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<?php |
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namespace Itstructure\FieldWidgets; |
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use yii\base\{Model, Widget, InvalidConfigException}; |
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use Itstructure\FieldWidgets\interfaces\LanguageFieldInterface; |
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/** |
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* Class TableMultilanguageField |
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* The Widget class of the translation output for specified field. |
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* |
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* @property string $name |
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* @property string $label |
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* @property Model $model |
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* @property LanguageFieldInterface $language |
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* @property string $default |
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* |
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* @package Itstructure\FieldWidgets |
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*/ |
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class TableMultilanguageField extends Widget |
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{ |
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/** |
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* Field name. |
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* |
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* @var string |
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*/ |
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public $name; |
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/** |
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* Field label. |
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* |
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* @var string |
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*/ |
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public $label; |
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/** |
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* The model of the current field. |
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* |
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* @var Model |
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*/ |
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public $model; |
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/** |
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* Model of languages. |
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* |
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* @var LanguageFieldInterface |
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*/ |
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protected $language; |
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/** |
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* The value of the empty field is the default. |
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* |
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* @var string |
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*/ |
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public $default = '-'; |
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/** |
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* Set the language model. |
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* |
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* @param LanguageFieldInterface $language |
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* |
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* @return void |
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*/ |
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public function setLanguage(LanguageFieldInterface $language): void |
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{ |
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$this->language = $language; |
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} |
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/** |
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* Returns the translation of the field. |
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* |
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* @throws InvalidConfigException |
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* |
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* @return string |
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*/ |
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public function run(): string |
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{ |
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if (null === $this->language) { |
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throw new InvalidConfigException('Language model is not defined.'); |
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} |
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if (strpos($this->name, '.') !== false) { |
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$out = $this->getDataByPath($this->name); |
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} else { |
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$out = $this->model->{$this->name.'_'.$this->language->getShortName()}; |
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} |
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return empty($out) ? $this->default : $out; |
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} |
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/** |
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* Obtaining a field translation of another model along a given path through a series |
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* of entities, separated by a point. |
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* |
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* @param $name string, separated by dot. |
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* |
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* @return string |
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*/ |
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private function getDataByPath($name): string |
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{ |
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$namePath = explode('.', $name); |
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$out = $this->model; |
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for ($i=0; $i < count($namePath); $i++) { |
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$out = $i+1 < count($namePath) ? |
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$out->{$namePath[$i]} : $out->{$namePath[$i].'_'.$this->language->getShortName()}; |
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if (is_array($out)) { |
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for ($j=0; $j < count($out); $j++) { |
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$out[$j] = $out[$j]->{$namePath[$i+1].'_'.$this->language->getShortName()}; |
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} |
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$out = implode(', ', $out); |
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break; |
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} |
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} |
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return trim($out, ', '); |
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} |
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} |
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If the size of the collection does not change during the iteration, it is generally a good practice to compute it beforehand, and not on each iteration: