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FIX: UnsavedRelationList first/last to return null if list is empty (fixes #11083)

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This commit is contained in:
Loz Calver 2023-12-04 11:28:51 +00:00
parent 6d903848ab
commit e28af9a5a7
2 changed files with 20 additions and 4 deletions
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8
src/ORM/UnsavedRelationList.php
View File

@ -239,11 +239,11 @@ class UnsavedRelationList extends ArrayList implements Relation
*/
public function first()
{
$item = reset($this->items);
$item = reset($this->items) ?: null;
if (is_numeric($item)) {
$item = DataObject::get_by_id($this->dataClass, $item);
}
if (!empty($this->extraFields[key($this->items)])) {
if ($item && !empty($this->extraFields[key($this->items)])) {
$item->update($this->extraFields[key($this->items)]);
}
return $item;
@ -256,8 +256,8 @@ class UnsavedRelationList extends ArrayList implements Relation
*/
public function last()
{
$item = end($this->items);
if (!empty($this->extraFields[key($this->items)])) {
$item = end($this->items) ?: null;
if ($item && !empty($this->extraFields[key($this->items)])) {
$item->update($this->extraFields[key($this->items)]);
}
return $item;

16
tests/php/ORM/UnsavedRelationListTest.php
View File

@ -310,4 +310,20 @@ class UnsavedRelationListTest extends SapphireTest
]
);
}
public function testFirstAndLast()
{
$object = new UnsavedRelationListTest\TestObject();
$children = $object->Children();
$this->assertNull($children->first(), 'Empty UnsavedRelationList should return null for first item.');
$this->assertNull($children->last(), 'Empty UnsavedRelationList should return null for last item.');
$children->add($firstChild = $this->objFromFixture(UnsavedRelationListTest\TestObject::class, 'ObjectA'));
$children->add($this->objFromFixture(UnsavedRelationListTest\TestObject::class, 'ObjectB'));
$children->add($lastChild = $this->objFromFixture(UnsavedRelationListTest\TestObject::class, 'ObjectC'));
$this->assertEquals($firstChild, $children->first(), 'Incorrect first item in UnsavedRelationList.');
$this->assertEquals($lastChild, $children->last(), 'Incorrect last item in UnsavedRelationList.');
}
}