问题
I have this Alias entity:
use Gedmo\Timestampable\Traits\TimestampableEntity;
class Alias
{
use IdentifierAutogeneratedTrait;
use TimestampableEntity;
use ActiveTrait;
/**
* @var string
* @ORM\Column(type="string", length=150)
*/
private $name;
/**
* Command associated to the alias.
*
* @var Command[]
* @ORM\ManyToMany(targetEntity="Command", mappedBy="aliases", cascade={"persist"})
*/
private $commands;
...
}
And I have this Admin controller:
class AliasAdmin extends Admin
{
protected function configureFormFields(FormMapper $formMapper)
{
$formMapper
->add('name', null, array('required' => true))
->add('active', null, array('required' => false));
}
...
public function prePersist($alias)
{
// remove extra white spaces
$noWhiteSpaces = str_replace(' ', '', $alias->getName());
// split into several names
$aliasArr = explode(',', $noWhiteSpaces);
}
public function preUpdate($alias)
{
...
}
}
When I am adding a new Alias on the view - meaning the form itself - I can write one value on the name input field as for example: value1 or I can write multiple values comma separated: value1, value2, value3, value4. If I have only one value on the name field when I submit the form then will be no problems but if I have more than one comma separated as the second example then I should check for them on prePersist/preUpdate method in order to split them and create one Alias per name, how I can do this? If you take a look to the prePersist method you will see what I am talking about more clear about how to create a new Alias per name in the new $aliasArr, any help?
Update: TimestampableEntity is not processed, why?
After tried the solution by @m-khalid-junaid I end with the error below due to NOT NULL constraint but I don't know why. Take a look to the code:
class AliasAdminController extends Controller
{
/**
* {@inheritdoc}
*/
public function createAction(Request $request = null)
{
// the key used to lookup the template
$templateKey = 'edit';
if (false === $this->admin->isGranted('CREATE')) {
throw new AccessDeniedException();
}
$object = $this->admin->getNewInstance();
$this->admin->setSubject($object);
/** @var $form \Symfony\Component\Form\Form */
$form = $this->admin->getForm();
$form->setData($object);
if ($this->getRestMethod() == 'POST') {
$form->submit($this->get('request'));
$isFormValid = $form->isValid();
// persist if the form was valid and if in preview mode the preview was approved
if ($isFormValid && (!$this->isInPreviewMode() || $this->isPreviewApproved())) {
if (false === $this->admin->isGranted('CREATE', $object)) {
throw new AccessDeniedException();
}
try {
$aliasArr = $this->toStrings($object->getName());
if (count($aliasArr) > 1) {
$object->setName($aliasArr[0]);
$object = $this->admin->create($object);
unset($aliasArr[0]);
$entityManager = $this->getDoctrine()->getManager();
foreach ($aliasArr as $alias) {
$newAlias = new Alias();
$newAlias->setName($alias);
$entityManager->persist($newAlias);
}
$entityManager->flush();
} else {
$object = $this->admin->create($object);
}
if ($this->isXmlHttpRequest()) {
return $this->renderJson(array(
'result' => 'ok',
'objectId' => $this->admin->getNormalizedIdentifier($object),
));
}
$this->addFlash(
'sonata_flash_success',
$this->admin->trans(
'flash_create_success',
array('%name%' => $this->escapeHtml($this->admin->toString($object))),
'SonataAdminBundle'
)
);
// redirect to edit mode
return $this->redirectTo($object);
} catch (ModelManagerException $e) {
$this->logModelManagerException($e);
$isFormValid = false;
}
}
// show an error message if the form failed validation
if (!$isFormValid) {
if (!$this->isXmlHttpRequest()) {
$this->addFlash(
'sonata_flash_error',
$this->admin->trans(
'flash_create_error',
array('%name%' => $this->escapeHtml($this->admin->toString($object))),
'SonataAdminBundle'
)
);
}
} elseif ($this->isPreviewRequested()) {
// pick the preview template if the form was valid and preview was requested
$templateKey = 'preview';
$this->admin->getShow();
}
}
$view = $form->createView();
// set the theme for the current Admin Form
$this->get('twig')->getExtension('form')->renderer->setTheme($view, $this->admin->getFormTheme());
return $this->render($this->admin->getTemplate($templateKey), array(
'action' => 'create',
'form' => $view,
'object' => $object,
));
}
/**
* {@inheritdoc}
*/
public function editAction($id = null)
{
// the key used to lookup the template
$templateKey = 'edit';
$id = $this->get('request')->get($this->admin->getIdParameter());
$object = $this->admin->getObject($id);
if (!$object) {
throw new NotFoundHttpException(sprintf('unable to find the object with id : %s', $id));
}
if (false === $this->admin->isGranted('EDIT', $object)) {
throw new AccessDeniedException();
}
$this->admin->setSubject($object);
/** @var $form \Symfony\Component\Form\Form */
$form = $this->admin->getForm();
$form->setData($object);
if ($this->getRestMethod() == 'POST') {
$form->submit($this->get('request'));
$isFormValid = $form->isValid();
// persist if the form was valid and if in preview mode the preview was approved
if ($isFormValid && (!$this->isInPreviewMode() || $this->isPreviewApproved())) {
try {
$aliasArr = $this->toStrings($object->getName());
if (count($aliasArr) > 1) {
$object->setName($aliasArr[0]);
$object = $this->admin->update($object);
unset($aliasArr[0]);
$entityManager = $this->getDoctrine()->getManager();
foreach ($aliasArr as $alias) {
$newAlias = new Alias();
$newAlias->setName($alias);
$entityManager->persist($newAlias);
}
$entityManager->flush();
} else {
$object = $this->admin->update($object);
}
if ($this->isXmlHttpRequest()) {
return $this->renderJson(array(
'result' => 'ok',
'objectId' => $this->admin->getNormalizedIdentifier($object),
));
}
$this->addFlash(
'sonata_flash_success',
$this->admin->trans(
'flash_edit_success',
array('%name%' => $this->escapeHtml($this->admin->toString($object))),
'SonataAdminBundle'
)
);
// redirect to edit mode
return $this->redirectTo($object);
} catch (ModelManagerException $e) {
$this->logModelManagerException($e);
$isFormValid = false;
}
}
// show an error message if the form failed validation
if (!$isFormValid) {
if (!$this->isXmlHttpRequest()) {
$this->addFlash(
'sonata_flash_error',
$this->admin->trans(
'flash_edit_error',
array('%name%' => $this->escapeHtml($this->admin->toString($object))),
'SonataAdminBundle'
)
);
}
} elseif ($this->isPreviewRequested()) {
// enable the preview template if the form was valid and preview was requested
$templateKey = 'preview';
$this->admin->getShow();
}
}
$view = $form->createView();
// set the theme for the current Admin Form
$this->get('twig')->getExtension('form')->renderer->setTheme($view, $this->admin->getFormTheme());
return $this->render($this->admin->getTemplate($templateKey), array(
'action' => 'edit',
'form' => $view,
'object' => $object,
));
}
private function logModelManagerException($e)
{
$context = array('exception' => $e);
if ($e->getPrevious()) {
$context['previous_exception_message'] = $e->getPrevious()->getMessage();
}
$this->getLogger()->error($e->getMessage(), $context);
}
private function toStrings($string)
{
$noWhiteSpaces = str_replace(' ', '', $string);
return explode(',', $noWhiteSpaces);
}
}
And this is the error:
[2016-02-28 11:10:36] doctrine.DEBUG: "START TRANSACTION" [] []
[2016-02-28 11:10:36] doctrine.DEBUG: INSERT INTO cm_alias (name, created_at, updated_at, active) VALUES (?, ?, ?, ?) {"1":"alias1","2":null,"3":null,"4":true} []
[2016-02-28 11:10:36] doctrine.DEBUG: "ROLLBACK" [] []
[2016-02-28 11:10:36] app.ERROR: Failed to create object: PlatformAdminBundle\Entity\Alias {"exception":"[object] (Sonata\\AdminBundle\\Exception\\ModelManagerException(code: 0): Failed to create object: PlatformAdminBundle\\Entity\\Alias at /var/www/html/platform.sonata/vendor/sonata-project/doctrine-orm-admin-bundle/Model/ModelManager.php:142, Doctrine\\DBAL\\Exception\\NotNullConstraintViolationException(code: 0): An exception occurred while executing 'INSERT INTO cm_alias (name, created_at, updated_at, active) VALUES (?, ?, ?, ?)' with params [\"alias1\", null, null, 1]:\n\nSQLSTATE[23000]: Integrity constraint violation: 1048 Column 'created_at' cannot be null at /var/www/html/platform.sonata/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/AbstractMySQLDriver.php:112, Doctrine\\DBAL\\Driver\\PDOException(code: 23000): SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'created_at' cannot be null at /var/www/html/platform.sonata/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOStatement.php:93, PDOException(code: 23000): SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'created_at' cannot be null at /var/www/html/platform.sonata/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOStatement.php:91)","previous_exception_message":"An exception occurred while executing 'INSERT INTO cm_alias (name, created_at, updated_at, active) VALUES (?, ?, ?, ?)' with params [\"alias1\", null, null, 1]:\n\nSQLSTATE[23000]: Integrity constraint violation: 1048 Column 'created_at' cannot be null"} []
Why TimestampableEntity trait is not processed by the new Admin controller? What I am missing here?
回答1:
If you want to add same object with different aliases its better to create a CRUDController controller for your admin class, Once you have your CRUDController you can override createAction & editAction of base class and implement your logic here prePresist/preUpdate events for your current object to play with to create copies for your object with different information use a controller. I have mentioned only necessary code below you can copy from sonata's CRUDController and implement the same logic in editAction
public function createAction(Request $request = null)
{
// .. some code here copy from base class
try {
$noWhiteSpaces = str_replace(' ', '', $object->getName());
// split into several names
$aliases = explode(',', $noWhiteSpaces);
if (count($aliases) > 1) {
$object->setName($aliases[0]);
$object = $this->admin->create($object);
unset($aliases[0]);
$DM = $this->getDoctrine()->getManager();
foreach ($aliases as $alias) {
$newAlias = new Alias();
$newAlias->setName($alias);
$DM->persist($newAlias);
}
$DM->flush();
} else {
$object = $this->admin->create($object);
}
} catch (ModelManagerException $e) {
$this->handleModelManagerException($e);
$isFormValid = false;
}
// .. some code here copy from base class
}
Edit for created_at not null error
You need to define a constructor function in your alias entity and there initialize your createdAt property with DateTime object
/**
* Constructor
*/
public function __construct()
{
$this->createdAt = new \DateTime('now');
}
回答2:
Maybe something like this:
public function prePersist($alias)
{
// remove extra white spaces
$noWhiteSpaces = str_replace(' ', '', $alias->getName());
// split into several names
$aliasArr = explode(',', $noWhiteSpaces);
$currentAliasName = $aliasArr[0]; // Use the first name for the Alias created by your admin class.
$alias->setName($currentAliasName);
unset($aliasArr[0]);
$em = $this->getConfigurationPool()->getContainer()->getDoctrine()->getManager();
foreach ($aliasArr as $aliasName) {
$newAlias = new Alias();
$newAlias->setName($aliasName);
$newAlias->setActive(?);
$em->persist($newAlias);
$em->flush($newAlias);
}
}
来源：https://stackoverflow.com/questions/35684643/can-i-use-prepersist-preupdate-in-sonata-admin-controller-to-persist-more-than-o