CommandPDOSqlite::__construct() - Code Metrics - Inspection of "Step 4. Remove PDO (work with internalQuery)" - yiisoft/db-sqlite - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — dev (#89)

by Def

created 2022-03-26 18:12 UTC

CommandPDOSqlite::__construct() A

↳ Parent: CommandPDOSqlite

Complexity

Conditions	1
Paths	1

Size

Total Lines	3
Code Lines	1

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	2
CRAP Score	1

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
eloc	1
dl	0
loc	3
ccs	2
cts	2
cp	1
rs	10
c	1
b	0
f	0
cc	1
nc	1
nop	2
crap	1

<?php

declare(strict_types=1);

namespace Yiisoft\Db\Sqlite\PDO;

use PDOException;
use Throwable;
use Yiisoft\Db\Cache\QueryCache;
use Yiisoft\Db\Command\CommandPDO;
use Yiisoft\Db\Connection\ConnectionPDOInterface;
use Yiisoft\Db\Exception\ConvertException;
use Yiisoft\Db\Exception\Exception;
use Yiisoft\Db\Exception\InvalidArgumentException;
use Yiisoft\Db\Query\QueryBuilderInterface;
filter:
    dependency_paths: ["lib/*"]
use Yiisoft\Db\Sqlite\SqlToken;
use Yiisoft\Db\Sqlite\SqlTokenizer;
use Yiisoft\Strings\StringHelper;

use function array_pop;
use function count;
use function ltrim;
use function preg_match_all;
use function strpos;

final class CommandPDOSqlite extends CommandPDO
{
    public function __construct(private ConnectionPDOInterface $db, QueryCache $queryCache)
    {
        parent::__construct($queryCache);
    }

    /**
     * @inheritDoc
     */
    public function insertEx(string $table, array $columns): bool|array
    {
        $params = [];
        $sql = $this->db->getQueryBuilder()->insertEx($table, $columns, $params);
        $this->setSql($sql)->bindValues($params);

        if (!$this->execute()) {
            return false;
        }

        $tableSchema = $this->queryBuilder()->schema()->getTableSchema($table);
        $tablePrimaryKeys = $tableSchema?->getPrimaryKey() ?? [];

        $result = [];
        foreach ($tablePrimaryKeys as $name) {
            if ($tableSchema?->getColumn($name)?->isAutoIncrement()) {
                $result[$name] = $this->queryBuilder()->schema()->getLastInsertID((string) $tableSchema?->getSequenceName());
                continue;
            }

            /** @var mixed */
            $result[$name] = $columns[$name] ?? $tableSchema?->getColumn($name)?->getDefaultValue();
        }

        return $result;
    }

    public function queryBuilder(): QueryBuilderInterface
    {
        return $this->db->getQueryBuilder();
    }

    public function prepare(?bool $forRead = null): void
    {
        if (isset($this->pdoStatement)) {
            $this->bindPendingParams();

            return;
        }

        $sql = $this->getSql();

        if ($this->db->getTransaction()) {
            /** master is in a transaction. use the same connection. */
            $forRead = false;
        }

        if ($forRead || ($forRead === null && $this->db->getSchema()->isReadQuery($sql))) {
            $pdo = $this->db->getSlavePdo();
        } else {
            $pdo = $this->db->getMasterPdo();
        }

        try {
            $this->pdoStatement = $pdo?->prepare($sql);
            $this->bindPendingParams();
        } catch (PDOException $e) {
            $message = $e->getMessage() . "\nFailed to prepare SQL: $sql";
            /** @var array|null */
            $errorInfo = $e->errorInfo ?? null;

            throw new Exception($message, $errorInfo, $e);
        }
    }

    /**
     * Executes the SQL statement.
     *
     * This method should only be used for executing non-query SQL statement, such as `INSERT`, `DELETE`, `UPDATE` SQLs.
     * No result set will be returned.
     *
     * @throws Exception|Throwable execution failed.
     *
     * @return int number of rows affected by the execution.
     */
    public function execute(): int
    {
        $sql = $this->getSql();

        /** @var array<string, string> */
        $params = $this->params;

        $statements = $this->splitStatements($sql, $params);

        if ($statements === false) {

            return parent::execute();
        }

        $result = 0;

        /** @psalm-var array<array-key, array<array-key, string|array>> $statements */
        foreach ($statements as $statement) {
            [$statementSql, $statementParams] = $statement;
            $statementSql = is_string($statementSql) ? $statementSql : '';
            $statementParams = is_array($statementParams) ? $statementParams : [];
            $this->setSql($statementSql)->bindValues($statementParams);
            $result = parent::execute();
        }

