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Postgres.php
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<?php
namespace Utopia\Database\Adapter;
use Exception;
use PDO;
use PDOException;
use Throwable;
use Utopia\Database\Database;
use Utopia\Database\Document;
use Utopia\Database\Exception as DatabaseException;
use Utopia\Database\Exception\Duplicate;
use Utopia\Database\Exception\Timeout;
use Utopia\Database\Query;
use Utopia\Database\Validator\Authorization;
class Postgres extends SQL
{
/**
* Differences between MariaDB and Postgres
*
* 1. Need to use CASCADE to DROP schema
* 2. Quotes are different ` vs "
* 3. DATETIME is TIMESTAMP
* 4. Full-text search is different - to_tsvector() and to_tsquery()
*/
/**
* Create Database
*
* @param string $name
*
* @return bool
*/
public function create(string $name): bool
{
$name = $this->filter($name);
return $this->getPDO()
->prepare("CREATE SCHEMA IF NOT EXISTS \"{$name}\"")
->execute();
}
/**
* Delete Database
*
* @param string $name
* @return bool
* @throws Exception
* @throws PDOException
*/
public function delete(string $name): bool
{
$name = $this->filter($name);
return $this->getPDO()
->prepare("DROP SCHEMA \"{$name}\" CASCADE;")
->execute();
}
/**
* Create Collection
*
* @param string $name
* @param array<Document> $attributes
* @param array<Document> $indexes
* @return bool
*/
public function createCollection(string $name, array $attributes = [], array $indexes = []): bool
{
$database = $this->getDefaultDatabase();
$namespace = $this->getNamespace();
$id = $this->filter($name);
$this->getPDO()->beginTransaction();
foreach ($attributes as &$attribute) {
$attrId = $this->filter($attribute->getId());
$attrType = $this->getSQLType($attribute->getAttribute('type'), $attribute->getAttribute('size', 0), $attribute->getAttribute('signed', true));
if ($attribute->getAttribute('array')) {
$attrType = 'TEXT';
}
$attribute = "\"{$attrId}\" {$attrType}, ";
}
/**
* @var array<string> $attributes
*/
$stmt = $this->getPDO()->prepare("
CREATE TABLE IF NOT EXISTS {$this->getSQLTable($id)} (
\"_id\" SERIAL NOT NULL,
\"_uid\" VARCHAR(255) NOT NULL,
\"_createdAt\" TIMESTAMP(3) DEFAULT NULL,
\"_updatedAt\" TIMESTAMP(3) DEFAULT NULL,
\"_permissions\" TEXT DEFAULT NULL,
" . \implode(' ', $attributes) . "
PRIMARY KEY (\"_id\")
);
");
$stmtIndex = $this->getPDO()->prepare("
CREATE UNIQUE INDEX \"{$namespace}_{$id}_uid\" on {$this->getSQLTable($id)} (LOWER(\"_uid\"));
CREATE INDEX \"{$namespace}_{$id}_created\" ON {$this->getSQLTable($id)} (\"_createdAt\");
CREATE INDEX \"{$namespace}_{$id}_updated\" ON {$this->getSQLTable($id)} (\"_updatedAt\");
");
try {
$stmt->execute();
$stmtIndex->execute();
$this->getPDO()
->prepare("CREATE TABLE IF NOT EXISTS {$this->getSQLTable($id . '_perms')} (
\"_id\" SERIAL NOT NULL,
\"_type\" VARCHAR(12) NOT NULL,
\"_permission\" VARCHAR(255) NOT NULL,
\"_document\" VARCHAR(255) NOT NULL,
PRIMARY KEY (\"_id\")
);
CREATE UNIQUE INDEX \"index_{$namespace}_{$id}_ukey\" ON {$this->getSQLTable($id. '_perms')} USING btree (\"_document\",\"_type\",\"_permission\");
CREATE INDEX \"index_{$namespace}_{$id}_permission\" ON {$this->getSQLTable($id. '_perms')} USING btree (\"_permission\",\"_type\",\"_document\");
")
->execute();
foreach ($indexes as $index) {
$indexId = $this->filter($index->getId());
$indexType = $index->getAttribute('type');
$indexAttributes = $index->getAttribute('attributes');
$indexOrders = $index->getAttribute('orders', []);
$this->createIndex(
$id,
$indexId,
$indexType,
$indexAttributes,
[],
$indexOrders
);
}
} catch (Exception $e) {
$this->getPDO()->rollBack();
throw new DatabaseException('Failed to create collection: ' . $e->getMessage());
