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<?php |
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namespace Spatie\Translatable; |
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use Spatie\Translatable\Exceptions\Untranslatable; |
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trait HasTranslations |
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{ |
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/** |
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* @param string $attributeName |
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* |
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* @return mixed |
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*/ |
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public function getAttributeValue($attributeName) |
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{ |
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if (!$this->isTranslatableAttribute($attributeName)) { |
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return parent::getAttributeValue($attributeName); |
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} |
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return $this->getTranslation($attributeName, config('app.locale')); |
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} |
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public function translate(string $attributeName, string $locale = '', string $default = '') : string |
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{ |
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return $this->getTranslation($attributeName, $locale, $default); |
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} |
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public function getTranslation(string $attributeName, string $locale, string $default = '') : string |
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{ |
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$translations = $this->getTranslations($attributeName); |
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return $translations[$locale] ?? $default; |
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} |
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public function getTranslations(string $attributeName) : array |
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{ |
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$this->guardAgainstUntranslatableFieldName($attributeName); |
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$translations = json_decode($this->getAttributes()[$attributeName] ?? '{}', true); |
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return $translations; |
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} |
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public function setTranslation(string $attributeName, string $locale, string $value) |
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{ |
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$this->guardAgainstUntranslatableFieldName($attributeName); |
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$translations = $this->getTranslations($attributeName); |
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$translations[$locale] = $value; |
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$this->setAttribute($attributeName, $translations); |
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return $this; |
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} |
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public function setTranslations(string $attributeName, array $translations) |
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{ |
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$this->guardAgainstUntranslatableFieldName($attributeName); |
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foreach ($translations as $locale => $translation) { |
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$this->setTranslation($attributeName, $locale, $translation); |
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} |
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return $this; |
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} |
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public function forgetTranslation(string $attributeName, string $locale) |
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{ |
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$translations = $this->getTranslations($attributeName); |
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unset($translations[$locale]); |
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$this->setAttribute($attributeName, $translations); |
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return $this; |
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} |
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public function getTranslatedLocales(string $attributeName) : array |
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{ |
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return array_keys($this->getTranslations($attributeName)); |
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} |
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protected function isTranslatableAttribute(string $attributeName) : bool |
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{ |
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return in_array($attributeName, $this->getTranslatableAttributes()); |
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} |
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protected function guardAgainstUntranslatableFieldName(string $attributeName) |
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{ |
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if (!$this->isTranslatableAttribute($attributeName)) { |
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throw Untranslatable::attributeIsNotTranslatable($attributeName, $this); |
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} |
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} |
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} |
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This check looks for methods that are used by a trait but not required by it.
To illustrate, let’s look at the following code example
The trait
Idableprovides a methodequalsIdthat in turn relies on the methodgetId(). If this method does not exist on a class mixing in this trait, the method will fail.Adding the
getId()as an abstract method to the trait will make sure it is available.