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							361 lines
						
					
					
						
							10 KiB
						
					
					
				| <?php | |
| /** | |
|  * Created by Error202 | |
|  * Date: 24.08.2018 | |
|  */ | |
|  | |
| namespace core\behaviors; | |
|  | |
| use yii\base\Behavior; | |
| use yii\base\InvalidConfigException; | |
| use yii\db\ActiveRecord; | |
| use yii\db\ActiveQuery; | |
|  | |
| class LanguageBehavior extends Behavior | |
| { | |
| 	/** | |
| 	 * Attributes for translate, ex.: ['name', 'content'] | |
| 	 * @var array | |
| 	 */ | |
| 	public $attributes; | |
|  | |
| 	/** | |
| 	 * Class name for language active record entity | |
| 	 * @var string | |
| 	 */ | |
| 	public $virtualClassName = 'VirtualTranslate'; | |
|  | |
| 	/** | |
| 	 * Field name for language in translate table | |
| 	 * @var string | |
| 	 */ | |
| 	public $languageField = 'language'; | |
|  | |
| 	/** | |
| 	 * Field name for tables relative, ex.: 'post_id' | |
| 	 * @var string | |
| 	 */ | |
| 	public $relativeField; | |
|  | |
| 	/** | |
| 	 * Available languages, ex.: ['en', 'ru'] | |
| 	 * @var array | |
| 	 */ | |
| 	public $translatedLanguages; | |
|  | |
| 	/** | |
| 	 * Default language, ex.: 'en' | |
| 	 * @var string | |
| 	 */ | |
| 	public $defaultLanguage; | |
|  | |
| 	/** | |
| 	 * Translate table name, ex.: 'post_lng' | |
| 	 * @var string | |
| 	 */ | |
| 	public $tableName; | |
|  | |
| 	/** | |
| 	 * Abridge the language ID. | |
| 	 * @var boolean whether to abridge the language ID. | |
| 	 */ | |
| 	public $abridge = true; | |
|  | |
| 	/** | |
| 	 * Delete relative if foreign key not set on delete: cascade | |
| 	 * @var bool | |
| 	 */ | |
| 	public $forceDelete = false; | |
|  | |
| 	private $ownerClassName; | |
| 	private $ownerClassShortName; | |
| 	private $ownerPrimaryKey; | |
| 	private $languageAttributes = []; | |
|  | |
| 	/** | |
| 	 * Control events firing | |
| 	 * @return array | |
| 	 */ | |
| 	public function events() | |
| 	{ | |
| 		return [ | |
| 			ActiveRecord::EVENT_AFTER_FIND => 'afterFind', | |
| 			ActiveRecord::EVENT_AFTER_UPDATE => 'afterUpdate', | |
| 			ActiveRecord::EVENT_AFTER_INSERT => 'afterInsert', | |
| 			ActiveRecord::EVENT_AFTER_DELETE => 'afterDelete', | |
| 			//ActiveRecord::EVENT_BEFORE_VALIDATE => 'beforeValidate', | |
| 		]; | |
| 	} | |
|  | |
| 	public function attach( $owner ) { | |
| 		/** @var ActiveRecord $owner */ | |
| 		parent::attach($owner); | |
| 		if (empty($this->translatedLanguages) || !is_array($this->translatedLanguages)) { | |
| 			throw new InvalidConfigException('Please specify array of available languages for the ' . get_class($this) . ' in the ' | |
| 			                                 . get_class($this->owner) . ' or in the application parameters', 101); | |
| 		} | |
|  | |
| 		if (array_values($this->translatedLanguages) !== $this->translatedLanguages) { //associative array | |
| 			$this->translatedLanguages = array_keys($this->translatedLanguages); | |
| 		} | |
|  | |
| 		if (!$this->defaultLanguage) { | |
| 			throw new InvalidConfigException('Please specify default language for the ' . get_class($this)); | |
| 		} | |
|  | |
| 		if (empty($this->attributes) || !is_array($this->attributes)) { | |
| 			throw new InvalidConfigException('Please specify translated attributes for the ' . get_class($this) . ' in the ' | |
| 			                                 . get_class($this->owner), 103); | |
| 		} | |
|  | |
| 		$this->ownerClassName = get_class($this->owner); | |
| 		$this->ownerClassShortName = $this->getShortClassName($this->ownerClassName); | |
|  | |
| 		/** @var ActiveRecord $className */ | |
| 		$className = $this->ownerClassName; | |
| 		$this->ownerPrimaryKey = $className::primaryKey()[0]; | |
|  | |
| 		if (!isset($this->relativeField)) { | |
| 			throw new InvalidConfigException('Please specify relativeField for the ' . get_class($this) . ' in the ' | |
| 			                                 . get_class($this->owner), 105); | |
| 		} | |
|  | |
| 		//$rules = $owner->rules(); | |
| 		//$validators = $owner->getValidators(); | |
| 		/*foreach ($rules as $rule) { | |
| 			if (in_array($rule[1], $this->excludedValidators)) | |
| 				continue; | |
| 			$rule_attributes = is_array($rule[0]) ? $rule[0] : [$rule[0]]; | |