}
if (!$this->getPDO()->commit()) {
throw new DatabaseException('Failed to commit transaction');
}
// Update $this->getIndexCount when adding another default index
return true;
}
/**
* Delete Collection
*
* @param string $id
* @return bool
*/
public function deleteCollection(string $id): bool
{
$id = $this->filter($id);
return $this->getPDO()
->prepare("DROP TABLE {$this->getSQLTable($id)}, {$this->getSQLTable($id . '_perms')};")
->execute();
}
/**
* Create Attribute
*
* @param string $collection
* @param string $id
* @param string $type
* @param int $size
* @param bool $array
*
* @return bool
*/
public function createAttribute(string $collection, string $id, string $type, int $size, bool $signed = true, bool $array = false): bool
{
$name = $this->filter($collection);
$id = $this->filter($id);
$type = $this->getSQLType($type, $size, $signed);
if ($array) {
$type = 'TEXT';
}
return $this->getPDO()
->prepare("ALTER TABLE {$this->getSQLTable($name)}
ADD COLUMN \"{$id}\" {$type};")
->execute();
}
/**
* Delete Attribute
*
* @param string $collection
* @param string $id
* @param bool $array
*
* @return bool
*/
public function deleteAttribute(string $collection, string $id, bool $array = false): bool
{
$name = $this->filter($collection);
$id = $this->filter($id);
return $this->getPDO()
->prepare("ALTER TABLE {$this->getSQLTable($name)}
DROP COLUMN \"{$id}\";")
->execute();
}
/**
* Rename Attribute
*
* @param string $collection
* @param string $old
* @param string $new
* @return bool
* @throws Exception
* @throws PDOException
*/
public function renameAttribute(string $collection, string $old, string $new): bool
{
$collection = $this->filter($collection);
$old = $this->filter($old);
$new = $this->filter($new);
return $this->getPDO()
->prepare("ALTER TABLE {$this->getSQLTable($collection)} RENAME COLUMN
\"{$old}\"
TO
\"{$new}\";")
->execute();
}
/**
* Update Attribute
*
* @param string $collection
* @param string $id
* @param string $type
* @param int $size
* @param bool $signed
* @param bool $array
* @return bool
* @throws Exception
* @throws PDOException
*/
public function updateAttribute(string $collection, string $id, string $type, int $size, bool $signed = true, bool $array = false): bool
{
$name = $this->filter($collection);
$id = $this->filter($id);
$type = $this->getSQLType($type, $size, $signed);
if ($array) {
$type = 'LONGTEXT';
}
if ($type == 'TIMESTAMP(3)') {
$type = "TIMESTAMP(3) without time zone USING TO_TIMESTAMP(\"$id\", 'YYYY-MM-DD HH24:MI:SS.MS')";
}
return $this->getPDO()
->prepare("ALTER TABLE {$this->getSQLTable($name)}
ALTER COLUMN \"{$id}\" TYPE {$type};")
->execute();
}
/**
* @param string $collection
* @param string $id
* @param string $type
* @param string $relatedCollection
* @param bool $twoWay
* @param string $twoWayKey
* @return bool
* @throws Exception
*/
public function createRelationship(
string $collection,
string $relatedCollection,
string $type,
bool $twoWay = false,
string $id = '',
string $twoWayKey = ''
): bool {
$name = $this->filter($collection);
$relatedName = $this->filter($relatedCollection);
$table = $this->getSQLTable($name);
$relatedTable = $this->getSQLTable($relatedName);
$id = $this->filter($id);
$twoWayKey = $this->filter($twoWayKey);
$sqlType = $this->getSQLType(Database::VAR_RELATIONSHIP, 0, false);
switch ($type) {
case Database::RELATION_ONE_TO_ONE:
$sql = "ALTER TABLE {$table} ADD COLUMN \"{$id}\" {$sqlType} DEFAULT NULL;";
if ($twoWay) {
$sql .= "ALTER TABLE {$relatedTable} ADD COLUMN \"{$twoWayKey}\" {$sqlType} DEFAULT NULL;";
}
break;
case Database::RELATION_ONE_TO_MANY:
$sql = "ALTER TABLE {$relatedTable} ADD COLUMN \"{$twoWayKey}\" {$sqlType} DEFAULT NULL;";
