General help

Hi Adilet. I want to offer a friendly piece of advice that might be helpful... It would be better to provide some context and additional details about your question, such as, what are you trying to do?

I was able to find the function you asked about in my Moodle source code...

grep -r 'function get_num_steps' moodle_code_directory

Using that, I discovered this:

./question/engine/questionattempt.php:    public function get_num_steps() {

So that function is part of the question module. In looking at that function in the questionattempt.php file, I see:

    /**

     * Get the number of steps in this attempt.

     * For internal/test code use only.

     * @return int the number of steps we currently have.

     */

    public function get_num_steps() {

        return count($this->steps);

    }

It says it is for internal/test code use only, but it is called/used throughout the question engine:

question/behaviour/missing/tests/missingbehaviour_test.php:        $this->assertEquals(2, $qa->get_num_steps());

question/engine/questionattempt.php:        $numrealsteps = $this->get_num_steps();

question/engine/questionattempt.php:    public function get_num_steps() {

question/engine/questionattempt.php:        if ($this->get_num_steps() == 1 && $this->get_state() == question_state::$complete) {

question/engine/questionattempt.php:        if ($this->get_num_steps() > 0) {

question/engine/questionattempt.php:        if ($lastseq < 0 || $lastseq >= $this->baseqa->get_num_steps()) {

question/engine/questionattempt.php:        return $i >= 0 && $i < $this->qa->get_num_steps();

question/engine/questionattempt.php:        $this->i = $this->qa->get_num_steps() - 1;

question/engine/renderer.php:            if ($stepno == $qa->get_num_steps()) {

question/engine/tests/helpers.php:        return $this->get_question_attempt()->get_num_steps();

question/engine/tests/questionattempt_db_test.php:        $this->assertEquals(6, $qa->get_num_steps());

question/engine/tests/questionattempt_db_test.php:        $this->assertEquals(1, $qa->get_num_steps());

question/engine/tests/questionattempt_db_test.php:        $this->assertEquals(4, $qa->get_num_steps());

question/engine/tests/questionattempt_db_test.php:        $this->assertEquals(3, $qa->get_num_steps());

question/engine/tests/questionattempt_with_steps_test.php:    public function test_get_num_steps() {

question/engine/tests/questionattempt_with_steps_test.php:        $this->assertEquals(3, $this->qa->get_num_steps());

question/engine/tests/questionusagebyactivity_data_test.php:        $this->assertEquals(3, $qa->get_num_steps());

question/engine/tests/questionusagebyactivity_data_test.php:        $this->assertEquals(0, $qa->get_num_steps());

question/engine/tests/unitofwork_test.php:        $this->assertEquals($updatedattempt->get_num_steps(), count($updatedsteps));

question/engine/tests/unitofwork_test.php:        $this->assertEquals($updatedattempt->get_num_steps(), count($updatedsteps));

question/engine/tests/unitofwork_test.php:        $this->assertEquals($updatedattempt->get_num_steps(), count($updatedsteps));

It would seem that this function is what is used to track/determine the number of steps in an individual question. The class that implements the get_num_steps method has this documentation:

 * Tracks an attempt at one particular question in a {@link question_usage_by_activity}.

 *

 * Most calling code should need to access objects of this class. They should be

 * able to do everything through the usage interface. This class is an internal

 * implementation detail of the question engine.

 *

 * Instances of this class correspond to rows in the question_attempts table, and

 * a collection of {@link question_attempt_steps}. Question inteaction models and

 * question types do work with question_attempt objects

I hope that gets you started.

Jamie