Schema::createSequence() - Code Metrics - Inspection of "Enforce parameter and return value types in the co..." - doctrine/dbal - Measure and Improve Code Quality continuously with Scrutinizer

Failed Conditions

Pull Request — develop (#3348)

by Sergei

created 2019-02-19 07:29 UTC

Schema::createSequence() A

↳ Parent: Schema

Complexity

Conditions	1
Paths	1

Size

Total Lines	6
Code Lines	3

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	4
CRAP Score	1

Importance

Changes

Metric	Value
eloc	3
dl	0
loc	6
ccs	4
cts	4
cp	1
rs	10
c	0
b	0
f	0
cc	1
nc	1
nop	3
crap	1

<?php

namespace Doctrine\DBAL\Schema;

use Doctrine\DBAL\Platforms\AbstractPlatform;
use Doctrine\DBAL\Schema\Visitor\CreateSchemaSqlCollector;
use Doctrine\DBAL\Schema\Visitor\DropSchemaSqlCollector;
use Doctrine\DBAL\Schema\Visitor\NamespaceVisitor;
use Doctrine\DBAL\Schema\Visitor\Visitor;
use function array_keys;
use function assert;
use function is_string;
use function strpos;
use function strtolower;

/**
 * Object representation of a database schema.
 *
 * Different vendors have very inconsistent naming with regard to the concept
 * of a "schema". Doctrine understands a schema as the entity that conceptually
 * wraps a set of database objects such as tables, sequences, indexes and
 * foreign keys that belong to each other into a namespace. A Doctrine Schema
 * has nothing to do with the "SCHEMA" defined as in PostgreSQL, it is more
 * related to the concept of "DATABASE" that exists in MySQL and PostgreSQL.
 *
 * Every asset in the doctrine schema has a name. A name consists of either a
 * namespace.local name pair or just a local unqualified name.
 *
 * The abstraction layer that covers a PostgreSQL schema is the namespace of an
 * database object (asset). A schema can have a name, which will be used as
 * default namespace for the unqualified database objects that are created in
 * the schema.
 *
 * In the case of MySQL where cross-database queries are allowed this leads to
 * databases being "misinterpreted" as namespaces. This is intentional, however
 * the CREATE/DROP SQL visitors will just filter this queries and do not
 * execute them. Only the queries for the currently connected database are
 * executed.
 */
class Schema extends AbstractAsset
{
    /**
     * The namespaces in this schema.
     *
     * @var string[]
     */
    private $namespaces = [];

    /** @var Table[] */
    protected $_tables = [];

    /** @var Sequence[] */
    protected $_sequences = [];

    /** @var SchemaConfig */
    protected $_schemaConfig = false;

    /**
     * @param Table[]    $tables
     * @param Sequence[] $sequences
     * @param string[]   $namespaces
     */
    public function __construct(
        array $tables = [],
        array $sequences = [],
        ?SchemaConfig $schemaConfig = null,
        array $namespaces = []
    ) {
        if ($schemaConfig === null) {
            $schemaConfig = new SchemaConfig();
        }
        $this->_schemaConfig = $schemaConfig;
        $this->_setName($schemaConfig->getName() ?: 'public');

        foreach ($namespaces as $namespace) {
            $this->createNamespace($namespace);
        }

        foreach ($tables as $table) {
            $this->_addTable($table);
        }

        foreach ($sequences as $sequence) {
            $this->_addSequence($sequence);
        }
    }

    public function getName() : string
    {
        $name = parent::getName();
        assert(is_string($name));

        return $name;
    }

    public function hasExplicitForeignKeyIndexes() : bool
    {
        return $this->_schemaConfig->hasExplicitForeignKeyIndexes();
    }

    /**
     * @throws SchemaException
     */
    protected function _addTable(Table $table) : void
    {
        $namespaceName = $table->getNamespaceName();
        $tableName     = $table->getFullQualifiedName($this->getName());

        if (isset($this->_tables[$tableName])) {
            throw SchemaException::tableAlreadyExists($tableName);
        }

        if ($namespaceName !== null
            && ! $table->isInDefaultNamespace($this->getName())
            && ! $this->hasNamespace($namespaceName)) {
            $this->createNamespace($namespaceName);
        }

