520 lines
16 KiB
PHP
520 lines
16 KiB
PHP
<?php
|
|
|
|
namespace Core\Driver\SQL;
|
|
|
|
use Core\API\Parameter\Parameter;
|
|
|
|
use Core\Driver\Logger\Logger;
|
|
use Core\Driver\SQL\Condition\Compare;
|
|
use Core\Driver\SQL\Condition\CondLike;
|
|
use Core\Driver\SQL\Expression\Count;
|
|
use DateTime;
|
|
use Core\Driver\SQL\Column\Column;
|
|
use Core\Driver\SQL\Column\IntColumn;
|
|
use Core\Driver\SQL\Column\NumericColumn;
|
|
use Core\Driver\SQL\Column\SerialColumn;
|
|
use Core\Driver\SQL\Column\StringColumn;
|
|
use Core\Driver\SQL\Column\EnumColumn;
|
|
use Core\Driver\SQL\Column\DateTimeColumn;
|
|
use Core\Driver\SQL\Column\BoolColumn;
|
|
use Core\Driver\SQL\Column\JsonColumn;
|
|
|
|
use Core\Driver\SQL\Expression\Add;
|
|
use Core\Driver\SQL\Expression\CurrentTimeStamp;
|
|
use Core\Driver\SQL\Expression\Expression;
|
|
use Core\Driver\SQL\Query\CreateProcedure;
|
|
use Core\Driver\SQL\Query\CreateTrigger;
|
|
use Core\Driver\SQL\Query\Query;
|
|
use Core\Driver\SQL\Strategy\Strategy;
|
|
use Core\Driver\SQL\Strategy\UpdateStrategy;
|
|
use Core\Driver\SQL\Type\CurrentColumn;
|
|
use Core\Driver\SQL\Type\CurrentTable;
|
|
use Core\Driver\SQL\Type\Trigger;
|
|
|
|
class MySQL extends SQL {
|
|
|
|
public function __construct($connectionData) {
|
|
parent::__construct($connectionData);
|
|
}
|
|
|
|
public function checkRequirements() {
|
|
return function_exists('mysqli_connect');
|
|
}
|
|
|
|
public function getDriverName() {
|
|
return 'mysqli';
|
|
}
|
|
|
|
// Connection Management
|
|
public function connect() {
|
|
|
|
if (!is_null($this->connection)) {
|
|
return true;
|
|
}
|
|
|
|
@$this->connection = mysqli_connect(
|
|
$this->connectionData->getHost(),
|
|
$this->connectionData->getLogin(),
|
|
$this->connectionData->getPassword(),
|
|
$this->connectionData->getProperty('database'),
|
|
$this->connectionData->getPort()
|
|
);
|
|
|
|
if (mysqli_connect_errno()) {
|
|
$this->lastError = $this->logger->severe("Failed to connect to MySQL: " . mysqli_connect_error());
|
|
$this->connection = NULL;
|
|
return false;
|
|
}
|
|
|
|
mysqli_set_charset($this->connection, $this->connectionData->getProperty('encoding', 'UTF8'));
|
|
return true;
|
|
}
|
|
|
|
public function disconnect() {
|
|
if (is_null($this->connection)) {
|
|
return true;
|
|
}
|
|
|
|
mysqli_close($this->connection);
|
|
return true;
|
|
}
|
|
|
|
public function getLastError(): string {
|
|
$lastError = parent::getLastError();
|
|
if (empty($lastError)) {
|
|
$lastError = mysqli_error($this->connection);
|
|
}
|
|
|
|
return $lastError;
|
|
}
|
|
|
|
private function getPreparedParams($values): array {
|
|
$sqlParams = array('');
|
|
foreach ($values as $value) {
|
|
$paramType = Parameter::parseType($value);
|
|
switch ($paramType) {
|
|
case Parameter::TYPE_BOOLEAN:
|
|
$value = $value ? 1 : 0;
|
|
$sqlParams[0] .= 'i';
|
|
break;
|
|
case Parameter::TYPE_INT:
|
|
