Schema::hasTable() - 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 2019-04-18 23:31 UTC

Schema::hasTable() A

↳ Parent: Schema

Complexity

Conditions	1
Paths	1

Size

Total Lines	5
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	2
CRAP Score	1

Importance

Changes

Metric	Value
eloc	2
dl	0
loc	5
ccs	2
cts	2
cp	1
rs	10
c	0
b	0
f	0
cc	1
nc	1
nop	1
crap	1

<?php

declare(strict_types=1);

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.
     */
    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		declare(strict_types=1);
4
5		namespace Doctrine\DBAL\Schema;
6
7		use Doctrine\DBAL\Platforms\AbstractPlatform;
8		use Doctrine\DBAL\Schema\Visitor\CreateSchemaSqlCollector;
9		use Doctrine\DBAL\Schema\Visitor\DropSchemaSqlCollector;
10		use Doctrine\DBAL\Schema\Visitor\NamespaceVisitor;
11		use Doctrine\DBAL\Schema\Visitor\Visitor;
12		use function array_keys;
13		use function assert;
14		use function is_string;
15		use function strpos;
16		use function strtolower;
17
18		/**
19		* Object representation of a database schema.
20		*
21		* Different vendors have very inconsistent naming with regard to the concept
22		* of a "schema". Doctrine understands a schema as the entity that conceptually
23		* wraps a set of database objects such as tables, sequences, indexes and
24		* foreign keys that belong to each other into a namespace. A Doctrine Schema
25		* has nothing to do with the "SCHEMA" defined as in PostgreSQL, it is more
26		* related to the concept of "DATABASE" that exists in MySQL and PostgreSQL.
27		*
28		* Every asset in the doctrine schema has a name. A name consists of either a
29		* namespace.local name pair or just a local unqualified name.
30		*
31		* The abstraction layer that covers a PostgreSQL schema is the namespace of an
32		* database object (asset). A schema can have a name, which will be used as
33		* default namespace for the unqualified database objects that are created in
34		* the schema.
35		*
36		* In the case of MySQL where cross-database queries are allowed this leads to
37		* databases being "misinterpreted" as namespaces. This is intentional, however
38		* the CREATE/DROP SQL visitors will just filter this queries and do not
39		* execute them. Only the queries for the currently connected database are
40		* executed.
41		*/
42		class Schema extends AbstractAsset
43		{
44		/**
45		* The namespaces in this schema.
46		*
47		* @var string[]
48		*/
49		private $namespaces = [];
50
51		/** @var Table[] */
52		protected $_tables = [];
53
54		/** @var Sequence[] */
55		protected $_sequences = [];
56
57		/** @var SchemaConfig */
58		protected $_schemaConfig = false;
59
60		/**
61		* @param Table[] $tables
62		* @param Sequence[] $sequences
63	1899	* @param string[] $namespaces
64		*/
65		public function __construct(
66		array $tables = [],
67		array $sequences = [],
68		?SchemaConfig $schemaConfig = null,
69	1899	array $namespaces = []
70	1878	) {
71		if ($schemaConfig === null) {
72	1899	$schemaConfig = new SchemaConfig();
73	1899	}
74		$this->_schemaConfig = $schemaConfig;
75	1899	$this->_setName($schemaConfig->getName() ?: 'public');
76	504
77		foreach ($namespaces as $namespace) {
78		$this->createNamespace($namespace);
79	1899	}
80	1651
81		foreach ($tables as $table) {
82		$this->_addTable($table);
83	1897	}
84	973
85		foreach ($sequences as $sequence) {
86	1895	$this->_addSequence($sequence);
87		}
88		}
89
90		public function getName() : string
91		{
92		$name = parent::getName();
93		assert(is_string($name));
94
95		return $name;
96		}
97
98		public function hasExplicitForeignKeyIndexes() : bool
99		{
100		return $this->_schemaConfig->hasExplicitForeignKeyIndexes();
101	1869	}
102
103	1869	/**
104	1869	* @throws SchemaException
105		*/
106	1869	protected function _addTable(Table $table) : void
107	777	{
108		$namespaceName = $table->getNamespaceName();
109		$tableName = $table->getFullQualifiedName($this->getName());
110	1869
111	1869	if (isset($this->_tables[$tableName])) {
112	1869	throw SchemaException::tableAlreadyExists($tableName);
113	1116	}
114
115		if ($namespaceName !== null
116	1869	&& ! $table->isInDefaultNamespace($this->getName())
117	1869	&& ! $this->hasNamespace($namespaceName)) {