        $this->_tables[$tableName] = $table;
        $table->setSchemaConfig($this->_schemaConfig);
    }

    /**
     * @throws SchemaException
     */
    protected function _addSequence(Sequence $sequence) : void
    {
        $namespaceName = $sequence->getNamespaceName();
        $seqName       = $sequence->getFullQualifiedName($this->getName());

        if (isset($this->_sequences[$seqName])) {
            throw SchemaException::sequenceAlreadyExists($seqName);
        }

        if ($namespaceName !== null
            && ! $sequence->isInDefaultNamespace($this->getName())
            && ! $this->hasNamespace($namespaceName)) {
            $this->createNamespace($namespaceName);
        }

        $this->_sequences[$seqName] = $sequence;
    }

    /**
     * Returns the namespaces of this schema.
     *
     * @return string[] A list of namespace names.
     */
    public function getNamespaces() : array
    {
        return $this->namespaces;
    }

    /**
     * Gets all tables of this schema.
     *
     * @return Table[]
     */
    public function getTables() : array
    {
        return $this->_tables;
    }

    /**
     * @throws SchemaException
     */
    public function getTable(string $tableName) : Table
    {
        $tableName = $this->getFullQualifiedAssetName($tableName);
        if (! isset($this->_tables[$tableName])) {
            throw SchemaException::tableDoesNotExist($tableName);
        }

        return $this->_tables[$tableName];
    }

    private function getFullQualifiedAssetName(string $name) : string
    {
        $name = $this->getUnquotedAssetName($name);

        if (strpos($name, '.') === false) {
            $name = $this->getName() . '.' . $name;
        }

        return strtolower($name);
    }

    /**
     * Returns the unquoted representation of a given asset name.
     *
     * @param string $assetName Quoted or unquoted representation of an asset name.
     */
    private function getUnquotedAssetName(string $assetName) : string
    {
        if ($this->isIdentifierQuoted($assetName)) {
            return $this->trimQuotes($assetName);
        }

        return $assetName;
    }

    /**
     * Does this schema have a namespace with the given name?
     */
    public function hasNamespace(string $namespaceName) : bool
    {
        $namespaceName = strtolower($this->getUnquotedAssetName($namespaceName));

        return isset($this->namespaces[$namespaceName]);
    }

    /**
     * Does this schema have a table with the given name?
     */
    public function hasTable(string $tableName) : bool
    {
        $tableName = $this->getFullQualifiedAssetName($tableName);

        return isset($this->_tables[$tableName]);
    }

    /**
     * Gets all table names, prefixed with a schema name, even the default one if present.
     *
     * @return string[]
     */
    public function getTableNames() : array
    {
        return array_keys($this->_tables);
    }

    public function hasSequence(string $sequenceName) : bool
    {
        $sequenceName = $this->getFullQualifiedAssetName($sequenceName);

        return isset($this->_sequences[$sequenceName]);
    }

    /**
     * @throws SchemaException
     */
    public function getSequence(string $sequenceName) : Sequence
    {
        $sequenceName = $this->getFullQualifiedAssetName($sequenceName);
        if (! $this->hasSequence($sequenceName)) {
            throw SchemaException::sequenceDoesNotExist($sequenceName);
        }

        return $this->_sequences[$sequenceName];
    }

    /**
     * @return Sequence[]
     */
    public function getSequences() : array
    {
        return $this->_sequences;
    }

    /**
     * Creates a new namespace.
     *
     * @param string $namespaceName The name of the namespace to create.
     *
     * @return $this
     *
     * @throws SchemaException
     */
    public function createNamespace(string $namespaceName) : self
    {
        $unquotedNamespaceName = strtolower($this->getUnquotedAssetName($namespaceName));

        if (isset($this->namespaces[$unquotedNamespaceName])) {
            throw SchemaException::namespaceAlreadyExists($unquotedNamespaceName);
        }

