AbstractConnectionPDO::open() - Code Metrics - Inspection of "Fix phpdocs, add more tests, better naming. (#449)" - yiisoft/db - Measure and Improve Code Quality continuously with Scrutinizer

Passed

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by Wilmer

created 2023-01-04 12:05 UTC

AbstractConnectionPDO::open() A

↳ Parent: AbstractConnectionPDO

Complexity

Conditions	4
Paths	7

Size

Total Lines	22
Code Lines	14

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
eloc	14
dl	0
loc	22
rs	9.7998
c	0
b	0
f	0
cc	4
nc	7
nop	0

<?php

declare(strict_types=1);

namespace Yiisoft\Db\Driver\PDO;

use PDO;
use PDOException;
use Psr\Log\LogLevel;
use Yiisoft\Db\Cache\QueryCache;
use Yiisoft\Db\Cache\SchemaCache;
use Yiisoft\Db\Connection\AbstractConnection;
use Yiisoft\Db\Exception\Exception;
use Yiisoft\Db\Exception\InvalidCallException;
use Yiisoft\Db\Exception\InvalidConfigException;
use Yiisoft\Db\QueryBuilder\QueryBuilderInterface;
use Yiisoft\Db\Schema\QuoterInterface;
use Yiisoft\Db\Schema\SchemaInterface;

use function array_keys;
use function is_string;

/**
 * The AbstractConnectionPDO class represents a connection to a database using the PDO (PHP Data Objects) extension. It
 * provides a set of methods for interacting with a database using PDO, such as executing SQL statements, preparing and
 * executing statements, and managing transactions.
 *
 * The ConnectionPDO class extends from the AbstractConnection class, which is a base class for representing a
 * connection to a database. It implements the ConnectionInterface, which defines the interface for interacting with a
 * database connection.
 */
abstract class AbstractConnectionPDO extends AbstractConnection implements ConnectionPDOInterface
{
    protected PDO|null $pdo = null;
    protected string $serverVersion = '';
    protected bool|null $emulatePrepare = null;
    protected QueryBuilderInterface|null $queryBuilder = null;
    protected QuoterInterface|null $quoter = null;
    protected SchemaInterface|null $schema = null;

    public function __construct(
        protected PDODriverInterface $driver,
        protected QueryCache $queryCache,
        protected SchemaCache $schemaCache
    ) {
        parent::__construct($queryCache);
    }

    /**
     * Reset the connection after cloning.
     */
    public function __clone()
    {
        $this->transaction = null;
        $this->pdo = null;
    }

    /**
     * Close the connection before serializing.
     */
    public function __sleep(): array
    {
        $fields = (array) $this;

        unset(
            $fields["\000*\000" . 'pdo'],
            $fields["\000*\000" . 'transaction'],
            $fields["\000*\000" . 'schema']
        );

        return array_keys($fields);
    }

    public function open(): void
    {
        if ($this->pdo instanceof PDO) {
            return;
        }

        if ($this->driver->getDsn() === '') {
            throw new InvalidConfigException('Connection::dsn cannot be empty.');
        }

        $token = 'Opening DB connection: ' . $this->driver->getDsn();

        try {
            $this->logger?->log(LogLevel::INFO, $token);
            $this->profiler?->begin($token, [__METHOD__]);
            $this->initConnection();
            $this->profiler?->end($token, [__METHOD__]);
        } catch (PDOException $e) {
            $this->profiler?->end($token, [__METHOD__]);
            $this->logger?->log(LogLevel::ERROR, $token);

            throw new Exception($e->getMessage(), (array) $e->errorInfo, $e);
        }
    }

    public function close(): void
    {
        if ($this->pdo !== null) {
            $this->logger?->log(
                LogLevel::DEBUG,
                'Closing DB connection: ' . $this->driver->getDsn() . ' ' . __METHOD__,
            );

