/**
* Gets the SQL used to create a sequence that starts with a given value
* and increments by the given allocation size.
*
* Need to specifiy minvalue, since start with is hidden in the system and MINVALUE <= START WITH.
* Therefore we can use MINVALUE to be able to get a hint what START WITH was for later introspection
* in {@see listSequences()}
*
* @param \Doctrine\DBAL\Schema\Sequence $sequence
* @return string
*/
public function getCreateSequenceSQL(\Doctrine\DBAL\Schema\Sequence $sequence)
{
return 'CREATE SEQUENCE ' . $sequence->getQuotedName($this) . ' START WITH ' . $sequence->getInitialValue() . ' MINVALUE ' . $sequence->getInitialValue() . ' INCREMENT BY ' . $sequence->getAllocationSize();
}
/**
* {@inheritDoc}
*/
public function getCreateSequenceSQL(Sequence $sequence)
{
return 'CREATE SEQUENCE ' . $sequence->getQuotedName($this) . ' INCREMENT BY ' . $sequence->getAllocationSize() . ' MINVALUE ' . $sequence->getInitialValue() . ' START ' . $sequence->getInitialValue() . $this->getSequenceCacheSQL($sequence);
}
public function testReturnsSequenceSQL()
{
$sequence = new Sequence('test_seq', 1, 10);
$this->assertEquals('CREATE SEQUENCE ' . $sequence->getQuotedName($this->_platform) . ' START WITH ' . $sequence->getInitialValue() . ' INCREMENT BY ' . $sequence->getAllocationSize() . ' MINVALUE ' . $sequence->getInitialValue(), $this->_platform->getCreateSequenceSQL($sequence));
$this->assertEquals('ALTER SEQUENCE ' . $sequence->getQuotedName($this->_platform) . ' INCREMENT BY ' . $sequence->getAllocationSize(), $this->_platform->getAlterSequenceSQL($sequence));
$this->assertEquals('DROP SEQUENCE ' . $sequence->getName(), $this->_platform->getDropSequenceSQL($sequence));
$this->assertEquals('DROP SEQUENCE ' . $sequence->getName(), $this->_platform->getDropSequenceSQL($sequence->getName()));
}
/**
* @param \Doctrine\DBAL\Schema\Sequence $sequence1
* @param \Doctrine\DBAL\Schema\Sequence $sequence2
*
* @return boolean
*/
public function diffSequence(Sequence $sequence1, Sequence $sequence2)
{
if ($sequence1->getAllocationSize() != $sequence2->getAllocationSize()) {
return true;
}
if ($sequence1->getInitialValue() != $sequence2->getInitialValue()) {
return true;
}
return false;
}
/**
* Accept an sequence
*
* @param Sequence $sequence a sequence object
*
* @return void
*/
public function acceptSequence(Sequence $sequence)
{
$this->schemaArray['sequence'][$sequence->getName()] = array('name' => $sequence->getName(), 'allocationsize' => $sequence->getAllocationSize(), 'initialvalue' => $sequence->getInitialValue());
}
