ReflectionException with Symfony and Sonata, "Class does not exist" - php

Question

I'm experiencing a problem trying to fit my Entities in the Sonata Admin Bundle. I have something like 5 entities, which are finely listed and viewed in the bundle, but I cannot edit or create a new entry.
When I try to edit or create, I get a ReflectionException error:
Class does not exist
I tried in order to solve that problem to operate on namespaces (moving controller in the same namespace that Admin files, or so) or to tweak the Admin Controller in order to tell it about my entities ("->add('individual', 'entity', array('class' => 'Platform\ProjectBundle\Entity\Individual'))" instead of ->add('individual')).
My entity is named Biosample. Here is the Entity file:
<?php
namespace Platform\ProjectBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
use Doctrine\Common\Collections\ArrayCollection;
/**
* #ORM\Entity
* #ORM\Table(name="biosample")
*/
class Biosample
{
/**
* #ORM\Id
* #ORM\Column(type="integer")
* #ORM\GeneratedValue(strategy="AUTO")
*/
protected $id;
/**
* #ORM\ManyToOne(targetEntity="Individual", inversedBy="samples")
* #ORM\JoinColumn(name="individual_id", referencedColumnName="id")
*/
protected $individual;
/**
* #ORM\Column(type="string", length=100)
*/
protected $organ;
/**
* #ORM\Column(type="string", length=100)
*/
protected $sample_name;
/**
* #ORM\Column(type="string", nullable=true)
*/
protected $organ_location;
/**
* #ORM\Column(type="string")
*/
protected $tissue_type;
/**
* #ORM\Column(type="string", nullable=true)
*/
protected $tissue_subtype;
/**
* #ORM\Column(type="datetimetz")
*/
protected $sampling_date;
/**
* #ORM\Column(type="decimal", scale=3, nullable=true)
*/
protected $cellularity;
/**
* #ORM\Column(type="string", nullable=true)
*/
protected $conservation;
/**
* #ORM\Column(type="text", nullable=true)
*/
protected $description;
/**
* #ORM\ManyToMany(targetEntity="Project", mappedBy="biosamples")
*/
protected $projects;
public function __construct()
{
$this->projects = new ArrayCollection();
}
public function __toString()
{
return $this->sample_name;
}
/**
* Get id
*
* #return integer
*/
public function getId()
{
return $this->id;
}
/**
* Set organ
*
* #param string $organ
* #return Biosample
*/
public function setOrgan($organ)
{
$this->organ = $organ;
return $this;
}
/**
* Get organ
*
* #return string
*/
public function getOrgan()
{
return $this->organ;
}
/**
* Set organ_location
*
* #param string $organLocation
* #return Biosample
*/
public function setOrganLocation($organLocation)
{
$this->organ_location = $organLocation;
return $this;
}
/**
* Get organ_location
*
* #return string
*/
public function getOrganLocation()
{
return $this->organ_location;
}
/**
* Set tissue_type
*
* #param string $tissueType
* #return Biosample
*/
public function setTissueType($tissueType)
{
$this->tissue_type = $tissueType;
return $this;
}
/**
* Get tissue_type
*
* #return string
*/
public function getTissueType()
{
return $this->tissue_type;
}
/**
* Set tissue_subtype
*
* #param string $tissueSubtype
* #return Biosample
*/
public function setTissueSubtype($tissueSubtype)
{
$this->tissue_subtype = $tissueSubtype;
return $this;
}
/**
* Get tissue_subtype
*
* #return string
*/
public function getTissueSubtype()
{
return $this->tissue_subtype;
}
/**
* Set sampling_date
*
* #param \DateTime $samplingDate
* #return Biosample
*/
public function setSamplingDate($samplingDate)
{
$this->sampling_date = $samplingDate;
return $this;
}
/**
* Get sampling_date
*
* #return \DateTime
*/
public function getSamplingDate()
{
return $this->sampling_date;
}
/**
* Set cellularity
*
* #param string $cellularity
* #return Biosample
*/
public function setCellularity($cellularity)
{
$this->cellularity = $cellularity;
return $this;
}
/**
* Get cellularity
*
* #return string
*/
public function getCellularity()
{
return $this->cellularity;
}
/**
* Set conservation
*
* #param string $conservation
* #return Biosample
*/
public function setConservation($conservation)
{
$this->conservation = $conservation;
return $this;
}
/**