$sqlParams[0] .= 'i';
|
|
break;
|
|
case Parameter::TYPE_FLOAT:
|
|
$sqlParams[0] .= 'd';
|
|
break;
|
|
case Parameter::TYPE_DATE:
|
|
if ($value instanceof DateTime) {
|
|
$value = $value->format('Y-m-d');
|
|
}
|
|
$sqlParams[0] .= 's';
|
|
break;
|
|
case Parameter::TYPE_TIME:
|
|
if ($value instanceof DateTime) {
|
|
$value = $value->format('H:i:s');
|
|
}
|
|
$sqlParams[0] .= 's';
|
|
break;
|
|
case Parameter::TYPE_DATE_TIME:
|
|
if ($value instanceof DateTime) {
|
|
$value = $value->format('Y-m-d H:i:s');
|
|
}
|
|
$sqlParams[0] .= 's';
|
|
break;
|
|
case Parameter::TYPE_ARRAY:
|
|
$value = json_encode($value);
|
|
$sqlParams[0] .= 's';
|
|
break;
|
|
case Parameter::TYPE_EMAIL:
|
|
default:
|
|
$sqlParams[0] .= 's';
|
|
}
|
|
|
|
$sqlParams[] = $value;
|
|
}
|
|
|
|
return $sqlParams;
|
|
}
|
|
|
|
/**
|
|
* @return mixed
|
|
*/
|
|
protected function execute($query, $values = NULL, int $fetchType = self::FETCH_NONE, int $logLevel = Logger::LOG_LEVEL_ERROR) {
|
|
|
|
$result = null;
|
|
$this->lastError = "";
|
|
$stmt = null;
|
|
$res = null;
|
|
$success = false;
|
|
|
|
if ($logLevel === Logger::LOG_LEVEL_DEBUG) {
|
|
$this->logger->debug("query: " . $query . ", args: " . json_encode($values), false);
|
|
}
|
|
|
|
try {
|
|
if (empty($values)) {
|
|
$res = mysqli_query($this->connection, $query);
|
|
$success = ($res !== FALSE);
|
|
if ($success) {
|
|
switch ($fetchType) {
|
|
case self::FETCH_NONE:
|
|
$result = true;
|
|
break;
|
|
case self::FETCH_ONE:
|
|
$result = $res->fetch_assoc();
|
|
break;
|
|
case self::FETCH_ALL:
|
|
$result = $res->fetch_all(MYSQLI_ASSOC);
|
|
break;
|
|
case self::FETCH_ITERATIVE:
|
|
$result = new RowIteratorMySQL($res);
|
|
break;
|
|
}
|
|
}
|
|
} else if ($stmt = $this->connection->prepare($query)) {
|
|
$sqlParams = $this->getPreparedParams($values);
|
|
if ($stmt->bind_param(...$sqlParams)) {
|
|
if ($stmt->execute()) {
|
|
if ($fetchType === self::FETCH_NONE) {
|
|
$result = true;
|
|
$success = true;
|
|
} else {
|
|
$res = $stmt->get_result();
|
|
if ($res) {
|
|
switch ($fetchType) {
|
|
case self::FETCH_ONE:
|
|
$result = $res->fetch_assoc();
|
|
break;
|
|
case self::FETCH_ALL:
|
|
$result = $res->fetch_all(MYSQLI_ASSOC);
|
|
break;
|
|
case self::FETCH_ITERATIVE:
|
|
$result = new RowIteratorMySQL($res);
|
|
break;
|
|
}
|
|
$success = true;
|
|
} else {
|
|
$this->lastError = $this->logger->error("PreparedStatement::get_result failed: $stmt->error ($stmt->errno)");
|
|
}
|
|
}
|
|
} else {
|
|
$this->lastError = $this->logger->error("PreparedStatement::execute failed: $stmt->error ($stmt->errno)");
|
|
}
|
|
} else {
|
|
$this->lastError = $this->logger->error("PreparedStatement::prepare failed: $stmt->error ($stmt->errno)");
|
|
}
|
|
}
|
|
} catch (\mysqli_sql_exception $exception) {
|
|
if ($logLevel >= Logger::LOG_LEVEL_ERROR) {
|
|
$this->lastError = $this->logger->error("MySQL::execute failed: " .
