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<?php |
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/* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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* This software consists of voluntary contributions made by many individuals |
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* and is licensed under the MIT license. For more information, see |
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* <http://www.doctrine-project.org>. |
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*/ |
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namespace Doctrine\DBAL\Schema\Visitor; |
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use Doctrine\DBAL\Platforms\AbstractPlatform; |
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use Doctrine\DBAL\Schema\Table; |
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use Doctrine\DBAL\Schema\ForeignKeyConstraint; |
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use Doctrine\DBAL\Schema\Sequence; |
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use Doctrine\DBAL\Schema\View; |
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use Doctrine\DBAL\Schema\SchemaException; |
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use function strlen; |
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/** |
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* Gathers SQL statements that allow to completely drop the current schema. |
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* |
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* @link www.doctrine-project.org |
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* @since 2.0 |
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* @author Benjamin Eberlei <[email protected]> |
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*/ |
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class DropSchemaSqlCollector extends AbstractVisitor |
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{ |
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/** |
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* @var \SplObjectStorage |
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*/ |
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private $constraints; |
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/** |
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* @var \SplObjectStorage |
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*/ |
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private $sequences; |
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/** |
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* @var \SplObjectStorage |
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*/ |
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private $tables; |
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/** |
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* @var \SplObjectStorage |
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*/ |
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private $views; |
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/** |
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* @var AbstractPlatform |
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*/ |
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private $platform; |
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/** |
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* @param AbstractPlatform $platform |
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*/ |
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public function __construct(AbstractPlatform $platform) |
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{ |
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$this->platform = $platform; |
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$this->clearQueries(); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function acceptTable(Table $table) |
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{ |
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$this->tables->attach($table); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function acceptForeignKey(Table $localTable, ForeignKeyConstraint $fkConstraint) |
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{ |
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if (strlen($fkConstraint->getName()) == 0) { |
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throw SchemaException::namedForeignKeyRequired($localTable, $fkConstraint); |
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} |
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$this->constraints->attach($fkConstraint, $localTable); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function acceptSequence(Sequence $sequence) |
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{ |
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$this->sequences->attach($sequence); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function acceptView(View $view) |
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{ |
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$this->views->attach($view); |
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} |
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/** |
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* @return void |
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*/ |
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public function clearQueries() |
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{ |
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$this->constraints = new \SplObjectStorage(); |
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$this->sequences = new \SplObjectStorage(); |
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$this->tables = new \SplObjectStorage(); |
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$this->views = new \SplObjectStorage(); |
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} |
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/** |
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* @return array |
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*/ |
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public function getQueries() |
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{ |
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$sql = []; |
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foreach ($this->constraints as $fkConstraint) { |
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$localTable = $this->constraints[$fkConstraint]; |
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$sql[] = $this->platform->getDropForeignKeySQL($fkConstraint, $localTable); |
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} |
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foreach ($this->sequences as $sequence) { |
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$sql[] = $this->platform->getDropSequenceSQL($sequence); |
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} |
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foreach ($this->tables as $table) { |
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$sql[] = $this->platform->getDropTableSQL($table); |
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} |
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foreach ($this->views as $view) { |
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$sql[] = $this->platform->getDropViewSQL($view->getName()); |
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} |
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return $sql; |
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} |
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} |
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doctrine /
dbal
