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<?php |
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/** |
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* This file is part of the eZ Publish Kernel package. |
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* |
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* @copyright Copyright (C) eZ Systems AS. All rights reserved. |
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* @license For full copyright and license information view LICENSE file distributed with this source code. |
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*/ |
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namespace eZ\Publish\Core\Search\Legacy\Content\WordIndexer\Repository; |
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use eZ\Publish\Core\Persistence\Database\DatabaseHandler; |
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use eZ\Publish\Core\Persistence\Database\SelectQuery; |
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use PDO; |
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/** |
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* A service encapsulating database operations on ezsearch* tables. |
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*/ |
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class SearchIndex |
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{ |
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/** |
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* Database handler. |
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* |
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* @var \eZ\Publish\Core\Persistence\Database\DatabaseHandler |
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*/ |
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protected $dbHandler; |
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/** |
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* SearchIndex constructor. |
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* |
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* @param \eZ\Publish\Core\Persistence\Database\DatabaseHandler $dbHandler |
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*/ |
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public function __construct( |
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DatabaseHandler $dbHandler |
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) { |
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$this->dbHandler = $dbHandler; |
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} |
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/** |
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* Fetch already indexed words from database (legacy db table: ezsearch_word). |
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* |
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* @param array $words |
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* |
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* @return array |
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*/ |
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public function getWords(array $words) |
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{ |
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$query = $this->dbHandler->createSelectQuery(); |
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// use array_map as some DBMS-es do not cast integers to strings by default |
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$query->select('*') |
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->from('ezsearch_word') |
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->where($query->expr->in('word', array_map('strval', $words))); |
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$stmt = $query->prepare(); |
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$stmt->execute(); |
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return $stmt->fetchAll(PDO::FETCH_ASSOC); |
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} |
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/** |
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* Increase the object count of the given words by one. |
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* |
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* @param array $wordId |
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*/ |
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public function incrementWordObjectCount(array $wordId) |
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{ |
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$this->updateWordObjectCount($wordId, ['object_count' => 'object_count + 1']); |
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} |
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/** |
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* Decrease the object count of the given words by one. |
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* |
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* @param array $wordId |
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*/ |
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public function decrementWordObjectCount(array $wordId) |
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{ |
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$this->updateWordObjectCount($wordId, ['object_count' => 'object_count - 1']); |
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} |
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/** |
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* Insert new words (legacy db table: ezsearch_word). |
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* |
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* @param array $words |
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*/ |
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public function addWords(array $words) |
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{ |
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$query = $this->dbHandler->createInsertQuery(); |
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$query->insertInto('ezsearch_word'); |
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$word = null; |
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$query->set( |
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'word', |
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':word' |
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)->set( |
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'object_count', |
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'1' |
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); |
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$stmt = $query->prepare(); |
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foreach ($words as $word) { |
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$stmt->execute(['word' => $word]); |
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} |
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} |
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/** |
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* Remove entire search index. |
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*/ |
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public function purge() |
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{ |
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$this->dbHandler->beginTransaction(); |
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$query = $this->dbHandler->createDeleteQuery(); |
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$tables = [ |
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'ezsearch_object_word_link', |
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'ezsearch_return_count', |
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'ezsearch_search_phrase', |
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'ezsearch_word', |
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]; |
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foreach ($tables as $tbl) { |
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$query->deleteFrom($tbl); |
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$stmt = $query->prepare(); |
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$stmt->execute(); |
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} |
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$this->dbHandler->commit(); |
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} |
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/** |
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* Link word with specific content object (legacy db table: ezsearch_object_word_link). |
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* |
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* @param $wordId |
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* @param $contentId |
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* @param $frequency |
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* @param $placement |
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* @param $nextWordId |
