本文整理汇总了PHP中Doctrine\DBAL\Platforms\AbstractPlatform::prefersSequences方法的典型用法代码示例。如果您正苦于以下问题：PHP AbstractPlatform::prefersSequences方法的具体用法？PHP AbstractPlatform::prefersSequences怎么用？PHP AbstractPlatform::prefersSequences使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Doctrine\DBAL\Platforms\AbstractPlatform的用法示例。
在下文中一共展示了AbstractPlatform::prefersSequences方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的PHP代码示例。
示例1: completeIdGeneratorMapping
/**
* Completes the ID generator mapping. If "auto" is specified we choose the generator
* most appropriate for the targeted database platform.
*
* @param ClassMetadataInfo $class
*
* @return void
*
* @throws ORMException
*/
private function completeIdGeneratorMapping(ClassMetadataInfo $class)
{
$idGenType = $class->generatorType;
if ($idGenType == ClassMetadata::GENERATOR_TYPE_AUTO) {
if ($this->targetPlatform->prefersSequences()) {
$class->setIdGeneratorType(ClassMetadata::GENERATOR_TYPE_SEQUENCE);
} else {
if ($this->targetPlatform->prefersIdentityColumns()) {
$class->setIdGeneratorType(ClassMetadata::GENERATOR_TYPE_IDENTITY);
} else {
$class->setIdGeneratorType(ClassMetadata::GENERATOR_TYPE_TABLE);
}
}
}
// Create & assign an appropriate ID generator instance
switch ($class->generatorType) {
case ClassMetadata::GENERATOR_TYPE_IDENTITY:
$sequenceName = null;
$fieldName = $class->identifier ? $class->getSingleIdentifierFieldName() : null;
// Platforms that do not have native IDENTITY support need a sequence to emulate this behaviour.
if ($this->targetPlatform->usesSequenceEmulatedIdentityColumns()) {
$columnName = $class->getSingleIdentifierColumnName();
$quoted = isset($class->fieldMappings[$fieldName]['quoted']) || isset($class->table['quoted']);
$sequenceName = $this->targetPlatform->getIdentitySequenceName($class->getTableName(), $columnName);
$definition = array('sequenceName' => $this->targetPlatform->fixSchemaElementName($sequenceName));
if ($quoted) {
$definition['quoted'] = true;
}
$sequenceName = $this->em->getConfiguration()->getQuoteStrategy()->getSequenceName($definition, $class, $this->targetPlatform);
}
$generator = $fieldName && $class->fieldMappings[$fieldName]['type'] === 'bigint' ? new BigIntegerIdentityGenerator($sequenceName) : new IdentityGenerator($sequenceName);
$class->setIdGenerator($generator);
break;
case ClassMetadata::GENERATOR_TYPE_SEQUENCE:
// If there is no sequence definition yet, create a default definition
$definition = $class->sequenceGeneratorDefinition;
if (!$definition) {
$fieldName = $class->getSingleIdentifierFieldName();
$columnName = $class->getSingleIdentifierColumnName();
$quoted = isset($class->fieldMappings[$fieldName]['quoted']) || isset($class->table['quoted']);
$sequenceName = $class->getTableName() . '_' . $columnName . '_seq';
$definition = array('sequenceName' => $this->targetPlatform->fixSchemaElementName($sequenceName), 'allocationSize' => 1, 'initialValue' => 1);
if ($quoted) {
$definition['quoted'] = true;
}
$class->setSequenceGeneratorDefinition($definition);
}
$sequenceGenerator = new \Doctrine\ORM\Id\SequenceGenerator($this->em->getConfiguration()->getQuoteStrategy()->getSequenceName($definition, $class, $this->targetPlatform), $definition['allocationSize']);
$class->setIdGenerator($sequenceGenerator);
break;
case ClassMetadata::GENERATOR_TYPE_NONE:
$class->setIdGenerator(new \Doctrine\ORM\Id\AssignedGenerator());
break;
case ClassMetadata::GENERATOR_TYPE_UUID:
$class->setIdGenerator(new \Doctrine\ORM\Id\UuidGenerator());
break;
case ClassMetadata::GENERATOR_TYPE_TABLE:
throw new ORMException("TableGenerator not yet implemented.");
break;
case ClassMetadata::GENERATOR_TYPE_CUSTOM:
$definition = $class->customGeneratorDefinition;
if (!class_exists($definition['class'])) {
throw new ORMException("Can't instantiate custom generator : " . $definition['class']);
}
$class->setIdGenerator(new $definition['class']());
break;
default:
throw new ORMException("Unknown generator type: " . $class->generatorType);
}
}示例2: completeIdGeneratorMapping
/**
* Completes the ID generator mapping. If "auto" is specified we choose the generator
* most appropriate for the targeted database platform.
