/**
* getter of attribute dbPlatform
* @return DbPlatform
*/
public function getDbPlatform()
{
try {
if (!is_a($this->dbPlatform, "DbPlatform")) {
try {
$dbSelector = new DbSelector();
$this->setDbPlatform($dbSelector->getPlatform($this->getTask(), $this));
} catch (DbControlException $e) {
throw $e;
}
}
return $this->dbPlatform;
} catch (Exception $e) {
throw $e;
}
}
/**
* returns concrete QueryBuilderPlatform for platform attached to specified task
* @return QueryBuilderPlatform
*/
protected function getQueryBuilderPlatform()
{
try {
if ($this->queryBuilderPlatform instanceof QueryBuilderPlatform) {
return $this->queryBuilderPlatform;
}
$dbSelector = new DbSelector();
return $this->queryBuilderPlatform = $dbSelector->getQueryBuilderPlatform($this->task);
} catch (Exception $e) {
throw $e;
}
}
/**
* ckecks if table exists in database yet
* @return bool
* @throws Exception
*/
protected function doesTableExistsInDatabase()
{
try {
$className = get_class($this);
if (array_key_exists($className, self::$doesTableExistsInDatabaseByTypes) && is_bool(self::$doesTableExistsInDatabaseByTypes[$className])) {
return self::$doesTableExistsInDatabaseByTypes[$className];
}
if (strlen($this->getClassVar("dbName", true)) > 0) {
$schema = $this->getClassVar("dbName");
} else {
$dbSelector = new DbSelector();
$schema = $dbSelector->getTaskSchema(self::$task);
}
$value = $this->getDb()->initiateQuery($this->getQueryBuilder()->getDoesTableExists($this->getClassVar("tableName"), $schema))->getNumRows() > 0;
return self::$doesTableExistsInDatabaseByTypes[$className] = $value;
} catch (Exception $e) {
throw $e;
}
}
