The Active Record Pattern
class ActiveRecordTestCase extends UnitTestCase { // ... function testCreateById() { $link = $this->add( ‘http://blog.casey-sweat.us/’, ‘My Blog’, ‘Where I write about stuff’, ‘php’); $this->assertEqual(1, $link->getId()); $link2 = new Bookmark(1); $this->assertIsA($link2, ‘Bookmark’); $this->assertEqual($link, $link2); } }
This test passes an ID to the constructor, something the existing tests do not do. Passing an ID has to be optional, because existing tests that create new, empty Bookmark instances must continue to work. Here’s some code to realize the requirements of the test(s):
class Bookmark { // ... const SELECT_BY_ID = ‘select * from bookmark where id = ?’; public function __construct($id=false) { $this-> >conn DB::conn(); if ($id) { $rs = $this-> >conn-> >execute( self::SELECT_BY_ID ,array((int)$id)); if ($rs) { $row = $rs-> >fetchRow(); foreach($row as $field => $value) { $this-> >$field = $value; } } else { >conn-> >errorMsg()); trigger_error(‘DB Error: ‘.$this-> } } } // ... }
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