File: DATA/MySQL5/PrimaryKeyIndexingStrategy.php - DATA

File:

DATA/MySQL5/PrimaryKeyIndexingStrategy.php

Role:

Class source

Content type:

text/plain

Description:

Strategy for mapping array offsets to primary key values.

Class:

DATA
Access data stored in MySQL tables like arrays

Contents:

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<?php

/**

 * @package DATA_MySQL5

 */



/**

 * Strategy for mapping array offsets to primary key values.

 */

class DATA_MySQL5_PrimaryKeyIndexingStrategy implements DATA_AssociativeIndexingStrategy {

    /**

     * Stores table name on construction for future operations.

     * @var string

     */

    protected $table;

    

    /**

     * Constructor.

     * 

     * @param string $table The table name.

     */

    public function __construct($table) {

        $this->table = $table;

    }

    

    public function isSingleRowIndexing() {

        return true;

    }

    

    protected function getIndexField() {

        $keys = DATA_MySQL5_Schema::getPrimaryKey($this->table);

        return $keys[0];

    }

    

    public function inboxRowOffset($row) {

        $indexField = $this->getIndexField();

        try {

            return DATA_MySQL5_Schema::getSQLTypeFactory($this->table, $indexField)->inbox($row);

        } catch (DATA_SQLTypeConstraintFailed $exception) {

            $exception->setTable($this->table);

            $exception->setField($indexField);

            throw $exception;

        }

    }

    

    public function buildWhereConditions($row) {

        $indexField = $this->getIndexField();

        return "`{$indexField}` = " . DATA_MySQL5_Access::prepareData($row);

    }

    

    public function getAdditionalInsertFields($row) {

        return array(

            $this->getIndexField() => $row

        );

    }

}

?>

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