        $this->setSql($sql)->bindValues($params);

        return $result;
    }

    protected function getCacheKey(int $queryMode, string $rawSql): array
    {
        return [
            __CLASS__,
            $queryMode,
            $this->db->getDriver()->getDsn(),
            $this->db->getDriver()->getUsername(),
            $rawSql,
        ];
    }

    protected function internalExecute(?string $rawSql): void
    {
        $attempt = 0;

        while (true) {
            try {
                if (
                    ++$attempt === 1
                    && $this->isolationLevel !== null
                    && $this->db->getTransaction() === null
                ) {
                    $this->db->transaction(fn (?string $rawSql) => $this->internalExecute($rawSql), $this->isolationLevel);
                } else {
                    $this->pdoStatement?->execute();
                }
                break;
            } catch (PDOException $e) {
                $rawSql = $rawSql ?: $this->getRawSql();
                $e = (new ConvertException($e, $rawSql))->run();

                if ($this->retryHandler === null || !($this->retryHandler)($e, $attempt)) {
                    throw $e;
                }
            }
        }
    }

    /**
     * Performs the actual DB query of a SQL statement.
     *
     * @param int $queryMode - return results as DataReader
     *
     * @throws Exception|Throwable if the query causes any problem.
     *
     * @return mixed the method execution result.
     */
    protected function queryInternal(int $queryMode): mixed
    {
        $sql = $this->getSql();

        /** @var array<string, string> */
        $params = $this->params;

        $statements = $this->splitStatements($sql, $params);

        if ($statements === false || $statements === []) {

            return parent::queryInternal($queryMode);
        }

        [$lastStatementSql, $lastStatementParams] = array_pop($statements);

        /**
         * @psalm-var array<array-key, array> $statements
         */
        foreach ($statements as $statement) {
            /**
             * @var string $statementSql
             * @var array $statementParams
             */
            [$statementSql, $statementParams] = $statement;
            $this->setSql($statementSql)->bindValues($statementParams);
            parent::execute();
        }

        $this->setSql($lastStatementSql)->bindValues($lastStatementParams);

        /** @var string */
        $result = parent::queryInternal($queryMode);

        $this->setSql($sql)->bindValues($params);

        return $result;
    }

    /**
     * Splits the specified SQL codes into individual SQL statements and returns them or `false` if there's a single
     * statement.
     *
     * @param string $sql
     * @param array $params
     *
     * @throws InvalidArgumentException
     *
     * @return array|bool (array|string)[][]|bool
     *
     * @psalm-param array<string, string> $params
     * @psalm-return false|list<array{0: string, 1: array}>
     */
    private function splitStatements(string $sql, array $params): bool|array
    {
        $semicolonIndex = strpos($sql, ';');

        if ($semicolonIndex === false || $semicolonIndex === StringHelper::byteLength($sql) - 1) {
            return false;
        }

        $tokenizer = new SqlTokenizer($sql);

        $codeToken = $tokenizer->tokenize();

        if (count($codeToken->getChildren()) === 1) {
            return false;
        }

        $statements = [];

        foreach ($codeToken->getChildren() as $statement) {
            $statements[] = [$statement->getSql(), $this->extractUsedParams($statement, $params)];
        }

        return $statements;
    }

    /**
     * Returns named bindings used in the specified statement token.
     *
     * @param SqlToken $statement
     * @param array $params
     *
     * @return array
     *
     * @psalm-param array<string, string> $params
     */
    private function extractUsedParams(SqlToken $statement, array $params): array
    {
        preg_match_all('/(?P<placeholder>[:][a-zA-Z0-9_]+)/', $statement->getSql(), $matches, PREG_SET_ORDER);

        $result = [];

        foreach ($matches as $match) {
            $phName = ltrim($match['placeholder'], ':');
            if (isset($params[$phName])) {
                $result[$phName] = $params[$phName];
            } elseif (isset($params[':' . $phName])) {
                $result[':' . $phName] = $params[':' . $phName];
            }
        }