| 			$attributes = array_intersect($this->attributes, $rule_attributes); | |
| 			if (empty($attributes)) | |
| 				continue; | |
| 			$rule_attributes = []; | |
| 			foreach ($attributes as $key => $attribute) { | |
| 				foreach ($this->languages as $language) | |
| 					if ($language != $this->defaultLanguage) | |
| 						$rule_attributes[] = $this->getAttributeName($attribute, $language); | |
| 			} | |
| 			if (isset($rule['skipOnEmpty']) && !$rule['skipOnEmpty']) | |
| 				$rule['skipOnEmpty'] = !$this->requireTranslations; | |
| 			$params = array_slice($rule, 2); | |
| 			if ($rule[1] !== 'required' || $this->requireTranslations) { | |
| 				$validators[] = Validator::createValidator($rule[1], $owner, $rule_attributes, $params); | |
| 			} elseif ($rule[1] === 'required') { | |
| 				$validators[] = Validator::createValidator('safe', $owner, $rule_attributes, $params); | |
| 			} | |
| 		}*/ | |
|  | |
| 		$this->createLanguageClass(); | |
| 		$translation = new $this->virtualClassName; | |
|  | |
| 		foreach ($this->translatedLanguages as $language) { | |
| 			foreach ($this->attributes as $attribute) { | |
| 				$attributeName = $attribute; | |
| 				$this->setLanguageAttribute($attribute . '_' . $language, $translation->{$attributeName}); | |
|  | |
| 				//$this->owner->__set($attribute . '_' . $language, $translation->{$attributeName}); | |
| 				//$this->owner->{$attribute . '_' . $language} = $translation->{$attributeName}; | |
| 				//$this->owner->createProperty($attribute . '_' . $language, $translation->{$attributeName}); | |
|  | |
| 				if ($language == $this->defaultLanguage) { | |
| 					$this->setLanguageAttribute($attribute, $translation->{$attributeName}); | |
| 					//$this->owner->__set($attribute, $translation->{$attributeName}); | |
| 				} | |
| 			} | |
| 		} | |
| 	} | |
|  | |
| 	/** | |
| 	 * Insert event | |
| 	 */ | |
| 	public function afterInsert() | |
| 	{ | |
| 		$this->saveTranslations(); | |
| 	} | |
|  | |
| 	/** | |
| 	 * Update event | |
| 	 */ | |
| 	public function afterUpdate() | |
| 	{ | |
| 		/** @var ActiveRecord $owner */ | |
| 		$owner = $this->owner; | |
| 		//if ($owner->isRelationPopulated('translations')) { | |
| 		if ($translationRecords = $owner->translations) { | |
| 			$translations = $this->indexByLanguage($owner->getRelatedRecords()['translations']); | |
| 			//$translations = $this->indexByLanguage($translationRecords); | |
| 			$this->saveTranslations($translations); | |
| 		} | |
| 	} | |
|  | |
| 	/** | |
| 	 * Find event | |
| 	 */ | |
| 	public function afterFind() | |
| 	{ | |
| 		/** @var ActiveRecord $owner */ | |
| 		$owner = $this->owner; | |
| 		if ($owner->isRelationPopulated('translations') && $related = $owner->getRelatedRecords()['translations']) { | |
| 			$translations = $this->indexByLanguage($related); | |
| 			foreach ($this->translatedLanguages as $language) { | |
| 				foreach ($this->attributes as $attribute) { | |
| 					foreach ($translations as $translation) { | |
| 						if ($translation->{$this->languageField} == $language) { | |
| 							$attributeName = $attribute; | |
| 							$this->setLanguageAttribute($attribute . '_' . $language, $translation->{$attributeName}); | |
| 							if ($language == $this->defaultLanguage) { | |
| 								$this->setLanguageAttribute($attribute, $translation->{$attributeName}); | |
| 							} | |
| 						} | |
| 					} | |
| 				} | |
| 			} | |
| 		} else { | |
| 			if (!$owner->isRelationPopulated('translation')) { | |
| 				$owner->translation; | |
| 			} | |
| 			$translation = $owner->getRelatedRecords()['translation']; | |
| 			if ($translation) { | |
| 				foreach ($this->attributes as $attribute) { | |
| 					$attribute_name = $attribute; | |
| 					$owner->setLanguageAttribute($attribute, $translation->$attribute_name); | |
| 				} | |
| 			} | |
| 		} | |
| 		foreach ($this->attributes as $attribute) { | |
| 			if ($owner->hasAttribute($attribute) && $this->getLangAttribute($attribute)) { | |
| 				$owner->setAttribute($attribute, $this->getLangAttribute($attribute)); | |
| 			} | |
| 		} | |
| 	} | |
|  | |
| 	public function afterDelete() | |
| 	{ | |
| 		if ($this->forceDelete) { | |
| 			/** @var ActiveRecord $owner */ | |
| 			$owner = $this->owner; | |
| 			$owner->unlinkAll('translations', true); | |
