PHPXRef 0.7.1 : Unnamed Project : Detail view of calculated.php

Question statistics calculations class. Used in the quiz statistics report but also available for use elsewhere.

Author:	Jamie Pratt <me@jamiep.org>
Copyright:	2013 Open University
License:	http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
File Size:	303 lines (9 kb)
Included or required:	0 times
Referenced:	0 times
Includes or requires:	0 files

Defines 1 class

calculated:: (9 methods):
  __construct()
  random_selector_string()
  cache()
  populate_from_record()
  sort_variants()
  get_sub_question_ids()
  get_variants()
  break_down_by_variant()
  clear_variants()

Class: calculated - X-Ref

This class is used to return the stats as calculated by {@link \core_question\statistics\questions\calculator}

__construct($question = null, $slot = null, $variant = null) X-Ref

Set up a calculated instance ready to store a question's (or a variant of a slot's question's)
stats for one slot in the quiz.

param: null|object $question
param: null|int $slot
param: null|int $variant

random_selector_string() X-Ref

Used to determine which random questions pull sub questions from the same pools. Where pool means category and possibly
all the sub categories of that category.

return: null|string represents the pool of questions from which this question draws if it is random, or null if not.

cache($qubaids) X-Ref

Cache calculated stats stored in this object in 'question_statistics' table.

param: \qubaid_condition $qubaids

populate_from_record($record) X-Ref

Load properties of this class from db record.

param: object $record Given a record from 'question_statistics' copy stats from record to properties.

sort_variants() X-Ref

Sort the variants of this question by variant number.

get_sub_question_ids() X-Ref

Get any sub question ids for this question.

return: int[] array of sub-question ids or empty array if there are none.

get_variants() X-Ref

Array of variants that have appeared in the attempt data for this question. Or an empty array if there is only one variant.

return: int[] the variant nos.

break_down_by_variant() X-Ref

Do we break down the stats for this question by variant or not?

return: bool Do we?

clear_variants() X-Ref

Delete the data structure for storing variant stats.

PHP Cross Reference of Unnamed Project

/question/classes/statistics/questions/ -> calculated.php (summary)

Defines 1 class