break;
case Database::RELATION_MANY_TO_ONE:
$sql = "ALTER TABLE {$table} ADD COLUMN \"{$id}\" {$sqlType} DEFAULT NULL;";
break;
case Database::RELATION_MANY_TO_MANY:
return true;
default:
throw new DatabaseException('Invalid relationship type');
}
return $this->getPDO()
->prepare($sql)
->execute();
}
/**
* @param string $collection
* @param string $relatedCollection
* @param string $type
* @param bool $twoWay
* @param string $key
* @param string $twoWayKey
* @param string|null $newKey
* @param string|null $newTwoWayKey
* @return bool
* @throws Exception
*/
public function updateRelationship(
string $collection,
string $relatedCollection,
string $type,
bool $twoWay,
string $key,
string $twoWayKey,
?string $newKey = null,
?string $newTwoWayKey = null,
): bool {
$name = $this->filter($collection);
$relatedName = $this->filter($relatedCollection);
$table = $this->getSQLTable($name);
$relatedTable = $this->getSQLTable($relatedName);
$key = $this->filter($key);
$twoWayKey = $this->filter($twoWayKey);
if (!\is_null($newKey)) {
$newKey = $this->filter($newKey);
}
if (!\is_null($newTwoWayKey)) {
$newTwoWayKey = $this->filter($newTwoWayKey);
}
$sql = '';
switch ($type) {
case Database::RELATION_ONE_TO_ONE:
if (!\is_null($newKey)) {
$sql = "ALTER TABLE {$table} RENAME COLUMN \"{$key}\" TO \"{$newKey}\";";
}
if ($twoWay && !\is_null($newTwoWayKey)) {
$sql .= "ALTER TABLE {$relatedTable} RENAME COLUMN \"{$twoWayKey}\" TO \"{$newTwoWayKey}\";";
}
break;
case Database::RELATION_MANY_TO_ONE:
if (!\is_null($newKey)) {
$sql = "ALTER TABLE {$table} RENAME COLUMN \"{$key}\" TO \"{$newKey}\";";
}
break;
case Database::RELATION_ONE_TO_MANY:
if ($twoWay && !\is_null($newTwoWayKey)) {
$sql = "ALTER TABLE {$relatedTable} RENAME COLUMN \"{$twoWayKey}\" TO \"{$newTwoWayKey}\";";
}
break;
case Database::RELATION_MANY_TO_MANY:
$collection = $this->getDocument(Database::METADATA, $collection);
$relatedCollection = $this->getDocument(Database::METADATA, $relatedCollection);
$junction = $this->getSQLTable('_' . $collection->getInternalId() . '_' . $relatedCollection->getInternalId());
if (!\is_null($newKey)) {
$sql = "ALTER TABLE {$junction} RENAME COLUMN \"{$key}\" TO \"{$newKey}\";";
}
if ($twoWay && !\is_null($newTwoWayKey)) {
$sql .= "ALTER TABLE {$junction} RENAME COLUMN \"{$twoWayKey}\" TO \"{$newTwoWayKey}\";";
}
break;
default:
throw new DatabaseException('Invalid relationship type');
}
if (empty($sql)) {
return true;
}
return $this->getPDO()
->prepare($sql)
->execute();
}
public function deleteRelationship(
string $collection,
string $relatedCollection,
string $type,
bool $twoWay,
string $key,
string $twoWayKey,
string $side
): bool {
$name = $this->filter($collection);
$relatedName = $this->filter($relatedCollection);
$table = $this->getSQLTable($name);
$relatedTable = $this->getSQLTable($relatedName);
$key = $this->filter($key);
switch ($type) {
case Database::RELATION_ONE_TO_ONE:
$sql = "ALTER TABLE {$table} DROP COLUMN \"{$key}\";";
if ($twoWay) {
$sql .= "ALTER TABLE {$relatedTable} DROP COLUMN \"{$twoWayKey}\";";
}
break;
case Database::RELATION_ONE_TO_MANY:
if ($side === Database::RELATION_SIDE_PARENT) {
$sql = "ALTER TABLE {$relatedTable} DROP COLUMN \"{$twoWayKey}\";";
} else {
$sql = "ALTER TABLE {$table} DROP COLUMN \"{$key}\";";
}
break;
case Database::RELATION_MANY_TO_ONE:
if ($side === Database::RELATION_SIDE_PARENT) {
$sql = "ALTER TABLE {$table} DROP COLUMN \"{$key}\";";
} else {
$sql = "ALTER TABLE {$relatedTable} DROP COLUMN \"{$twoWayKey}\";";
}
break;
case Database::RELATION_MANY_TO_MANY:
$collection = $this->getDocument(Database::METADATA, $collection);
$relatedCollection = $this->getDocument(Database::METADATA, $relatedCollection);