* Get conservation
*
* #return string
*/
public function getConservation()
{
return $this->conservation;
}
/**
* Set description
*
* #param string $description
* #return Biosample
*/
public function setDescription($description)
{
$this->description = $description;
return $this;
}
/**
* Get description
*
* #return string
*/
public function getDescription()
{
return $this->description;
}
/**
* Set individual
*
* #param \Platform\ProjectBundle\Entity\Individual $individual
* #return Biosample
*/
public function setIndividual(\Platform\ProjectBundle\Entity\Individual $individual = null)
{
$this->individual = $individual;
return $this;
}
/**
* Get individual
*
* #return \Platform\ProjectBundle\Entity\Individual
*/
public function getIndividual()
{
return $this->individual;
}
/**
* Add projects
*
* #param \Platform\ProjectBundle\Entity\Project $projects
* #return Biosample
*/
public function addProject(\Platform\ProjectBundle\Entity\Project $projects)
{
$this->projects[] = $projects;
return $this;
}
/**
* Remove projects
*
* #param \Platform\ProjectBundle\Entity\Project $projects
*/
public function removeProject(\Platform\ProjectBundle\Entity\Project $projects)
{
$this->projects->removeElement($projects);
}
/**
* Get projects
*
* #return \Doctrine\Common\Collections\Collection
*/
public function getProjects()
{
return $this->projects;
}
/**
* Set sample_name
*
* #param string $sampleName
* #return Biosample
*/
public function setSampleName($sampleName)
{
$this->sample_name = $sampleName;
return $this;
}
/**
* Get sample_name
*
* #return string
*/
public function getSampleName()
{
return $this->sample_name;
}
}`
Here is my BiosampleAdmin.php:
<?php
namespace Platform\ProjectBundle\Controller\Admin;
use Sonata\AdminBundle\Admin\Admin;
use Sonata\AdminBundle\Form\FormMapper;
use Sonata\AdminBundle\Datagrid\DatagridMapper;
use Sonata\AdminBundle\Datagrid\ListMapper;
use Sonata\AdminBundle\Show\ShowMapper;
use Knp\Menu\ItemInterface as MenuItemInterface;
use Platform\ProjectBundle\Entity\Biosample;
class BiosampleAdmin extends Admin
{
/**
* #param \Sonata\AdminBundle\Show\ShowMapper $showMapper
*
* #return void
*/
protected function configureShowFields(ShowMapper $showMapper)
{
$showMapper
->add('id')
->add('sample_name')
->add('individual', 'entity', array('class' => 'Platform\ProjectBundle\Entity\Individual'))
->add('organ')
->add('organ_location')
->add('tissue_type')
->add('tissue_subtype')
->add('sampling_date')
->add('cellularity')
->add('conservation')
->add('projects', 'entity', array('class' => 'Platform\ProjectBundle\Entity\Project'))
->add('description')
;
}
/**
* #param \Sonata\AdminBundle\Form\FormMapper $formMapper
*
* #return void
*/
protected function configureFormFields(FormMapper $formMapper)
{
$formMapper
->with('General')
->add('sample_name')
->add('individual')
->add('organ')
->add('organ_location')
->add('tissue_type')
->add('tissue_subtype')
->end()
->with('Miscelaneous')
->add('sampling_date')
->add('cellularity')
->add('conservation')
->end()
->with('Projects')
->add('projects')
->end()
->with('Description')
->add('description', 'sonata_type_model', array('multiple' => false))
->end()
;
}
/**
* #param \Sonata\AdminBundle\Datagrid\ListMapper $listMapper
*
* #return void
*/
protected function configureListFields(ListMapper $listMapper)
{
$listMapper
->addIdentifier('id')
->add('sample_name')
->add('individual')
->add('projects')
->add('organ')
->add('tissue')
->add('_action', 'actions', array(
'actions' => array(
'show' => array(),
'edit' => array(),
'delete' => array(),
)
))
;
}
/**
* #param \Sonata\AdminBundle\Datagrid\DatagridMapper $datagridMapper
*
* #return void
*/
protected function configureDatagridFilters(DatagridMapper $datagridMapper)
{
$datagridMapper
->add('sample_name')
->add('individual')
->add('projects')
;
}
}
Here is the admin controller:
<?php
namespace Platform\ProjectBundle\Controller;
use Sonata\AdminBundle\Controller\CRUDController as Controller;
use Platform\ProjectBundle\Entity\Biosample;
class BiosampleAdminController extends Controller
{
}
And if you need it, here my composer.json:
{
"name": "symfony/framework-standard-edition",
"license": "MIT",
"type": "project",
"description": "The \"Symfony Standard Edition\" distribution",
"autoload": {
"psr-0": { "": "src/", "SymfonyStandard": "app/" }
},
"require": {
"php": ">=5.3.3",
"symfony/symfony": "2.6.*",
"doctrine/orm": "~2.2,>=2.2.3,<2.5",
"doctrine/dbal": "<2.5",
"doctrine/doctrine-bundle": "~1.2",
"twig/extensions": "~1.0",
"symfony/assetic-bundle": "~2.3",
"symfony/swiftmailer-bundle": "~2.3",
"symfony/monolog-bundle": "~2.4",
"sensio/distribution-bundle": "~3.0,>=3.0.12",
"sensio/framework-extra-bundle": "~3.0,>=3.0.2",
"jms/security-extra-bundle": "~1.2",
"ircmaxell/password-compat": "~1.0.3",
"stof/doctrine-extensions-bundle": "~1.1#dev",
"friendsofsymfony/user-bundle": "~1.3",
"incenteev/composer-parameter-handler": "~2.0",
"nervo/yuicompressor": "2.4.8",
"sonata-project/admin-bundle": "~2.3",
"sonata-project/doctrine-orm-admin-bundle": "~2.3",
"sonata-project/easy-extends-bundle": "~2.1",
"sonata-project/user-bundle": "~2.2",
"knplabs/knp-menu-bundle": "~1.1",
"mopa/bootstrap-bundle": "~2",
"twbs/bootstrap-sass": "~3.3.0",
"knplabs/knp-paginator-bundle": "dev-master",
"knplabs/knp-menu": "~1.1",
"craue/formflow-bundle": "~2.0"
},
"require-dev": {
"sensio/generator-bundle": "~2.3"
},
"scripts": {
"post-root-package-install": [
"SymfonyStandard\\Composer::hookRootPackageInstall"
],
"post-install-cmd": [
"Incenteev\\ParameterHandler\\ScriptHandler::buildParameters",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::buildBootstrap",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::clearCache",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::installAssets",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::installRequirementsFile",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::removeSymfonyStandardFiles"
],
"post-update-cmd": [
"Incenteev\\ParameterHandler\\ScriptHandler::buildParameters",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::buildBootstrap",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::clearCache",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::installAssets",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::installRequirementsFile",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::removeSymfonyStandardFiles"
]
},
"config": {
"bin-dir": "bin"
},
"extra": {
"symfony-app-dir": "app",
"symfony-web-dir": "web",
"symfony-assets-install": "relative",
"incenteev-parameters": {
"file": "app/config/parameters.yml"
},
"branch-alias": {
"dev-master": "2.6-dev"
}
}
}
Finally, here's my service declaration and my config.yml file:
Service.yml:
services:
platform.project.admin.biosample:
class: Platform\ProjectBundle\Controller\Admin\BiosampleAdmin
tags:
- { name: sonata.admin, manager_type: orm, group: Project Manager, label: Biosample }
arguments: [null, Platform\ProjectBundle\Entity\Biosample, PlatformProjectBundle:BiosampleAdmin]
Config.yml:
imports:
- { resource: parameters.yml }
- { resource: security.yml }
- { resource: services.yml }
framework:
#esi: ~
translator: { fallbacks: ["%locale%"] }
secret: "%secret%"
router:
resource: "%kernel.root_dir%/config/routing.yml"
strict_requirements: ~
form: ~
csrf_protection: ~
validation: { enable_annotations: true }
templating:
engines: ['twig']
#assets_version: SomeVersionScheme
default_locale: "%locale%"
trusted_hosts: ~
trusted_proxies: ~
session:
# handler_id set to null will use default session handler from php.ini
handler_id: ~
fragments: ~
http_method_override: true
# Twig Configuration
twig:
debug: "%kernel.debug%"
strict_variables: "%kernel.debug%"
# Assetic Configuration
assetic:
debug: "%kernel.debug%"
use_controller: false
bundles: [ ]
#java: /usr/bin/java
filters:
cssrewrite: ~
#closure:
# jar: "%kernel.root_dir%/Resources/java/compiler.jar"
#yui_css:
# jar: "%kernel.root_dir%/Resources/java/yuicompressor-2.4.7.jar"
# Doctrine Configuration
doctrine:
dbal:
driver: "%database_driver%"
host: "%database_host%"
port: "%database_port%"
dbname: "%database_name%"
user: "%database_user%"
