OracleSchemaManager::dropDatabase() - Code Metrics - Inspection of "Merge pull request #3443 from morozov/phpstan-lvl7" - doctrine/dbal - Measure and Improve Code Quality continuously with Scrutinizer

Failed Conditions

Push — master ( 30b923...92920e )

by Marco

created 2019-02-04 13:06 UTC

OracleSchemaManager::dropDatabase() A

↳ Parent: OracleSchemaManager

Complexity

Conditions	4
Paths	4

Size

Total Lines	23
Code Lines	11

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	10
CRAP Score	4.0119

Importance

Changes

Metric	Value
eloc	11
dl	0
loc	23
ccs	10
cts	11
cp	0.9091
rs	9.9
c	0
b	0
f	0
cc	4
nc	4
nop	1
crap	4.0119

<?php

namespace Doctrine\DBAL\Schema;

use Doctrine\DBAL\DBALException;
use Doctrine\DBAL\Driver\DriverException;
use Doctrine\DBAL\Platforms\OraclePlatform;
use Doctrine\DBAL\Types\Type;
use Throwable;
use const CASE_LOWER;
use function array_change_key_case;
use function array_values;
use function assert;
use function preg_match;
use function sprintf;
use function strpos;
use function strtolower;
use function strtoupper;
use function trim;

/**
 * Oracle Schema Manager.
 */
class OracleSchemaManager extends AbstractSchemaManager
{
    /**
     * {@inheritdoc}
     */
    public function dropDatabase($database)
    {
        try {
            parent::dropDatabase($database);
        } catch (DBALException $exception) {
            $exception = $exception->getPrevious();
            assert($exception instanceof Throwable);

            if (! $exception instanceof DriverException) {
                throw $exception;
            }

            // If we have a error code 1940 (ORA-01940), the drop database operation failed
            // because of active connections on the database.
            // To force dropping the database, we first have to close all active connections
            // on that database and issue the drop database operation again.
            if ($exception->getErrorCode() !== 1940) {
                throw $exception;
            }

            $this->killUserSessions($database);

            parent::dropDatabase($database);
        }
    }

    /**
     * {@inheritdoc}
     */
    protected function _getPortableViewDefinition($view)
    {
        $view = array_change_key_case($view, CASE_LOWER);

        return new View($this->getQuotedIdentifierName($view['view_name']), $view['text']);
    }

    /**
     * {@inheritdoc}
     */
    protected function _getPortableUserDefinition($user)
    {
        $user = array_change_key_case($user, CASE_LOWER);

        return [
            'user' => $user['username'],
        ];
    }

    /**
     * {@inheritdoc}
     */
    protected function _getPortableTableDefinition($table)
    {
        $table = array_change_key_case($table, CASE_LOWER);

        return $this->getQuotedIdentifierName($table['table_name']);
    }

    /**
     * {@inheritdoc}
     *
     * @link http://ezcomponents.org/docs/api/trunk/DatabaseSchema/ezcDbSchemaPgsqlReader.html
     */
    protected function _getPortableTableIndexesList($tableIndexes, $tableName = null)
    {
        $indexBuffer = [];
        foreach ($tableIndexes as $tableIndex) {
            $tableIndex = array_change_key_case($tableIndex, CASE_LOWER);

            $keyName = strtolower($tableIndex['name']);
            $buffer  = [];

            if (strtolower($tableIndex['is_primary']) === 'p') {
                $keyName              = 'primary';
                $buffer['primary']    = true;
                $buffer['non_unique'] = false;
            } else {
                $buffer['primary']    = false;
                $buffer['non_unique'] = ! $tableIndex['is_unique'];
            }
            $buffer['key_name']    = $keyName;
            $buffer['column_name'] = $this->getQuotedIdentifierName($tableIndex['column_name']);
            $indexBuffer[]         = $buffer;
        }

        return parent::_getPortableTableIndexesList($indexBuffer, $tableName);
    }

    /**
     * {@inheritdoc}
     */
    protected function _getPortableTableColumnDefinition($tableColumn)
    {
        $tableColumn = array_change_key_case($tableColumn, CASE_LOWER);

