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PHP AbstractPlatform::prefersSequences方法代码示例

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);
     }
 }
开发者ID:davidbui2,项目名称:doctrine2,代码行数:62,代码来源:ClassMetadataFactory.php


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