Add DB\Pgsql
This commit is contained in:
Visman
parent
bb8ef348e7
commit
4eb2854293
1 changed files with 536 additions and 0 deletions
536
app/Core/DB/Pgsql.php
Normal file
536
app/Core/DB/Pgsql.php
Normal file
|
|
@ -0,0 +1,536 @@
|
|||
<?php
|
||||
/**
|
||||
* This file is part of the ForkBB <https://github.com/forkbb>.
|
||||
*
|
||||
* @copyright (c) Visman <mio.visman@yandex.ru, https://github.com/MioVisman>
|
||||
* @license The MIT License (MIT)
|
||||
*/
|
||||
|
||||
declare(strict_types=1);
|
||||
|
||||
namespace ForkBB\Core\DB;
|
||||
|
||||
use ForkBB\Core\DB;
|
||||
use PDO;
|
||||
use PDOStatement;
|
||||
use PDOException;
|
||||
|
||||
class Pgsql
|
||||
{
|
||||
/**
|
||||
* @var DB
|
||||
*/
|
||||
protected $db;
|
||||
|
||||
/**
|
||||
* Префикс для таблиц базы
|
||||
* @var string
|
||||
*/
|
||||
protected $dbPrefix;
|
||||
|
||||
/**
|
||||
* Массив замены типов полей таблицы
|
||||
* @var array
|
||||
*/
|
||||
protected $dbTypeRepl = [
|
||||
'%^(?:TINY|SMALL)INT(?:\s*\(\d+\))?(?:\s*UNSIGNED)?$%i' => 'SMALLINT',
|
||||
'%^(?:MEDIUM)?INT(?:\s*\(\d+\))?(?:\s*UNSIGNED)?$%i' => 'INTEGER',
|
||||
'%^BIGINT(?:\s*\(\d+\))?(?:\s*UNSIGNED)?$%i' => 'BIGINT',
|
||||
'%^(?:TINY|MEDIUM|LONG)TEXT$%i' => 'TEXT',
|
||||
'%^DOUBLE(?:\s+PRECISION)?(?:\s*\([\d,]+\))?(?:\s*UNSIGNED)?$%i' => 'DOUBLE PRECISION',
|
||||
'%^FLOAT(?:\s*\([\d,]+\))?(?:\s*UNSIGNED)?$%i' => 'REAL',
|
||||
];
|
||||
|
||||
/**
|
||||
* Подстановка типов полей для карты БД
|
||||
* @var array
|
||||
*/
|
||||
protected $types = [
|
||||
'bool' => 'b',
|
||||
'boolean' => 'b',
|
||||
'tinyint' => 'i',
|
||||
'smallint' => 'i',
|
||||
'mediumint' => 'i',
|
||||
'int' => 'i',
|
||||
'integer' => 'i',
|
||||
'bigint' => 'i',
|
||||
'decimal' => 'i',
|
||||
'dec' => 'i',
|
||||
'float' => 'i',
|
||||
'real' => 'i',
|
||||
'double' => 'i',
|
||||
'double precision' => 'i',
|
||||
];
|
||||
|
||||
public function __construct(DB $db, string $prefix)
|
||||
{
|
||||
$this->db = $db;
|
||||
|
||||
$this->testStr($prefix);
|
||||
|
||||
$this->dbPrefix = $prefix;
|
||||
}
|
||||
|
||||
/**
|
||||
* Перехват неизвестных методов
|
||||
*/
|
||||
public function __call(string $name, array $args)
|
||||
{
|
||||
throw new PDOException("Method '{$name}' not found in DB driver.");
|
||||
}
|
||||
|
||||
/**
|
||||
* Проверяет строку на допустимые символы
|
||||
*/
|
||||
protected function testStr(string $str): void
|
||||
{
|
||||
if (\preg_match('%[^a-zA-Z0-9_]%', $str)) {
|
||||
throw new PDOException("Name '{$str}' have bad characters.");
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Операции над полями индексов: проверка, замена
|
||||
*/
|
||||
protected function replIdxs(array $arr): string
|
||||
{
|
||||
foreach ($arr as &$value) {
|
||||
if (\preg_match('%^(.*)\s*(\(\d+\))$%', $value, $matches)) {
|
||||
$this->testStr($matches[1]);
|
||||
|
||||
$value = "\"{$matches[1]}\""; // {$matches[2]}
|
||||
} else {
|
||||
$this->testStr($value);
|
||||
|
||||
$value = "\"{$value}\"";
|
||||
}
|
||||
}
|
||||
|
||||
unset($value);
|
||||
|
||||
return \implode(',', $arr);
|
||||
}
|
||||
|
||||
/**
|
||||
* Замена типа поля в соответствии с dbTypeRepl
|
||||
*/
|
||||
protected function replType(string $type): string
|
||||
{
|
||||
return \preg_replace(\array_keys($this->dbTypeRepl), \array_values($this->dbTypeRepl), $type);
|
||||
}
|
||||
|
||||
/**
|
||||
* Конвертирует данные в строку для DEFAULT
|
||||
*/
|
||||
protected function convToStr(/* mixed */ $data): string