        $dbType = strtolower($tableColumn['data_type']);
        if (strpos($dbType, 'timestamp(') === 0) {
            if (strpos($dbType, 'with time zone')) {
                $dbType = 'timestamptz';
            } else {
                $dbType = 'timestamp';
            }
        }

        $unsigned = $fixed = $precision = $scale = $length = null;

        if (! isset($tableColumn['column_name'])) {
            $tableColumn['column_name'] = '';
        }

        // Default values returned from database sometimes have trailing spaces.
        $tableColumn['data_default'] = trim($tableColumn['data_default']);

        if ($tableColumn['data_default'] === '' || $tableColumn['data_default'] === 'NULL') {
            $tableColumn['data_default'] = null;
        }

        if ($tableColumn['data_default'] !== null) {
            // Default values returned from database are enclosed in single quotes.
            $tableColumn['data_default'] = trim($tableColumn['data_default'], "'");
        }

        if ($tableColumn['data_precision'] !== null) {
            $precision = (int) $tableColumn['data_precision'];
        }

        if ($tableColumn['data_scale'] !== null) {
            $scale = (int) $tableColumn['data_scale'];
        }

        $type                    = $this->_platform->getDoctrineTypeMapping($dbType);
        $type                    = $this->extractDoctrineTypeFromComment($tableColumn['comments'], $type);
        $tableColumn['comments'] = $this->removeDoctrineTypeFromComment($tableColumn['comments'], $type);

        switch ($dbType) {
            case 'number':
                if ($precision === 20 && $scale === 0) {
                    $type = 'bigint';
                } elseif ($precision === 5 && $scale === 0) {
                    $type = 'smallint';
                } elseif ($precision === 1 && $scale === 0) {
                    $type = 'boolean';
                } elseif ($scale > 0) {
                    $type = 'decimal';
                }

                break;
            case 'varchar':
            case 'varchar2':
            case 'nvarchar2':
                $length = $tableColumn['char_length'];
                $fixed  = false;
                break;
            case 'char':
            case 'nchar':
                $length = $tableColumn['char_length'];
                $fixed  = true;
                break;
        }

        $options = [
            'notnull'    => (bool) ($tableColumn['nullable'] === 'N'),
            'fixed'      => (bool) $fixed,
            'unsigned'   => (bool) $unsigned,
            'default'    => $tableColumn['data_default'],
            'length'     => $length,
            'precision'  => $precision,
            'scale'      => $scale,
            'comment'    => isset($tableColumn['comments']) && $tableColumn['comments'] !== ''
                ? $tableColumn['comments']
                : null,
        ];

        return new Column($this->getQuotedIdentifierName($tableColumn['column_name']), Type::getType($type), $options);
    }

    /**
     * {@inheritdoc}
     */
    protected function _getPortableTableForeignKeysList($tableForeignKeys)
    {
        $list = [];
        foreach ($tableForeignKeys as $value) {
            $value = array_change_key_case($value, CASE_LOWER);
            if (! isset($list[$value['constraint_name']])) {
                if ($value['delete_rule'] === 'NO ACTION') {
                    $value['delete_rule'] = null;
                }

                $list[$value['constraint_name']] = [
                    'name' => $this->getQuotedIdentifierName($value['constraint_name']),
                    'local' => [],
                    'foreign' => [],
                    'foreignTable' => $value['references_table'],
                    'onDelete' => $value['delete_rule'],
                ];
            }

            $localColumn   = $this->getQuotedIdentifierName($value['local_column']);
            $foreignColumn = $this->getQuotedIdentifierName($value['foreign_column']);

            $list[$value['constraint_name']]['local'][$value['position']]   = $localColumn;
            $list[$value['constraint_name']]['foreign'][$value['position']] = $foreignColumn;
        }

        $result = [];
        foreach ($list as $constraint) {
            $result[] = new ForeignKeyConstraint(
                array_values($constraint['local']),
                $this->getQuotedIdentifierName($constraint['foreignTable']),
                array_values($constraint['foreign']),
                $this->getQuotedIdentifierName($constraint['name']),
                ['onDelete' => $constraint['onDelete']]
            );
        }

        return $result;
    }

    /**
     * {@inheritdoc}
     */
    protected function _getPortableSequenceDefinition($sequence)
    {
        $sequence = array_change_key_case($sequence, CASE_LOWER);

        return new Sequence(
            $this->getQuotedIdentifierName($sequence['sequence_name']),
            (int) $sequence['increment_by'],
            (int) $sequence['min_value']
        );
    }

    /**
     * {@inheritdoc}
     */
    protected function _getPortableFunctionDefinition($function)
    {
        $function = array_change_key_case($function, CASE_LOWER);

        return $function['name'];
    }

    /**
     * {@inheritdoc}
     */
    protected function _getPortableDatabaseDefinition($database)
    {
        $database = array_change_key_case($database, CASE_LOWER);

        return $database['username'];
    }

    /**
     * {@inheritdoc}
     */
    public function createDatabase($database = null)
    {
        if ($database === null) {
            $database = $this->_conn->getDatabase();
        }

        $params   = $this->_conn->getParams();
        $username = $database;
        $password = $params['password'];

        $query = 'CREATE USER ' . $username . ' IDENTIFIED BY ' . $password;
        $this->_conn->executeUpdate($query);

        $query = 'GRANT DBA TO ' . $username;
        $this->_conn->executeUpdate($query);
    }

    /**
     * @param string $table
     *
     * @return bool
     */
    public function dropAutoincrement($table)
    {
        assert($this->_platform instanceof OraclePlatform);

        $sql = $this->_platform->getDropAutoincrementSql($table);
        foreach ($sql as $query) {
            $this->_conn->executeUpdate($query);
        }

        return true;
    }

    /**
     * {@inheritdoc}
     */
    public function dropTable($name)
    {
        $this->tryMethod('dropAutoincrement', $name);

        parent::dropTable($name);
    }

    /**
     * Returns the quoted representation of the given identifier name.
     *
     * Quotes non-uppercase identifiers explicitly to preserve case
     * and thus make references to the particular identifier work.
     *
     * @param string $identifier The identifier to quote.
     *
     * @return string The quoted identifier.
     */
    private function getQuotedIdentifierName($identifier)
    {
        if (preg_match('/[a-z]/', $identifier)) {
            return $this->_platform->quoteIdentifier($identifier);
        }

        return $identifier;
    }

    /**
     * Kills sessions connected with the given user.
     *
     * This is useful to force DROP USER operations which could fail because of active user sessions.
     *
     * @param string $user The name of the user to kill sessions for.
     *
     * @return void
     */
    private function killUserSessions($user)
    {
        $sql = <<<SQL
SELECT
    s.sid,
    s.serial#
FROM
    gv\$session s,
    gv\$process p
WHERE
    s.username = ?
    AND p.addr(+) = s.paddr
SQL;

        $activeUserSessions = $this->_conn->fetchAll($sql, [strtoupper($user)]);

        foreach ($activeUserSessions as $activeUserSession) {
            $activeUserSession = array_change_key_case($activeUserSession, CASE_LOWER);

            $this->_execSql(
                sprintf(
                    "ALTER SYSTEM KILL SESSION '%s, %s' IMMEDIATE",
                    $activeUserSession['sid'],
                    $activeUserSession['serial#']
                )
            );
        }
    }
}


1		<?php
2
3		namespace Doctrine\DBAL\Schema;
4
5		use Doctrine\DBAL\DBALException;
6		use Doctrine\DBAL\Driver\DriverException;
7		use Doctrine\DBAL\Platforms\OraclePlatform;
8		use Doctrine\DBAL\Types\Type;
9		use Throwable;
10		use const CASE_LOWER;
11		use function array_change_key_case;
12		use function array_values;
13		use function assert;
14		use function preg_match;
15		use function sprintf;
16		use function strpos;
17		use function strtolower;
18		use function strtoupper;
19		use function trim;
20
21		/**
22		* Oracle Schema Manager.
23		*/
24		class OracleSchemaManager extends AbstractSchemaManager
25		{
26		/**
27		* {@inheritdoc}
28		*/
29	4	public function dropDatabase($database)
30		{
31		try {
32	4	parent::dropDatabase($database);
33	4	} catch (DBALException $exception) {
34	4	$exception = $exception->getPrevious();
35	4	assert($exception instanceof Throwable);
36
37	4	if (! $exception instanceof DriverException) {
38		throw $exception;
39		}
40
41		// If we have a error code 1940 (ORA-01940), the drop database operation failed
42		// because of active connections on the database.
43		// To force dropping the database, we first have to close all active connections
44		// on that database and issue the drop database operation again.
45	4	if ($exception->getErrorCode() !== 1940) {
46	4	throw $exception;
47		}
48
49	2	$this->killUserSessions($database);
50
51	2	parent::dropDatabase($database);
52		}
53	2	}
54
55		/**
56		* {@inheritdoc}
57		*/
58	2	protected function _getPortableViewDefinition($view)
59		{
60	2	$view = array_change_key_case($view, CASE_LOWER);
61
62	2	return new View($this->getQuotedIdentifierName($view['view_name']), $view['text']);
63		}
64
65		/**
66		* {@inheritdoc}
67		*/
68		protected function _getPortableUserDefinition($user)
69		{
70		$user = array_change_key_case($user, CASE_LOWER);
71
72		return [
73		'user' => $user['username'],
74		];
75		}
76
77		/**
78		* {@inheritdoc}
79		*/
80	126	protected function _getPortableTableDefinition($table)
81		{
82	126	$table = array_change_key_case($table, CASE_LOWER);
83
84	126	return $this->getQuotedIdentifierName($table['table_name']);
85		}
86
87		/**
88		* {@inheritdoc}
89		*
90		* @link http://ezcomponents.org/docs/api/trunk/DatabaseSchema/ezcDbSchemaPgsqlReader.html
91		*/
92	56	protected function _getPortableTableIndexesList($tableIndexes, $tableName = null)
93		{
94	56	$indexBuffer = [];
95	56	foreach ($tableIndexes as $tableIndex) {
96	30	$tableIndex = array_change_key_case($tableIndex, CASE_LOWER);
97
98	30	$keyName = strtolower($tableIndex['name']);
99	30	$buffer = [];
100
101	30	if (strtolower($tableIndex['is_primary']) === 'p') {
102	26	$keyName = 'primary';
103	26	$buffer['primary'] = true;
104	26	$buffer['non_unique'] = false;
105		} else {
106	24	$buffer['primary'] = false;
107	24	$buffer['non_unique'] = ! $tableIndex['is_unique'];
108		}
109	30	$buffer['key_name'] = $keyName;
110	30	$buffer['column_name'] = $this->getQuotedIdentifierName($tableIndex['column_name']);
111	30	$indexBuffer[] = $buffer;
112		}
113
114	56	return parent::_getPortableTableIndexesList($indexBuffer, $tableName);
115		}
116
117		/**
118		* {@inheritdoc}
119		*/
120	70	protected function _getPortableTableColumnDefinition($tableColumn)
121		{
122	70	$tableColumn = array_change_key_case($tableColumn, CASE_LOWER);
123
124	70	$dbType = strtolower($tableColumn['data_type']);
125	70	if (strpos($dbType, 'timestamp(') === 0) {
126	14	if (strpos($dbType, 'with time zone')) {
127	6	$dbType = 'timestamptz';
128		} else {
129	14	$dbType = 'timestamp';
130		}
131		}
132
133	70	$unsigned = $fixed = $precision = $scale = $length = null;
134
135	70	if (! isset($tableColumn['column_name'])) {
136		$tableColumn['column_name'] = '';
137		}
138
139		// Default values returned from database sometimes have trailing spaces.
140	70	$tableColumn['data_default'] = trim($tableColumn['data_default']);
141
142	70	if ($tableColumn['data_default'] === '' \|\| $tableColumn['data_default'] === 'NULL') {
143	64	$tableColumn['data_default'] = null;
144		}
145
146	70	if ($tableColumn['data_default'] !== null) {
147		// Default values returned from database are enclosed in single quotes.
148	20	$tableColumn['data_default'] = trim($tableColumn['data_default'], "'");
149		}
150
151	70	if ($tableColumn['data_precision'] !== null) {
152	62	$precision = (int) $tableColumn['data_precision'];
153		}
154
155	70	if ($tableColumn['data_scale'] !== null) {
156	64	$scale = (int) $tableColumn['data_scale'];
157		}
158
159	70	$type = $this->_platform->getDoctrineTypeMapping($dbType);
160	70	$type = $this->extractDoctrineTypeFromComment($tableColumn['comments'], $type);
161	70	$tableColumn['comments'] = $this->removeDoctrineTypeFromComment($tableColumn['comments'], $type);
162
163	70	switch ($dbType) {
164	70	case 'number':
165	62	if ($precision === 20 && $scale === 0) {
166		$type = 'bigint';
167	62	} elseif ($precision === 5 && $scale === 0) {
168		$type = 'smallint';
169	62	} elseif ($precision === 1 && $scale === 0) {
170	8	$type = 'boolean';
171	60	} elseif ($scale > 0) {
172	10	$type = 'decimal';
173		}
174
175	62	break;
176	38	case 'varchar':
177	38	case 'varchar2':
178	28	case 'nvarchar2':
179	22	$length = $tableColumn['char_length'];
180	22	$fixed = false;
181	22	break;
182	28	case 'char':
183	24	case 'nchar':
184	10	$length = $tableColumn['char_length'];
185	10	$fixed = true;
186	10	break;
187		}
188
189		$options = [
190	70	'notnull' => (bool) ($tableColumn['nullable'] === 'N'),
191	70	'fixed' => (bool) $fixed,
192	70	'unsigned' => (bool) $unsigned,
193	70	'default' => $tableColumn['data_default'],
194	70	'length' => $length,
195	70	'precision' => $precision,
196	70	'scale' => $scale,
197	70	'comment' => isset($tableColumn['comments']) && $tableColumn['comments'] !== ''
198	34	? $tableColumn['comments']
199		: null,
200		];
201
202	70	return new Column($this->getQuotedIdentifierName($tableColumn['column_name']), Type::getType($type), $options);
203		}
204
205		/**
206		* {@inheritdoc}
207		*/
208	50	protected function _getPortableTableForeignKeysList($tableForeignKeys)
209		{
210	50	$list = [];
211	50	foreach ($tableForeignKeys as $value) {
212	18	$value = array_change_key_case($value, CASE_LOWER);
213	18	if (! isset($list[$value['constraint_name']])) {
214	18	if ($value['delete_rule'] === 'NO ACTION') {
215	16	$value['delete_rule'] = null;
216		}
217
218	18	$list[$value['constraint_name']] = [
219	18	'name' => $this->getQuotedIdentifierName($value['constraint_name']),
220		'local' => [],
221		'foreign' => [],
222	18	'foreignTable' => $value['references_table'],
223	18	'onDelete' => $value['delete_rule'],
224		];
225		}
226
227	18	$localColumn = $this->getQuotedIdentifierName($value['local_column']);
228	18	$foreignColumn = $this->getQuotedIdentifierName($value['foreign_column']);
229
230	18	$list[$value['constraint_name']]['local'][$value['position']] = $localColumn;
231	18	$list[$value['constraint_name']]['foreign'][$value['position']] = $foreignColumn;
232		}
233
234	50	$result = [];
235	50	foreach ($list as $constraint) {
236	18	$result[] = new ForeignKeyConstraint(
237	18	array_values($constraint['local']),
238	18	$this->getQuotedIdentifierName($constraint['foreignTable']),
239	18	array_values($constraint['foreign']),
240	18	$this->getQuotedIdentifierName($constraint['name']),
