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<?php |
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namespace GinoPane\BlogTaxonomy\Components; |
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use DB; |
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use Cms\Classes\Page; |
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use RainLab\Blog\Models\Post; |
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use GinoPane\BlogTaxonomy\Plugin; |
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use GinoPane\BlogTaxonomy\Models\Tag; |
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use October\Rain\Database\Collection; |
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use GinoPane\BlogTaxonomy\Models\ModelAbstract; |
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use GinoPane\BlogTaxonomy\Classes\PostListAbstract; |
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use GinoPane\BlogTaxonomy\Classes\ComponentAbstract; |
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use GinoPane\BlogTaxonomy\Classes\TranslateArrayTrait; |
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use GinoPane\BlogTaxonomy\Classes\PostListFiltersTrait; |
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/** |
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* Class RelatedPosts |
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* |
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* @package GinoPane\BlogTaxonomy\Components |
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*/ |
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class RelatedPosts extends ComponentAbstract |
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{ |
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const NAME = 'relatedPosts'; |
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use TranslateArrayTrait; |
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use PostListFiltersTrait; |
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/** |
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* @var Collection | array |
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*/ |
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public $posts = []; |
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/** |
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* Reference to the page name for linking to posts |
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* |
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* @var string |
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*/ |
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public $postPage; |
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/** |
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* If the post list should be ordered by another attribute |
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* |
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* @var string |
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*/ |
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public $orderBy; |
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/** |
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* Limits the number of records to display |
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* |
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* @var int |
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*/ |
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public $limit; |
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/** |
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* Component Registration |
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* |
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* @return array |
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*/ |
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public function componentDetails(): array |
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{ |
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return [ |
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'name' => Plugin::LOCALIZATION_KEY . 'components.related_posts.name', |
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'description' => Plugin::LOCALIZATION_KEY . 'components.related_posts.description' |
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]; |
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} |
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/** |
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* Component Properties |
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* |
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* @return array |
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*/ |
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public function defineProperties(): array |
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{ |
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return array_merge([ |
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'slug' => [ |
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'title' => Plugin::LOCALIZATION_KEY . 'components.related_posts.post_slug_title', |
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'description' => Plugin::LOCALIZATION_KEY . 'components.related_posts.post_slug_description', |
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'default' => '{{ :slug }}', |
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'type' => 'string' |
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], |
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'limit' => [ |
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'title' => Plugin::LOCALIZATION_KEY . 'components.related_posts.limit_title', |
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'description' => Plugin::LOCALIZATION_KEY . 'components.related_posts.limit_description', |
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'type' => 'string', |
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'default' => '0', |
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'validationPattern' => '^[0-9]+$', |
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'validationMessage' => Plugin::LOCALIZATION_KEY . 'components.related_posts.limit_validation_message', |
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'showExternalParam' => false |
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], |
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'orderBy' => [ |
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'title' => 'rainlab.blog::lang.settings.posts_order', |
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'description' => 'rainlab.blog::lang.settings.posts_order_description', |
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'type' => 'dropdown', |
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'default' => 'published_at asc', |
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'showExternalParam' => false |
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], |
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'postPage' => [ |
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'group' => Plugin::LOCALIZATION_KEY . 'components.related_posts.links_group', |
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'title' => 'rainlab.blog::lang.settings.posts_post', |
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'description' => 'rainlab.blog::lang.settings.posts_description', |
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'type' => 'dropdown', |
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'default' => 'blog/post', |
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], |
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], $this->getPostFilterProperties()); |
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} |
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/** |
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* @see PostListAbstract::$postAllowedSortingOptions |
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* |
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* @return mixed |
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*/ |
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public function getOrderByOptions() |
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{ |
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$order = $this->translate( |
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array_merge( |
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[ |
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'relevance asc' => Plugin::LOCALIZATION_KEY . 'order_options.relevance_asc', |
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'relevance desc' => Plugin::LOCALIZATION_KEY . 'order_options.relevance_desc' |
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], |
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PostListAbstract::$postAllowedSortingOptions |
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) |
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); |
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asort($order); |
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return $order; |
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} |
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private function prepareVars() |
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{ |
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$this->orderBy = $this->page['orderBy'] = $this->property('orderBy'); |
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// Page links |
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$this->postPage = $this->page['postPage' ] = $this->property('postPage'); |
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// Exceptions |
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$this->populateFilters(); |
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} |
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public function getPostPageOptions() |
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{ |
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return Page::sortBy('baseFileName')->lists('baseFileName', 'baseFileName'); |
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} |
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/** |
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* Load post and start building query for related posts |
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*/ |
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public function onRun() |
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{ |
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//Prepare vars |
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$this->prepareVars(); |
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$this->posts = $this->loadRelatedPosts(); |
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} |
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/** |
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* Load related posts by common tags |
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* |
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* @return mixed |
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*/ |
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private function loadRelatedPosts() |
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{ |
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$post = Post::with('tags'); |
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ModelAbstract::whereTranslatableProperty($post, 'slug', $this->property('slug')); |
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$post = $post->first(); |
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if (!$post || (!$tagIds = $post->tags->lists('id'))) { |
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return null; |
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} |
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$query = Post::isPublished() |
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->where('id', '<>', $post->id) |
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->whereHas('tags', function ($tag) use ($tagIds) { |
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$tag->whereIn('id', $tagIds); |
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}) |
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->with('tags'); |
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$this->handlePostFilters($query); |
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$this->queryOrderBy($query, $tagIds); |
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if ($take = (int)$this->property('limit')) { |
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$query->take($take); |
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} |
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$posts = $query->get(); |
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$this->setPostUrls($posts); |
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return $posts; |
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} |
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/** |
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* @param $query |
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* @param $tagIds |
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*/ |
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private function queryOrderBy($query, $tagIds) |
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{ |
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if (array_key_exists($this->orderBy, $this->getOrderByOptions())) { |
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if ($this->orderBy === 'random') { |
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$query->inRandomOrder(); |
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} else { |
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list($sortField, $sortDirection) = explode(' ', $this->orderBy); |
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if ($sortField === 'relevance') { |
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$sortField = DB::raw( |
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sprintf( |
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'( |
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select count(*) |
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from `%1$s` |
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where |
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`%1$s`.`%2$s_type` = \'RainLab\Blog\Models\Post\' |
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and `%1$s`.`%2$s_id` = `rainlab_blog_posts`.`id` |
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and `%1$s`.`tag_id` in (\'%3$s\') |
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)', |
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Tag::PIVOT_TABLE, |
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Tag::PIVOT_COLUMN, |
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implode('\', \'', $tagIds) |
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) |
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); |
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} |
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$query->orderBy($sortField, $sortDirection); |
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} |
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} |
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} |
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} |
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Our type inference engine in quite powerful, but sometimes the code does not provide enough clues to go by. In these cases we request you to add a
@returnannotation as described here.