$junction = $side === Database::RELATION_SIDE_PARENT
? $this->getSQLTable('_' . $collection->getInternalId() . '_' . $relatedCollection->getInternalId())
: $this->getSQLTable('_' . $relatedCollection->getInternalId() . '_' . $collection->getInternalId());
$perms = $side === Database::RELATION_SIDE_PARENT
? $this->getSQLTable('_' . $collection->getInternalId() . '_' . $relatedCollection->getInternalId() . '_perms')
: $this->getSQLTable('_' . $relatedCollection->getInternalId() . '_' . $collection->getInternalId() . '_perms');
$sql = "DROP TABLE {$junction}; DROP TABLE {$perms}";
break;
default:
throw new DatabaseException('Invalid relationship type');
}
return $this->getPDO()
->prepare($sql)
->execute();
}
/**
* Create Index
*
* @param string $collection
* @param string $id
* @param string $type
* @param array<string> $attributes
* @param array<int> $lengths
* @param array<string> $orders
*
* @return bool
*/
public function createIndex(string $collection, string $id, string $type, array $attributes, array $lengths, array $orders): bool
{
$name = $this->filter($collection);
$id = $this->filter($id);
$attributes = \array_map(fn ($attribute) => match ($attribute) {
'$id' => '_uid',
'$createdAt' => '_createdAt',
'$updatedAt' => '_updatedAt',
default => $attribute
}, $attributes);
foreach ($attributes as $key => &$attribute) {
$length = $lengths[$key] ?? '';
$length = (empty($length)) ? '' : '(' . (int)$length . ')';
$order = $orders[$key] ?? '';
$attribute = $this->filter($attribute);
if (Database::INDEX_FULLTEXT === $type) {
$order = '';
}
if (Database::INDEX_UNIQUE === $type) {
$attribute = "LOWER(\"{$attribute}\"::text) {$order}";
} else {
$attribute = "\"{$attribute}\" {$order}";
}
}
return $this->getPDO()
->prepare($this->getSQLIndex($name, $id, $type, $attributes))
->execute();
}
/**
* Delete Index
*
* @param string $collection
* @param string $id
*
* @return bool
* @throws Exception
*/
public function deleteIndex(string $collection, string $id): bool
{
$name = $this->filter($collection);
$id = $this->filter($id);
$schemaName = $this->getDefaultDatabase();
return $this->getPDO()
->prepare("DROP INDEX IF EXISTS \"{$schemaName}\".{$id};")
->execute();
}
/**
* Rename Index
*
* @param string $collection
* @param string $old
* @param string $new
* @return bool
* @throws Exception
* @throws PDOException
*/
public function renameIndex(string $collection, string $old, string $new): bool
{
$collection = $this->filter($collection);
$namespace = $this->getNamespace();
$old = $this->filter($old);
$new = $this->filter($new);
$oldIndexName = $collection . "_" . $old;
$newIndexName = $namespace . $collection . "_" . $new;
return $this->getPDO()
->prepare("ALTER INDEX {$this->getSQLTable($oldIndexName)} RENAME TO \"{$newIndexName}\";")
->execute();
}
/**
* Create Document
*
* @param string $collection
* @param Document $document
*
* @return Document
*/
public function createDocument(string $collection, Document $document): Document
{
$attributes = $document->getAttributes();
$attributes['_createdAt'] = $document->getCreatedAt();
$attributes['_updatedAt'] = $document->getUpdatedAt();
$attributes['_permissions'] = json_encode($document->getPermissions());
$name = $this->filter($collection);
$columns = '';
$columnNames = '';
$this->getPDO()->beginTransaction();
/**
* Insert Attributes
*/
$bindIndex = 0;
foreach ($attributes as $attribute => $value) { // Parse statement
$column = $this->filter($attribute);
$bindKey = 'key_' . $bindIndex;
$columns .= "\"{$column}\", ";
$columnNames .= ':' . $bindKey . ', ';
$bindIndex++;
}
$stmt = $this->getPDO()
->prepare("INSERT INTO {$this->getSQLTable($name)}