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* @param $prevWordId |
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* @param $contentTypeId |
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* @param $fieldTypeId |
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* @param $published |
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* @param $sectionId |
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* @param $identifier |
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* @param $integerValue |
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*/ |
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public function addObjectWordLink($wordId, $contentId, $frequency, $placement, $nextWordId, $prevWordId, |
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$contentTypeId, $fieldTypeId, $published, $sectionId, $identifier, |
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$integerValue) |
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{ |
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$assoc = [ |
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'word_id' => $wordId, |
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'contentobject_id' => $contentId, |
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'frequency' => $frequency, |
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'placement' => $placement, |
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'next_word_id' => $nextWordId, |
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'prev_word_id' => $prevWordId, |
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'contentclass_id' => $contentTypeId, |
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'contentclass_attribute_id' => $fieldTypeId, |
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'published' => $published, |
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'section_id' => $sectionId, |
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'identifier' => $identifier, |
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'integer_value' => $integerValue, |
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]; |
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$query = $this->dbHandler->createInsertQuery(); |
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$query->insertInto('ezsearch_object_word_link'); |
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foreach ($assoc as $column => $value) { |
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$query->set($this->dbHandler->quoteColumn($column), $query->bindValue($value)); |
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} |
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$stmt = $query->prepare(); |
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$stmt->execute(); |
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} |
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/** |
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* Get all words related to the content object (legacy db table: ezsearch_object_word_link). |
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* |
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* @param $contentId |
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* |
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* @return array |
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*/ |
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public function getContentObjectWords($contentId) |
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{ |
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$query = $this->dbHandler->createSelectQuery(); |
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$this->setContentObjectWordsSelectQuery($query); |
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$stmt = $query->prepare(); |
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$stmt->execute(['contentId' => $contentId]); |
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$wordIDList = []; |
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while (false !== ($row = $stmt->fetch(PDO::FETCH_NUM))) { |
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$wordIDList[] = $row[0]; |
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} |
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return $wordIDList; |
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} |
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/** |
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* Delete words not related to any content object. |
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*/ |
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View Code Duplication |
public function deleteWordsWithoutObjects() |
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{ |
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$query = $this->dbHandler->createDeleteQuery(); |
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$query->deleteFrom($this->dbHandler->quoteTable('ezsearch_word')) |
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->where($query->expr->eq($this->dbHandler->quoteColumn('object_count'), ':c')); |
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$stmt = $query->prepare(); |
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$stmt->execute(['c' => 0]); |
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} |
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/** |
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* Delete relation between a word and a content object. |
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* |
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* @param $contentId |
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*/ |
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View Code Duplication |
public function deleteObjectWordsLink($contentId) |
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{ |
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$query = $this->dbHandler->createDeleteQuery(); |
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$query->deleteFrom($this->dbHandler->quoteTable('ezsearch_object_word_link')) |
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->where($query->expr->eq($this->dbHandler->quoteColumn('contentobject_id'), ':contentId')); |
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$stmt = $query->prepare(); |
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$stmt->execute(['contentId' => $contentId]); |
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} |
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/** |
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* Set query selecting word ids for content object (method was extracted to be reusable). |
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* |
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* @param \eZ\Publish\Core\Persistence\Database\SelectQuery $query |
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*/ |
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private function setContentObjectWordsSelectQuery(SelectQuery $query) |
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{ |
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$query->select('word_id') |
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->from($this->dbHandler->quoteTable('ezsearch_object_word_link')) |
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->where($query->expr->eq($this->dbHandler->quoteColumn('contentobject_id'), ':contentId')); |
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} |
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/** |
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* Update object count for words (legacy db table: ezsearch_word). |
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* |
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* @param array $wordId list of word IDs |
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* @param array $columns map of columns and values to be updated ([column => value]) |
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*/ |
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private function updateWordObjectCount(array $wordId, array $columns) |
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{ |
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$query = $this->dbHandler->createUpdateQuery(); |
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$query->update($this->dbHandler->quoteTable('ezsearch_word')); |
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foreach ($columns as $column => $value) { |
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$query->set($this->dbHandler->quoteColumn($column), $value); |
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} |
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$query->where($query->expr->in($this->dbHandler->quoteColumn('id'), $wordId)); |
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$stmt = $query->prepare(); |
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$stmt->execute(); |
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} |
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} |
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