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<?php |
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/* |
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* This file is part of the Laravel MultiLang package. |
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* |
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* (c) Avtandil Kikabidze aka LONGMAN <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Longman\LaravelMultiLang; |
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use Illuminate\Cache\CacheManager as Cache; |
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use Illuminate\Database\DatabaseManager as Database; |
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use Illuminate\Http\Request; |
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use InvalidArgumentException; |
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use Longman\LaravelMultiLang\Config; |
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use Longman\LaravelMultiLang\Repository; |
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class MultiLang |
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{ |
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/** |
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* Language/Locale. |
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* |
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* @var string |
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*/ |
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protected $lang; |
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/** |
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* System environment |
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* |
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* @var string |
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*/ |
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protected $environment; |
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/** |
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* Config. |
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* |
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* @var \Longman\LaravelMultiLang\Config |
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*/ |
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protected $config; |
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/** |
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* Repository |
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* |
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* @var string |
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*/ |
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protected $repository; |
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/** |
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* Texts. |
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* |
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* @var array |
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*/ |
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protected $texts; |
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/** |
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* Missing texts. |
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* |
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* @var array |
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*/ |
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protected $new_texts; |
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/** |
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* Create a new MultiLang instance. |
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* |
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* @param string $environment |
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* @param array $config |
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* @param \Illuminate\Cache\CacheManager $cache |
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* @param \Illuminate\Database\DatabaseManager $db |
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*/ |
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public function __construct($environment, array $config, Cache $cache, Database $db) |
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{ |
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$this->environment = $environment; |
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$this->cache = $cache; |
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$this->db = $db; |
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$this->setConfig($config); |
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$this->setRepository(new Repository($this->config, $cache, $db)); |
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} |
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public function setConfig(array $config) |
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{ |
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$this->config = new Config($config); |
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return $this; |
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} |
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public function setRepository(Repository $repository) |
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{ |
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$this->repository = $repository; |
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return $this; |
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} |
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public function getRepository() |
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{ |
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return $this->repository; |
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} |
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/** |
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* Set locale and load texts |
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* |
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* @param string $lang |
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* @param array $texts |
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* @return void |
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*/ |
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public function setLocale($lang, array $texts = null) |
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{ |
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if (!$lang) { |
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throw new InvalidArgumentException('Locale is empty'); |
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} |
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$this->lang = $lang; |
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if (!is_array($texts)) { |
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$texts = $this->loadTexts($this->getLocale()); |
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} |
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$this->texts = $texts; |
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} |
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/** |
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* Load texts |
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* |
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* @param string $lang |
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* @return array |
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*/ |
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public function loadTexts($lang) |
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{ |
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if ($this->environment != 'production' || $this->config->get('cache.enabled', true) === false) { |
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$texts = $this->repository->loadFromDatabase($lang); |
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return $texts; |
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} |
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if ($this->repository->existsInCache($lang)) { |
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$texts = $this->repository->loadFromCache($lang); |
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} else { |
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$texts = $this->repository->loadFromDatabase($lang); |
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$this->repository->storeInCache($lang, $texts); |
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} |
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return $texts; |
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} |
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/** |
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* Get translated text |
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* |
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* @param string $key |
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* @return string |
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*/ |
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public function get($key) |
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{ |
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if (empty($key)) { |
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throw new InvalidArgumentException('String key not provided'); |
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} |
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if (!$this->lang) { |
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return $key; |
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} |
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if (!isset($this->texts[$key])) { |
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$this->queueToSave($key); |
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return $key; |
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} |
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$text = $this->texts[$key]; |
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return $text; |
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} |
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/** |
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* Get texts |
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* |
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* @return array |
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*/ |
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public function getRedirectUrl(Request $request) |
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{ |
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$locale = $request->segment(1); |
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$fallback_locale = $this->config->get('default_locale'); |
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if (strlen($locale) == 2) { |
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$locales = $this->config->get('locales'); |
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if (!isset($locales[$locale])) { |
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$segments = $request->segments(); |
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$segments[0] = $fallback_locale; |
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$url = implode('/', $segments); |
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if ($query_string = $request->server->get('QUERY_STRING')) { |
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$url .= '?' . $query_string; |
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} |
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return $url; |
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} |
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} else { |
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$segments = $request->segments(); |
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$url = $fallback_locale . '/' . implode('/', $segments); |
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if ($query_string = $request->server->get('QUERY_STRING')) { |
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$url .= '?' . $query_string; |
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} |
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return $url; |
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} |
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return null; |
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} |
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public function detectLocale(Request $request) |
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{ |
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$locale = $request->segment(1); |
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$locales = $this->config->get('locales'); |
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if (isset($locales[$locale])) { |
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return isset($locales[$locale]['locale']) ? $locales[$locale]['locale'] : $locale; |
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} |
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return $this->config->get('default_locale', 'en'); |
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} |
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/** |
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* Get texts |
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* |
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* @return array |
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*/ |
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public function getTexts() |
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{ |
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return $this->texts; |
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} |
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/** |
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* Set texts manually |
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* |
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* @param array $texts_array |
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* @return \Longman\LaravelMultiLang\MultiLang |
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*/ |
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public function setTexts(array $texts_array) |
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{ |
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$texts = []; |
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foreach ($texts_array as $key => $value) { |
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$texts[$key] = $value; |
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} |
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$this->texts = $texts; |
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return $this; |
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} |
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/** |
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* Queue missing texts |
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* |
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* @param string $key |
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* @return void |
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*/ |
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protected function queueToSave($key) |
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{ |
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$this->new_texts[$key] = $key; |
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} |
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public function getUrl($path) |
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{ |
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$locale = $this->getLocale(); |
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if ($locale) { |
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$path = $locale . '/' . $path; |
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} |
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return $path; |
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} |
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public function autoSaveIsAllowed() |
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{ |
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if ($this->environment == 'local' && $this->config->get('db.autosave', true)) { |
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return true; |
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} |
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return false; |
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} |
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public function getLocale() |
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{ |
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return $this->lang; |
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} |
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public function getLocales() |
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{ |
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return $this->config->get('locales'); |
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} |
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public function saveTexts() |
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{ |
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if (empty($this->new_texts)) { |
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return false; |
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} |
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$this->repository->save($this->new_texts); |
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return true; |
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} |
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} |
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In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: