/usr/share/php/Symfony/Bridge/Doctrine/Form/ChoiceList/EntityChoiceList.php is in php-symfony-doctrine-bridge 2.3.21+dfsg-4+deb8u3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 | <?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Bridge\Doctrine\Form\ChoiceList;
use Symfony\Component\Form\Exception\RuntimeException;
use Symfony\Component\Form\Exception\StringCastException;
use Symfony\Component\Form\Extension\Core\ChoiceList\ObjectChoiceList;
use Doctrine\Common\Persistence\ObjectManager;
use Symfony\Component\PropertyAccess\PropertyAccessorInterface;
/**
* A choice list presenting a list of Doctrine entities as choices
*
* @author Bernhard Schussek <bschussek@gmail.com>
*/
class EntityChoiceList extends ObjectChoiceList
{
/**
* @var ObjectManager
*/
private $em;
/**
* @var string
*/
private $class;
/**
* @var \Doctrine\Common\Persistence\Mapping\ClassMetadata
*/
private $classMetadata;
/**
* Contains the query builder that builds the query for fetching the
* entities
*
* This property should only be accessed through queryBuilder.
*
* @var EntityLoaderInterface
*/
private $entityLoader;
/**
* The identifier field, if the identifier is not composite
*
* @var array
*/
private $idField = null;
/**
* Whether to use the identifier for index generation
*
* @var bool
*/
private $idAsIndex = false;
/**
* Whether to use the identifier for value generation
*
* @var bool
*/
private $idAsValue = false;
/**
* Whether the entities have already been loaded.
*
* @var bool
*/
private $loaded = false;
/**
* The preferred entities.
*
* @var array
*/
private $preferredEntities = array();
/**
* Creates a new entity choice list.
*
* @param ObjectManager $manager An EntityManager instance
* @param string $class The class name
* @param string $labelPath The property path used for the label
* @param EntityLoaderInterface $entityLoader An optional query builder
* @param array|\Traversable|null $entities An array of choices or null to lazy load
* @param array $preferredEntities An array of preferred choices
* @param string $groupPath A property path pointing to the property used
* to group the choices. Only allowed if
* the choices are given as flat array.
* @param PropertyAccessorInterface $propertyAccessor The reflection graph for reading property paths.
*/
public function __construct(ObjectManager $manager, $class, $labelPath = null, EntityLoaderInterface $entityLoader = null, $entities = null, array $preferredEntities = array(), $groupPath = null, PropertyAccessorInterface $propertyAccessor = null)
{
$this->em = $manager;
$this->entityLoader = $entityLoader;
$this->classMetadata = $manager->getClassMetadata($class);
$this->class = $this->classMetadata->getName();
$this->loaded = is_array($entities) || $entities instanceof \Traversable;
$this->preferredEntities = $preferredEntities;
$identifier = $this->classMetadata->getIdentifierFieldNames();
if (1 === count($identifier)) {
$this->idField = $identifier[0];
$this->idAsValue = true;
if (in_array($this->classMetadata->getTypeOfField($this->idField), array('integer', 'smallint', 'bigint'))) {
$this->idAsIndex = true;
}
}
if (!$this->loaded) {
// Make sure the constraints of the parent constructor are
// fulfilled
$entities = array();
}
parent::__construct($entities, $labelPath, $preferredEntities, $groupPath, null, $propertyAccessor);
}
/**
* Returns the list of entities
*
* @return array
*
* @see Symfony\Component\Form\Extension\Core\ChoiceList\ChoiceListInterface
*/
public function getChoices()
{
if (!$this->loaded) {
$this->load();
}
return parent::getChoices();
}
/**
* Returns the values for the entities
*
* @return array
*
* @see Symfony\Component\Form\Extension\Core\ChoiceList\ChoiceListInterface
*/
public function getValues()
{
if (!$this->loaded) {
$this->load();
}
return parent::getValues();
}
/**
* Returns the choice views of the preferred choices as nested array with
* the choice groups as top-level keys.
*
* @return array
*
* @see Symfony\Component\Form\Extension\Core\ChoiceList\ChoiceListInterface
*/
public function getPreferredViews()
{
if (!$this->loaded) {
$this->load();
}
return parent::getPreferredViews();
}
/**
* Returns the choice views of the choices that are not preferred as nested
* array with the choice groups as top-level keys.
*
* @return array
*
* @see Symfony\Component\Form\Extension\Core\ChoiceList\ChoiceListInterface
*/
public function getRemainingViews()
{
if (!$this->loaded) {
$this->load();
}
return parent::getRemainingViews();
}
/**
* Returns the entities corresponding to the given values.
*
* @param array $values
*
* @return array
*
* @see Symfony\Component\Form\Extension\Core\ChoiceList\ChoiceListInterface
*/
public function getChoicesForValues(array $values)
{
// Performance optimization
// Also prevents the generation of "WHERE id IN ()" queries through the
// entity loader. At least with MySQL and on the development machine
// this was tested on, no exception was thrown for such invalid
// statements, consequently no test fails when this code is removed.
