copying test case for ticket 749 to 0.10 and branch - thanks dbrewer

tests/Ticket/749TestCase.php

+<?php
+/**
+ * Doctrine_Ticket_749_TestCase
+ *
+ * @package     Doctrine
+ * @author      David Brewer <dbrewer@secondstory.com>
+ * @license     http://www.opensource.org/licenses/lgpl-license.php LGPL
+ * @category    Object Relational Mapping
+ * @link        www.phpdoctrine.com
+ * @since       1.0
+ * @version     $Revision$
+ *
+ * This test case demonstrates a problem with column aggregation inheritance
+ * in Doctrine 0.9. The high level summary is that it is possible to make
+ * it work in general -- if class B is a subclass of class A, you can select
+ * from class A and get back objects of class B.  However, those objects do
+ * not have the related objects of class B, and in fact an exception is
+ * thrown when you try to access those related objects.
+ *
+ * This test case should not probably be applied to trunk and possibly not
+ * to 0.10 branch.  I'm not sure it's even possible to fix in 0.9 but it is
+ * an issue that keeps arising for me so it seemed worth a test case.
+ */
+
+class Doctrine_Ticket_749_TestCase extends Doctrine_UnitTestCase
+{
+    public function prepareTables()
+    {
+        $this->tables = array('Parent749', 'Record749', 'RelatedRecord749');
+        parent::prepareTables();
+    }
+
+    public function prepareData() 
+    {
+        $record = new Record749();
+        $record['title'] = 'Test Record 1';
+        $record['Related']['content'] = 'Test Content 1';
+        $record->save();
+
+        $record = new Record749();
+        $record['title'] = 'Test Record 2';
+        $record['Related']['content'] = 'Test Content 2';
+        $record->save();
+    }
+
+    public function testSelectDataFromSubclassAsCollection()
+    {
+        $records = Doctrine_Query::create()->query('
+            FROM Record749 r ORDER BY r.title                                           
+        ', array());
+        
+        $this->verifyRecords($records);
+    }
+    
+    public function testSelectDataFromParentClassAsCollection()
+    {
+        $records = Doctrine_Query::create()->query('
+            FROM Parent749 p ORDER BY p.title                                           
+        ', array());
+        
+        $this->verifyRecords($records);
+    }
+
+    /**
+     * This method is used by both tests, as the collection of records should
+     * be identical for both of them if things are working properly.
+     */
+    private function verifyRecords ($records) {
+        $expected_values = array(
+            array('title'=>'Test Record 1', 'content'=>'Test Content 1'),
+            array('title'=>'Test Record 2', 'content'=>'Test Content 2'),
+        );
+
+        foreach ($records as $record) {
+            $this->assertTrue($record instanceof Record749);
+            $expected = array_shift($expected_values);
+            $this->assertEqual($record['title'], $expected['title']);
+            try {
+                $this->assertEqual($record['Related']['content'], $expected['content']);
+            } catch (Exception $e) {
+                $this->fail('Caught exception when trying to get related content.');
+            }
+        }        
+    }
+}
+
+class Parent749 extends Doctrine_Record
+{
+  public function setTableDefinition()
+  {
+    $this->setTableName('mytable');
+    $this->hasColumn('id', 'integer', 4, array (
+      'primary' => true,
+      'autoincrement' => true,
+      'notnull' => true,
+    ));
+
+    $this->hasColumn('title', 'string', 255, array ());
+    $this->hasColumn('type', 'integer', 11, array ());
+
+    $this->option('subclasses', array('Record749'));
+  }
+
+  public function setUp()
+  {
+  }
+}
+
+class Record749 extends Parent749
+{
+  public function setTableDefinition()
+  {
+    parent::setTableDefinition();
+    $this->setTableName('mytable');
+  }
+
+  public function setUp()
+  {
+    parent::setUp();
+    $this->hasOne('RelatedRecord749 as Related', array('local' => 'id',
+                                                    'foreign' => 'record_id'));
+
+    $this->setInheritanceMap(array('type' => '1'));
+  }
+}
+
+class RelatedRecord749 extends Doctrine_Record
+{
+  public function setTableDefinition()
+  {
+    $this->hasColumn('id', 'integer', 4, array (
+      'primary' => true,
+      'autoincrement' => true,
+      'notnull' => true,
+    ));
+
+    $this->hasColumn('content', 'string', 255, array ());
+    $this->hasColumn('record_id', 'integer', null, array ('unique' => true,));
+  }
+
+  public function setUp()
+  {
+    $this->hasOne('Record749 as Record', array('local' => 'record_id',
+                                  'foreign' => 'id',
+                                  'onDelete' => 'cascade'));
+  }
+
+}
+