        return $result;
    }
}


1		<?php
2
3		declare(strict_types=1);
4
5		namespace Yiisoft\Db\Sqlite\PDO;
6
7		use PDOException;
8		use Throwable;
9		use Yiisoft\Db\Cache\QueryCache;
10		use Yiisoft\Db\Command\CommandPDO;
11		use Yiisoft\Db\Connection\ConnectionPDOInterface;
12		use Yiisoft\Db\Exception\ConvertException;
13		use Yiisoft\Db\Exception\Exception;
14		use Yiisoft\Db\Exception\InvalidArgumentException;
15		use Yiisoft\Db\Query\QueryBuilderInterface;
		0 ignored issues – show Bug introduced 2022-02-12 13:04 UTC by Report Bug Copy Issue Report The type `Yiisoft\Db\Query\QueryBuilderInterface` was not found. Maybe you did not declare it correctly or list all dependencies? The issue could also be caused by a filter entry in the build configuration. If the path has been excluded in your configuration, e.g. `excluded_paths: ["lib/"]`, you can move it to the dependency path list as follows: filter: dependency_paths: ["lib/"] For further information see https://scrutinizer-ci.com/docs/tools/php/php-scrutinizer/#list-dependency-paths Loading history...
16		use Yiisoft\Db\Sqlite\SqlToken;
17		use Yiisoft\Db\Sqlite\SqlTokenizer;
18		use Yiisoft\Strings\StringHelper;
19
20		use function array_pop;
21		use function count;
22		use function ltrim;
23		use function preg_match_all;
24		use function strpos;
25
26		final class CommandPDOSqlite extends CommandPDO
27		{
28	324	public function __construct(private ConnectionPDOInterface $db, QueryCache $queryCache)
29		{
30	324	parent::__construct($queryCache);
31		}
32
33		/**
34		* @inheritDoc
35		*/
36	1	public function insertEx(string $table, array $columns): bool\|array
37		{
38	1	$params = [];
39	1	$sql = $this->db->getQueryBuilder()->insertEx($table, $columns, $params);
40	1	$this->setSql($sql)->bindValues($params);
41
42	1	if (!$this->execute()) {
43		return false;
44		}
45
46	1	$tableSchema = $this->queryBuilder()->schema()->getTableSchema($table);
47	1	$tablePrimaryKeys = $tableSchema?->getPrimaryKey() ?? [];
48
49	1	$result = [];
50	1	foreach ($tablePrimaryKeys as $name) {
51	1	if ($tableSchema?->getColumn($name)?->isAutoIncrement()) {
52	1	$result[$name] = $this->queryBuilder()->schema()->getLastInsertID((string) $tableSchema?->getSequenceName());
53	1	continue;
54		}
55
56		/** @var mixed */
57		$result[$name] = $columns[$name] ?? $tableSchema?->getColumn($name)?->getDefaultValue();
58		}
59
60	1	return $result;
61		}
62
63	173	public function queryBuilder(): QueryBuilderInterface
64		{
65	173	return $this->db->getQueryBuilder();
66		}
67
68	159	public function prepare(?bool $forRead = null): void
69		{
70	159	if (isset($this->pdoStatement)) {
71	4	$this->bindPendingParams();
72
73	4	return;
74		}
75
76	159	$sql = $this->getSql();
77
78	159	if ($this->db->getTransaction()) {
79		/** master is in a transaction. use the same connection. */
80	5	$forRead = false;
81		}
82
83	159	if ($forRead \|\| ($forRead === null && $this->db->getSchema()->isReadQuery($sql))) {
84	154	$pdo = $this->db->getSlavePdo();
85		} else {
86	48	$pdo = $this->db->getMasterPdo();
87		}
88
89		try {
90	159	$this->pdoStatement = $pdo?->prepare($sql);
91	159	$this->bindPendingParams();
92	4	} catch (PDOException $e) {
93	4	$message = $e->getMessage() . "\nFailed to prepare SQL: $sql";
94		/** @var array\|null */
95	4	$errorInfo = $e->errorInfo ?? null;
96
97	4	throw new Exception($message, $errorInfo, $e);
98		}
99		}
100
101		/**
102		* Executes the SQL statement.
103		*
104		* This method should only be used for executing non-query SQL statement, such as `INSERT`, `DELETE`, `UPDATE` SQLs.
105		* No result set will be returned.
106		*
107		* @throws Exception\|Throwable execution failed.
108		*
109		* @return int number of rows affected by the execution.
110		*/
111	47	public function execute(): int
112		{
113	47	$sql = $this->getSql();
114
115		/** @var array<string, string> */
116	47	$params = $this->params;
117
118	47	$statements = $this->splitStatements($sql, $params);
119
120	47	if ($statements === false) {
		0 ignored issues – show introduced 2022-02-12 13:04 UTC by Report Bug Copy Issue Report The condition `$statements === false` is always `true`. Loading history...
121	42	return parent::execute();
122		}
123
124	5	$result = 0;
125
126		/** @psalm-var array<array-key, array<array-key, string\|array>> $statements */
127	5	foreach ($statements as $statement) {
128	5	[$statementSql, $statementParams] = $statement;
129	5	$statementSql = is_string($statementSql) ? $statementSql : '';
130	5	$statementParams = is_array($statementParams) ? $statementParams : [];
131	5	$this->setSql($statementSql)->bindValues($statementParams);
132	5	$result = parent::execute();
133		}