({$columns}\"_uid\") VALUES ({$columnNames}:_uid) RETURNING _id;");
$stmt->bindValue(':_uid', $document->getId(), PDO::PARAM_STR);
$attributeIndex = 0;
foreach ($attributes as $attribute => $value) {
if (is_array($value)) { // arrays & objects should be saved as strings
$value = json_encode($value);
}
$bindKey = 'key_' . $attributeIndex;
$attribute = $this->filter($attribute);
$value = (is_bool($value)) ? ($value ? "true" : "false") : $value;
$stmt->bindValue(':' . $bindKey, $value, $this->getPDOType($value));
$attributeIndex++;
}
$permissions = [];
foreach (Database::PERMISSIONS as $type) {
foreach ($document->getPermissionsByType($type) as $permission) {
$permission = \str_replace('"', '', $permission);
$permissions[] = "('{$type}', '{$permission}', '{$document->getId()}')";
}
}
if (!empty($permissions)) {
$queryPermissions = "INSERT INTO {$this->getSQLTable($name . '_perms')}
(_type, _permission, _document) VALUES " . implode(', ', $permissions);
$stmtPermissions = $this->getPDO()->prepare($queryPermissions);
}
try {
$stmt->execute();
$document['$internalId'] = $stmt->fetch()["_id"];
if (isset($stmtPermissions)) {
$stmtPermissions->execute();
}
} catch (Throwable $e) {
switch ($e->getCode()) {
case 23505:
$this->getPDO()->rollBack();
throw new Duplicate('Duplicated document: ' . $e->getMessage());
default:
throw $e;
}
}
if (!$this->getPDO()->commit()) {
throw new DatabaseException('Failed to commit transaction');
}
return $document;
}
/**
* Update Document
*
* @param string $collection
* @param Document $document
*
* @return Document
*/
public function updateDocument(string $collection, Document $document): Document
{
$attributes = $document->getAttributes();
$attributes['_createdAt'] = $document->getCreatedAt();
$attributes['_updatedAt'] = $document->getUpdatedAt();
$attributes['_permissions'] = json_encode($document->getPermissions());
$name = $this->filter($collection);
$columns = '';
/**
* Get current permissions from the database
*/
$permissionsStmt = $this->getPDO()->prepare("
SELECT _type, _permission
FROM {$this->getSQLTable($name . '_perms')} p
WHERE p._document = :_uid
");
$permissionsStmt->bindValue(':_uid', $document->getId());
$permissionsStmt->execute();
$permissions = $permissionsStmt->fetchAll();
$initial = [];
foreach (Database::PERMISSIONS as $type) {
$initial[$type] = [];
}
$permissions = array_reduce($permissions, function (array $carry, array $item) {
$carry[$item['_type']][] = $item['_permission'];
return $carry;
}, $initial);
$this->getPDO()->beginTransaction();
/**
* Get removed Permissions
*/
$removals = [];
foreach (Database::PERMISSIONS as $type) {
$diff = \array_diff($permissions[$type], $document->getPermissionsByType($type));
if (!empty($diff)) {
$removals[$type] = $diff;
}
}
/**
* Get added Permissions
*/
$additions = [];
foreach (Database::PERMISSIONS as $type) {
$diff = \array_diff($document->getPermissionsByType($type), $permissions[$type]);
if (!empty($diff)) {
$additions[$type] = $diff;
}
}
/**
* Query to remove permissions
*/
$removeQuery = '';
if (!empty($removals)) {
$removeQuery = 'AND (';
foreach ($removals as $type => $permissions) {
$removeQuery .= "(
_type = '{$type}'
AND _permission IN (" . implode(', ', \array_map(fn (string $i) => ":_remove_{$type}_{$i}", \array_keys($permissions))) . ")
)";
if ($type !== \array_key_last($removals)) {
$removeQuery .= ' OR ';
}
}
}
if (!empty($removeQuery)) {
$removeQuery .= ')';
$stmtRemovePermissions = $this->getPDO()
->prepare("
DELETE
FROM {$this->getSQLTable($name . '_perms')}
WHERE
_document = :_uid
{$removeQuery}
");
$stmtRemovePermissions->bindValue(':_uid', $document->getId());
foreach ($removals as $type => $permissions) {