|
|
($stmt !== null
|
|
? "$stmt->error ($stmt->errno)"
|
|
: $exception->getMessage()));
|
|
}
|
|
} finally {
|
|
|
|
if ($res !== null && !is_bool($res) && $fetchType !== self::FETCH_ITERATIVE) {
|
|
$res->close();
|
|
}
|
|
|
|
if ($stmt !== null && !is_bool($stmt)) {
|
|
$stmt->close();
|
|
}
|
|
|
|
}
|
|
|
|
return $success ? $result : false;
|
|
}
|
|
|
|
public function getOnDuplicateStrategy(?Strategy $strategy, &$params): ?string {
|
|
if (is_null($strategy)) {
|
|
return "";
|
|
} else if ($strategy instanceof UpdateStrategy) {
|
|
$updateValues = array();
|
|
foreach ($strategy->getValues() as $key => $value) {
|
|
$leftColumn = $this->columnName($key);
|
|
if ($value instanceof Column) {
|
|
$columnName = $this->columnName($value->getName());
|
|
$updateValues[] = "$leftColumn=VALUES($columnName)";
|
|
} else if ($value instanceof Add) {
|
|
$columnName = $this->columnName($value->getColumn());
|
|
$operator = $value->getOperator();
|
|
$value = $value->getValue();
|
|
$updateValues[] = "$leftColumn=$columnName$operator" . $this->addValue($value, $params);
|
|
} else {
|
|
$updateValues[] = "$leftColumn=" . $this->addValue($value, $params);
|
|
}
|
|
}
|
|
|
|
return " ON DUPLICATE KEY UPDATE " . implode(",", $updateValues);
|
|
} else {
|
|
$strategyClass = get_class($strategy);
|
|
$this->lastError = $this->logger->error("ON DUPLICATE Strategy $strategyClass is not supported yet.");
|
|
return null;
|
|
}
|
|
}
|
|
|
|
protected function fetchReturning($res, string $returningCol) {
|
|
$this->lastInsertId = mysqli_insert_id($this->connection);
|
|
}
|
|
|
|
public function getColumnType(Column $column): ?string {
|
|
if ($column instanceof StringColumn) {
|
|
$maxSize = $column->getMaxSize();
|
|
if ($maxSize) {
|
|
return "VARCHAR($maxSize)";
|
|
} else {
|
|
return "TEXT";
|
|
}
|
|
} else if ($column instanceof SerialColumn) {
|
|
return "INTEGER AUTO_INCREMENT";
|
|
} else if ($column instanceof IntColumn) {
|
|
$unsigned = $column->isUnsigned() ? " UNSIGNED" : "";
|
|
return $column->getType() . $unsigned;
|
|
} else if ($column instanceof DateTimeColumn) {
|
|
return "DATETIME";
|
|
} else if ($column instanceof BoolColumn) {
|
|
return "BOOLEAN";
|
|
} else if ($column instanceof JsonColumn) {
|
|
return "LONGTEXT"; # some maria db setups don't allow JSON here…
|
|
} else if ($column instanceof NumericColumn) {
|
|
$digitsTotal = $column->getTotalDigits();
|
|
$digitsDecimal = $column->getDecimalDigits();
|
|
$type = $column->getTypeName();
|
|
if ($digitsTotal !== null) {
|
|
if ($digitsDecimal !== null) {
|
|
return "$type($digitsTotal,$digitsDecimal)";
|
|
} else {
|
|
return "$type($digitsTotal)";
|
|
}
|
|
} else {
|
|
return $type;
|
|
}
|
|
} else {
|
|
$this->lastError = $this->logger->error("Unsupported Column Type: " . get_class($column));
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
public function getColumnDefinition(Column $column): ?string {
|
|
$columnName = $this->columnName($column->getName());
|
|
$defaultValue = $column->getDefaultValue();
|
|
if ($column instanceof EnumColumn) { // check this, shouldn't it be in getColumnType?
