silverstripe-framework/tests/model/HasManyListTest.php

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<?php
class HasManyListTest extends SapphireTest {
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// Borrow the model from DataObjectTest
protected static $fixture_file = 'DataObjectTest.yml';
protected $extraDataObjects = array(
'DataObjectTest_Team',
'DataObjectTest_SubTeam',
'DataObjectTest_Player',
'DataObjectTest_TeamComment',
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'ManyManyListTest_Product',
'ManyManyListTest_Category',
);
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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->Comments()->column('ID'));
}
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/**
* Test that related objects can be removed from a relation
*/
public function testRemoveRelation() {
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// 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')
);
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// Test that each team has the correct fans
$team1 = $this->objFromFixture('DataObjectTest_Team', 'team1');
$team2 = $this->objFromFixture('DataObjectTest_Team', 'team2');
$this->assertEquals(array('Bob', 'Joe'), $team1->Comments()->sort('Name')->column('Name'));
$this->assertEquals(array('Phil'), $team2->Comments()->sort('Name')->column('Name'));
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// Test that removing comments from unrelated team has no effect
$team1comment = $this->objFromFixture('DataObjectTest_TeamComment', 'comment1');
$team2comment = $this->objFromFixture('DataObjectTest_TeamComment', 'comment3');
$team1->Comments()->remove($team2comment);
$team2->Comments()->remove($team1comment);
$this->assertEquals(array('Bob', 'Joe'), $team1->Comments()->sort('Name')->column('Name'));
$this->assertEquals(array('Phil'), $team2->Comments()->sort('Name')->column('Name'));
$this->assertEquals($team1->ID, $team1comment->TeamID);
$this->assertEquals($team2->ID, $team2comment->TeamID);
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// Test that removing items from the related team resets the has_one relations on the fan
$team1comment = $this->objFromFixture('DataObjectTest_TeamComment', 'comment1');
$team2comment = $this->objFromFixture('DataObjectTest_TeamComment', 'comment3');
$team1->Comments()->remove($team1comment);
$team2->Comments()->remove($team2comment);
$this->assertEquals(array('Bob'), $team1->Comments()->sort('Name')->column('Name'));
$this->assertEquals(array(), $team2->Comments()->sort('Name')->column('Name'));
$this->assertEmpty($team1comment->TeamID);
$this->assertEmpty($team2comment->TeamID);
}
}