            $this->pdo = null;
            $this->transaction = null;
        }
    }

    public function getCacheKey(): array
    {
        return [$this->driver->getDsn(), $this->driver->getUsername()];
    }

    public function getDriver(): PDODriverInterface
    {
        return $this->driver;
    }

    public function getEmulatePrepare(): bool|null
    {
        return $this->emulatePrepare;
    }

    public function getPDO(): PDO|null
    {
        return $this->pdo;
    }

    public function getActivePDO(string|null $sql = '', bool|null $forRead = null): PDO
    {
        $this->open();
        $pdo = $this->getPDO();

        if ($pdo === null) {
            throw new Exception('PDO cannot be initialized.');
        }

        return $pdo;
    }

    public function getLastInsertID(string $sequenceName = null): string
    {
        if ($this->isActive() && $this->pdo) {
            return $this->pdo->lastInsertID($sequenceName ?? null);
        }

        throw new InvalidCallException('DB Connection is not active.');
    }

    public function getName(): string
    {
        return $this->driver->getDriverName();
    }

    /**
     * @throws Exception
     * @throws InvalidConfigException
     */
    public function getServerVersion(): string
    {
        if ($this->serverVersion === '') {
            /** @psalm-var mixed $version */
            $version = $this->getActivePDO()->getAttribute(PDO::ATTR_SERVER_VERSION);
            $this->serverVersion = is_string($version) ? $version : 'Version could not be determined.';
        }

        return $this->serverVersion;
    }

    public function isActive(): bool
    {
        return $this->pdo !== null;
    }

    /**
     * @throws Exception
     * @throws InvalidConfigException
     */
    public function quoteValue(mixed $value): mixed
    {
        if (is_string($value) === false) {
            return $value;
        }

        return $this->getActivePDO()->quote($value);
    }

    public function setEmulatePrepare(bool $value): void
    {
        $this->emulatePrepare = $value;
    }

    /**
     * Initializes the DB connection.
     *
     * This method is invoked right after the DB connection is established.
     *
     * The default implementation turns on `PDO::ATTR_EMULATE_PREPARES`.
     *
     * if {@see emulatePrepare} is true, and sets the database {@see charset} if it is not empty.
     */
    protected function initConnection(): void
    {
        if ($this->getEmulatePrepare() !== null) {
            $this->driver->attributes([PDO::ATTR_EMULATE_PREPARES => $this->getEmulatePrepare()]);
        }

