question_variant_pseudorandom_no_repeats_strategy Class Reference

Inheritance diagram for question_variant_pseudorandom_no_repeats_strategy:

Collaboration diagram for question_variant_pseudorandom_no_repeats_strategy:

Public Member Functions
	__construct ($attemptno, $userid=null)
	choose_variant ($maxvariants, $seed)
Protected Attributes
	$attemptno
	$userid

---

Detailed Description

A question_variant_selection_strategy that is effectively random for the first attempt, and then after that cycles through the available variants so that the students will not get a repeated variant until they have seen them all.

Copyright:

2011 The Open University http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

Definition at line 834 of file lib.php.

---

Constructor & Destructor Documentation

__construct	(	$	attemptno,
		$	userid = null
	)

Constructor.

Parameters:

int	$attemptno	The attempt number.
int	$userid	the user the attempt is for (defaults to $USER->id).

Definition at line 848 of file lib.php.

---

Member Function Documentation

choose_variant	(	$	maxvariants,
		$	seed
	)

Parameters:

int	$maxvariants	the num
string	$seed	data that can be used to controls how the variant is selected in a semi-random way.

Returns:

int the variant to use, a number betweeb 1 and $maxvariants inclusive.

Implements question_variant_selection_strategy.

Definition at line 858 of file lib.php.

---

Field Documentation

$attemptno [protected]

Definition at line 838 of file lib.php.

$userid [protected]

Definition at line 841 of file lib.php.

---

The documentation for this class was generated from the following file:

• C:/xampp/htdocs/moodle/question/engine/lib.php