.uid AS sort_ff';
}
/*
* Workaround for a MySQL bug as reported here:
* https://bugs.mysql.com/bug.php?id=78485
*/
$options['search'] = ($options['search'] === '*') ? '' : $options['search'];
// Search
if (!empty($options['search'])) { // Handle free search
$where[] = 'LEFT JOIN `'.$this->getNamespace().".database.properties` b_search ON a.uid IS NOT NULL AND b_search.documentUid = a.uid AND b_search.primitive = 'string'
LEFT JOIN
`".$this->getNamespace().'.database.relationships` c_search ON c_search.start = b_search.documentUid
LEFT JOIN
`'.$this->getNamespace().".database.properties` d_search ON d_search.documentUid = c_search.end AND d_search.primitive = 'string'
\n";
$search = "AND (MATCH (b_search.value) AGAINST ({$this->getPDO()->quote($options['search'], PDO::PARAM_STR)} IN BOOLEAN MODE)
OR MATCH (d_search.value) AGAINST ({$this->getPDO()->quote($options['search'], PDO::PARAM_STR)} IN BOOLEAN MODE)
)";
}
$select = 'DISTINCT a.uid';
$where = \implode("\n", $where);
$join = \implode("\n", $join);
$sorts = \implode("\n", $sorts);
$range = "LIMIT {$options['offset']}, {$options['limit']}";
$roles = [];
foreach (Authorization::getRoles() as $role) {
$roles[] = 'JSON_CONTAINS(REPLACE(a.permissions, \'{self}\', a.uid), \'"'.$role.'"\', \'$.read\')';
}
if (false === Authorization::$status) { // FIXME temporary solution (hopefully)
$roles = ['1=1'];
}
$query = "SELECT %s, {$orderSelect}
FROM `".$this->getNamespace().".database.documents` a {$where}{$join}{$sorts}
WHERE status = 0
{$search}
AND (".\implode('||', $roles).")
ORDER BY sort_ff {$options['orderType']} %s";
$st = $this->getPDO()->prepare(\sprintf($query, $select, $range));
$st->execute();
$results = ['data' => []];
// Get entire fields data for each id
foreach ($st->fetchAll() as $node) {
$results['data'][] = $node['uid'];
}
$count = $this->getPDO()->prepare(\sprintf($query, 'count(DISTINCT a.uid) as sum', ''));
$count->execute();
$count = $count->fetch();
$this->resetDebug();
$this
->setDebug('query', \preg_replace('/\s+/', ' ', \sprintf($query, $select, $range)))
->setDebug('time', \microtime(true) - $start)
->setDebug('filters', \count($options['filters']))
->setDebug('joins', \substr_count($query, 'JOIN'))
->setDebug('count', \count($results['data']))
->setDebug('sum', (int) $count['sum'])
;
return $results['data'];
}
/**
* Get Collection.
*
* @param array $options
*
* @throws Exception
*
* @return int
*/
public function getCount(array $options)
{
$start = \microtime(true);
$where = [];
$join = [];
$options = array_merge([
'attribute' => '',
'filters' => [],
], $options);
// Filters
foreach ($options['filters'] as $i => $filter) {
$filter = $this->parseFilter($filter);
$key = $filter['key'];
$value = $filter['value'];
$operator = $filter['operator'];
$path = \explode('.', $key);
$original = $path;
if (1 < \count($path)) {
$key = \array_pop($path);
} else {
$path = [];
}
$key = $this->getPDO()->quote($key, PDO::PARAM_STR);
$value = $this->getPDO()->quote($value, PDO::PARAM_STR);
if (empty($path)) {
//if($path == "''") { // Handle direct attributes queries
$where[] = 'JOIN `'.$this->getNamespace().".database.properties` b{$i} ON a.uid IS NOT NULL AND b{$i}.documentUid = a.uid AND (b{$i}.key = {$key} AND b{$i}.value {$operator} {$value})";
} else { // Handle direct child attributes queries
$len = \count($original);
$prev = 'c'.$i;
foreach ($original as $y => $part) {
$part = $this->getPDO()->quote($part, PDO::PARAM_STR);
if (0 === $y) { // First key
$join[$i] = 'JOIN `'.$this->getNamespace().".database.relationships` c{$i} ON a.uid IS NOT NULL AND c{$i}.start = a.uid AND c{$i}.key = {$part}";
} elseif ($y == $len - 1) { // Last key
$join[$i] .= 'JOIN `'.$this->getNamespace().".database.properties` e{$i} ON e{$i}.documentUid = {$prev}.end AND e{$i}.key = {$part} AND e{$i}.value {$operator} {$value}";