foreach ($permissions as $i => $permission) {
$stmtRemovePermissions->bindValue(":_remove_{$type}_{$i}", $permission);
}
}
}
/**
* Query to add permissions
*/
if (!empty($additions)) {
$values = [];
foreach ($additions as $type => $permissions) {
foreach ($permissions as $i => $_) {
$values[] = "( :_uid, '{$type}', :_add_{$type}_{$i} )";
}
}
$stmtAddPermissions = $this->getPDO()
->prepare(
"INSERT INTO {$this->getSQLTable($name . '_perms')}
(_document, _type, _permission) VALUES" . \implode(', ', $values)
);
$stmtAddPermissions->bindValue(":_uid", $document->getId());
foreach ($additions as $type => $permissions) {
foreach ($permissions as $i => $permission) {
$stmtAddPermissions->bindValue(":_add_{$type}_{$i}", $permission);
}
}
}
/**
* Update Attributes
*/
$bindIndex = 0;
foreach ($attributes as $attribute => $value) {
$column = $this->filter($attribute);
$bindKey = 'key_' . $bindIndex;
$columns .= "\"{$column}\"" . '=:' . $bindKey . ',';
$bindIndex++;
}
$stmt = $this->getPDO()
->prepare("UPDATE {$this->getSQLTable($name)}
SET {$columns} _uid = :_uid WHERE _uid = :_uid");
$stmt->bindValue(':_uid', $document->getId());
$attributeIndex = 0;
foreach ($attributes as $attribute => $value) {
if (is_array($value)) { // arrays & objects should be saved as strings
$value = json_encode($value);
}
$bindKey = 'key_' . $attributeIndex;
$attribute = $this->filter($attribute);
$value = (is_bool($value)) ? ($value == true ? "true" : "false") : $value;
$stmt->bindValue(':' . $bindKey, $value, $this->getPDOType($value));
$attributeIndex++;
}
try {
$stmt->execute();
if (isset($stmtRemovePermissions)) {
$stmtRemovePermissions->execute();
}
if (isset($stmtAddPermissions)) {
$stmtAddPermissions->execute();
}
} catch (PDOException $e) {
$this->getPDO()->rollBack();
switch ($e->getCode()) {
case 1062:
case 23505:
throw new Duplicate('Duplicated document: ' . $e->getMessage());
default:
throw $e;
}
}
if (!$this->getPDO()->commit()) {
throw new DatabaseException('Failed to commit transaction');
}
return $document;
}
/**
* Increase or decrease an attribute value
*
* @param string $collection
* @param string $id
* @param string $attribute
* @param int|float $value
* @param int|float|null $min
* @param int|float|null $max
* @return bool
* @throws Exception
*/
public function increaseDocumentAttribute(string $collection, string $id, string $attribute, int|float $value, int|float|null $min = null, int|float|null $max = null): bool
{
$name = $this->filter($collection);
$attribute = $this->filter($attribute);
$sqlMax = $max ? " AND \"{$attribute}\" <= {$max}" : "";
$sqlMin = $min ? " AND \"{$attribute}\" >= {$min}" : "";
$sql = "UPDATE {$this->getSQLTable($name)} SET \"{$attribute}\" = \"{$attribute}\" + :val WHERE _uid = :_uid" . $sqlMax . $sqlMin;
$stmt = $this->getPDO()->prepare($sql);
$stmt->bindValue(':_uid', $id);
$stmt->bindValue(':val', $value);
$stmt->execute() || throw new DatabaseException('Failed to update attribute');
return true;
}
/**
* Delete Document
*
* @param string $collection
* @param string $id
*
* @return bool
*/
public function deleteDocument(string $collection, string $id): bool
{
$name = $this->filter($collection);
$this->getPDO()->beginTransaction();
$stmt = $this->getPDO()
->prepare("DELETE FROM {$this->getSQLTable($name)} WHERE _uid = :_uid");
$stmt->bindValue(':_uid', $id, PDO::PARAM_STR);
$stmtPermissions = $this->getPDO()->prepare("DELETE FROM {$this->getSQLTable($name . '_perms')} WHERE _document = :_uid");
$stmtPermissions->bindValue(':_uid', $id);
try {
$stmt->execute() || throw new DatabaseException('Failed to delete document');
$stmtPermissions->execute() || throw new DatabaseException('Failed to clean permissions');
} catch (\Throwable $th) {