password: "%database_password%"
charset: UTF8
# if using pdo_sqlite as your database driver:
# 1. add the path in parameters.yml
# e.g. database_path: "%kernel.root_dir%/data/data.db3"
# 2. Uncomment database_path in parameters.yml.dist
# 3. Uncomment next line:
# path: "%database_path%"
types:
json: Sonata\Doctrine\Types\JsonType
orm:
auto_generate_proxy_classes: "%kernel.debug%"
auto_mapping: true
# Swiftmailer Configuration
swiftmailer:
transport: "%mailer_transport%"
host: "%mailer_host%"
username: "%mailer_user%"
password: "%mailer_password%"
spool: { type: memory }
fos_user:
db_driver: orm # other valid values are 'mongodb', 'couchdb' and 'propel'
firewall_name: secured
user_class: Application\Sonata\UserBundle\Entity\User
group:
group_class: Application\Sonata\UserBundle\Entity\Group
group_manager: sonata.user.orm.group_manager
service:
user_manager: sonata.user.orm.user_manager
sonata_doctrine_orm_admin:
entity_manager: ~
sonata_block:
default_contexts: [cms]
blocks:
sonata.admin.block.admin_list:
contexts: [admin]
sonata.user.block.menu: ~
sonata.user.block.account: ~
sonata.block.service.text: ~
sonata_user:
security_acl: true
manager_type: orm
mopa_bootstrap:
form: ~
And last but not least: the full stack trace.
[1] ReflectionException: Class does not exist
at n/a
in /var/www/Project/app/cache/dev/classes.php line 6756
at ReflectionClass->__construct('')
in /var/www/Project/app/cache/dev/classes.php line 6756
at Doctrine\Common\Persistence\AbstractManagerRegistry->getManagerForClass(null)
in /var/www/Project/vendor/sonata-project/doctrine-orm-admin-bundle/Model/ModelManager.php line 220
at Sonata\DoctrineORMAdminBundle\Model\ModelManager->getEntityManager(null)
in /var/www/Project/vendor/sonata-project/doctrine-orm-admin-bundle/Model/ModelManager.php line 54
at Sonata\DoctrineORMAdminBundle\Model\ModelManager->getMetadata(null)
in /var/www/Project/vendor/sonata-project/doctrine-orm-admin-bundle/Model/ModelManager.php line 317
at Sonata\DoctrineORMAdminBundle\Model\ModelManager->getIdentifierFieldNames(null)
in /var/www/Project/app/cache/dev/classes.php line 12663
at Sonata\AdminBundle\Form\ChoiceList\ModelChoiceList->__construct(object(ModelManager), null, null, null, null)
in /var/www/Project/app/cache/dev/classes.php line 13690
at Sonata\AdminBundle\Form\Type\ModelType->Sonata\AdminBundle\Form\Type\{closure}(object(OptionsResolver), object(SimpleChoiceList))
in /var/www/Project/vendor/symfony/symfony/src/Symfony/Component/OptionsResolver/OptionsResolver.php line 836
at Symfony\Component\OptionsResolver\OptionsResolver->offsetGet('choice_list')
in /var/www/Project/vendor/symfony/symfony/src/Symfony/Component/OptionsResolver/OptionsResolver.php line 769
at Symfony\Component\OptionsResolver\OptionsResolver->resolve(array('sonata_field_description' => object(FieldDescription), 'class' => null, 'model_manager' => object(ModelManager), 'multiple' => false, 'label_render' => false, 'label' => 'Description'))
in /var/www/Project/vendor/symfony/symfony/src/Symfony/Component/Form/ResolvedFormType.php line 109
at Symfony\Component\Form\ResolvedFormType->createBuilder(object(FormFactory), 'description', array('sonata_field_description' => object(FieldDescription), 'class' => null, 'model_manager' => object(ModelManager), 'multiple' => false, 'label_render' => false, 'label' => 'Description'))
in /var/www/Project/vendor/symfony/symfony/src/Symfony/Component/Form/Extension/DataCollector/Proxy/ResolvedTypeDataCollectorProxy.php line 82
at Symfony\Component\Form\Extension\DataCollector\Proxy\ResolvedTypeDataCollectorProxy->createBuilder(object(FormFactory), 'description', array('sonata_field_description' => object(FieldDescription), 'class' => null, 'model_manager' => object(ModelManager), 'multiple' => false, 'label_render' => false, 'label' => 'Description'))
in /var/www/Project/vendor/symfony/symfony/src/Symfony/Component/Form/FormFactory.php line 87
at Symfony\Component\Form\FormFactory->createNamedBuilder('description', 'sonata_type_model', null, array('sonata_field_description' => object(FieldDescription), 'class' => null, 'model_manager' => object(ModelManager), 'multiple' => false, 'label_render' => false, 'label' => 'Description'))