        $this->namespaces[$unquotedNamespaceName] = $namespaceName;

        return $this;
    }

    /**
     * Creates a new table.
     */
    public function createTable(string $tableName) : Table
    {
        $table = new Table($tableName);
        $this->_addTable($table);

        foreach ($this->_schemaConfig->getDefaultTableOptions() as $name => $value) {
            $table->addOption($name, $value);
        }

        return $table;
    }

    /**
     * Renames a table.
     *
     * @return $this
     */
    public function renameTable(string $oldTableName, string $newTableName) : self
    {
        $table = $this->getTable($oldTableName);
        $table->_setName($newTableName);

        $this->dropTable($oldTableName);
        $this->_addTable($table);

        return $this;
    }

    /**
     * Drops a table from the schema.
     *
     * @return $this
     */
    public function dropTable(string $tableName) : self
    {
        $tableName = $this->getFullQualifiedAssetName($tableName);
        $this->getTable($tableName);
        unset($this->_tables[$tableName]);

        return $this;
    }

    /**
     * Creates a new sequence.
     */
    public function createSequence(string $sequenceName, int $allocationSize = 1, int $initialValue = 1) : Sequence
    {
        $seq = new Sequence($sequenceName, $allocationSize, $initialValue);
        $this->_addSequence($seq);

        return $seq;
    }

    /**
     * @return $this
     */
    public function dropSequence(string $sequenceName) : self
    {
        $sequenceName = $this->getFullQualifiedAssetName($sequenceName);
        unset($this->_sequences[$sequenceName]);

        return $this;
    }

    /**
     * Returns an array of necessary SQL queries to create the schema on the given platform.
     *
     * @return string[]
     */
    public function toSql(AbstractPlatform $platform) : array
    {
        $sqlCollector = new CreateSchemaSqlCollector($platform);
        $this->visit($sqlCollector);

        return $sqlCollector->getQueries();
    }

    /**
     * Return an array of necessary SQL queries to drop the schema on the given platform.
     *
     * @return string[]
     */
    public function toDropSql(AbstractPlatform $platform) : array
    {
        $dropSqlCollector = new DropSchemaSqlCollector($platform);
        $this->visit($dropSqlCollector);

        return $dropSqlCollector->getQueries();
    }

    /**
     * @return string[]
     */
    public function getMigrateToSql(Schema $toSchema, AbstractPlatform $platform) : array
    {
        $comparator = new Comparator();
        $schemaDiff = $comparator->compare($this, $toSchema);

        return $schemaDiff->toSql($platform);
    }

    /**
     * @return string[]
     */
    public function getMigrateFromSql(Schema $fromSchema, AbstractPlatform $platform) : array
    {
        $comparator = new Comparator();
        $schemaDiff = $comparator->compare($fromSchema, $this);

        return $schemaDiff->toSql($platform);
    }

    public function visit(Visitor $visitor) : void
    {
        $visitor->acceptSchema($this);

        if ($visitor instanceof NamespaceVisitor) {
            foreach ($this->namespaces as $namespace) {
                $visitor->acceptNamespace($namespace);
            }
        }

        foreach ($this->_tables as $table) {
            $table->visit($visitor);
        }

        foreach ($this->_sequences as $sequence) {
            $sequence->visit($visitor);
        }
    }

    /**
     * Cloning a Schema triggers a deep clone of all related assets.
     *
     * @return void
     */
    public function __clone()
    {
        foreach ($this->_tables as $k => $table) {
            $this->_tables[$k] = clone $table;
        }
        foreach ($this->_sequences as $k => $sequence) {
            $this->_sequences[$k] = clone $sequence;
        }
    }
}


