silverstripe-framework/tests/model/PolymorphicHasManyListTest.php

<?php

use SilverStripe\Dev\SapphireTest;

/**
 * Tests the PolymorphicHasManyList class
 *
 * @see PolymorphicHasManyList
 *
 * @todo Complete
 *
 * @package framework
 * @subpackage tests
 */
class PolymorphicHasManyListTest extends SapphireTest {

	// Borrow the model from DataObjectTest
	protected static $fixture_file = 'DataObjectTest.yml';

	public function setUpOnce() {
		$this->extraDataObjects = DataObjectTest::$extra_data_objects;
		parent::setUpOnce();
	}

	public function testRelationshipEmptyOnNewRecords() {
		// Relies on the fact that (unrelated) comments exist in the fixture file already
		$newTeam = new DataObjectTest_Team(); // has_many Comments
		$this->assertEquals(array(), $newTeam->Fans()->column('ID'));
	}

	/**
	 * Test that DataList::relation works with PolymorphicHasManyList
	 */
	public function testFilterRelation() {

		// Check that expected teams exist
		$list = DataObjectTest_Team::get();
		$this->assertEquals(
			array('Subteam 1', 'Subteam 2', 'Subteam 3', 'Team 1', 'Team 2', 'Team 3'),
			$list->sort('Title')->column('Title')
		);

		// Check that fan list exists
		$fans = $list->relation('Fans');
		$this->assertEquals(array('Damian', 'Mitch', 'Richard'), $fans->sort('Name')->column('Name'));

		// Modify list of fans and retest
		$team1 = $this->objFromFixture('DataObjectTest_Team', 'team1');
		$subteam1 = $this->objFromFixture('DataObjectTest_SubTeam', 'subteam1');
		$newFan1 = DataObjectTest_Fan::create();
		$newFan1->Name = 'Bobby';
		$newFan1->write();
		$newFan2 = DataObjectTest_Fan::create();
		$newFan2->Name = 'Mindy';
		$newFan2->write();
		$team1->Fans()->add($newFan1);
		$subteam1->Fans()->add($newFan2);
		$fans = DataObjectTest_Team::get()->relation('Fans');
		$this->assertEquals(array('Bobby', 'Damian', 'Richard'), $team1->Fans()->sort('Name')->column('Name'));
		$this->assertEquals(array('Mindy', 'Mitch'), $subteam1->Fans()->sort('Name')->column('Name'));
		$this->assertEquals(array('Bobby', 'Damian', 'Mindy', 'Mitch', 'Richard'), $fans->sort('Name')->column('Name'));
	}

	/**
	 * Test that related objects can be removed from a relation
	 */
	public function testRemoveRelation() {

		// Check that expected teams exist
		$list = DataObjectTest_Team::get();
		$this->assertEquals(
			array('Subteam 1', 'Subteam 2', 'Subteam 3', 'Team 1', 'Team 2', 'Team 3'),
			$list->sort('Title')->column('Title')
		);

		// Test that each team has the correct fans
		$team1 = $this->objFromFixture('DataObjectTest_Team', 'team1');
		$subteam1 = $this->objFromFixture('DataObjectTest_SubTeam', 'subteam1');
		$this->assertEquals(array('Damian', 'Richard'), $team1->Fans()->sort('Name')->column('Name'));
		$this->assertEquals(array('Mitch'), $subteam1->Fans()->sort('Name')->column('Name'));

		// Test that removing items from unrelated team has no effect
		$team1fan = $this->objFromFixture('DataObjectTest_Fan', 'fan1');
		$subteam1fan = $this->objFromFixture('DataObjectTest_Fan', 'fan4');
		$team1->Fans()->remove($subteam1fan);
		$subteam1->Fans()->remove($team1fan);
		$this->assertEquals(array('Damian', 'Richard'), $team1->Fans()->sort('Name')->column('Name'));
		$this->assertEquals(array('Mitch'), $subteam1->Fans()->sort('Name')->column('Name'));
		$this->assertEquals($team1->ID, $team1fan->FavouriteID);
		$this->assertEquals('DataObjectTest_Team', $team1fan->FavouriteClass);
		$this->assertEquals($subteam1->ID, $subteam1fan->FavouriteID);
		$this->assertEquals('DataObjectTest_SubTeam', $subteam1fan->FavouriteClass);

		// Test that removing items from the related team resets the has_one relations on the fan
		$team1fan = $this->objFromFixture('DataObjectTest_Fan', 'fan1');
		$subteam1fan = $this->objFromFixture('DataObjectTest_Fan', 'fan4');
		$team1->Fans()->remove($team1fan);
		$subteam1->Fans()->remove($subteam1fan);
		$this->assertEquals(array('Richard'), $team1->Fans()->sort('Name')->column('Name'));
		$this->assertEquals(array(), $subteam1->Fans()->sort('Name')->column('Name'));
		$this->assertEmpty($team1fan->FavouriteID);
		$this->assertEmpty($team1fan->FavouriteClass);
		$this->assertEmpty($subteam1fan->FavouriteID);
		$this->assertEmpty($subteam1fan->FavouriteClass);
	}
}