|
||||
{
|
||||
if (\is_string($data)) {
|
||||
return $this->db->quote($data);
|
||||
} elseif (\is_numeric($data)) {
|
||||
return (string) $data;
|
||||
} elseif (\is_bool($data)) {
|
||||
return $data ? 'true' : 'false';
|
||||
} else {
|
||||
throw new PDOException('Invalid data type for DEFAULT.');
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Проверяет наличие таблицы в базе
|
||||
*/
|
||||
public function tableExists(string $table, bool $noPrefix = false): bool
|
||||
{
|
||||
$vars = [
|
||||
':schema' => 'public',
|
||||
':tname' => ($noPrefix ? '' : $this->dbPrefix) . $table,
|
||||
':ttype' => 'r',
|
||||
];
|
||||
$query = 'SELECT 1
|
||||
FROM pg_class AS c
|
||||
INNER JOIN pg_namespace AS n ON n.oid=c.relnamespace
|
||||
WHERE c.relname=?s:tname AND c.relkind=?s:ttype AND n.nspname=?s:schema';
|
||||
|
||||
$stmt = $this->db->query($query, $vars);
|
||||
$result = $stmt->fetch();
|
||||
|
||||
$stmt->closeCursor();
|
||||
|
||||
return ! empty($result);
|
||||
}
|
||||
|
||||
/**
|
||||
* Проверяет наличие поля в таблице
|
||||
*/
|
||||
public function fieldExists(string $table, string $field, bool $noPrefix = false): bool
|
||||
{
|
||||
$vars = [
|
||||
':schema' => 'public',
|
||||
':tname' => ($noPrefix ? '' : $this->dbPrefix) . $table,
|
||||
':ttype' => 'r',
|
||||
':fname' => $field,
|
||||
];
|
||||
$query = 'SELECT 1
|
||||
FROM pg_attribute AS a
|
||||
INNER JOIN pg_class AS c ON a.attrelid=c.oid
|
||||
INNER JOIN pg_namespace AS n ON n.oid=c.relnamespace
|
||||
WHERE a.attname=?s:fname AND c.relname=?s:tname AND c.relkind=?s:ttype AND n.nspname=?s:schema';
|
||||
|
||||
$stmt = $this->db->query($query, $vars);
|
||||
$result = $stmt->fetch();
|
||||
|
||||
$stmt->closeCursor();
|
||||
|
||||
return ! empty($result);
|
||||
}
|
||||
|
||||
/**
|
||||
* Проверяет наличие индекса в таблице
|
||||
*/
|
||||
public function indexExists(string $table, string $index, bool $noPrefix = false): bool
|
||||
{
|
||||
$table = ($noPrefix ? '' : $this->dbPrefix) . $table;
|
||||
$index = $table . '_' . ('PRIMARY' === $index ? 'pkey' : $index);
|
||||
|
||||
$vars = [
|
||||
':schema' => 'public',
|
||||
':tname' => $table,
|
||||
':ttype' => 'r',
|
||||
':iname' => $index,
|
||||
':itype' => 'i',
|
||||
];
|
||||
$query = 'SELECT 1
|
||||
FROM pg_class AS i
|
||||
INNER JOIN pg_index AS ix ON ix.indexrelid=i.oid
|
||||
INNER JOIN pg_class AS c ON c.oid=ix.indrelid
|
||||
INNER JOIN pg_namespace AS n ON n.oid=c.relnamespace
|
||||
WHERE i.relname=?s:iname
|
||||
AND i.relkind=?s:itype
|
||||
AND c.relname=?s:tname
|
||||
AND c.relkind=?s:ttype
|
||||
AND n.nspname=?s:schema';
|
||||
|
||||
$stmt = $this->db->query($query, $vars);
|
||||
$result = $stmt->fetch();
|
||||
|
||||
$stmt->closeCursor();
|
||||
|
||||
return ! empty($result);
|
||||
}
|
||||
|
||||
/**
|
||||
* Создает таблицу
|
||||
*/
|
||||
public function createTable(string $table, array $schema, bool $noPrefix = false): bool
|
||||
{
|
||||
$this->testStr($table);
|
||||
|
||||
$table = ($noPrefix ? '' : $this->dbPrefix) . $table;
|
||||
$query = "CREATE TABLE IF NOT EXISTS \"{$table}\" (";
|
||||
|
||||
foreach ($schema['FIELDS'] as $field => $data) {
|
||||
$this->testStr($field);
|
||||
// имя и тип
|
||||
$query .= "\"{$field}\" " . $this->replType($data[0]);
|
||||
|
||||
if ('SERIAL' !== \strtoupper($data[0])) {
|
||||
// не NULL
|
||||
if (empty($data[1])) {
|
||||
$query .= ' NOT NULL';
|
||||
}
|
||||
// значение по умолчанию
|
||||
if (isset($data[2])) {
