MDL-77136 core_question: Newest versions get_questions_from_categories

question/engine/bank.php

@@ -532,8 +532,8 @@ public function load_question_data($questionid) {
 
     /**
      * Get the ids of all the questions in a list of categories.
-     * @param array $categoryids either a categoryid, or a comma-separated list
-     *      category ids, or an array of them.
+     * @param array $categoryids either a category id, or a comma-separated list
+     *      of category ids, or an array of them.
      * @param string $extraconditions extra conditions to AND with the rest of
      *      the where clause. Must use named parameters.
      * @param array $extraparams any parameters used by $extraconditions.
@@ -549,13 +549,20 @@ public function get_questions_from_categories($categoryids, $extraconditions,
             $extraconditions = ' AND (' . $extraconditions . ')';
         }
         $qcparams['readystatus'] = question_version_status::QUESTION_STATUS_READY;
+        $qcparams['readystatusqv'] = question_version_status::QUESTION_STATUS_READY;
         $sql = "SELECT q.id, q.id AS id2
                   FROM {question} q
                   JOIN {question_versions} qv ON qv.questionid = q.id
                   JOIN {question_bank_entries} qbe ON qbe.id = qv.questionbankentryid
                  WHERE qbe.questioncategoryid {$qcsql}
                        AND q.parent = 0
                        AND qv.status = :readystatus
+                       AND qv.version = (SELECT MAX(v.version)
+                                          FROM {question_versions} v
+                                          JOIN {question_bank_entries} be
+                                            ON be.id = v.questionbankentryid
+                                         WHERE be.id = qbe.id
+                                           AND v.status = :readystatusqv)
                        {$extraconditions}";
 
         return $DB->get_records_sql_menu($sql, $qcparams + $extraparams);

question/engine/tests/questionbank_test.php

@@ -16,6 +16,7 @@
 
 namespace core_question;
 
+use core_question\local\bank\question_version_status;
 use qubaid_list;
 use question_bank;
 use question_engine;
@@ -97,4 +98,46 @@ public function test_load_many_for_cache_missing_id() {
         $this->expectException(\dml_missing_record_exception::class);
         question_finder::get_instance()->load_many_for_cache([-1]);
     }
+
+    /**
+     * Test get_questions_from_categories.
+     *
+     * @covers \question_finder::get_questions_from_categories
+     *
+     * @return void
+     */
+    public function test_get_questions_from_categories(): void {
+        $this->resetAfterTest();
+
+        /** @var core_question_generator $questiongenerator */
+        $questiongenerator = $this->getDataGenerator()->get_plugin_generator('core_question');
+
+        // Create three questions in a question bank category, each with three versions.
+        // The first question has all three versions in status ready.
+        $cat = $questiongenerator->create_question_category();
+        $q1v1 = $questiongenerator->create_question('truefalse', null, ['name' => 'Q1V1', 'category' => $cat->id]);
+        $q1v2 = $questiongenerator->update_question($q1v1, null, ['name' => 'Q1V2']);
+        $q1v3 = $questiongenerator->update_question($q1v2, null, ['name' => 'Q1V3']);
+        // The second question has the first version in status draft, the second version in status ready,
+        // and third version in status draft.
+        $q2v1 = $questiongenerator->create_question('numerical', null, ['name' => 'Q2V2', 'category' => $cat->id,
+            'status' => question_version_status::QUESTION_STATUS_DRAFT, ]);
+        $q2v2 = $questiongenerator->update_question($q2v1, null, ['name' => 'Q2V2',
+            'status' => question_version_status::QUESTION_STATUS_READY, ]);
+        $q2v3 = $questiongenerator->update_question($q2v2, null,
+            ['name' => 'Q2V3', 'status' => question_version_status::QUESTION_STATUS_DRAFT]);
+        // The third question has all three version in status draft.
+        $q3v1 = $questiongenerator->create_question('shortanswer', null, ['name' => 'Q3V1', 'category' => $cat->id,
+            'status' => question_version_status::QUESTION_STATUS_DRAFT, ]);
+        $q3v2 = $questiongenerator->update_question($q3v1, null, ['name' => 'Q3V2',
+            'status' => question_version_status::QUESTION_STATUS_DRAFT, ]);
+        $q3v3 = $questiongenerator->update_question($q3v2, null, ['name' => 'Q3V3',
+            'status' => question_version_status::QUESTION_STATUS_DRAFT]);
+
+        // Test the returned array of questions in that category is the desired one with version three of the first
+        // question, version two of the second question, and the third question omitted completely since there are
+        // only draft versions.
+        $this->assertEquals([$q1v3->id => $q1v3->id, $q2v2->id => $q2v2->id],
+            question_bank::get_finder()->get_questions_from_categories([$cat->id], ""));
+    }
 }

question/type/randomsamatch/question.php

@@ -37,6 +37,12 @@ class qtype_randomsamatch_question extends qtype_match_question {
     /** @var qtype_randomsamatch_question_loader helper for loading the shortanswer questions. */
     public $questionsloader;
 
+    /** @var int the number of subquestions to randomly create. */
+    public $choose;
+
+    /** @var bool whether to include questions from subactegories when making the random selection. */
+    public $subcats;
+
     public function start_attempt(question_attempt_step $step, $variant) {
         $saquestions = $this->questionsloader->load_questions();
         foreach ($saquestions as $wrappedquestion) {