|
|
$values = array();
|
|
foreach ($column->getValues() as $value) {
|
|
$values[] = $this->getValueDefinition($value);
|
|
}
|
|
|
|
$values = implode(",", $values);
|
|
$type = "ENUM($values)";
|
|
} else {
|
|
$type = $this->getColumnType($column);
|
|
if (!$type) {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
if ($type === "LONGTEXT") {
|
|
$defaultValue = NULL; # must be null :(
|
|
}
|
|
|
|
$notNull = $column->notNull() ? " NOT NULL" : "";
|
|
if (!is_null($defaultValue) || !$column->notNull()) {
|
|
$defaultValue = " DEFAULT " . $this->getValueDefinition($defaultValue);
|
|
} else {
|
|
$defaultValue = "";
|
|
}
|
|
|
|
return "$columnName $type$notNull$defaultValue";
|
|
}
|
|
|
|
public function getValueDefinition($value) {
|
|
if (is_numeric($value)) {
|
|
return $value;
|
|
} else if (is_bool($value)) {
|
|
return $value ? "TRUE" : "FALSE";
|
|
} else if (is_null($value)) {
|
|
return "NULL";
|
|
} else if ($value instanceof Keyword) {
|
|
return $value->getValue();
|
|
} else if ($value instanceof CurrentTimeStamp) {
|
|
return "CURRENT_TIMESTAMP";
|
|
} else {
|
|
$str = addslashes($value);
|
|
return "'$str'";
|
|
}
|
|
}
|
|
|
|
public function addValue($val, &$params = NULL, bool $unsafe = false) {
|
|
if ($val instanceof Expression) {
|
|
return $val->getExpression($this, $params);
|
|
} else {
|
|
if ($unsafe) {
|
|
return $this->getUnsafeValue($val);
|
|
} else {
|
|
$params[] = $val;
|
|
return "?";
|
|
}
|
|
}
|
|
}
|
|
|
|
public function tableName($table): string {
|
|
if (is_array($table)) {
|
|
$tables = array();
|
|
foreach ($table as $t) $tables[] = $this->tableName($t);
|
|
return implode(",", $tables);
|
|
} else {
|
|
$parts = explode(" ", $table);
|
|
if (count($parts) === 2) {
|
|
list ($name, $alias) = $parts;
|
|
return "`$name` $alias";
|
|
} else {
|
|
return "`$table`";
|
|
}
|
|
}
|
|
}
|
|
|
|
public function columnName($col): string {
|
|
if ($col instanceof Keyword) {
|
|
return $col->getValue();
|
|
} elseif (is_array($col)) {
|
|
$columns = array();
|
|
foreach ($col as $c) $columns[] = $this->columnName($c);
|
|
return implode(",", $columns);
|
|
} else {
|
|
if (($index = strrpos($col, ".")) !== FALSE) {
|
|
$tableName = $this->tableName(substr($col, 0, $index));
|
|
$columnName = $this->columnName(substr($col, $index + 1));
|
|
return "$tableName.$columnName";
|
|
} else if (($index = stripos($col, " as ")) !== FALSE) {
|
|
$columnName = $this->columnName(trim(substr($col, 0, $index)));
|
|
$alias = trim(substr($col, $index + 4));
|
|
return "$columnName as $alias";
|
|
} else {
|
|
return "`$col`";
|
|
}
|
|
}
|
|
}
|
|
|
|
public function getStatus() {
|
|
return mysqli_stat($this->connection);
|
|
}
|
|
|
|
public function createTriggerBody(CreateTrigger $trigger, array $parameters = []): ?string {
|
|
$values = array();
|
|
|
|
foreach ($parameters as $paramValue) {
|
|
if ($paramValue instanceof CurrentTable) {
|
|
$values[] = $this->getUnsafeValue($trigger->getTable());
|
|
} elseif ($paramValue instanceof CurrentColumn) {
|
|
$prefix = ($trigger->getEvent() !== "DELETE" ? "NEW." : "OLD.");
|
|
$values[] = $this->columnName($prefix . $paramValue->getName());
|
|
} else {
|
|
$values[] = $paramValue;
|
|
}
|
|
}
|
|
|
|
$procName = $trigger->getProcedure()->getName();
|
|