in /var/www/Project/vendor/symfony/symfony/src/Symfony/Component/Form/FormBuilder.php line 106
at Symfony\Component\Form\FormBuilder->create('description', 'sonata_type_model', array('sonata_field_description' => object(FieldDescription), 'class' => null, 'model_manager' => object(ModelManager), 'multiple' => false, 'label_render' => false, 'label' => 'Description'))
in /var/www/Project/vendor/symfony/symfony/src/Symfony/Component/Form/FormBuilder.php line 268
at Symfony\Component\Form\FormBuilder->resolveChildren()
in /var/www/Project/vendor/symfony/symfony/src/Symfony/Component/Form/FormBuilder.php line 216
at Symfony\Component\Form\FormBuilder->getForm()
in /var/www/Project/app/cache/dev/classes.php line 9671
at Sonata\AdminBundle\Admin\Admin->buildForm()
in /var/www/Project/app/cache/dev/classes.php line 9930
at Sonata\AdminBundle\Admin\Admin->getForm()
in /var/www/Project/vendor/sonata-project/admin-bundle/Controller/CRUDController.php line 353
at Sonata\AdminBundle\Controller\CRUDController->editAction('1')
in line
at call_user_func_array(array(object(CRUDController), 'editAction'), array('1'))
in /var/www/Project/app/bootstrap.php.cache line 3022
at Symfony\Component\HttpKernel\HttpKernel->handleRaw(object(Request), '1')
in /var/www/Project/app/bootstrap.php.cache line 2984
at Symfony\Component\HttpKernel\HttpKernel->handle(object(Request), '1', true)
in /var/www/Project/app/bootstrap.php.cache line 3133
at Symfony\Component\HttpKernel\DependencyInjection\ContainerAwareHttpKernel->handle(object(Request), '1', true)
in /var/www/Project/app/bootstrap.php.cache line 2377
at Symfony\Component\HttpKernel\Kernel->handle(object(Request))
in /var/www/Project/web/app_dev.php line 28

Answer 1

Well, the reason for this error was a bad copy/paste from the tutorial.
In the Admin Class, the function configureFormFields contained a field "Description" badly described.
->with('Description')
->add('description', 'sonata_type_model', array('multiple' => false))
->end()
I had to replace it to:
->with('Description')
->add('description')
->end()
I discovered that automatic Admin Class skeleton generation was a function of Sonata Admin Bundle.
In order to automatically generate, execute:
php app/console sonata:admin:generate
Then enter the full path to your entity, in this example:
Platform\ProjectBundle\Entity\Biosample
The admin bundle will parse your entity and :
Generate the Admin Class file
Add an entry in your application bundle's service.yml
Generate optionnaly the CRUD controller
I guess this should be the prefered method when one is starting with sonata admin bundle.

Answer 2

I had the same problem, and for a reason i ignore, not in the past project where i've done exactly the same...
After an hour of search, i realize my table 'fos_user_user_group' has not been created has the mapping is not created. So my solution was simply to override the groups property of my entity User in order to define the Doctrine ORM Mapping :
/**
* The User can have many groups.
* #ORM\ManyToMany(targetEntity="Group")
* #ORM\JoinTable(name="fos_user_user_group",
* joinColumns={#ORM\JoinColumn(name="user_id", referencedColumnName="id")},
* inverseJoinColumns={#ORM\JoinColumn(name="group_id", referencedColumnName="id")}
* )
*/
protected $groups;
After that, doctrine:schema:update --force and the problem was solved ;)

Answer 3

If you did it like me, and created first the database then via the console the yml files and from that the classes, then your annotations are useless.
Sonata is using yml and not annotations. They exist and seem to work but they just don't. To make the "Class does not exist" message go check what you yml definitions are saying. I needed to add the relationships and entity classes there.
If this is really the reason for your errors you might want to activate the annotations by deleting or moving the yml or xml templates somewhere else (..\Resources\config\doctrine).