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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 27 | PointedEar | 1 | <?php |
| 2 | |||
| 51 | PointedEar | 3 | namespace PointedEars\PHPX\Db; |
| 4 | |||
| 49 | PointedEar | 5 | require_once __DIR__ . '/../AbstractModel.php'; |
| 29 | PointedEar | 6 | require_once __DIR__ . '/Table.php'; |
| 27 | PointedEar | 7 | |
| 8 | /** |
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| 9 | * Generic abstract database mapper class |
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| 10 | * |
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| 11 | * @author Thomas Lahn |
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| 12 | */ |
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| 51 | PointedEar | 13 | abstract class Mapper extends \PointedEars\PHPX\AbstractModel |
| 27 | PointedEar | 14 | { |
| 15 | /** |
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| 16 | * Class name of the associated table model |
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| 17 | * |
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| 18 | * @var string |
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| 19 | */ |
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| 20 | protected $_table = 'Table'; |
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| 49 | PointedEar | 21 | |
| 27 | PointedEar | 22 | protected $_dbTable; |
| 49 | PointedEar | 23 | |
| 27 | PointedEar | 24 | /** |
| 25 | * Sets the {@link Table} for this mapper |
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| 26 | * @param string|Table $dbTable |
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| 27 | * Class name of the new instance, or an existing instance |
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| 28 | * @throws Exception if <var>$dbTable</var> is not a <code>Table</code> |
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| 29 | */ |
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| 30 | public function setDbTable($table) |
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| 31 | { |
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| 32 | if (is_string($table)) |
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| 33 | { |
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| 34 | $table = new $table(); |
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| 35 | } |
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| 49 | PointedEar | 36 | |
| 27 | PointedEar | 37 | if (!($table instanceof Table)) { |
| 38 | throw new Exception('Invalid table data gateway provided'); |
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| 39 | } |
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| 49 | PointedEar | 40 | |
| 27 | PointedEar | 41 | $this->_dbTable = $table; |
| 42 | } |
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| 43 | |||
| 44 | /** |
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| 45 | * Gets the {@link Table} for this mapper |
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| 46 | * |
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| 47 | * @param string|Table $table |
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| 48 | * Class name of the new instance or an existing instance. |
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| 49 | * The default is the value of the <code>$_table</code> property. |
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| 50 | * @return Table |
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| 51 | * @throws Exception if <var>$dbTable</var> is not a <code>Table</code> |
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| 52 | * @see Mapper::setDbTable() |
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| 53 | */ |
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| 54 | public function getDbTable($table = null) |
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| 55 | { |
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| 56 | if (is_null($this->_dbTable)) |
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| 57 | { |
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| 58 | if (is_null($table)) |
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| 59 | { |
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| 60 | $table = $this->_table; |
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| 61 | } |
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| 49 | PointedEar | 62 | |
| 27 | PointedEar | 63 | $this->setDbTable($table); |
| 64 | } |
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| 49 | PointedEar | 65 | |
| 27 | PointedEar | 66 | return $this->_dbTable; |
| 67 | } |
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| 49 | PointedEar | 68 | |
| 27 | PointedEar | 69 | /** |
| 49 | PointedEar | 70 | * Returns the <code>Table</code> for this object. |
| 71 | * |
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| 72 | * @return Table |
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| 73 | */ |
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| 74 | public function getTable () |
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| 75 | { |
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| 76 | return $this->getDbTable(); |
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| 77 | } |
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| 78 | |||
| 79 | /** |
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| 27 | PointedEar | 80 | * Sorts an array of objects by the property of the nested object. |
| 81 | * To be used with the u*sort() functions. |
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| 82 | * |
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| 83 | * @param object $a First operand of the comparison |
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| 84 | * @param object $b Second operand of the comparison |
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| 85 | * @param string $property |
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| 86 | * Name of the property of the nested object by which to sort the outer array |
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| 87 | * @return int |
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| 88 | * 0 if <var>$a</var> and <var>$b</var> are "equal", |
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| 89 | * <code>-1</code> if <var>$a</var> is "less" than <var>$b</var>, |
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| 90 | * <code>1</code> otherwise. |
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| 91 | */ |
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| 92 | protected static function sortByProperty($a, $b, $property) |
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| 93 | { |
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| 94 | if ($a->$property === $b->$property) |
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| 95 | { |
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| 96 | return 0; |
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| 97 | } |
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| 49 | PointedEar | 98 | |
| 27 | PointedEar | 99 | return ($a->$property < $b->$property) ? -1 : 1; |
| 100 | } |
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| 101 | } |