|
||||
$query .= ' DEFAULT ' . $this->convToStr($data[2]);
|
||||
}
|
||||
}
|
||||
|
||||
$query .= ', ';
|
||||
}
|
||||
|
||||
if (isset($schema['PRIMARY KEY'])) {
|
||||
$query .= 'PRIMARY KEY (' . $this->replIdxs($schema['PRIMARY KEY']) . '), ';
|
||||
}
|
||||
|
||||
$query = \rtrim($query, ', ') . ")";
|
||||
$result = false !== $this->db->exec($query);
|
||||
|
||||
// вынесено отдельно для сохранения имен индексов
|
||||
if ($result && isset($schema['UNIQUE KEYS'])) {
|
||||
foreach ($schema['UNIQUE KEYS'] as $key => $fields) {
|
||||
$result = $result && $this->addIndex($table, $key, $fields, true, true);
|
||||
}
|
||||
}
|
||||
|
||||
if ($result && isset($schema['INDEXES'])) {
|
||||
foreach ($schema['INDEXES'] as $index => $fields) {
|
||||
$result = $result && $this->addIndex($table, $index, $fields, false, true);
|
||||
}
|
||||
}
|
||||
|
||||
return $result;
|
||||
}
|
||||
|
||||
/**
|
||||
* Удаляет таблицу
|
||||
*/
|
||||
public function dropTable(string $table, bool $noPrefix = false): bool
|
||||
{
|
||||
$this->testStr($table);
|
||||
|
||||
$table = ($noPrefix ? '' : $this->dbPrefix) . $table;
|
||||
|
||||
return false !== $this->db->exec("DROP TABLE IF EXISTS \"{$table}\"");
|
||||
}
|
||||
|
||||
/**
|
||||
* Переименовывает таблицу
|
||||
*/
|
||||
public function renameTable(string $old, string $new, bool $noPrefix = false): bool
|
||||
{
|
||||
$this->testStr($old);
|
||||
$this->testStr($new);
|
||||
|
||||
if (
|
||||
$this->tableExists($new, $noPrefix)
|
||||
&& ! $this->tableExists($old, $noPrefix)
|
||||
) {
|
||||
return true;
|
||||
}
|
||||
|
||||
$old = ($noPrefix ? '' : $this->dbPrefix) . $old;
|
||||
$new = ($noPrefix ? '' : $this->dbPrefix) . $new;
|
||||
|
||||
return false !== $this->db->exec("ALTER TABLE \"{$old}\" RENAME TO \"{$new}\"");
|
||||
}
|
||||
|
||||
/**
|
||||
* Добавляет поле в таблицу
|
||||
*/
|
||||
public function addField(string $table, string $field, string $type, bool $allowNull, /* mixed */ $default = null, string $after = null, bool $noPrefix = false): bool
|
||||
{
|
||||
$this->testStr($table);
|
||||
$this->testStr($field);
|
||||
|
||||
if ($this->fieldExists($table, $field, $noPrefix)) {
|
||||
return true;
|
||||
}
|
||||
|
||||
$table = ($noPrefix ? '' : $this->dbPrefix) . $table;
|
||||
$query = "ALTER TABLE \"{$table}\" ADD \"{$field}\" " . $this->replType($type);
|
||||
|
||||
if ('SERIAL' !== \strtoupper($type)) {
|
||||
if (! $allowNull) {
|
||||
$query .= ' NOT NULL';
|
||||
}
|
||||
|
||||
if (null !== $default) {
|
||||
$query .= ' DEFAULT ' . $this->convToStr($default);
|
||||
}
|
||||
}
|
||||
|
||||
return false !== $this->db->exec($query);
|
||||
}
|
||||
|
||||
/**
|
||||
* Модифицирует поле в таблице
|
||||
*/
|
||||
public function alterField(string $table, string $field, string $type, bool $allowNull, /* mixed */ $default = null, string $after = null, bool $noPrefix = false): bool
|
||||
{
|
||||
$this->testStr($table);
|
||||
$this->testStr($field);
|
||||
|
||||
$table = ($noPrefix ? '' : $this->dbPrefix) . $table;
|
||||
$query = "ALTER TABLE \"{$table}\"";
|
||||
|
||||
if ('SERIAL' === \strtoupper($type) || $allowNull) {
|
||||
$query .= " ALTER COLUMN \"{$field}\" DROP NOT NULL,";
|
||||
}
|
||||
|
||||
if ('SERIAL' === \strtoupper($type) || null === $default) {
|
||||
$query .= " ALTER COLUMN \"{$field}\" DROP DEFAULT,";
|
||||
}
|
||||
|
||||
$query = " ALTER COLUMN \"{$field}\" TYPE " . $this->replType($type) . ','; // ???? Использовать USING?