1		<?php
2
3		namespace Doctrine\DBAL\Schema;
4
5		use Doctrine\DBAL\Platforms\AbstractPlatform;
6		use Doctrine\DBAL\Schema\Visitor\CreateSchemaSqlCollector;
7		use Doctrine\DBAL\Schema\Visitor\DropSchemaSqlCollector;
8		use Doctrine\DBAL\Schema\Visitor\NamespaceVisitor;
9		use Doctrine\DBAL\Schema\Visitor\Visitor;
10		use function array_keys;
11		use function assert;
12		use function is_string;
13		use function strpos;
14		use function strtolower;
15
16		/**
17		* Object representation of a database schema.
18		*
19		* Different vendors have very inconsistent naming with regard to the concept
20		* of a "schema". Doctrine understands a schema as the entity that conceptually
21		* wraps a set of database objects such as tables, sequences, indexes and
22		* foreign keys that belong to each other into a namespace. A Doctrine Schema
23		* has nothing to do with the "SCHEMA" defined as in PostgreSQL, it is more
24		* related to the concept of "DATABASE" that exists in MySQL and PostgreSQL.
25		*
26		* Every asset in the doctrine schema has a name. A name consists of either a
27		* namespace.local name pair or just a local unqualified name.
28		*
29		* The abstraction layer that covers a PostgreSQL schema is the namespace of an
30		* database object (asset). A schema can have a name, which will be used as
31		* default namespace for the unqualified database objects that are created in
32		* the schema.
33		*
34		* In the case of MySQL where cross-database queries are allowed this leads to
35		* databases being "misinterpreted" as namespaces. This is intentional, however
36		* the CREATE/DROP SQL visitors will just filter this queries and do not
37		* execute them. Only the queries for the currently connected database are
38		* executed.
39		*/
40		class Schema extends AbstractAsset
41		{
42		/**
43		* The namespaces in this schema.
44		*
45		* @var string[]
46		*/
47		private $namespaces = [];
48
49		/** @var Table[] */
50		protected $_tables = [];
51
52		/** @var Sequence[] */
53		protected $_sequences = [];
54
55		/** @var SchemaConfig */
56		protected $_schemaConfig = false;
57
58		/**
59		* @param Table[] $tables
60		* @param Sequence[] $sequences
61	1592	* @param string[] $namespaces
62		*/
63		public function __construct(
64		array $tables = [],
65		array $sequences = [],
66		?SchemaConfig $schemaConfig = null,
67	1592	array $namespaces = []
68	1385	) {
69		if ($schemaConfig === null) {
70	1592	$schemaConfig = new SchemaConfig();
71	1592	}
72		$this->_schemaConfig = $schemaConfig;
73	1592	$this->_setName($schemaConfig->getName() ?: 'public');
74	8
75		foreach ($namespaces as $namespace) {
76		$this->createNamespace($namespace);
77	1592	}
78	437
79		foreach ($tables as $table) {
80		$this->_addTable($table);
81	1569	}
82	101
83		foreach ($sequences as $sequence) {
84	1546	$this->_addSequence($sequence);
85		}
86		}
87
88		public function getName() : string
89		{
90		$name = parent::getName();
91		assert(is_string($name));
92
93		return $name;
94		}
95
96		public function hasExplicitForeignKeyIndexes() : bool
97		{
98		return $this->_schemaConfig->hasExplicitForeignKeyIndexes();
99	1247	}
100
101	1247	/**
102	1247	* @throws SchemaException
103		*/
104	1247	protected function _addTable(Table $table) : void
105	23	{
106		$namespaceName = $table->getNamespaceName();
107		$tableName = $table->getFullQualifiedName($this->getName());
108	1247
109	184	if (isset($this->_tables[$tableName])) {
110		throw SchemaException::tableAlreadyExists($tableName);
111		}
112	1247
113	1247	if ($namespaceName !== null
114	1247	&& ! $table->isInDefaultNamespace($this->getName())
115		&& ! $this->hasNamespace($namespaceName)) {
116		$this->createNamespace($namespaceName);
117		}
118
119		$this->_tables[$tableName] = $table;
120		$table->setSchemaConfig($this->_schemaConfig);
121	400	}
122
123	400	/**
124	400	* @throws SchemaException
125		*/
126	400	protected function _addSequence(Sequence $sequence) : void
127	23	{
128		$namespaceName = $sequence->getNamespaceName();