$procParameters = implode(",", $values);
|
|
return "CALL $procName($procParameters)";
|
|
}
|
|
|
|
private function getParameterDefinition(Column $parameter, bool $out = false): string {
|
|
$out = ($out ? "OUT" : "IN");
|
|
$name = $parameter->getName();
|
|
$type = $this->getColumnType($parameter);
|
|
return "$out $name $type";
|
|
}
|
|
|
|
public function getProcedureHead(CreateProcedure $procedure): ?string {
|
|
$name = $procedure->getName();
|
|
$returns = $procedure->getReturns();
|
|
$paramDefs = [];
|
|
|
|
foreach ($procedure->getParameters() as $parameter) {
|
|
if ($parameter instanceof Column) {
|
|
$paramDefs[] = $this->getParameterDefinition($parameter);
|
|
} else if ($parameter instanceof CurrentTable) {
|
|
$paramDefs[] = $this->getParameterDefinition($parameter->toColumn());
|
|
} else {
|
|
$this->lastError = $this->logger->error("PROCEDURE parameter type " . gettype($returns) . " is not implemented yet");
|
|
return null;
|
|
}
|
|
}
|
|
|
|
if ($returns) {
|
|
if ($returns instanceof Column) {
|
|
$paramDefs[] = $this->getParameterDefinition($returns, true);
|
|
} else if (!($returns instanceof Trigger)) { // mysql does not need to return triggers here
|
|
$this->lastError = $this->logger->error("PROCEDURE RETURN type " . gettype($returns) . " is not implemented yet");
|
|
return null;
|
|
}
|
|
}
|
|
|
|
$paramDefs = implode(",", $paramDefs);
|
|
return "CREATE PROCEDURE $name($paramDefs)";
|
|
}
|
|
|
|
protected function buildUnsafe(Query $statement): string {
|
|
$params = [];
|
|
$query = $statement->build($params);
|
|
|
|
foreach ($params as $value) {
|
|
$query = preg_replace("?", $this->getUnsafeValue($value), $query, 1);
|
|
}
|
|
|
|
return $query;
|
|
}
|
|
|
|
// FIXME: access mysql database instead of configured one
|
|
public function tableExists(string $tableName): bool {
|
|
$tableSchema = $this->connectionData->getProperty("database");
|
|
$res = $this->select(new Count())
|
|
->from("information_schema.TABLES")
|
|
->where(new Compare("TABLE_NAME", $tableName, "=", true))
|
|
->where(new Compare("TABLE_SCHEMA", $tableSchema, "=", true))
|
|
->where(new CondLike(new Column("TABLE_TYPE"), "BASE TABLE"))
|
|
->execute();
|
|
|
|
return $res && $res[0]["count"] > 0;
|
|
}
|
|
}
|
|
|
|
class RowIteratorMySQL extends RowIterator {
|
|
|
|
public function __construct($resultSet, bool $useCache = false) {
|
|
parent::__construct($resultSet, $useCache);
|
|
}
|
|
|
|
protected function getNumRows(): int {
|
|
return $this->resultSet->num_rows;
|
|
}
|
|
|
|
protected function fetchRow(int $index): array {
|
|
// check if we already fetched that row
|
|
if (!$this->useCache || $index >= count($this->fetchedRows)) {
|
|
// if not, fetch it from the result set
|
|
$row = $this->resultSet->fetch_assoc();
|
|
if ($this->useCache) {
|
|
$this->fetchedRows[] = $row;
|
|
}
|
|
|
|
// close result set, after everything's fetched
|
|
if ($index >= $this->numRows - 1) {
|
|
$this->resultSet->close();
|
|
}
|
|
} else {
|
|
$row = $this->fetchedRows[$index];
|
|
}
|
|
|
|
return $row;
|
|
}
|
|
|
|
public function rewind() {
|
|
if ($this->useCache) {
|
|
$this->rowIndex = 0;
|
|
} else if ($this->rowIndex !== 0) {
|
|
throw new \Exception("RowIterator::rewind() not supported, when caching is disabled");
|
|
}
|
|
}
|
|
} |