|
||||
|
||||
if ('SERIAL' !== \strtoupper($type) && ! $allowNull) {
|
||||
$query .= " ALTER COLUMN \"{$field}\" SET NOT NULL,";
|
||||
}
|
||||
|
||||
if ('SERIAL' !== \strtoupper($type) && null !== $default) {
|
||||
$query .= " ALTER COLUMN \"{$field}\" SET DEFAULT " . $this->convToStr($default) . ',';
|
||||
}
|
||||
|
||||
$query = \rtrim($query, ',');
|
||||
|
||||
return false !== $this->db->exec($query);
|
||||
}
|
||||
|
||||
/**
|
||||
* Удаляет поле из таблицы
|
||||
*/
|
||||
public function dropField(string $table, string $field, bool $noPrefix = false): bool
|
||||
{
|
||||
$this->testStr($table);
|
||||
$this->testStr($field);
|
||||
|
||||
if (! $this->fieldExists($table, $field, $noPrefix)) {
|
||||
return true;
|
||||
}
|
||||
|
||||
$table = ($noPrefix ? '' : $this->dbPrefix) . $table;
|
||||
|
||||
return false !== $this->db->exec("ALTER TABLE \"{$table}\" DROP COLUMN \"{$field}\"");
|
||||
}
|
||||
|
||||
/**
|
||||
* Переименование поля в таблице
|
||||
*/
|
||||
public function renameField(string $table, string $old, string $new, bool $noPrefix = false): bool
|
||||
{
|
||||
$this->testStr($table);
|
||||
$this->testStr($old);
|
||||
$this->testStr($new);
|
||||
|
||||
if (
|
||||
$this->fieldExists($table, $new, $noPrefix)
|
||||
&& ! $this->fieldExists($table, $old, $noPrefix)
|
||||
) {
|
||||
return true;
|
||||
}
|
||||
|
||||
$table = ($noPrefix ? '' : $this->dbPrefix) . $table;
|
||||
|
||||
return false !== $this->db->exec("ALTER TABLE \"{$table}\" RENAME COLUMN \"{$old}\" TO \"{$new}\"");
|
||||
}
|
||||
|
||||
/**
|
||||
* Добавляет индекс в таблицу
|
||||
*/
|
||||
public function addIndex(string $table, string $index, array $fields, bool $unique = false, bool $noPrefix = false): bool
|
||||
{
|
||||
$this->testStr($table);
|
||||
|
||||
if ($this->indexExists($table, $index, $noPrefix)) {
|
||||
return true;
|
||||
}
|
||||
|
||||
$table = ($noPrefix ? '' : $this->dbPrefix) . $table;
|
||||
|
||||
if ('PRIMARY' === $index) {
|
||||
// ?????