134
135	5	$this->setSql($sql)->bindValues($params);
136
137	5	return $result;
138		}
139
140	151	protected function getCacheKey(int $queryMode, string $rawSql): array
141		{
142		return [
143	151	__CLASS__,
144		$queryMode,
145	151	$this->db->getDriver()->getDsn(),
146	151	$this->db->getDriver()->getUsername(),
147		$rawSql,
148		];
149		}
150
151	158	protected function internalExecute(?string $rawSql): void
152		{
153	158	$attempt = 0;
154
155	158	while (true) {
156		try {
157		if (
158	158	++$attempt === 1
159	158	&& $this->isolationLevel !== null
160	158	&& $this->db->getTransaction() === null
161		) {
162		$this->db->transaction(fn (?string $rawSql) => $this->internalExecute($rawSql), $this->isolationLevel);
163		} else {
164	158	$this->pdoStatement?->execute();
165		}
166	158	break;
167	2	} catch (PDOException $e) {
168	2	$rawSql = $rawSql ?: $this->getRawSql();
169	2	$e = (new ConvertException($e, $rawSql))->run();
170
171	2	if ($this->retryHandler === null \|\| !($this->retryHandler)($e, $attempt)) {
172	2	throw $e;
173		}
174		}
175		}
176		}
177
178		/**
179		* Performs the actual DB query of a SQL statement.
180		*
181		* @param int $queryMode - return results as DataReader
182		*
183		* @throws Exception\|Throwable if the query causes any problem.
184		*
185		* @return mixed the method execution result.
186		*/
187	158	protected function queryInternal(int $queryMode): mixed
188		{
189	158	$sql = $this->getSql();
190
191		/** @var array<string, string> */
192	158	$params = $this->params;
193
194	158	$statements = $this->splitStatements($sql, $params);
195
196	158	if ($statements === false \|\| $statements === []) {
		0 ignored issues – show introduced 2022-02-12 13:04 UTC by Report Bug Copy Issue Report The condition `$statements === false` is always `true`. Loading history...
197	158	return parent::queryInternal($queryMode);
198		}
199
200	1	[$lastStatementSql, $lastStatementParams] = array_pop($statements);
201
202		/**
203		* @psalm-var array<array-key, array> $statements
204		*/
205	1	foreach ($statements as $statement) {
206		/**
207		* @var string $statementSql
208		* @var array $statementParams
209		*/
210	1	[$statementSql, $statementParams] = $statement;
211	1	$this->setSql($statementSql)->bindValues($statementParams);
212	1	parent::execute();
213		}
214
215	1	$this->setSql($lastStatementSql)->bindValues($lastStatementParams);
216
217		/** @var string */
218	1	$result = parent::queryInternal($queryMode);
219
220	1	$this->setSql($sql)->bindValues($params);
221
222	1	return $result;
223		}
224
225		/**
226		* Splits the specified SQL codes into individual SQL statements and returns them or `false` if there's a single
227		* statement.
228		*
229		* @param string $sql
230		* @param array $params
231		*
232		* @throws InvalidArgumentException
233		*
234		* @return array\|bool (array\|string)[][]\|bool
235		*
236		* @psalm-param array<string, string> $params
237		* @psalm-return false\|list<array{0: string, 1: array}>
238		*/
239	158	private function splitStatements(string $sql, array $params): bool\|array
240		{
241	158	$semicolonIndex = strpos($sql, ';');
242
243	158	if ($semicolonIndex === false \|\| $semicolonIndex === StringHelper::byteLength($sql) - 1) {
244	158	return false;
245		}
246
247	5	$tokenizer = new SqlTokenizer($sql);
248
249	5	$codeToken = $tokenizer->tokenize();
250
251	5	if (count($codeToken->getChildren()) === 1) {
252		return false;
253		}
254
255	5	$statements = [];
256
257	5	foreach ($codeToken->getChildren() as $statement) {
258	5	$statements[] = [$statement->getSql(), $this->extractUsedParams($statement, $params)];
259		}
260
261	5	return $statements;
262		}
263
264		/**
265		* Returns named bindings used in the specified statement token.
266		*
267		* @param SqlToken $statement
268		* @param array $params
269		*
270		* @return array
271		*
272		* @psalm-param array<string, string> $params
273		*/
274	5	private function extractUsedParams(SqlToken $statement, array $params): array
275		{
276	5	preg_match_all('/(?P<placeholder>[:][a-zA-Z0-9_]+)/', $statement->getSql(), $matches, PREG_SET_ORDER);
277
278	5	$result = [];
279
280	5	foreach ($matches as $match) {
281	5	$phName = ltrim($match['placeholder'], ':');
282	5	if (isset($params[$phName])) {
283	1	$result[$phName] = $params[$phName];
284	4	} elseif (isset($params[':' . $phName])) {
285	4	$result[':' . $phName] = $params[':' . $phName];
286		}
287		}
288
289	5	return $result;
290		}
291		}
292

yiisoft / db-sqlite

Pull Request — dev (#89)

CommandPDOSqlite::__construct() A

Complexity

Size

Duplication

Code Coverage

Importance

Duplication Side-by-Side

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