118	1869	$this->createNamespace($namespaceName);
119		}
120
121		$this->_tables[$tableName] = $table;
122		$table->setSchemaConfig($this->_schemaConfig);
123		}
124
125	1390	/**
126		* @throws SchemaException
127	1390	*/
128	1390	protected function _addSequence(Sequence $sequence) : void
129		{
130	1390	$namespaceName = $sequence->getNamespaceName();
131	552	$seqName = $sequence->getFullQualifiedName($this->getName());
132
133		if (isset($this->_sequences[$seqName])) {
134	1390	throw SchemaException::sequenceAlreadyExists($seqName);
135	1390	}
136	1390
137	352	if ($namespaceName !== null
138		&& ! $sequence->isInDefaultNamespace($this->getName())
139		&& ! $this->hasNamespace($namespaceName)) {
140	1390	$this->createNamespace($namespaceName);
141	1390	}
142
143		$this->_sequences[$seqName] = $sequence;
144		}
145
146		/**
147		* Returns the namespaces of this schema.
148	1638	*
149		* @return string[] A list of namespace names.
150	1638	*/
151		public function getNamespaces() : array
152		{
153		return $this->namespaces;
154		}
155
156		/**
157		* Gets all tables of this schema.
158	1644	*
159		* @return Table[]
160	1644	*/
161		public function getTables() : array
162		{
163		return $this->_tables;
164		}
165
166		/**
167		* @throws SchemaException
168		*/
169		public function getTable(string $tableName) : Table
170	1650	{
171		$tableName = $this->getFullQualifiedAssetName($tableName);
172	1650	if (! isset($this->_tables[$tableName])) {
173	1650	throw SchemaException::tableDoesNotExist($tableName);
174	802	}
175
176		return $this->_tables[$tableName];
177	1648	}
178
179		private function getFullQualifiedAssetName(string $name) : string
180		{
181		$name = $this->getUnquotedAssetName($name);
182
183		if (strpos($name, '.') === false) {
184		$name = $this->getName() . '.' . $name;
185	1705	}
186
187	1705	return strtolower($name);
188		}
189	1705
190	1697	/**
191		* Returns the unquoted representation of a given asset name.
192		*
193	1705	* @param string $assetName Quoted or unquoted representation of an asset name.
194		*/
195		private function getUnquotedAssetName(string $assetName) : string
196		{
197		if ($this->isIdentifierQuoted($assetName)) {
198		return $this->trimQuotes($assetName);
199		}
200
201		return $assetName;
202		}
203	1715
204		/**
205	1715	* Does this schema have a namespace with the given name?
206	479	*/
207		public function hasNamespace(string $namespaceName) : bool
208		{
209	1713	$namespaceName = strtolower($this->getUnquotedAssetName($namespaceName));
210
211		return isset($this->namespaces[$namespaceName]);
212		}
213
214		/**
215		* Does this schema have a table with the given name?
216		*/
217		public function hasTable(string $tableName) : bool
218		{
219	1234	$tableName = $this->getFullQualifiedAssetName($tableName);
220
221	1234	return isset($this->_tables[$tableName]);
222		}
223	1234
224		/**
225		* Gets all table names, prefixed with a schema name, even the default one if present.
226		*
227		* @return string[]
228		*/
229		public function getTableNames() : array
230		{
231		return array_keys($this->_tables);
232		}
233	1677
234		public function hasSequence(string $sequenceName) : bool
235	1677	{
236		$sequenceName = $this->getFullQualifiedAssetName($sequenceName);
237	1677
238		return isset($this->_sequences[$sequenceName]);
239		}
240
241		/**
242		* @throws SchemaException
243		*/
244		public function getSequence(string $sequenceName) : Sequence
245		{
246		$sequenceName = $this->getFullQualifiedAssetName($sequenceName);
247		if (! $this->hasSequence($sequenceName)) {
248		throw SchemaException::sequenceDoesNotExist($sequenceName);
249		}
250
251		return $this->_sequences[$sequenceName];
252		}
253
254		/**
255	1276	* @return Sequence[]
256		*/
257	1276	public function getSequences() : array
258		{
259	1276	return $this->_sequences;
260		}
261
262		/**
263		* Creates a new namespace.
264		*
265		* @param string $namespaceName The name of the namespace to create.
266		*
267		* @return $this
268		*
269	1193	* @throws SchemaException
270		*/
271	1193	public function createNamespace(string $namespaceName) : self
272	1193	{
273	627	$unquotedNamespaceName = strtolower($this->getUnquotedAssetName($namespaceName));
274
