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Developer Documentation

See Release Notes

  • Bug fixes for general core bugs in 3.10.x will end 8 November 2021 (12 months).
  • Bug fixes for security issues in 3.10.x will end 9 May 2022 (18 months).
  • PHP version: minimum PHP 7.2.0 Note: minimum PHP version has increased since Moodle 3.8. PHP 7.3.x and 7.4.x are supported too.

Differences Between: [Versions 310 and 311] [Versions 310 and 400] [Versions 310 and 401] [Versions 310 and 402] [Versions 310 and 403]

   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   * This file contains tests for some of the code in ../datalib.php.
  19   *
  20   * @package    moodlecore
  21   * @subpackage questionengine
  22   * @copyright  2009 The Open University
  23   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24   */
  25  
  26  
  27  defined('MOODLE_INTERNAL') || die();
  28  
  29  global $CFG;
  30  require_once (__DIR__ . '/../lib.php');
  31  
  32  
  33  /**
  34   * Unit tests for qubaid_condition and subclasses.
  35   *
  36   * @copyright  2009 The Open University
  37   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  38   */
  39  class qubaid_condition_testcase extends advanced_testcase {
  40  
  41      protected function normalize_sql($sql, $params) {
  42          $newparams = array();
  43          preg_match_all('/(?<!:):([a-z][a-z0-9_]*)/', $sql, $named_matches);
  44          foreach($named_matches[1] as $param) {
  45              if (array_key_exists($param, $params)) {
  46                  $newparams[] = $params[$param];
  47              }
  48          }
  49          $newsql = preg_replace('/(?<!:):[a-z][a-z0-9_]*/', '?', $sql);
  50          return array($newsql, $newparams);
  51      }
  52  
  53      protected function check_typical_question_attempts_query(
  54              qubaid_condition $qubaids, $expectedsql, $expectedparams) {
  55          $sql = "SELECT qa.id, qa.maxmark
  56              FROM {$qubaids->from_question_attempts('qa')}
  57              WHERE {$qubaids->where()} AND qa.slot = :slot";
  58          $params = $qubaids->from_where_params();
  59          $params['slot'] = 1;
  60  
  61          // NOTE: parameter names may change thanks to $DB->inorequaluniqueindex, normal comparison is very wrong!!
  62          list($sql, $params) = $this->normalize_sql($sql, $params);
  63          list($expectedsql, $expectedparams) = $this->normalize_sql($expectedsql, $expectedparams);
  64  
  65          $this->assertEquals($expectedsql, $sql);
  66          $this->assertEquals($expectedparams, $params);
  67      }
  68  
  69      protected function check_typical_in_query(qubaid_condition $qubaids,
  70              $expectedsql, $expectedparams) {
  71          $sql = "SELECT qa.id, qa.maxmark
  72              FROM {question_attempts} qa
  73              WHERE qa.questionusageid {$qubaids->usage_id_in()}";
  74  
  75          // NOTE: parameter names may change thanks to $DB->inorequaluniqueindex, normal comparison is very wrong!!
  76          list($sql, $params) = $this->normalize_sql($sql, $qubaids->usage_id_in_params());
  77          list($expectedsql, $expectedparams) = $this->normalize_sql($expectedsql, $expectedparams);
  78  
  79          $this->assertEquals($expectedsql, $sql);
  80          $this->assertEquals($expectedparams, $params);
  81      }
  82  
  83      public function test_qubaid_list_one_join() {
  84          $qubaids = new qubaid_list(array(1));
  85          $this->check_typical_question_attempts_query($qubaids,
  86                  "SELECT qa.id, qa.maxmark
  87              FROM {question_attempts} qa
  88              WHERE qa.questionusageid = :qubaid1 AND qa.slot = :slot",
  89              array('qubaid1' => 1, 'slot' => 1));
  90      }
  91  
  92      public function test_qubaid_list_several_join() {
  93          $qubaids = new qubaid_list(array(1, 3, 7));
  94          $this->check_typical_question_attempts_query($qubaids,
  95                  "SELECT qa.id, qa.maxmark
  96              FROM {question_attempts} qa
  97              WHERE qa.questionusageid IN (:qubaid2,:qubaid3,:qubaid4) AND qa.slot = :slot",
  98              array('qubaid2' => 1, 'qubaid3' => 3, 'qubaid4' => 7, 'slot' => 1));
  99      }
 100  
 101      public function test_qubaid_join() {
 102          $qubaids = new qubaid_join("{other_table} ot", 'ot.usageid', 'ot.id = 1');
 103  
 104          $this->check_typical_question_attempts_query($qubaids,
 105                  "SELECT qa.id, qa.maxmark
 106              FROM {other_table} ot
 107                  JOIN {question_attempts} qa ON qa.questionusageid = ot.usageid
 108              WHERE ot.id = 1 AND qa.slot = :slot", array('slot' => 1));
 109      }
 110  
 111      public function test_qubaid_join_no_where_join() {
 112          $qubaids = new qubaid_join("{other_table} ot", 'ot.usageid');
 113  
 114          $this->check_typical_question_attempts_query($qubaids,
 115                  "SELECT qa.id, qa.maxmark
 116              FROM {other_table} ot
 117                  JOIN {question_attempts} qa ON qa.questionusageid = ot.usageid
 118              WHERE 1 = 1 AND qa.slot = :slot", array('slot' => 1));
 119      }
 120  
 121      public function test_qubaid_list_one_in() {
 122          global $CFG;
 123          $qubaids = new qubaid_list(array(1));
 124          $this->check_typical_in_query($qubaids,
 125                  "SELECT qa.id, qa.maxmark
 126              FROM {question_attempts} qa
 127              WHERE qa.questionusageid = :qubaid5", array('qubaid5' => 1));
 128      }
 129  
 130      public function test_qubaid_list_several_in() {
 131          global $CFG;
 132          $qubaids = new qubaid_list(array(1, 2, 3));
 133          $this->check_typical_in_query($qubaids,
 134                  "SELECT qa.id, qa.maxmark
 135              FROM {question_attempts} qa
 136              WHERE qa.questionusageid IN (:qubaid6,:qubaid7,:qubaid8)",
 137                  array('qubaid6' => 1, 'qubaid7' => 2, 'qubaid8' => 3));
 138      }
 139  
 140      public function test_qubaid_join_in() {
 141          global $CFG;
 142          $qubaids = new qubaid_join("{other_table} ot", 'ot.usageid', 'ot.id = 1');
 143  
 144          $this->check_typical_in_query($qubaids,
 145                  "SELECT qa.id, qa.maxmark
 146              FROM {question_attempts} qa
 147              WHERE qa.questionusageid IN (SELECT ot.usageid FROM {other_table} ot WHERE ot.id = 1)",
 148                  array());
 149      }
 150  
 151      public function test_qubaid_join_no_where_in() {
 152          global $CFG;
 153          $qubaids = new qubaid_join("{other_table} ot", 'ot.usageid');
 154  
 155          $this->check_typical_in_query($qubaids,
 156                  "SELECT qa.id, qa.maxmark
 157              FROM {question_attempts} qa
 158              WHERE qa.questionusageid IN (SELECT ot.usageid FROM {other_table} ot WHERE 1 = 1)",
 159                  array());
 160      }
 161  }