|
||||
} else {
|
||||
$index = $table . '_' . $index;
|
||||
|
||||
$this->testStr($index);
|
||||
|
||||
$unique = $unique ? 'UNIQUE' : '';
|
||||
$query = "CREATE {$unique} INDEX \"{$index}\" ON \"{$table}\" (" . $this->replIdxs($fields) . ')';
|
||||
}
|
||||
|
||||
return false !== $this->db->exec($query);
|
||||
}
|
||||
|
||||
/**
|
||||
* Удаляет индекс из таблицы
|
||||
*/
|
||||
public function dropIndex(string $table, string $index, bool $noPrefix = false): bool
|
||||
{
|
||||
$this->testStr($table);
|
||||
|
||||
if (! $this->indexExists($table, $index, $noPrefix)) {
|
||||
return true;
|
||||
}
|
||||
|
||||
$table = ($noPrefix ? '' : $this->dbPrefix) . $table;
|
||||
$index = $table . '_' . ('PRIMARY' === $index ? 'pkey' : $index);
|
||||
|
||||
$this->testStr($index);
|
||||
|
||||
return false !== $this->db->exec("DROP INDEX \"{$index}\"");
|
||||
}
|
||||
|
||||
/**
|
||||
* Очищает таблицу
|
||||
*/
|
||||
public function truncateTable(string $table, bool $noPrefix = false): bool
|
||||
{
|
||||
$this->testStr($table);
|
||||
|
||||
$table = ($noPrefix ? '' : $this->dbPrefix) . $table;
|
||||
|
||||
return false !== $this->db->exec("TRUNCATE TABLE ONLY \"{$table}\"");
|
||||
}
|
||||
|
||||
/**
|
||||
* Возвращает статистику
|
||||
*/
|
||||
public function statistics(): array
|
||||
{
|
||||
$records = $size = $tables = 0;
|
||||
|
||||
$vars = [
|
||||
':schema' => 'public',
|
||||
':tname' => str_replace('_', '\\_', $this->dbPrefix) . '%',
|
||||
];
|
||||
$query = 'SELECT c.relname, c.relpages, c.reltuples, c.relkind
|
||||
FROM pg_class AS c
|
||||
INNER JOIN pg_namespace AS n ON n.oid=c.relnamespace
|
||||
WHERE n.nspname=?s:schema AND c.relname LIKE ?s:tname';
|
||||
|
||||
$stmt = $this->db->query($query, $vars);
|
||||
|
||||
while ($row = $stmt->fetch()) {
|
||||
if ('r' === $row['relkind']) { // обычная таблица
|
||||
++$tables;
|
||||
$records += $row['reltuples'];
|
||||
}
|
||||
|
||||
$size += $row['relpages'];
|
||||
}
|
||||
|
||||
$blockSize = $this->db->query('SELECT current_setting(\'block_size\')')->fetchColumn();
|
||||
$size *= $blockSize ?: 8192;
|
||||
|
||||
$other = [];
|
||||
# $stmt = $this->db->query("SHOW VARIABLES LIKE 'character\\_set\\_%'");
|
||||
#
|
||||
# while ($row = $stmt->fetch(PDO::FETCH_NUM)) {
|
||||
# $other[$row[0]] = $row[1];
|
||||
# }
|
||||
|
||||
return [
|
||||
'db' => 'PostgreSQL (PDO) ' . $this->db->getAttribute(PDO::ATTR_SERVER_VERSION) . " : ({$tables})",
|
||||
'records' => $records,
|
||||
'size' => $size,
|
||||
'server info' => $this->db->getAttribute(PDO::ATTR_SERVER_INFO),
|
||||
] + $other;
|
||||
}
|
||||
|
||||
/**
|
||||
* Формирует карту базы данных
|
||||
*/
|
||||
public function getMap(): array
|
||||
{
|
||||
$vars = [
|
||||
':schema' => 'public',
|
||||
':tname' => str_replace('_', '\\_', $this->dbPrefix) . '%',
|
||||
];
|
||||
$query = 'SELECT table_name, column_name, data_type
|
||||
FROM information_schema.columns
|
||||
WHERE table_catalog = current_database() AND table_schema = ?s:schema AND table_name LIKE ?s:tname';
|
||||
|
||||
$stmt = $this->db->query($query, $vars);
|
||||
$result = [];
|
||||
$table = null;
|
||||
while ($row = $stmt->fetch()) {
|
||||
if ($table !== $row['table_name']) {
|
||||
$table = $row['table_name'];
|
||||
$tableNoPref = \substr($table, \strlen($this->dbPrefix));
|
||||
$result[$tableNoPref] = [];
|
||||
}
|
||||
$type = \strtolower($row['data_type']);
|
||||
$result[$tableNoPref][$row['column_name']] = $this->types[$type] ?? 's';
|
||||
}
|
||||
|
||||
return $result;
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Reference in a new issue