mirror of
https://code.mensbeam.com/MensBeam/Arsse.git
synced 2024-12-23 05:54:55 +00:00
92 lines
3.8 KiB
PHP
92 lines
3.8 KiB
PHP
<?php
|
|
/** @license MIT
|
|
* Copyright 2017 J. King, Dustin Wilson et al.
|
|
* See LICENSE and AUTHORS files for details */
|
|
|
|
declare(strict_types=1);
|
|
|
|
namespace JKingWeb\Arsse\Db;
|
|
|
|
use JKingWeb\Arsse\Misc\Date;
|
|
use JKingWeb\Arsse\Misc\ValueInfo;
|
|
|
|
abstract class AbstractStatement implements Statement {
|
|
use SQLState;
|
|
|
|
public const TYPE_NORM_MAP = [
|
|
self::T_INTEGER => ValueInfo::M_NULL | ValueInfo::T_INT,
|
|
self::T_STRING => ValueInfo::M_NULL | ValueInfo::T_STRING,
|
|
self::T_BOOLEAN => ValueInfo::M_NULL | ValueInfo::T_BOOL,
|
|
self::T_DATETIME => ValueInfo::M_NULL | ValueInfo::T_DATE,
|
|
self::T_FLOAT => ValueInfo::M_NULL | ValueInfo::T_FLOAT,
|
|
self::T_BINARY => ValueInfo::M_NULL | ValueInfo::T_STRING,
|
|
self::T_NOT_NULL + self::T_INTEGER => ValueInfo::T_INT,
|
|
self::T_NOT_NULL + self::T_STRING => ValueInfo::T_STRING,
|
|
self::T_NOT_NULL + self::T_BOOLEAN => ValueInfo::T_BOOL,
|
|
self::T_NOT_NULL + self::T_DATETIME => ValueInfo::T_DATE,
|
|
self::T_NOT_NULL + self::T_FLOAT => ValueInfo::T_FLOAT,
|
|
self::T_NOT_NULL + self::T_BINARY => ValueInfo::T_STRING,
|
|
];
|
|
|
|
protected $types = [];
|
|
|
|
abstract public function runArray(array $values = []): Result;
|
|
abstract protected function bindValue($value, int $type, int $position): bool;
|
|
abstract protected function prepare(string $query): bool;
|
|
abstract protected static function buildEngineException($code, string $msg): array;
|
|
|
|
public function run(...$values): Result {
|
|
return $this->runArray($values);
|
|
}
|
|
|
|
public function retype(...$bindings): bool {
|
|
return $this->retypeArray($bindings);
|
|
}
|
|
|
|
public static function mungeQuery(string $query, array $types, ...$extraData): string {
|
|
return $query;
|
|
}
|
|
|
|
public function retypeArray(array $bindings): bool {
|
|
$this->types = [];
|
|
foreach (ValueInfo::flatten($bindings) as $binding) { // recursively flatten any arrays, which may be provided for SET or IN() clauses
|
|
$bindId = self::TYPES[trim(strtolower($binding))] ?? 0;
|
|
assert($bindId, new Exception("paramTypeInvalid", $binding));
|
|
$this->types[] = $bindId;
|
|
}
|
|
$this->prepare(static::mungeQuery($this->query, $this->types));
|
|
return true;
|
|
}
|
|
|
|
protected function cast($v, int $t) {
|
|
switch ($t) {
|
|
case self::T_DATETIME:
|
|
return Date::transform($v, "sql");
|
|
case self::T_DATETIME + self::T_NOT_NULL:
|
|
$v = Date::transform($v, "sql");
|
|
return $v ? $v : "0001-01-01 00:00:00";
|
|
default:
|
|
$v = ValueInfo::normalize($v, self::TYPE_NORM_MAP[$t], null, "sql");
|
|
return is_bool($v) ? (int) $v : $v;
|
|
}
|
|
}
|
|
|
|
protected function bindValues(array $values): bool {
|
|
// recursively flatten any arrays, which may be provided for SET or IN() clauses
|
|
$values = ValueInfo::flatten($values);
|
|
foreach ($values as $a => $value) {
|
|
if (array_key_exists($a, $this->types)) {
|
|
$value = $this->cast($value, $this->types[$a]);
|
|
$this->bindValue($value, $this->types[$a] % self::T_NOT_NULL, ++$a);
|
|
} else {
|
|
throw new Exception("paramTypeMissing", $a + 1);
|
|
}
|
|
}
|
|
// once all values are bound, check that all parameters have been supplied values and bind null for any missing ones
|
|
// SQLite will happily substitute null for a missing value, but other engines (viz. PostgreSQL) produce an error
|
|
for ($a = sizeof($values); $a < sizeof($this->types); $a++) {
|
|
$this->bindValue(null, $this->types[$a] % self::T_NOT_NULL, $a + 1);
|
|
}
|
|
return true;
|
|
}
|
|
}
|