本文整理汇总了PHP中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AbstractPlatform的用法示例。
在下文中一共展示了AbstractPlatform::prefersSequences方法的1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 \Doctrine\ORM\Mapping\ClassMetadata $class
*/
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.
$seqName = $this->targetPlatform instanceof Platforms\PostgreSQLPlatform ? $class->getTableName() . '_' . $class->columnNames[$class->identifier[0]] . '_seq' : null;
$class->setIdGenerator(new \Doctrine\ORM\Id\IdentityGenerator($seqName));
break;
case ClassMetadata::GENERATOR_TYPE_SEQUENCE:
// If there is no sequence definition yet, create a default definition
$definition = $class->sequenceGeneratorDefinition;
if (!$definition) {
$sequenceName = $class->getTableName() . '_' . $class->getSingleIdentifierColumnName() . '_seq';
$definition['sequenceName'] = $this->targetPlatform->fixSchemaElementName($sequenceName);
$definition['allocationSize'] = 1;
$definition['initialValue'] = 1;
$class->setSequenceGeneratorDefinition($definition);
}
$sequenceGenerator = new \Doctrine\ORM\Id\SequenceGenerator($definition['sequenceName'], $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);
}
}