| 		} | |
| 	} | |
|  | |
| 	public function createLanguageClass() | |
| 	{ | |
| 		if (!class_exists($this->virtualClassName, false)) { | |
| 			eval(' | |
|             use yii\db\ActiveRecord; | |
|             class ' . $this->virtualClassName . ' extends ActiveRecord | |
|             { | |
|                 public static function tableName() | |
|                 { | |
|                     return \'' . $this->tableName . '\'; | |
|                 } | |
|             }'); | |
| 		} | |
| 	} | |
|  | |
| 	private function saveTranslations($translations = []) | |
| 	{ | |
| 		/** @var ActiveRecord $owner */ | |
| 		$owner = $this->owner; | |
| 		if (!isset($owner->_form) || !$owner->_form) { | |
| 			return; | |
| 		} | |
| 		foreach ($this->translatedLanguages as $language) { | |
| 			$isDefaultLanguage = $language == $this->defaultLanguage; | |
| 			if (!isset($translations[$language])) { | |
| 				/** @var ActiveRecord $translation */ | |
| 				$translation = new $this->virtualClassName; | |
| 				$translation->{$this->languageField} = $language; | |
| 				$translation->{$this->relativeField} = $owner->getPrimaryKey(); | |
| 			} else { | |
| 				$translation = $translations[$language]; | |
| 			} | |
| 			$save = false; | |
| 			foreach ($this->attributes as $attribute) { | |
| 				//$value = $isDefaultLanguage ? $owner->$attribute : $owner->{$attribute . '_' . $language}; | |
| 				$value = $isDefaultLanguage ? $owner->_form->$attribute : $owner->_form->{$attribute . '_' . $language}; | |
| 				if ($value !== null) { | |
| 					//$field = $isDefaultLanguage ? $attribute : $attribute . '_' . $language; | |
| 					$field = $attribute; | |
| 					$translation->$field = $value; | |
| 					$save = true; | |
| 				} | |
| 			} | |
| 			if ($translation->isNewRecord && !$save) { | |
| 				continue; | |
| 			} | |
| 			$translation->save(); | |
| 		} | |
| 	} | |
|  | |
| 	private function getShortClassName($className) | |
| 	{ | |
| 		return substr($className, strrpos($className, '\\') + 1); | |
| 	} | |
|  | |
| 	public function setLanguageAttribute($name, $value) | |
| 	{ | |
| 		$this->languageAttributes[$name] = $value; | |
| 	} | |
|  | |
| 	protected function indexByLanguage(array $records) | |
| 	{ | |
| 		$sorted = []; | |
| 		foreach ($records as $record) { | |
| 			$sorted[$record->{$this->languageField}] = $record; | |
| 		} | |
| 		unset($records); | |
| 		return $sorted; | |
| 	} | |
|  | |
| 	/** | |
| 	 * Relation to model translations | |
| 	 * @return ActiveQuery | |
| 	 */ | |
| 	public function getTranslations() | |
| 	{ | |
| 		/** @var ActiveRecord  */ | |
| 		return $this->owner->hasMany($this->virtualClassName, [$this->relativeField => $this->ownerPrimaryKey]); | |
| 	} | |
|  | |
| 	public function getTranslation($language = null) | |
| 	{ | |
| 		//if (basename(\Yii::$app->getBasePath()) === 'backend') { | |
| 		//	$language = $language ?: $this->defaultLanguage; | |
| 		//} | |
| 		//else { | |
| 			$language = $language ?: \Yii::$app->language; | |
| 		//} | |
| 		// if translate exists | |
| 		$translate = $this->virtualClassName::find() | |
| 			->andWhere([$this->relativeField => $this->owner->id]) | |
| 			->andWhere([$this->languageField => $language]) | |
| 			->one(); | |
|  | |
| 		$language = $translate ? $language : $this->defaultLanguage; | |
|  | |
| 		return $this->owner->hasOne($this->virtualClassName, [$this->relativeField => $this->ownerPrimaryKey]) | |
| 		                   ->where([$this->languageField => $language]); | |
| 	} | |
|  | |
| 	public function findTranslation($language = null) | |
| 	{ | |
| 		$language = $language ?: $this->defaultLanguage; | |
| 		//$class = call_user_func(array($this->virtualClassName, 'getInstance')); | |
| 		return $this->virtualClassName::find() | |
|             ->andWhere([$this->relativeField => $this->owner->id]) | |
| 			->andWhere([$this->languageField => $language]) | |
| 			->one(); | |
| 	} | |
|  | |
| 	public function hasLangAttribute($name) | |
| 	{ | |
| 		return array_key_exists($name, $this->languageAttributes); | |
| 	} | |
|  | |
| 	public function getLangAttribute($name) | |
| 	{ | |
| 		return $this->hasLangAttribute($name) ? $this->languageAttributes[$name] : null; | |
| 	} | |
|  | |
| }
 | |
| 
 |