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<?php
/*
* This file is part of the KnpDoctrineBehaviors package.
*
* (c) KnpLabs <http://knplabs.com/>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Knp\DoctrineBehaviors\Model\Translatable;
use Doctrine\Common\Collections\ArrayCollection;
/**
* Translatable trait.
*
* Should be used inside entity, that needs to be translated.
*/
trait TranslatableMethods
{
/**
* Returns collection of translations.
*
* @return ArrayCollection
*/
public function getTranslations()
{
return $this->translations = $this->translations ?: new ArrayCollection();
}
/**
* Returns collection of new translations.
*
* @return ArrayCollection
*/
public function getNewTranslations()
{
return $this->newTranslations = $this->newTranslations ?: new ArrayCollection();
}
/**
* Adds new translation.
*
* @param Translation $translation The translation
*
* @return $this
*/
public function addTranslation($translation)
{
$this->getTranslations()->set((string)$translation->getLocale(), $translation);
$translation->setTranslatable($this);
return $this;
}
/**
* Removes specific translation.
*
* @param Translation $translation The translation
*/
public function removeTranslation($translation)
{
$this->getTranslations()->removeElement($translation);
}
/**
* Returns translation for specific locale (creates new one if doesn't exists).
* If requested translation doesn't exist, it will first try to fallback default locale
* If any translation doesn't exist, it will be added to newTranslations collection.
* In order to persist new translations, call mergeNewTranslations method, before flush
*
* @param string $locale The locale (en, ru, fr) | null If null, will try with current locale
* @param bool $fallbackToDefault Whether fallback to default locale
*
* @return Translation
*/
public function translate($locale = null, $fallbackToDefault = true)
{
return $this->doTranslate($locale, $fallbackToDefault);
}
/**
* Returns translation for specific locale (creates new one if doesn't exists).
* If requested translation doesn't exist, it will first try to fallback default locale
* If any translation doesn't exist, it will be added to newTranslations collection.
* In order to persist new translations, call mergeNewTranslations method, before flush
*
* @param string $locale The locale (en, ru, fr) | null If null, will try with current locale
* @param bool $fallbackToDefault Whether fallback to default locale
*
* @return Translation
*/
protected function doTranslate($locale = null, $fallbackToDefault = true)
{
if (null === $locale) {
$locale = $this->getCurrentLocale();
}
$translation = $this->findTranslationByLocale($locale);
if ($translation and !$translation->isEmpty()) {
return $translation;
}
if ($fallbackToDefault) {
if (($fallbackLocale = $this->computeFallbackLocale($locale))
&& ($translation = $this->findTranslationByLocale($fallbackLocale))) {
return $translation;
}
if ($defaultTranslation = $this->findTranslationByLocale($this->getDefaultLocale(), false)) {
return $defaultTranslation;
}
}
$class = static::getTranslationEntityClass();
$translation = new $class();
$translation->setLocale($locale);
$this->getNewTranslations()->set((string)$translation->getLocale(), $translation);
$translation->setTranslatable($this);
return $translation;
}
/**
* Merges newly created translations into persisted translations.
*/
public function mergeNewTranslations()
{
foreach ($this->getNewTranslations() as $newTranslation) {
if (!$this->getTranslations()->contains($newTranslation) && !$newTranslation->isEmpty()) {
$this->addTranslation($newTranslation);
$this->getNewTranslations()->removeElement($newTranslation);
}
}
}
/**
* @param mixed $locale the current locale
*/
public function setCurrentLocale($locale)
{
$this->currentLocale = $locale;
}
/**
* @return Returns the current locale
*/
public function getCurrentLocale()
{
return $this->currentLocale ?: $this->getDefaultLocale();
}
/**
* @param mixed $locale the default locale
*/
public function setDefaultLocale($locale)
{
$this->defaultLocale = $locale;
}
/**
* @return Returns the default locale
*/
public function getDefaultLocale()
{
return $this->defaultLocale;
}
/**
* An extra feature allows you to proxy translated fields of a translatable entity.
*
* @param string $method
* @param array $arguments
*
* @return mixed The translated value of the field for current locale
*/
protected function proxyCurrentLocaleTranslation($method, array $arguments = [])
{
return call_user_func_array(
[$this->translate($this->getCurrentLocale()), $method],
$arguments
);
}
/**
* Returns translation entity class name.
*
* @return string
*/
public static function getTranslationEntityClass()
{
return __CLASS__.'Translation';
}
/**
* Finds specific translation in collection by its locale.
*
* @param string $locale The locale (en, ru, fr)
* @param bool $withNewTranslations searched in new translations too
*
* @return Translation|null
*/
protected function findTranslationByLocale($locale, $withNewTranslations = true)
{
$translation = $this->getTranslations()->get($locale);
if ($translation) {
return $translation;
}
if ($withNewTranslations) {
return $this->getNewTranslations()->get($locale);
}
}
protected function computeFallbackLocale($locale)
{
if (strrchr($locale, '_') !== false) {
return substr($locale, 0, -strlen(strrchr($locale, '_')));
}
return false;
}
}

vendor/knplabs/doctrine-behaviors/src/Model/Translatable/TranslatableMethods.php line 95