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<?php |
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namespace TeamTNT\Scout\Engines; |
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use Illuminate\Database\Eloquent\Collection; |
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use Laravel\Scout\Builder; |
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use Laravel\Scout\Engines\Engine; |
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use TeamTNT\TNTSearch\TNTSearch; |
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class TNTSearchEngine extends Engine |
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{ |
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/** |
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* @var TNTSearch |
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*/ |
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protected $tnt; |
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/** |
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* Create a new engine instance. |
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* |
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* @param TNTSearch $tnt |
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*/ |
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public function __construct(TNTSearch $tnt) |
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{ |
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$this->tnt = $tnt; |
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} |
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/** |
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* Update the given model in the index. |
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* |
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* @param Collection $models |
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* |
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* @return void |
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*/ |
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public function update($models) |
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{ |
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$this->initIndex($models->first()); |
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$models->each(function ($model) { |
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$searchableFields = $model->toSearchableArray(); |
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$this->tnt->selectIndex("{$model->searchableAs()}.index"); |
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$index = $this->tnt->getIndex(); |
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$index->setPrimaryKey($model->getKeyName()); |
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if ($model->getKey()) { |
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$index->update($model->getKey(), $searchableFields); |
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} else { |
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$index->insert($searchableFields); |
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} |
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}); |
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} |
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/** |
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* Remove the given model from the index. |
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* |
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* @param Collection $models |
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* |
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* @return void |
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*/ |
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public function delete($models) |
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{ |
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$this->initIndex($models->first()); |
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$models->each(function ($model) { |
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$this->tnt->selectIndex("{$model->searchableAs()}.index"); |
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$index = $this->tnt->getIndex(); |
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$index->setPrimaryKey($model->getKeyName()); |
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$index->delete($model->id); |
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}); |
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} |
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/** |
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* Perform the given search on the engine. |
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* |
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* @param Builder $builder |
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* |
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* @return mixed |
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*/ |
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public function search(Builder $builder) |
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{ |
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return $this->performSearch($builder); |
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} |
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/** |
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* Perform the given search on the engine. |
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* |
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* @param Builder $builder |
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* @param int $perPage |
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* @param int $page |
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* |
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* @return mixed |
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*/ |
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public function paginate(Builder $builder, $perPage, $page) |
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{ |
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$builder->limit = 500; |
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$results = $this->performSearch($builder); |
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$chunks = array_chunk($results['ids'], $perPage); |
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if (!empty($chunks)) { |
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if (array_key_exists($page - 1, $chunks)) { |
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$results['ids'] = $chunks[$page - 1]; |
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} else { |
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$results['ids'] = end($chunks); |
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} |
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} |
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return $results; |
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} |
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/** |
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* Perform the given search on the engine. |
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* |
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* @param Builder $builder |
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* |
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* @return mixed |
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*/ |
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protected function performSearch(Builder $builder) |
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{ |
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$index = $builder->index ?: $builder->model->searchableAs(); |
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$limit = $builder->limit ?: 10; |
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$this->tnt->selectIndex("{$index}.index"); |
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return $this->tnt->search($builder->query, $limit); |
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} |
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/** |
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* Get the filter array for the query. |
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* |
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* @param Builder $builder |
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* |
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* @return array |
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*/ |
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protected function filters(Builder $builder) |
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{ |
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return collect($builder->wheres)->map(function ($value, $key) { |
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return $key.'='.$value; |
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})->values()->all(); |
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} |
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/** |
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* Map the given results to instances of the given model. |
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* |
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* @param mixed $results |
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* @param \Illuminate\Database\Eloquent\Model $model |
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* |
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* @return Collection |
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*/ |
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public function map($results, $model) |
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{ |
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if (count($results['ids']) === 0) { |
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return Collection::make(); |
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} |
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$keys = collect($results['ids']); |
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$models = $model->whereIn( |
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$model->getKeyName(), $keys |
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)->get()->keyBy($model->getKeyName()); |
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return collect($results['ids'])->map(function ($hit) use ($models) { |
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return $models[$hit]; |
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}); |
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} |
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/** |
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* Get the total count from a raw result returned by the engine. |
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* |
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* @param mixed $results |
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* @return int |
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*/ |
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public function getTotalCount($results) |
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{ |
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return count($results['ids']); |
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} |
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public function initIndex($model) |
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{ |
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$indexName = $model->searchableAs(); |
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if (!file_exists($this->tnt->config['storage']."/{$indexName}.index")) { |
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$indexer = $this->tnt->createIndex("$indexName.index"); |
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$indexer->setDatabaseHandle($model->getConnection()->getPdo()); |
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$indexer->disableOutput = true; |
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$indexer->setPrimaryKey($model->getKeyName()); |
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$fields = implode(', ', array_keys($model->toSearchableArray())); |
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$indexer->query("SELECT {$model->getKeyName()}, $fields FROM {$model->getTable()} WHERE {$model->getKeyName()} = {$model->getKey()}"); |
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$indexer->run(); |
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} |
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} |
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} |
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teamtnt /
laravel-scout-tntsearch-driver
