Inheritance diagram for question_engine_unit_of_work:

Collaboration diagram for question_engine_unit_of_work:

Public Member Functions
	__construct (question_usage_by_activity $quba)
	notify_modified ()
	notify_attempt_modified (question_attempt $qa)
	notify_attempt_added (question_attempt $qa)
	notify_step_added (question_attempt_step $step, question_attempt $qa, $seq)
	notify_step_modified (question_attempt_step $step, question_attempt $qa, $seq)
	notify_step_deleted (question_attempt_step $step, question_attempt $qa)
	save (question_engine_data_mapper $dm)
Protected Member Functions
	is_step_added (question_attempt_step $step)
	is_step_modified (question_attempt_step $step)
	is_step_deleted (question_attempt_step $step)
Protected Attributes
	$quba
	$modified = false
	$attemptsmodified = array()
	$attemptsadded = array()
	$stepsadded = array()
	$stepsmodified = array()
	$stepsdeleted = array()

Detailed Description

Implementation of the unit of work pattern for the question engine.

See http://martinfowler.com/eaaCatalog/unitOfWork.html. This tracks all the changes to a question_usage_by_activity, and its constituent parts, so that the changes can be saved to the database when save() is called.

Copyright:: 2009 The Open University http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

Definition at line 1006 of file datalib.php.

Constructor & Destructor Documentation

__construct ( question_usage_by_activity $ quba )

Constructor.

Parameters:

question_usage_by_activity $quba the usage to track.

Definition at line 1047 of file datalib.php.

Member Function Documentation

is_step_added ( question_attempt_step $ step ) [protected]

Parameters:

question_attempt_step $step a step

Returns:: int|false if the step is in the list of steps to be added, return the key, otherwise return false.

Definition at line 1145 of file datalib.php.

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is_step_deleted ( question_attempt_step $ step ) [protected]

Parameters:

question_attempt_step $step a step

Returns:: bool whether the step is in the list of steps to be deleted.

Definition at line 1174 of file datalib.php.

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is_step_modified ( question_attempt_step $ step ) [protected]

Parameters:

question_attempt_step $step a step

Returns:: int|false if the step is in the list of steps to be modified, return the key, otherwise return false.

Definition at line 1160 of file datalib.php.

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notify_attempt_added ( question_attempt $ qa )

Called when a new question attempt is added to this usage.

Parameters:

question_attempt $qa the newly added question attempt.

Implements question_usage_observer.

Definition at line 1062 of file datalib.php.

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notify_attempt_modified ( question_attempt $ qa )

Called when the fields of a question attempt in this usage are modified.

Parameters:

question_attempt $qa the newly added question attempt.

Implements question_usage_observer.

Definition at line 1055 of file datalib.php.

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notify_modified ( )

Called when a field of the question_usage_by_activity is changed.

Implements question_usage_observer.

Definition at line 1051 of file datalib.php.

notify_step_added	(	question_attempt_step $	step,
		question_attempt $	qa,
		$	seq
	)

Called when a new step is added to a question attempt in this usage.

Parameters:

question_attempt_step	$step	the new step.
question_attempt	$qa	the usage it is being added to.
int	$seq	the sequence number of the new step.

Implements question_usage_observer.

Definition at line 1066 of file datalib.php.

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notify_step_deleted	(	question_attempt_step $	step,
		question_attempt $	qa
	)

Called when a new step is updated in a question attempt in this usage.

Parameters:

question_attempt_step	$step	the step to delete.
question_attempt	$qa	the usage it is being added to.

Implements question_usage_observer.

Definition at line 1118 of file datalib.php.

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notify_step_modified	(	question_attempt_step $	step,
		question_attempt $	qa,
		$	seq
	)

Called when a new step is updated in a question attempt in this usage.

Parameters:

question_attempt_step	$step	the step that was updated.
question_attempt	$qa	the usage it is being added to.
int	$seq	the sequence number of the new step.

Implements question_usage_observer.

Definition at line 1097 of file datalib.php.

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save ( question_engine_data_mapper $ dm )

Write all the changes we have recorded to the database.

Parameters:

question_engine_data_mapper $dm the mapper to use to update the database.

Definition at line 1187 of file datalib.php.

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Field Documentation

$attemptsadded = array() [protected]

Definition at line 1023 of file datalib.php.

$attemptsmodified = array() [protected]

Definition at line 1017 of file datalib.php.

$modified = false [protected]

Definition at line 1011 of file datalib.php.

$quba [protected]

Definition at line 1008 of file datalib.php.

$stepsadded = array() [protected]

Definition at line 1029 of file datalib.php.

$stepsdeleted = array() [protected]

Definition at line 1041 of file datalib.php.

$stepsmodified = array() [protected]

Definition at line 1035 of file datalib.php.

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

C:/xampp/htdocs/moodle/question/engine/datalib.php

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Field Documentation