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<?php |
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namespace mindtwo\LaravelMultilingual\Models\Traits; |
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use Illuminate\Support\Str; |
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use Illuminate\Database\Eloquent\Model; |
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use mindtwo\LaravelMultilingual\Services\Locale; |
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use Illuminate\Database\Eloquent\Relations\MorphMany; |
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use mindtwo\LaravelMultilingual\Exceptions\Exception; |
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use mindtwo\LaravelMultilingual\Exceptions\TranslatableAttributeNotDefinedException; |
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use mindtwo\LaravelMultilingual\Exceptions\TranslatableAttributeTypeNotDefinedException; |
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trait Translatable |
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{ |
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/** |
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* Translatable key/value storage for relation sync after saving. |
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* |
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* @var array |
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*/ |
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private $translationValues = []; |
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/** |
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* The "booting" method of the trait. |
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*/ |
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public static function bootTranslatable() |
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{ |
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static::saved(function (Model $model) { |
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foreach ($model->translationValues as $attributeName=>$values) { |
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$model->storeAttributeTranslations($attributeName, $values); |
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} |
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}); |
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static::registerSetMutator('translations', 'setAttributeTranslation'); |
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static::registerGetMutator('translations', 'getAttributeTranslation'); |
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} |
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/** |
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* Determinate if a translatable attribute is defined. |
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* |
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* @param string $attribute |
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* |
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* @return bool |
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*/ |
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public function hasTranslatableAttribute(string $attribute): bool |
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{ |
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return isset($this->translations[$attribute]); |
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} |
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/** |
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* Get the translatable attribute name or throw an exception, if it is not defined. |
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* |
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* @param $attribute |
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* |
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* @throws TranslatableAttributeNotDefinedException |
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* |
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* @return string |
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*/ |
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public function translatableAttributeOrFail($attribute): string |
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{ |
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if (! $this->hasTranslatableAttribute($attribute)) { |
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throw new TranslatableAttributeNotDefinedException(sprintf('Translatable attribute "%s" not defined', $attribute)); |
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} |
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return $attribute; |
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} |
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/** |
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* Get the normalized translatable type. |
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* |
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* @param string $type |
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* |
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* @return string |
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*/ |
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public function translatableType(string $type): string |
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{ |
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return Str::singular(strtolower($type)); |
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} |
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/** |
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* Determinate if a translatable type exists and throw an exception if not. |
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* |
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* @param string $type |
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* |
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* @throws TranslatableAttributeTypeNotDefinedException |
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* |
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* @return string |
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*/ |
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public function translatableTypeOrFail(string $type): string |
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{ |
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if (! $this->translatableTypeExists($type)) { |
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throw new TranslatableAttributeTypeNotDefinedException(sprintf('Attribute type "%s" not defined', $type)); |
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} |
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return $this->translatableType($type); |
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} |
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/** |
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* Get the normalized translatable type. |
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* |
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* @param string $attribute |
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* |
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* @throws TranslatableAttributeNotDefinedException |
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* |
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* @return string |
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*/ |
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public function translatableTypeByAttribute(string $attribute): string |
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{ |
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$attribute = $this->translatableAttributeOrFail($attribute); |
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return $this->translatableType($this->translations[$attribute]); |
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} |
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/** |
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* Determinate if a translatable type exists. |
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* |
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* @param string $type |
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* |
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* @return bool |
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*/ |
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public function translatableTypeExists(string $type): bool |
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{ |
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return class_exists(config('laravel-multilingual.model.'.$this->translatableType($type))); |
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} |
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/** |
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* Get the translatable relation by attribute name. |
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* |
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* @param string $name |
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* |
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* @throws Exception |
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* |
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* @return MorphMany |
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*/ |
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public function translatableRelationByAttribute(string $name): MorphMany |
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{ |
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return $this->translatableRelationByType( |
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$this->translatableTypeByAttribute($name) |
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); |
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} |
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/** |
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* Get the translatable relation by type. |
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* |
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* @param string $type |
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* |
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* @throws TranslatableAttributeTypeNotDefinedException |
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* |
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* @return MorphMany |
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*/ |
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public function translatableRelationByType(string $type): MorphMany |
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{ |
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$type = $this->translatableTypeOrFail($type); |
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return $this->morphMany(config('laravel-multilingual.model.'.$type), 'linkable'); |
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} |
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/** |
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* Set attribute translation. |