        $this->pdo = $this->driver->createConnection();
    }
}


1			<?php
2
3			declare(strict_types=1);
4
5			namespace Yiisoft\Db\Driver\PDO;
6
7			use PDO;
8			use PDOException;
9			use Psr\Log\LogLevel;
10			use Yiisoft\Db\Cache\QueryCache;
11			use Yiisoft\Db\Cache\SchemaCache;
12			use Yiisoft\Db\Connection\AbstractConnection;
13			use Yiisoft\Db\Exception\Exception;
14			use Yiisoft\Db\Exception\InvalidCallException;
15			use Yiisoft\Db\Exception\InvalidConfigException;
16			use Yiisoft\Db\QueryBuilder\QueryBuilderInterface;
17			use Yiisoft\Db\Schema\QuoterInterface;
18			use Yiisoft\Db\Schema\SchemaInterface;
19
20			use function array_keys;
21			use function is_string;
22
23			/**
24			* The AbstractConnectionPDO class represents a connection to a database using the PDO (PHP Data Objects) extension. It
25			* provides a set of methods for interacting with a database using PDO, such as executing SQL statements, preparing and
26			* executing statements, and managing transactions.
27			*
28			* The ConnectionPDO class extends from the AbstractConnection class, which is a base class for representing a
29			* connection to a database. It implements the ConnectionInterface, which defines the interface for interacting with a
30			* database connection.
31			*/
32			abstract class AbstractConnectionPDO extends AbstractConnection implements ConnectionPDOInterface
33			{
34			protected PDO\|null $pdo = null;
35			protected string $serverVersion = '';
36			protected bool\|null $emulatePrepare = null;
37			protected QueryBuilderInterface\|null $queryBuilder = null;
38			protected QuoterInterface\|null $quoter = null;
39			protected SchemaInterface\|null $schema = null;
40
41			public function __construct(
42			protected PDODriverInterface $driver,
43			protected QueryCache $queryCache,
44			protected SchemaCache $schemaCache
45			) {
46			parent::__construct($queryCache);
47			}
48
49			/**
50			* Reset the connection after cloning.
51			*/
52			public function __clone()
53			{
54			$this->transaction = null;
55			$this->pdo = null;
56			}
57
58			/**
59			* Close the connection before serializing.
60			*/
61			public function __sleep(): array
62			{
63			$fields = (array) $this;
64
65			unset(
66			$fields["\000*\000" . 'pdo'],
67			$fields["\000*\000" . 'transaction'],
68			$fields["\000*\000" . 'schema']
69			);
70
71			return array_keys($fields);
72			}
73
74			public function open(): void
75			{
76			if ($this->pdo instanceof PDO) {
77			return;
78			}
79
80			if ($this->driver->getDsn() === '') {
81			throw new InvalidConfigException('Connection::dsn cannot be empty.');
82			}
83
84			$token = 'Opening DB connection: ' . $this->driver->getDsn();
85
86			try {
87			$this->logger?->log(LogLevel::INFO, $token);
88			$this->profiler?->begin($token, [__METHOD__]);
89			$this->initConnection();
90			$this->profiler?->end($token, [__METHOD__]);
91			} catch (PDOException $e) {
92			$this->profiler?->end($token, [__METHOD__]);
93			$this->logger?->log(LogLevel::ERROR, $token);
94
95			throw new Exception($e->getMessage(), (array) $e->errorInfo, $e);
96			}
97			}
98
99			public function close(): void
100			{
101			if ($this->pdo !== null) {
102			$this->logger?->log(
103			LogLevel::DEBUG,
104			'Closing DB connection: ' . $this->driver->getDsn() . ' ' . __METHOD__,
105			);
106
107			$this->pdo = null;
108			$this->transaction = null;
109			}
110			}
111
112			public function getCacheKey(): array
113			{
114			return [$this->driver->getDsn(), $this->driver->getUsername()];
115			}
116
117			public function getDriver(): PDODriverInterface
118			{
119			return $this->driver;
120			}
121
122			public function getEmulatePrepare(): bool\|null
123			{
124			return $this->emulatePrepare;
125			}
126
127			public function getPDO(): PDO\|null
128			{
129			return $this->pdo;
130			}
131
132			public function getActivePDO(string\|null $sql = '', bool\|null $forRead = null): PDO
133			{
134			$this->open();
135			$pdo = $this->getPDO();
136
137			if ($pdo === null) {
138			throw new Exception('PDO cannot be initialized.');
139			}
140
141			return $pdo;
142			}
143
144			public function getLastInsertID(string $sequenceName = null): string
145			{
146			if ($this->isActive() && $this->pdo) {
147			return $this->pdo->lastInsertID($sequenceName ?? null);
148			}
149
150			throw new InvalidCallException('DB Connection is not active.');
151			}
152
153			public function getName(): string
154			{
155			return $this->driver->getDriverName();
156			}
157
158			/**
159			* @throws Exception
160			* @throws InvalidConfigException
161			*/
162			public function getServerVersion(): string
163			{
164			if ($this->serverVersion === '') {
165			/** @psalm-var mixed $version */
166			$version = $this->getActivePDO()->getAttribute(PDO::ATTR_SERVER_VERSION);
167			$this->serverVersion = is_string($version) ? $version : 'Version could not be determined.';
168			}
169
170			return $this->serverVersion;
171			}
172
173			public function isActive(): bool
174			{
175			return $this->pdo !== null;
176			}
177
178			/**
179			* @throws Exception
180			* @throws InvalidConfigException
181			*/
182			public function quoteValue(mixed $value): mixed
183			{
184			if (is_string($value) === false) {
185			return $value;
186			}
187
188			return $this->getActivePDO()->quote($value);
189			}
190
191			public function setEmulatePrepare(bool $value): void
192			{
193			$this->emulatePrepare = $value;
194			}
195
196			/**
197			* Initializes the DB connection.
198			*
199			* This method is invoked right after the DB connection is established.
200			*
201			* The default implementation turns on `PDO::ATTR_EMULATE_PREPARES`.
202			*
203			* if {@see emulatePrepare} is true, and sets the database {@see charset} if it is not empty.
204			*/
205			protected function initConnection(): void
206			{
207			if ($this->getEmulatePrepare() !== null) {
208			$this->driver->attributes([PDO::ATTR_EMULATE_PREPARES => $this->getEmulatePrepare()]);
209			}
210
211			$this->pdo = $this->driver->createConnection();
212			}
213			}
214

yiisoft / db

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AbstractConnectionPDO::open() A

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