139 lines
3.0 KiB
PHP
139 lines
3.0 KiB
PHP
<?php
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namespace Doctrine\DBAL\Schema;
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use Doctrine\DBAL\Schema\Visitor\Visitor;
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use function count;
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use function is_numeric;
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use function sprintf;
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/**
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* Sequence structure.
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*/
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class Sequence extends AbstractAsset
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{
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/** @var int */
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protected $allocationSize = 1;
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/** @var int */
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protected $initialValue = 1;
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/** @var int|null */
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protected $cache = null;
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/**
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* @param string $name
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* @param int $allocationSize
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* @param int $initialValue
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* @param int|null $cache
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*/
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public function __construct($name, $allocationSize = 1, $initialValue = 1, $cache = null)
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{
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$this->_setName($name);
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$this->setAllocationSize($allocationSize);
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$this->setInitialValue($initialValue);
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$this->cache = $cache;
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}
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/**
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* @return int
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*/
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public function getAllocationSize()
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{
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return $this->allocationSize;
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}
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/**
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* @return int
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*/
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public function getInitialValue()
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{
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return $this->initialValue;
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}
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/**
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* @return int|null
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*/
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public function getCache()
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{
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return $this->cache;
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}
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/**
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* @param int $allocationSize
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*
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* @return \Doctrine\DBAL\Schema\Sequence
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*/
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public function setAllocationSize($allocationSize)
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{
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$this->allocationSize = is_numeric($allocationSize) ? (int) $allocationSize : 1;
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return $this;
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}
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/**
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* @param int $initialValue
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*
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* @return \Doctrine\DBAL\Schema\Sequence
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*/
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public function setInitialValue($initialValue)
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{
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$this->initialValue = is_numeric($initialValue) ? (int) $initialValue : 1;
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return $this;
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}
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/**
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* @param int $cache
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*
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* @return \Doctrine\DBAL\Schema\Sequence
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*/
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public function setCache($cache)
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{
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$this->cache = $cache;
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return $this;
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}
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/**
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* Checks if this sequence is an autoincrement sequence for a given table.
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*
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* This is used inside the comparator to not report sequences as missing,
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* when the "from" schema implicitly creates the sequences.
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*
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* @return bool
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*/
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public function isAutoIncrementsFor(Table $table)
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{
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if (! $table->hasPrimaryKey()) {
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return false;
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}
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$pkColumns = $table->getPrimaryKey()->getColumns();
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if (count($pkColumns) !== 1) {
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return false;
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}
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$column = $table->getColumn($pkColumns[0]);
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if (! $column->getAutoincrement()) {
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return false;
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}
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$sequenceName = $this->getShortestName($table->getNamespaceName());
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$tableName = $table->getShortestName($table->getNamespaceName());
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$tableSequenceName = sprintf('%s_%s_seq', $tableName, $column->getShortestName($table->getNamespaceName()));
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return $tableSequenceName === $sequenceName;
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}
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/**
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* @return void
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*/
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public function visit(Visitor $visitor)
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{
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$visitor->acceptSequence($this);
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}
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}
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