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78 lines
2.8 KiB
78 lines
2.8 KiB
<?php
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/** @license MIT
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* Copyright 2017 J. King, Dustin Wilson et al.
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* See LICENSE and AUTHORS files for details */
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declare(strict_types=1);
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namespace JKingWeb\Arsse\Db\PostgreSQL;
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class PDOStatement extends \JKingWeb\Arsse\Db\AbstractStatement {
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use \JKingWeb\Arsse\Db\PDOError;
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const BINDINGS = [
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"integer" => "bigint",
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"float" => "decimal",
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"datetime" => "timestamp",
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"binary" => "bytea",
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"string" => "text",
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"boolean" => "smallint", // FIXME: using boolean leads to incompatibilities with versions of SQLite bundled prior to PHP 7.3
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];
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protected $db;
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protected $st;
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protected $qOriginal;
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protected $qMunged;
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protected $bindings;
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public function __construct(\PDO $db, string $query, array $bindings = []) {
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$this->db = $db; // both db and st are the same object due to the logic of the PDOError handler
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$this->qOriginal = $query;
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$this->retypeArray($bindings);
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}
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public function __destruct() {
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unset($this->db, $this->st);
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}
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public function retypeArray(array $bindings, bool $append = false): bool {
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if ($append) {
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return parent::retypeArray($bindings, $append);
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} else {
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$this->bindings = $bindings;
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parent::retypeArray($bindings, $append);
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$this->qMunged = self::mungeQuery($this->qOriginal, $this->types, false);
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try {
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// statement creation with PostgreSQL should never fail (it is not evaluated at creation time)
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$s = $this->db->prepare($this->qMunged);
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} catch (\PDOException $e) { // @codeCoverageIgnore
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list($excClass, $excMsg, $excData) = $this->exceptionBuild(true); // @codeCoverageIgnore
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throw new $excClass($excMsg, $excData); // @codeCoverageIgnore
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}
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$this->st = new \JKingWeb\Arsse\Db\PDOStatement($this->db, $s, $this->bindings);
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}
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return true;
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}
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public static function mungeQuery(string $q, array $types, bool $mungeParamMarkers = true): string {
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$q = explode("?", $q);
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$out = "";
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for ($b = 1; $b < sizeof($q); $b++) {
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$a = $b - 1;
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$mark = $mungeParamMarkers ? "\$$b" : "?";
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$type = isset($types[$a]) ? "::".self::BINDINGS[$types[$a]] : "";
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$out .= $q[$a].$mark.$type;
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}
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$out .= array_pop($q);
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return $out;
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}
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public function runArray(array $values = []): \JKingWeb\Arsse\Db\Result {
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return $this->st->runArray($values);
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}
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/** @codeCoverageIgnore */
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protected function bindValue($value, string $type, int $position): bool {
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// stub required by abstract parent, but never used
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return $value;
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}
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}
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