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* @param string $name |
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* @param $value |
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* @param null $locale |
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* |
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* @throws TranslatableAttributeNotDefinedException |
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* |
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* @return $this |
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*/ |
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protected function setAttributeTranslation(string $name, $value, $config = null, $locale = null): self |
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{ |
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$name = $this->translatableAttributeOrFail($name); |
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if (is_null($locale)) { |
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$locale = app(Locale::class)->current; |
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} |
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// Convert scalar values to array |
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$value = ! is_array($value) ? [$locale => $value] : $value; |
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// Map values to translation attributes |
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$this->translationValues[$name] = collect($value)->mapWithKeys(function ($value, $locale) { |
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return [$locale => $value]; |
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})->toArray(); |
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return $this; |
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} |
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/** |
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* Get attribute translation. |
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* |
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* @param string $name |
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* @param string|null $locale |
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* |
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* @throws Exception |
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* @throws TranslatableAttributeNotDefinedException |
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* |
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* @return string |
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*/ |
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public function getAttributeTranslation(string $name, $config = null, string $locale = null): string |
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{ |
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$name = $this->translatableAttributeOrFail($name); |
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if (is_null($locale)) { |
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$locale = app(Locale::class)->current; |
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} |
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// Load translations, if there are no values for the given attribute |
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if (! array_key_exists($name, $this->translationValues)) { |
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$this->loadAttributeTranslations($name); |
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} |
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return $this->translationValues[$name][$locale] ?? $this->translationValues[$name][app(Locale::class)->fallback] ?? ''; |
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} |
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/** |
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* @param string $name |
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* @param string|null $locale |
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* |
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* @throws Exception |
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* |
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* @return string |
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*/ |
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public function translate(string $name, string $locale = null) |
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{ |
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$config = isset($this->translations[$name]) ? $this->translations[$name] : null; |
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return $this->getAttributeTranslation($name, $config, $locale); |
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} |
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/** |
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* @param string $attributeName |
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* @param array $values |
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* |
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* @throws Exception |
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*/ |
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public function storeAttributeTranslations(string $attributeName, array $values = []) |
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{ |
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foreach ($values as $locale => $value) { |
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$this->translatableRelationByAttribute($attributeName)->updateOrCreate( |
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[ |
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'key' => $attributeName, |
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'locale' => $locale, |
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], |
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['value' => $value] |
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); |
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} |
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} |
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/** |
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* @param string $attribute |
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* |
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* @throws Exception |
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* |
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* @return Translatable |
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*/ |
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public function loadAttributeTranslations(string $attribute): self |
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{ |
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$translations = $this->translatableRelationByAttribute($attribute)->where('key', $attribute)->get(); |
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$this->translationValues[$attribute] = collect($translations)->mapWithKeys(function ($item) { |
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return [$item->locale => $item->value]; |
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})->toArray(); |
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return $this; |
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} |
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/** |
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* Reload the current model instance with fresh attributes from the database. |
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* |
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* @return $this |
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*/ |
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public function refresh() |
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{ |
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$this->translationValues = []; |
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return parent::refresh(); |
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} |
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/** |
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* Get translations as array. |
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* |
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* @param string|null $locale |
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* |
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* @return array |
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*/ |
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public function translationsToArray($locale = null): array |
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{ |
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if (is_null($locale)) { |
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$locale = app(Locale::class)->current; |
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} |
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return collect($this->translations)->map(function ($type, $key) use ($locale) { |
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return $this->getAttributeTranslation($key, $locale); |
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})->toArray(); |
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} |
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/** |
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* Get the model and translations as array. |
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* |
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* @param string|null $locale |
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* |
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* @return array |
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*/ |
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public function toArrayWithTranslations($locale = null): array |
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{ |
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if (is_null($locale)) { |
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$locale = app(Locale::class)->current; |
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} |
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return array_merge( |
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$this->toArray(), |
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$this->translationsToArray($locale) |
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); |
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} |
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public function translatableTexts() { |
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return $this->translatableRelationByType('Texts'); |
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} |
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public function translatableStrings() { |
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return $this->translatableRelationByType('Strings'); |
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} |
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} |
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