question_attempt_steps_with_submitted_response_iterator Class Reference

A variant of question_attempt_step_iterator that iterates through the steps with submitted tries. More...

Inheritance diagram for question_attempt_steps_with_submitted_response_iterator:

Public Member Functions
	__construct (question_attempt $qa)
	Do not call this constructor directly. More...
	count ()
	current ()
	key ()
	next ()
	offsetExists ($submittedresponseno)
	offsetGet ($submittedresponseno)
	offsetSet ($offset, $value)
	offsetUnset ($offset)
	rewind ()
	step_no_for_try ($submittedresponseno)
	valid ()

Protected Member Functions
	find_steps_with_submitted_response ()
	Find the step nos in which a student has submitted a response. More...

Protected Attributes
integer	$i
	records the current position in the iteration.
question_attempt	$qa
	the question_attempt being iterated over.
int[]	$stepswithsubmittedresponses
	Index is the submitted response number and value is the step no.
integer	$submittedresponseno
	records the current position in the iteration.

Detailed Description

A variant of question_attempt_step_iterator that iterates through the steps with submitted tries.

Copyright

2014 The Open University

License

http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

Constructor & Destructor Documentation

__construct()

question_attempt_steps_with_submitted_response_iterator::__construct

(

question_attempt

$qa

)

Do not call this constructor directly.

Use question_attempt::get_submission_step_iterator().

Parameters

question_attempt

$qa

the attempt to iterate over.

Reimplemented from question_attempt_step_iterator.

Member Function Documentation

count()

question_attempt_steps_with_submitted_response_iterator::count

(

)

Return values

int	the count of steps with tries.

current()

question_attempt_steps_with_submitted_response_iterator::current

(

)

Return values

question_attempt_step

Reimplemented from question_attempt_step_iterator.

find_steps_with_submitted_response()

question_attempt_steps_with_submitted_response_iterator::find_steps_with_submitted_response ( )

protected

Find the step nos in which a student has submitted a response.

Including any step with a response that is saved before the question attempt finishes.

Called from constructor, should not be called from elsewhere.

key()

question_attempt_steps_with_submitted_response_iterator::key

(

)

Return values

int

Reimplemented from question_attempt_step_iterator.

offsetExists()

question_attempt_steps_with_submitted_response_iterator::offsetExists

(

$submittedresponseno

)

Parameters

int

$submittedresponseno

Return values

bool

Reimplemented from question_attempt_step_iterator.

offsetGet()

question_attempt_steps_with_submitted_response_iterator::offsetGet

(

$submittedresponseno

)

Parameters

int

$submittedresponseno

Return values

question_attempt_step

Reimplemented from question_attempt_step_iterator.

step_no_for_try()

question_attempt_steps_with_submitted_response_iterator::step_no_for_try

(

$submittedresponseno

)

Parameters

int

$submittedresponseno

Exceptions

coding_exception

Return values

int|null

the step number or null if there is no such submitted response.

valid()

question_attempt_steps_with_submitted_response_iterator::valid

(

)

Return values

bool

Reimplemented from question_attempt_step_iterator.

---

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

• question/engine/questionattempt.php