*
* @param ClassMetadataInfo $class
* @throws ORMException
*/
private function completeIdGeneratorMapping(ClassMetadataInfo $class)
{
$idGenType = $class->generatorType;
if ($idGenType == ClassMetadata::GENERATOR_TYPE_AUTO) {
if ($this->targetPlatform->prefersSequences()) {
$class->setIdGeneratorType(ClassMetadata::GENERATOR_TYPE_SEQUENCE);
} else {
if ($this->targetPlatform->prefersIdentityColumns()) {
$class->setIdGeneratorType(ClassMetadata::GENERATOR_TYPE_IDENTITY);
} else {
$class->setIdGeneratorType(ClassMetadata::GENERATOR_TYPE_TABLE);
}
}
}
// Create & assign an appropriate ID generator instance
switch ($class->generatorType) {
case ClassMetadata::GENERATOR_TYPE_IDENTITY:
// For PostgreSQL IDENTITY (SERIAL) we need a sequence name. It defaults to
// <table>_<column>_seq in PostgreSQL for SERIAL columns.
// Not pretty but necessary and the simplest solution that currently works.
$sequenceName = null;
if ($this->targetPlatform instanceof Platforms\PostgreSQLPlatform) {
$fieldName = $class->getSingleIdentifierFieldName();
$columnName = $class->getSingleIdentifierColumnName();
$quoted = isset($class->fieldMappings[$fieldName]['quoted']) || isset($class->table['quoted']);
$sequenceName = $class->getTableName() . '_' . $columnName . '_seq';
$definition = array('sequenceName' => $this->targetPlatform->fixSchemaElementName($sequenceName));
if ($quoted) {
$definition['quoted'] = true;
}
$sequenceName = $this->em->getConfiguration()->getQuoteStrategy()->getSequenceName($definition, $class, $this->targetPlatform);
}
$class->setIdGenerator(new \Doctrine\ORM\Id\IdentityGenerator($sequenceName));
break;
case ClassMetadata::GENERATOR_TYPE_SEQUENCE:
// If there is no sequence definition yet, create a default definition
$definition = $class->sequenceGeneratorDefinition;
if (!$definition) {
$fieldName = $class->getSingleIdentifierFieldName();
$columnName = $class->getSingleIdentifierColumnName();
$quoted = isset($class->fieldMappings[$fieldName]['quoted']) || isset($class->table['quoted']);
$sequenceName = $class->getTableName() . '_' . $columnName . '_seq';
$definition = array('sequenceName' => $this->targetPlatform->fixSchemaElementName($sequenceName), 'allocationSize' => 1, 'initialValue' => 1);
if ($quoted) {
$definition['quoted'] = true;
}
$class->setSequenceGeneratorDefinition($definition);
}
$sequenceGenerator = new \Doctrine\ORM\Id\SequenceGenerator($this->em->getConfiguration()->getQuoteStrategy()->getSequenceName($definition, $class, $this->targetPlatform), $definition['allocationSize']);
$class->setIdGenerator($sequenceGenerator);
break;
case ClassMetadata::GENERATOR_TYPE_NONE:
$class->setIdGenerator(new \Doctrine\ORM\Id\AssignedGenerator());
break;
case ClassMetadata::GENERATOR_TYPE_UUID:
$class->setIdGenerator(new \Doctrine\ORM\Id\UuidGenerator());
break;
case ClassMetadata::GENERATOR_TYPE_TABLE:
throw new ORMException("TableGenerator not yet implemented.");
break;
case ClassMetadata::GENERATOR_TYPE_CUSTOM:
$definition = $class->customGeneratorDefinition;
if (!class_exists($definition['class'])) {
throw new ORMException("Can't instantiate custom generator : " . $definition['class']);
}
$class->setIdGenerator(new $definition['class']());
break;
default:
throw new ORMException("Unknown generator type: " . $class->generatorType);
}
}