129		$seqName = $sequence->getFullQualifiedName($this->getName());
130	400
131	23	if (isset($this->_sequences[$seqName])) {
132		throw SchemaException::sequenceAlreadyExists($seqName);
133		}
134	400
135	400	if ($namespaceName !== null
136		&& ! $sequence->isInDefaultNamespace($this->getName())
137		&& ! $this->hasNamespace($namespaceName)) {
138		$this->createNamespace($namespaceName);
139		}
140
141		$this->_sequences[$seqName] = $sequence;
142	621	}
143
144	621	/**
145		* Returns the namespaces of this schema.
146		*
147		* @return string[] A list of namespace names.
148		*/
149		public function getNamespaces() : array
150		{
151		return $this->namespaces;
152	690	}
153
154	690	/**
155		* Gets all tables of this schema.
156		*
157		* @return Table[]
158		*/
159		public function getTables() : array
160		{
161		return $this->_tables;
162		}
163
164	759	/**
165		* @throws SchemaException
166	759	*/
167	759	public function getTable(string $tableName) : Table
168	23	{
169		$tableName = $this->getFullQualifiedAssetName($tableName);
170		if (! isset($this->_tables[$tableName])) {
171	736	throw SchemaException::tableDoesNotExist($tableName);
172		}
173
174		return $this->_tables[$tableName];
175		}
176
177		private function getFullQualifiedAssetName(string $name) : string
178		{
179	1058	$name = $this->getUnquotedAssetName($name);
180
181	1058	if (strpos($name, '.') === false) {
182		$name = $this->getName() . '.' . $name;
183	1058	}
184	966
185		return strtolower($name);
186		}
187	1058
188		/**
189		* Returns the unquoted representation of a given asset name.
190		*
191		* @param string $assetName Quoted or unquoted representation of an asset name.
192		*/
193		private function getUnquotedAssetName(string $assetName) : string
194		{
195		if ($this->isIdentifierQuoted($assetName)) {
196		return $this->trimQuotes($assetName);
197	1173	}
198
199	1173	return $assetName;
200	46	}
201
202		/**
203	1150	* Does this schema have a namespace with the given name?
204		*/
205		public function hasNamespace(string $namespaceName) : bool
206		{
207		$namespaceName = strtolower($this->getUnquotedAssetName($namespaceName));
208
209		return isset($this->namespaces[$namespaceName]);
210		}
211
212		/**
213	236	* Does this schema have a table with the given name?
214		*/
215	236	public function hasTable(string $tableName) : bool
216		{
217	236	$tableName = $this->getFullQualifiedAssetName($tableName);
218
219		return isset($this->_tables[$tableName]);
220		}
221
222		/**
223		* Gets all table names, prefixed with a schema name, even the default one if present.
224		*
225		* @return string[]
226		*/
227	736	public function getTableNames() : array
228		{
229	736	return array_keys($this->_tables);
230		}
231	736
232		public function hasSequence(string $sequenceName) : bool
233		{
234		$sequenceName = $this->getFullQualifiedAssetName($sequenceName);
235
236		return isset($this->_sequences[$sequenceName]);
237		}
238
239		/**
240		* @throws SchemaException
241		*/
242		public function getSequence(string $sequenceName) : Sequence
243		{
244		$sequenceName = $this->getFullQualifiedAssetName($sequenceName);
245		if (! $this->hasSequence($sequenceName)) {
246		throw SchemaException::sequenceDoesNotExist($sequenceName);
247		}
248
249	299	return $this->_sequences[$sequenceName];
250		}
251	299
252		/**
253	299	* @return Sequence[]
254		*/
255		public function getSequences() : array
256		{
257		return $this->_sequences;
258		}
259
260		/**
261		* Creates a new namespace.
262		*
263	207	* @param string $namespaceName The name of the namespace to create.
264		*
265	207	* @return $this
266	207	*
267	23	* @throws SchemaException
268		*/
269		public function createNamespace(string $namespaceName) : self
270	184	{
271		$unquotedNamespaceName = strtolower($this->getUnquotedAssetName($namespaceName));
272
273		if (isset($this->namespaces[$unquotedNamespaceName])) {
274		throw SchemaException::namespaceAlreadyExists($unquotedNamespaceName);
275		}
276	667
277		$this->namespaces[$unquotedNamespaceName] = $namespaceName;
278	667
