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<?php |
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/** |
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* |
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* Precise Similar Topics |
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* |
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* @copyright (c) 2018 Matt Friedman |
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* @license GNU General Public License, version 2 (GPL-2.0) |
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* |
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*/ |
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namespace vse\similartopics\migrations\release_1_5_x; |
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class postgres_index extends \phpbb\db\migration\migration |
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{ |
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/** |
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* Do not run this migration if the DB is not PostgreSQL |
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* |
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* @return bool |
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*/ |
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public function effectively_installed() |
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{ |
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return $this->db->get_sql_layer() !== 'postgres' || $this->config->offsetExists('pst_postgres_ts_name'); |
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} |
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public static function depends_on() |
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{ |
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return array('\vse\similartopics\migrations\release_1_4_3_data'); |
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} |
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public function update_data() |
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{ |
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return array( |
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array('config.add', array('pst_postgres_ts_name', $this->get_ts_name())), |
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array('if', array( |
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$this->db->get_sql_layer() === 'postgres', |
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array('custom', array(array($this, 'create_postgres_index'))), |
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)), |
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); |
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} |
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View Code Duplication |
public function revert_data() |
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{ |
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return array( |
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array('if', array( |
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$this->db->get_sql_layer() === 'postgres', |
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array('custom', array(array($this, 'drop_postgres_changes'))), |
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)), |
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); |
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} |
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/** |
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* Create PostgreSQL FULLTEXT index for the topic_title |
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*/ |
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public function create_postgres_index() |
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{ |
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$driver = $this->get_driver(); |
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$driver->create_fulltext_index(); |
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} |
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/** |
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* Drop the PostgreSQL FULLTEXT index on phpbb_topics.topic_title |
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*/ |
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public function drop_postgres_changes() |
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{ |
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$driver = $this->get_driver(); |
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foreach ($driver->get_fulltext_indexes() as $index) |
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{ |
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$sql = 'DROP INDEX ' . $index; |
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$this->db->sql_query($sql); |
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} |
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} |
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/** |
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* Get an instance of the similartopics POSTGRES driver |
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* |
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* @return \vse\similartopics\driver\postgres |
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*/ |
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protected function get_driver() |
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{ |
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return new \vse\similartopics\driver\postgres($this->db, $this->config); |
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} |
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protected function get_ts_name() |
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{ |
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return $this->config->offsetExists('fulltext_postgres_ts_name') ? $this->config['fulltext_postgres_ts_name'] : 'simple'; |
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} |
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} |
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iMattPro /
similartopics
