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   1  <?php
   2  // This file is part of Moodle - http://moodle.org/
   3  //
   4  // Moodle is free software: you can redistribute it and/or modify
   5  // it under the terms of the GNU General Public License as published by
   6  // the Free Software Foundation, either version 3 of the License, or
   7  // (at your option) any later version.
   8  //
   9  // Moodle is distributed in the hope that it will be useful,
  10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  // GNU General Public License for more details.
  13  //
  14  // You should have received a copy of the GNU General Public License
  15  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16  
  17  /**
  18   * Post installation and migration code.
  19   *
  20   * @package    search_simpledb
  21   * @copyright  2016 Dan Poltawski <dan@moodle.com>
  22   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23   */
  24  
  25  defined('MOODLE_INTERNAL') || die;
  26  
  27  /**
  28   * Post installation code.
  29   *
  30   * @package    search_simpledb
  31   * @copyright  2016 Dan Poltawski <dan@moodle.com>
  32   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  33   */
  34  function xmldb_search_simpledb_install() {
  35      global $DB;
  36  
  37      switch ($DB->get_dbfamily()) {
  38          case 'postgres':
  39              // There are a few other ways of doing this which avoid the need for individual indexes.
  40              $DB->execute("CREATE INDEX {search_simpledb_title} ON {search_simpledb_index} " .
  41                  "USING gin(to_tsvector('simple', title))");
  42              $DB->execute("CREATE INDEX {search_simpledb_content} ON {search_simpledb_index} " .
  43                  "USING gin(to_tsvector('simple', content))");
  44              $DB->execute("CREATE INDEX {search_simpledb_description1} ON {search_simpledb_index} " .
  45                  "USING gin(to_tsvector('simple', description1))");
  46              $DB->execute("CREATE INDEX {search_simpledb_description2} ON {search_simpledb_index} " .
  47                  "USING gin(to_tsvector('simple', description2))");
  48              break;
  49          case 'mysql':
  50              if ($DB->is_fulltext_search_supported()) {
  51                  $DB->execute("CREATE FULLTEXT INDEX {search_simpledb_index_index}
  52                                ON {search_simpledb_index} (title, content, description1, description2)");
  53              }
  54              break;
  55          case 'mssql':
  56              if ($DB->is_fulltext_search_supported()) {
  57  
  58                  $catalogname = $DB->get_prefix() . 'search_simpledb_catalog';
  59                  if (!$DB->record_exists_sql('SELECT * FROM sys.fulltext_catalogs WHERE name = ?', array($catalogname))) {
  60                      $DB->execute("CREATE FULLTEXT CATALOG {search_simpledb_catalog} WITH ACCENT_SENSITIVITY=OFF");
  61                  }
  62  
  63                  if (defined('PHPUNIT_UTIL') and PHPUNIT_UTIL) {
  64                      // We want manual tracking for phpunit because the fulltext index does get auto populated fast enough.
  65                      $changetracking = 'MANUAL';
  66                  } else {
  67                      $changetracking = 'AUTO';
  68                  }
  69                  $DB->execute("CREATE FULLTEXT INDEX ON {search_simpledb_index} (title, content, description1, description2)
  70                                KEY INDEX {searsimpinde_id_pk} ON {search_simpledb_catalog} WITH CHANGE_TRACKING $changetracking");
  71              }
  72              break;
  73      }
  74  }
  75