279		return $this;
280		}
281
282		/**
283		* Creates a new table.
284		*/
285		public function createTable(string $tableName) : Table
286		{
287		$table = new Table($tableName);
288		$this->_addTable($table);
289
290	261	foreach ($this->_schemaConfig->getDefaultTableOptions() as $name => $value) {
291		$table->addOption($name, $value);
292	261	}
293
294	261	return $table;
295	23	}
296
297		/**
298	261	* Renames a table.
299		*
300	261	* @return $this
301		*/
302		public function renameTable(string $oldTableName, string $newTableName) : self
303		{
304		$table = $this->getTable($oldTableName);
305		$table->_setName($newTableName);
306
307		$this->dropTable($oldTableName);
308		$this->_addTable($table);
309
310	856	return $this;
311		}
312	856
313	856	/**
314		* Drops a table from the schema.
315	856	*
316		* @return $this
317		*/
318		public function dropTable(string $tableName) : self
319	856	{
320		$tableName = $this->getFullQualifiedAssetName($tableName);
321		$this->getTable($tableName);
322		unset($this->_tables[$tableName]);
323
324		return $this;
325		}
326
327		/**
328		* Creates a new sequence.
329		*/
330	23	public function createSequence(string $sequenceName, int $allocationSize = 1, int $initialValue = 1) : Sequence
331		{
332	23	$seq = new Sequence($sequenceName, $allocationSize, $initialValue);
333	23	$this->_addSequence($seq);
334
335	23	return $seq;
336	23	}
337
338	23	/**
339		* @return $this
340		*/
341		public function dropSequence(string $sequenceName) : self
342		{
343		$sequenceName = $this->getFullQualifiedAssetName($sequenceName);
344		unset($this->_sequences[$sequenceName]);
345
346		return $this;
347		}
348	115
349		/**
350	115	* Returns an array of necessary SQL queries to create the schema on the given platform.
351	115	*
352	115	* @return string[]
353		*/
354	115	public function toSql(AbstractPlatform $platform) : array
355		{
356		$sqlCollector = new CreateSchemaSqlCollector($platform);
357		$this->visit($sqlCollector);
358
359		return $sqlCollector->getQueries();
360		}
361
362		/**
363		* Return an array of necessary SQL queries to drop the schema on the given platform.
364		*
365		* @return string[]
366	299	*/
367		public function toDropSql(AbstractPlatform $platform) : array
368	299	{
369	299	$dropSqlCollector = new DropSchemaSqlCollector($platform);
370		$this->visit($dropSqlCollector);
371	299
372		return $dropSqlCollector->getQueries();
373		}
374
375		/**
376		* @return string[]
377		*/
378		public function getMigrateToSql(Schema $toSchema, AbstractPlatform $platform) : array
379	23	{
380		$comparator = new Comparator();
381	23	$schemaDiff = $comparator->compare($this, $toSchema);
382	23
383		return $schemaDiff->toSql($platform);
384	23	}
385
386		/**
387		* @return string[]
388		*/
389		public function getMigrateFromSql(Schema $fromSchema, AbstractPlatform $platform) : array
390		{
391		$comparator = new Comparator();
392	267	$schemaDiff = $comparator->compare($fromSchema, $this);
393
394	267	return $schemaDiff->toSql($platform);
395	267	}
396
397	267	public function visit(Visitor $visitor) : void
398		{
399		$visitor->acceptSchema($this);
400
401		if ($visitor instanceof NamespaceVisitor) {
402		foreach ($this->namespaces as $namespace) {
403		$visitor->acceptNamespace($namespace);
404		}
405	23	}
406
407	23	foreach ($this->_tables as $table) {
408	23	$table->visit($visitor);
409		}
410	23
411		foreach ($this->_sequences as $sequence) {
412		$sequence->visit($visitor);
413		}
414		}
415
416		/**
417		* Cloning a Schema triggers a deep clone of all related assets.
418		*
419		* @return void
420		*/
421		public function __clone()
422		{
423		foreach ($this->_tables as $k => $table) {
424		$this->_tables[$k] = clone $table;
425		}
426		foreach ($this->_sequences as $k => $sequence) {
427		$this->_sequences[$k] = clone $sequence;
428		}
429		}
430		}
431

doctrine / dbal

Pull Request — develop (#3348)

Schema::createSequence() A

Complexity

Size

Duplication

Code Coverage

Importance

Duplication Side-by-Side

Filter issues like