/**
* Builds a new CDbMetadata object. This object stores all the metadata
* relative to the given table, extracting more information from the
* core CDbTableMetadata object that the framework provides.
*
* @param CDbMetadataFactory $factory The factory that created this object
* @param CDbTableSchema $schema the table from which we work on
*/
public function __construct(CDbMetadataFactory $factory, CDbTableSchema $schema)
{
$this->_name = $schema->name;
$this->_raw_name = $schema->rawName;
$this->_sequence_name = $schema->sequenceName;
foreach ($schema->columns as $column) {
$this->_columns[] = $factory->createDbColumnMetadata($column);
}
if (is_array($schema->primaryKey)) {
$this->_primary_key = new CCompositePrimaryKey($schema->primaryKey, $this->_columns);
} elseif ($schema->primaryKey !== null) {
$this->_primary_key = new CSimplePrimaryKey($schema->primaryKey, $this->_columns);
}
foreach ($schema->foreignKeys as $foreignKey) {
$this->_foreign_keys[] = new CForeignKey($foreignKey, $this->_columns);
}
}
/**
* Generates a new additional metadata information from a given active
* record model.
*
* @param CActiveRecord $record
* @return IDbMetadata
*/
public static function getMetadata(CActiveRecord $record)
{
$factory = new CDbMetadataFactory();
return $factory->createDbMetadata($record->getMetaData()->tableSchema);
}