241	18	['onDelete' => $constraint['onDelete']]
242		);
243		}
244
245	50	return $result;
246		}
247
248		/**
249		* {@inheritdoc}
250		*/
251	9	protected function _getPortableSequenceDefinition($sequence)
252		{
253	9	$sequence = array_change_key_case($sequence, CASE_LOWER);
254
255	9	return new Sequence(
256	9	$this->getQuotedIdentifierName($sequence['sequence_name']),
257	9	(int) $sequence['increment_by'],
258	9	(int) $sequence['min_value']
259		);
260		}
261
262		/**
263		* {@inheritdoc}
264		*/
265		protected function _getPortableFunctionDefinition($function)
266		{
267		$function = array_change_key_case($function, CASE_LOWER);
268
269		return $function['name'];
270		}
271
272		/**
273		* {@inheritdoc}
274		*/
275	4	protected function _getPortableDatabaseDefinition($database)
276		{
277	4	$database = array_change_key_case($database, CASE_LOWER);
278
279	4	return $database['username'];
280		}
281
282		/**
283		* {@inheritdoc}
284		*/
285	4	public function createDatabase($database = null)
286		{
287	4	if ($database === null) {
288		$database = $this->_conn->getDatabase();
289		}
290
291	4	$params = $this->_conn->getParams();
292	4	$username = $database;
293	4	$password = $params['password'];
294
295	4	$query = 'CREATE USER ' . $username . ' IDENTIFIED BY ' . $password;
296	4	$this->_conn->executeUpdate($query);
297
298	4	$query = 'GRANT DBA TO ' . $username;
299	4	$this->_conn->executeUpdate($query);
300	4	}
301
302		/**
303		* @param string $table
304		*
305		* @return bool
306		*/
307	218	public function dropAutoincrement($table)
308		{
309	218	assert($this->_platform instanceof OraclePlatform);
310
311	218	$sql = $this->_platform->getDropAutoincrementSql($table);
312	218	foreach ($sql as $query) {
313	218	$this->_conn->executeUpdate($query);
314		}
315
316		return true;
317		}
318
319		/**
320		* {@inheritdoc}
321		*/
322	218	public function dropTable($name)
323		{
324	218	$this->tryMethod('dropAutoincrement', $name);
325
326	218	parent::dropTable($name);
327	126	}
328
329		/**
330		* Returns the quoted representation of the given identifier name.
331		*
332		* Quotes non-uppercase identifiers explicitly to preserve case
333		* and thus make references to the particular identifier work.
334		*
335		* @param string $identifier The identifier to quote.
336		*
337		* @return string The quoted identifier.
338		*/
339	131	private function getQuotedIdentifierName($identifier)
340		{
341	131	if (preg_match('/[a-z]/', $identifier)) {
342	103	return $this->_platform->quoteIdentifier($identifier);
343		}
344
345	131	return $identifier;
346		}
347
348		/**
349		* Kills sessions connected with the given user.
350		*
351		* This is useful to force DROP USER operations which could fail because of active user sessions.
352		*
353		* @param string $user The name of the user to kill sessions for.
354		*
355		* @return void
356		*/
357	2	private function killUserSessions($user)
358		{
359		$sql = <<<SQL
360	2	SELECT
361		s.sid,
362		s.serial#
363		FROM
364		gv\$session s,
365		gv\$process p
366		WHERE
367		s.username = ?
368		AND p.addr(+) = s.paddr
369		SQL;
370
371	2	$activeUserSessions = $this->_conn->fetchAll($sql, [strtoupper($user)]);
372
373	2	foreach ($activeUserSessions as $activeUserSession) {
374	2	$activeUserSession = array_change_key_case($activeUserSession, CASE_LOWER);
375
376	2	$this->_execSql(
377	2	sprintf(
378	2	"ALTER SYSTEM KILL SESSION '%s, %s' IMMEDIATE",
379	2	$activeUserSession['sid'],
380	2	$activeUserSession['serial#']
381		)
382		);
383		}
384	2	}
385		}
386

doctrine / dbal

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OracleSchemaManager::dropDatabase() A

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