$this->getPDO()->rollBack();
throw new DatabaseException($th->getMessage());
}
if (!$this->getPDO()->commit()) {
throw new DatabaseException('Failed to commit transaction');
}
return true;
}
/**
* Find Documents
*
* Find data sets using chosen queries
*
* @param string $collection
* @param array<Query> $queries
* @param int|null $limit
* @param int|null $offset
* @param array<string> $orderAttributes
* @param array<string> $orderTypes
* @param array<string, mixed> $cursor
* @param string $cursorDirection
* @param int|null $timeout
*
* @return array<Document>
* @throws Exception
* @throws PDOException
* @throws Timeout
*/
public function find(string $collection, array $queries = [], ?int $limit = 25, ?int $offset = null, array $orderAttributes = [], array $orderTypes = [], array $cursor = [], string $cursorDirection = Database::CURSOR_AFTER, ?int $timeout = null): array
{
$name = $this->filter($collection);
$roles = Authorization::getRoles();
$where = [];
$orders = [];
$orderAttributes = \array_map(fn ($orderAttribute) => match ($orderAttribute) {
'$id' => '_uid',
'$createdAt' => '_createdAt',
'$updatedAt' => '_updatedAt',
default => $orderAttribute
}, $orderAttributes);
$hasIdAttribute = false;
foreach ($orderAttributes as $i => $attribute) {
if ($attribute === '_uid') {
$hasIdAttribute = true;
}
$attribute = $this->filter($attribute);
$orderType = $this->filter($orderTypes[$i] ?? Database::ORDER_ASC);
// Get most dominant/first order attribute
if ($i === 0 && !empty($cursor)) {
$orderMethodInternalId = Query::TYPE_GREATER; // To preserve natural order
$orderMethod = $orderType === Database::ORDER_DESC ? Query::TYPE_LESSER : Query::TYPE_GREATER;
if ($cursorDirection === Database::CURSOR_BEFORE) {
$orderType = $orderType === Database::ORDER_ASC ? Database::ORDER_DESC : Database::ORDER_ASC;
$orderMethodInternalId = $orderType === Database::ORDER_ASC ? Query::TYPE_LESSER : Query::TYPE_GREATER;
$orderMethod = $orderType === Database::ORDER_DESC ? Query::TYPE_LESSER : Query::TYPE_GREATER;
}
$where[] = "(
table_main.\"{$attribute}\" {$this->getSQLOperator($orderMethod)} :cursor
OR (
table_main.\"{$attribute}\" = :cursor
AND
table_main._id {$this->getSQLOperator($orderMethodInternalId)} {$cursor['$internalId']}
)
)";
} elseif ($cursorDirection === Database::CURSOR_BEFORE) {
$orderType = $orderType === Database::ORDER_ASC ? Database::ORDER_DESC : Database::ORDER_ASC;
}
$orders[] = '"' . $attribute . '" ' . $orderType;
}
// Allow after pagination without any order
if (empty($orderAttributes) && !empty($cursor)) {
$orderType = $orderTypes[0] ?? Database::ORDER_ASC;
$orderMethod = $cursorDirection === Database::CURSOR_AFTER ? (
$orderType === Database::ORDER_DESC ? Query::TYPE_LESSER : Query::TYPE_GREATER
) : (
$orderType === Database::ORDER_DESC ? Query::TYPE_GREATER : Query::TYPE_LESSER
);
$where[] = "( table_main._id {$this->getSQLOperator($orderMethod)} {$cursor['$internalId']} )";
}
// Allow order type without any order attribute, fallback to the natural order (_id)
if (!$hasIdAttribute) {
if (empty($orderAttributes) && !empty($orderTypes)) {
$order = $orderTypes[0] ?? Database::ORDER_ASC;
if ($cursorDirection === Database::CURSOR_BEFORE) {
$order = $order === Database::ORDER_ASC ? Database::ORDER_DESC : Database::ORDER_ASC;
}
$orders[] = 'table_main._id ' . $this->filter($order);
} else {
$orders[] = 'table_main._id ' . ($cursorDirection === Database::CURSOR_AFTER ? Database::ORDER_ASC : Database::ORDER_DESC); // Enforce last ORDER by '_id'
}
}
foreach ($queries as $query) {
if ($query->getMethod() === Query::TYPE_SELECT) {
continue;
}
$where[] = $this->getSQLCondition($query);
}
if (Authorization::$status) {