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BUGFIX #4605 DataObject::newClassInstance() should repopulate it's defaults after changing to an instance of a different class, otherwise databases will complain of NULL values being written to columns that don't accept NULL values.

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git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/trunk@88956 467b73ca-7a2a-4603-9d3b-597d59a354a9
This commit is contained in:
Sean Harvey 2009-10-14 06:35:45 +00:00
parent 57ab419736
commit 559bbfcca8
5 changed files with 19 additions and 7 deletions
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15
core/model/DataObject.php
View File

@ -410,11 +410,16 @@ class DataObject extends ViewableData implements DataObjectInterface, i18nEntity
}
/**
* Create a new instance of a different class from this object's record
* Create a new instance of a different class from this object's record.
* This is useful when dynamically changing the type of an instance. Specifically,
* it ensures that the instance of the class is a match for the className of the
* record. Don't set the {@link DataObject->class} or {@link DataObject->ClassName}
* property manually before calling this method, as it will confuse change detection.
*
* If the new class is different to the original class, defaults are populated again
* because this will only occur automatically on instantiation of a DataObject if
* there is no record, or the record has no ID. In this case, we do have an ID but
* we still need to repopulate the defaults.
*
* @param string $newClassName The name of the new class
*
@ -425,12 +430,14 @@ class DataObject extends ViewableData implements DataObjectInterface, i18nEntity
$newInstance = new $newClassName(array_merge(
$this->record,
array(
'ClassName'=>$originalClass,
'RecordClassName'=>$originalClass,
'ClassName' => $originalClass,
'RecordClassName' => $originalClass,
)
));
if($newClassName != $this->ClassName) {
if($newClassName != $originalClass) {
$newInstance->setClassName($newClassName);
$newInstance->populateDefaults();
$newInstance->forceChange();
}

4
core/model/RedirectorPage.php
View File

@ -16,6 +16,10 @@ class RedirectorPage extends Page {
"ExternalURL" => "Varchar(255)",
);
static $defaults = array(
"RedirectionType" => "Internal"
);
static $has_one = array(
"LinkTo" => "SiteTree",
);

1
core/model/Translatable.php
View File

@ -767,6 +767,7 @@ class Translatable extends DataObjectDecorator implements PermissionProvider {
if($translations) foreach($translations as $translation) {
$translation->setClassName($this->owner->ClassName);
$translation = $translation->newClassInstance($translation->ClassName);
$translation->populateDefaults();
$translation->forceChange();
$translation->write();
}

2
tests/DataObjectTest.php
View File

@ -641,9 +641,9 @@ class DataObjectTest extends SapphireTest {
$changedFields = $changedPage->getChangedFields();
// Don't write the record, it will reset changed fields
$this->assertType('RedirectorPage', $changedPage);
$this->assertEquals($changedPage->ClassName, 'RedirectorPage');
$this->assertEquals($changedPage->RedirectionType, 'Internal');
//$this->assertEquals($changedPage->RecordClassName, 'RedirectorPage');
$this->assertContains('ClassName', array_keys($changedFields));
$this->assertEquals($changedFields['ClassName']['before'], 'Page');

4
tests/model/TranslatableTest.php
View File

@ -684,8 +684,8 @@ class TranslatableTest extends FunctionalTest {
$translatedPageID = $translatedPage->ID;
// change page type
$origPage->ClassName = 'RedirectorPage';
$origPage->write();
$newPage = $origPage->newClassInstance('RedirectorPage');
$newPage->write();
// re-fetch original page with new instance
$origPageChanged = DataObject::get_by_id('RedirectorPage', $origPageID);