275		if (isset($this->namespaces[$unquotedNamespaceName])) {
276	1191	throw SchemaException::namespaceAlreadyExists($unquotedNamespaceName);
277		}
278
279		$this->namespaces[$unquotedNamespaceName] = $namespaceName;
280
281		return $this;
282	1642	}
283
284	1642	/**
285		* Creates a new table.
286		*/
287		public function createTable(string $tableName) : Table
288		{
289		$table = new Table($tableName);
290		$this->_addTable($table);
291
292		foreach ($this->_schemaConfig->getDefaultTableOptions() as $name => $value) {
293		$table->addOption($name, $value);
294		}
295
296	1274	return $table;
297		}
298	1274
299		/**
300	1274	* Renames a table.
301	402	*
302		* @return $this
303		*/
304	1274	public function renameTable(string $oldTableName, string $newTableName) : self
305		{
306	1274	$table = $this->getTable($oldTableName);
307		$table->_setName($newTableName);
308
309		$this->dropTable($oldTableName);
310		$this->_addTable($table);
311
312		return $this;
313		}
314
315		/**
316	1832	* Drops a table from the schema.
317		*
318	1832	* @return $this
319	1832	*/
320		public function dropTable(string $tableName) : self
321	1832	{
322		$tableName = $this->getFullQualifiedAssetName($tableName);
323		$this->getTable($tableName);
324		unset($this->_tables[$tableName]);
325	1832
326		return $this;
327		}
328
329		/**
330		* Creates a new sequence.
331		*/
332		public function createSequence(string $sequenceName, int $allocationSize = 1, int $initialValue = 1) : Sequence
333		{
334		$seq = new Sequence($sequenceName, $allocationSize, $initialValue);
335		$this->_addSequence($seq);
336	752
337		return $seq;
338	752	}
339	752
340		/**
341	752	* @return $this
342	752	*/
343		public function dropSequence(string $sequenceName) : self
344	752	{
345		$sequenceName = $this->getFullQualifiedAssetName($sequenceName);
346		unset($this->_sequences[$sequenceName]);
347
348		return $this;
349		}
350
351		/**
352		* Returns an array of necessary SQL queries to create the schema on the given platform.
353		*
354	760	* @return string[]
355		*/
356	760	public function toSql(AbstractPlatform $platform) : array
357	760	{
358	760	$sqlCollector = new CreateSchemaSqlCollector($platform);
359		$this->visit($sqlCollector);
360	760
361		return $sqlCollector->getQueries();
362		}
363
364		/**
365		* Return an array of necessary SQL queries to drop the schema on the given platform.
366		*
367		* @return string[]
368		*/
369		public function toDropSql(AbstractPlatform $platform) : array
370		{
371		$dropSqlCollector = new DropSchemaSqlCollector($platform);
372	1276	$this->visit($dropSqlCollector);
373
374	1276	return $dropSqlCollector->getQueries();
375	1276	}
376
377	1276	/**
378		* @return string[]
379		*/
380		public function getMigrateToSql(Schema $toSchema, AbstractPlatform $platform) : array
381		{
382		$comparator = new Comparator();
383		$schemaDiff = $comparator->compare($this, $toSchema);
384
385	577	return $schemaDiff->toSql($platform);
386		}
387	577
388	577	/**
389		* @return string[]
390	577	*/
391		public function getMigrateFromSql(Schema $fromSchema, AbstractPlatform $platform) : array
392		{
393		$comparator = new Comparator();
394		$schemaDiff = $comparator->compare($fromSchema, $this);
395
396		return $schemaDiff->toSql($platform);
397		}
398	1786
399		public function visit(Visitor $visitor) : void
400	1786	{
401	1786	$visitor->acceptSchema($this);
402
403	1786	if ($visitor instanceof NamespaceVisitor) {
404		foreach ($this->namespaces as $namespace) {
405		$visitor->acceptNamespace($namespace);
406		}
407		}
408
409		foreach ($this->_tables as $table) {
410		$table->visit($visitor);
411	137	}
412
413	137	foreach ($this->_sequences as $sequence) {
414	137	$sequence->visit($visitor);
415		}
416	137	}
417
418		/**
419		* Cloning a Schema triggers a deep clone of all related assets.
420		*/
421		public function __clone()
422	896	{
423		foreach ($this->_tables as $k => $table) {
424	896	$this->_tables[$k] = clone $table;
425	896	}
426		foreach ($this->_sequences as $k => $sequence) {
427	896	$this->_sequences[$k] = clone $sequence;
428		}
429		}
430		}
431

doctrine / dbal

Pull Request — develop (#3348)

Schema::hasTable() A

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