// https://github.com/symfony/symfony/pull/8981#issuecomment-24230557
if (empty($values)) {
return array();
}
if (!$this->loaded) {
// Optimize performance in case we have an entity loader and
// a single-field identifier
if ($this->idAsValue && $this->entityLoader) {
$unorderedEntities = $this->entityLoader->getEntitiesByIds($this->idField, $values);
$entitiesByValue = array();
$entities = array();
// Maintain order and indices from the given $values
// An alternative approach to the following loop is to add the
// "INDEX BY" clause to the Doctrine query in the loader,
// but I'm not sure whether that's doable in a generic fashion.
foreach ($unorderedEntities as $entity) {
$value = $this->fixValue(current($this->getIdentifierValues($entity)));
$entitiesByValue[$value] = $entity;
}
foreach ($values as $i => $value) {
if (isset($entitiesByValue[$value])) {
$entities[$i] = $entitiesByValue[$value];
}
}
return $entities;
}
$this->load();
}
return parent::getChoicesForValues($values);
}
/**
* Returns the values corresponding to the given entities.
*
* @param array $entities
*
* @return array
*
* @see Symfony\Component\Form\Extension\Core\ChoiceList\ChoiceListInterface
*/
public function getValuesForChoices(array $entities)
{
// Performance optimization
if (empty($entities)) {
return array();
}
if (!$this->loaded) {
// Optimize performance for single-field identifiers. We already
// know that the IDs are used as values
// Attention: This optimization does not check choices for existence
if ($this->idAsValue) {
$values = array();
foreach ($entities as $i => $entity) {
if ($entity instanceof $this->class) {
// Make sure to convert to the right format
$values[$i] = $this->fixValue(current($this->getIdentifierValues($entity)));
}
}
return $values;
}
$this->load();
}
return parent::getValuesForChoices($entities);
}
/**
* Returns the indices corresponding to the given entities.
*
* @param array $entities
*
* @return array
*
* @see Symfony\Component\Form\Extension\Core\ChoiceList\ChoiceListInterface
*/
public function getIndicesForChoices(array $entities)
{
// Performance optimization
if (empty($entities)) {
return array();
}
if (!$this->loaded) {
// Optimize performance for single-field identifiers. We already
// know that the IDs are used as indices
// Attention: This optimization does not check choices for existence
if ($this->idAsIndex) {
$indices = array();
foreach ($entities as $i => $entity) {
if ($entity instanceof $this->class) {
// Make sure to convert to the right format
$indices[$i] = $this->fixIndex(current($this->getIdentifierValues($entity)));
}
}
return $indices;
}
$this->load();
}
return parent::getIndicesForChoices($entities);
}
/**
* Returns the entities corresponding to the given values.
*
* @param array $values
*
* @return array
*
* @see Symfony\Component\Form\Extension\Core\ChoiceList\ChoiceListInterface
*/
public function getIndicesForValues(array $values)
{
// Performance optimization
if (empty($values)) {
return array();
}
if (!$this->loaded) {
// Optimize performance for single-field identifiers.
// Attention: This optimization does not check values for existence
if ($this->idAsIndex && $this->idAsValue) {
return $this->fixIndices($values);
}
$this->load();
}
return parent::getIndicesForValues($values);
}
/**
* Creates a new unique index for this entity.
*
* If the entity has a single-field identifier, this identifier is used.
*
* Otherwise a new integer is generated.
*
* @param mixed $entity The choice to create an index for
*
* @return int|string A unique index containing only ASCII letters,
* digits and underscores.
*/
protected function createIndex($entity)
{
if ($this->idAsIndex) {
return $this->fixIndex(current($this->getIdentifierValues($entity)));
}
return parent::createIndex($entity);
}
/**
* Creates a new unique value for this entity.
*
* If the entity has a single-field identifier, this identifier is used.
*
* Otherwise a new integer is generated.
*
* @param mixed $entity The choice to create a value for
*
* @return int|string A unique value without character limitations.
*/
protected function createValue($entity)
{
if ($this->idAsValue) {
return (string) current($this->getIdentifierValues($entity));
}
return parent::createValue($entity);
}
/**
* {@inheritdoc}
*/
protected function fixIndex($index)
{
$index = parent::fixIndex($index);
// If the ID is a single-field integer identifier, it is used as
// index. Replace any leading minus by underscore to make it a valid
// form name.
if ($this->idAsIndex && $index < 0) {
$index = strtr($index, '-', '_');
}
return $index;
}
/**
* Loads the list with entities.
*/
private function load()
{
if ($this->entityLoader) {
$entities = $this->entityLoader->getEntities();
} else {
$entities = $this->em->getRepository($this->class)->findAll();
}
try {
// The second parameter $labels is ignored by ObjectChoiceList
parent::initialize($entities, array(), $this->preferredEntities);
} catch (StringCastException $e) {
throw new StringCastException(str_replace('argument $labelPath', 'option "property"', $e->getMessage()), null, $e);
}
$this->loaded = true;
}
/**
* Returns the values of the identifier fields of an entity.
*
* Doctrine must know about this entity, that is, the entity must already
* be persisted or added to the identity map before. Otherwise an
* exception is thrown.
*
* @param object $entity The entity for which to get the identifier
*
* @return array The identifier values
*
* @throws RuntimeException If the entity does not exist in Doctrine's identity map
*/
private function getIdentifierValues($entity)
{
if (!$this->em->contains($entity)) {
throw new RuntimeException(
'Entities passed to the choice field must be managed. Maybe '.
'persist them in the entity manager?'
);
}
$this->em->initializeObject($entity);
return $this->classMetadata->getIdentifierValues($entity);
}
}
|