} else {
$join[$i] .= 'JOIN `'.$this->getNamespace().".database.relationships` d{$i}{$y} ON d{$i}{$y}.start = {$prev}.end AND d{$i}{$y}.key = {$part}";
$prev = 'd'.$i.$y;
}
}
}
}
$where = \implode("\n", $where);
$join = \implode("\n", $join);
$attribute = $this->getPDO()->quote($options['attribute'], PDO::PARAM_STR);
$func = 'JOIN `'.$this->getNamespace().".database.properties` b_func ON a.uid IS NOT NULL
AND a.uid = b_func.documentUid
AND (b_func.key = {$attribute})";
$roles = [];
foreach (Authorization::getRoles() as $role) {
$roles[] = 'JSON_CONTAINS(REPLACE(a.permissions, \'{self}\', a.uid), \'"'.$role.'"\', \'$.read\')';
}
if (false === Authorization::$status) { // FIXME temporary solution (hopefully)
$roles = ['1=1'];
}
$query = "SELECT SUM(b_func.value) as result
FROM `".$this->getNamespace().".database.documents` a {$where}{$join}{$func}
WHERE status = 0
AND (".\implode('||', $roles).')';
$st = $this->getPDO()->prepare(\sprintf($query));
$st->execute();
$result = $st->fetch();
$this->resetDebug();
$this
->setDebug('query', \preg_replace('/\s+/', ' ', \sprintf($query)))
->setDebug('time', \microtime(true) - $start)
->setDebug('filters', \count($options['filters']))
->setDebug('joins', \substr_count($query, 'JOIN'))
;
return (isset($result['result'])) ? (int)$result['result'] : 0;
}
/**
* Get Unique Document ID.
*
* @return string
*/
public function getId(): string
{
$unique = \uniqid();
$attempts = 5;
for ($i = 1; $i <= $attempts; ++$i) {
$document = $this->getDocument($unique);
if (empty($document) || $document['$id'] !== $unique) {
return $unique;
}
}
throw new Exception('Failed to create a unique ID ('.$attempts.' attempts)');
}
/**
* Last Modified.
*
* Return Unix timestamp of last time a node queried in corrent session has been changed
*
* @return int
*/
public function lastModified()
{
return $this->lastModified;
}
/**
* Parse Filter.
*
* @param string $filter
*
* @return array
*
* @throws Exception
*/
protected function parseFilter($filter)
{
$operatorsMap = ['!=', '>=', '<=', '=', '>', '<']; // Do not edit order of this array
//FIXME bug with >= <= operators
$operator = null;
foreach ($operatorsMap as $node) {
if (\strpos($filter, $node) !== false) {
$operator = $node;
break;
}
}
if (empty($operator)) {
throw new Exception('Invalid operator');
}
$filter = \explode($operator, $filter);
if (\count($filter) != 2) {
throw new Exception('Invalid filter expression');
}
return [
'key' => $filter[0],
'value' => $filter[1],
'operator' => $operator,
];
}
/**
* Get Data Type.
*
* Check value data type. return value can be on of the following:
* string, integer, float, boolean, object, list or null
*
* @param $value
*
* @return string
*
* @throws \Exception
*/
protected function getDataType($value)
{
switch (\gettype($value)) {
case 'string':
return self::DATA_TYPE_STRING;
break;
case 'integer':
return self::DATA_TYPE_INTEGER;
break;
case 'double':
return self::DATA_TYPE_FLOAT;
break;
case 'boolean':
return self::DATA_TYPE_BOOLEAN;
break;
case 'array':
if ((bool) \count(\array_filter(\array_keys($value), 'is_string'))) {
return self::DATA_TYPE_DICTIONARY;
}
return self::DATA_TYPE_ARRAY;
break;
case 'NULL':
return self::DATA_TYPE_NULL;
break;
}
throw new Exception('Unknown data type: '.$value.' ('.\gettype($value).')');
}
/**
* @param string $key
* @param mixed $value
*
* @return $this
*/
public function setDebug(string $key, $value): self
{
$this->debug[$key] = $value;
return $this;
}
/**
* @return array
*/
public function getDebug(): array
{
return $this->debug;
}
/**
* return $this;.
*
* @return void
*/
public function resetDebug(): void
{
$this->debug = [];
}
/**
* @return PDO
*
* @throws Exception
*/
protected function getPDO()
{
return $this->pdo;
}
/**
* @throws Exception
*
* @return Redis
*/
protected function getRedis(): Redis
{
return $this->redis;
}
}