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<?php |
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namespace SilverStripe\SsPak\DataExtractor; |
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use DB; |
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/** |
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* Connects to the SilverStripe Database object of a given SilverStripe project, |
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* in order to bulk save/load data |
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*/ |
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class DatabaseConnector |
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{ |
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private $basePath; |
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private $isConnected = false; |
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function __construct($basePath) { |
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$this->basePath = $basePath; |
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} |
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function connect() { |
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if ($this->isConnected) { |
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return; |
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} |
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$this->isConnected = true; |
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// Necessary for SilverStripe's _ss_environment.php loader to work |
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$_SERVER['SCRIPT_FILENAME'] = $this->basePath . '/dummy.php'; |
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global $databaseConfig; |
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// require composers autoloader |
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if (file_exists($this->basePath . '/vendor/autoload.php')) { |
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require_once $this->basePath . '/vendor/autoload.php'; |
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} |
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if (file_exists($this->basePath . '/framework/core/Core.php')) { |
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require_once($this->basePath . '/framework/core/Core.php'); |
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} elseif (file_exists($this->basePath . '/sapphire/core/Core.php')) { |
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require_once($this->basePath . '/sapphire/core/Core.php'); |
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} else { |
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throw new \LogicException("No framework/core/Core.php or sapphire/core/Core.php included in project. Perhaps $this->basePath is not a SilverStripe project?"); |
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} |
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// Connect to database |
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require_once('model/DB.php'); |
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if ($databaseConfig) { |
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DB::connect($databaseConfig); |
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} else { |
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throw new \LogicException("No \$databaseConfig found"); |
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} |
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} |
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function getDatabase() { |
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$this->connect(); |
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if(method_exists('DB', 'get_conn')) { |
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return DB::get_conn(); |
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} else { |
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return DB::getConn(); |
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} |
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} |
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/** |
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* Get a list of tables from the database |
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*/ |
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function getTables() { |
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$this->connect(); |
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if(method_exists('DB', 'table_list')) { |
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return DB::table_list(); |
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} else { |
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return DB::tableList(); |
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} |
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} |
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/** |
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* Get a list of tables from the database |
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*/ |
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function getFieldsForTable($tableName) { |
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$this->connect(); |
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if(method_exists('DB', 'field_list')) { |
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return DB::field_list($tableName); |
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} else { |
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return DB::fieldList($tableName); |
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} |
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} |
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/** |
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* Save the named table to the given table write |
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*/ |
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function saveTable($tableName, TableWriter $writer) { |
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$query = $this->getDatabase()->query("SELECT * FROM \"$tableName\""); |
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foreach ($query as $record) { |
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$writer->writeRecord($record); |
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} |
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$writer->finish(); |
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} |
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/** |
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* Save the named table to the given table write |
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*/ |
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function loadTable($tableName, TableReader $reader) { |
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$this->getDatabase()->clearTable($tableName); |
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$fields = $this->getFieldsForTable($tableName); |
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foreach($reader as $record) { |
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foreach ($record as $k => $v) { |
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if (!isset($fields[$k])) { |
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unset($record[$k]); |
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} |
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} |
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// TODO: Batch records |
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$manipulation = [ |
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$tableName => [ |
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'command' => 'insert', |
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'fields' => $record, |
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], |
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]; |
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DB::manipulate($manipulation); |
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} |
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} |
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} |
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silverstripe /
sspak
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Adding explicit visibility (
private,protected, orpublic) is generally recommend to communicate to other developers how, and from where this method is intended to be used.