/**
* Initializes the choices and returns them
*
* The choices are generated from the entities. If the entities have a
* composite identifier, the choices are indexed using ascending integers.
* Otherwise the identifiers are used as indices.
*
* If the entities were passed in the "choices" option, this method
* does not have any significant overhead. Otherwise, if a query builder
* was passed in the "query_builder" option, this builder is now used
* to construct a query which is executed. In the last case, all entities
* for the underlying class are fetched from the repository.
*
* If the option "property" was passed, the property path in that option
* is used as option values. Otherwise this method tries to convert
* objects to strings using __toString().
*
* @return array An array of choices
*/
protected function load()
{
if (is_array($this->choices)) {
$entities = $this->choices;
} else {
if ($this->query) {
$entities = $this->modelManager->executeQuery($this->query);
} else {
$entities = $this->modelManager->findBy($this->class);
}
}
$this->choices = array();
$this->entities = array();
foreach ($entities as $key => $entity) {
if ($this->propertyPath) {
// If the property option was given, use it
$value = $this->propertyPath->getValue($entity);
} else {
// Otherwise expect a __toString() method in the entity
$value = (string) $entity;
}
if (count($this->identifier) > 1) {
// When the identifier consists of multiple field, use
// naturally ordered keys to refer to the choices
$this->choices[$key] = $value;
$this->entities[$key] = $entity;
} else {
// When the identifier is a single field, index choices by
// entity ID for performance reasons
$id = current($this->getIdentifierValues($entity));
$this->choices[$id] = $value;
$this->entities[$id] = $entity;
}
}
}
/**
* {@inheritdoc}
*/
public function loadChoiceList($value = null)
{
if (!$this->choiceList) {
if ($this->query) {
$entities = $this->modelManager->executeQuery($this->query);
} elseif (is_array($this->choices) && count($this->choices) > 0) {
$entities = $this->choices;
} else {
$entities = $this->modelManager->findBy($this->class);
}
$choices = array();
foreach ($entities as $key => $entity) {
if ($this->propertyPath) {
// If the property option was given, use it
$propertyAccessor = PropertyAccess::createPropertyAccessor();
$valueObject = $propertyAccessor->getValue($entity, $this->propertyPath);
} else {
// Otherwise expect a __toString() method in the entity
try {
$valueObject = (string) $entity;
} catch (\Exception $e) {
throw new RuntimeException(sprintf("Unable to convert the entity %s to String, entity must have a '__toString()' method defined", ClassUtils::getClass($entity)), 0, $e);
}
}
$id = implode('~', $this->getIdentifierValues($entity));
if (!array_key_exists($valueObject, $choices)) {
$choices[$valueObject] = array();
}
$choices[$valueObject][] = $id;
}
$finalChoices = array();
foreach ($choices as $valueObject => $idx) {
if (count($idx) > 1) {
// avoid issue with identical values ...
foreach ($idx as $id) {
$finalChoices[sprintf('%s (id: %s)', $valueObject, $id)] = $id;
}
} else {
$finalChoices[$valueObject] = current($idx);
}
}
$this->choiceList = new ArrayChoiceList($finalChoices, $value);
}
return $this->choiceList;
}
/**
* Initializes the choices and returns them.
*
* The choices are generated from the entities. If the entities have a
* composite identifier, the choices are indexed using ascending integers.
* Otherwise the identifiers are used as indices.
*
* If the entities were passed in the "choices" option, this method
* does not have any significant overhead. Otherwise, if a query builder
* was passed in the "query" option, this builder is now used to construct
* a query which is executed. In the last case, all entities for the
* underlying class are fetched from the repository.
*
* If the option "property" was passed, the property path in that option
* is used as option values. Otherwise this method tries to convert
* objects to strings using __toString().
*
* @param $choices
*
* @return array An array of choices
*/
protected function load($choices)
{
if (is_array($choices) && count($choices) > 0) {
$entities = $choices;
} elseif ($this->query) {
$entities = $this->modelManager->executeQuery($this->query);
} else {
$entities = $this->modelManager->findBy($this->class);
}
if (null === $entities) {
return array();
}
$choices = array();
$this->entities = array();
foreach ($entities as $key => $entity) {
if ($this->propertyPath) {
// If the property option was given, use it
$propertyAccessor = PropertyAccess::createPropertyAccessor();
$value = $propertyAccessor->getValue($entity, $this->propertyPath);
} else {
// Otherwise expect a __toString() method in the entity
try {
$value = (string) $entity;
} catch (\Exception $e) {
throw new RuntimeException(sprintf("Unable to convert the entity %s to String, entity must have a '__toString()' method defined", ClassUtils::getClass($entity)), 0, $e);
}
}
if (count($this->identifier) > 1) {
// When the identifier consists of multiple field, use
// naturally ordered keys to refer to the choices
$choices[$key] = $value;
$this->entities[$key] = $entity;
} else {
// When the identifier is a single field, index choices by
// entity ID for performance reasons
$id = current($this->getIdentifierValues($entity));
$choices[$id] = $value;
$this->entities[$id] = $entity;
}
}
return $choices;
}
