moodle1_qtype_handler Class Reference

Base class for all question type handlers. More...

Inheritance diagram for moodle1_qtype_handler:

Public Member Functions
	__construct (moodle1_question_bank_handler $qbankhandler, $qtype)
	implementation details follow //////////////////////////////////////////
	get_component_name ()
	Returns the normalized name of the plugin, eg mod_workshop.
	get_converter ()
	get_paths ()
	get_question_subpaths ()
	Returns the list of paths within one <QUESTION> that this qtype needs to have included in the grouped question structure.
	log ($message, $level, $a=null, $depth=null, $display=false)
	This function will be responsible for handling the params, and to call to the corresponding logger->process() once all modifications in params have been performed.
	process_question (array $data, array $raw)
	Gives the qtype handler a chance to write converted data into questions.xml.
	use_xml_writer (xml_writer $xmlwriter)
	Provides a xml_writer instance to this qtype converter.

Protected Member Functions
	close_xml_writer ()
	Question type handlers cannot close the xml_writer.
	get_default_numerical_options ($oldquestiontextformat, $units)
	Returns default numerical_option structure.
	has_xml_writer ()
	Checks if the XML writer has been opened by self::open_xml_writer().
	make_sure_xml_exists ($filename, $rootelement=false, $content=array())
	Makes sure that a new XML file exists, or creates it itself.
	migrate_files ($text, $component, $filearea, $itemid)
	Migrate files belonging to one qtype plugin text field.
	open_xml_writer ($filename)
	Question type handlers cannot open the xml_writer.
	write_answers (array $answers, $qtype)
	Converts the answers and writes them into the questions.xml.
	write_dataset_definitions (array $datasetdefinitions)
	Writes the dataset_definitions structure.
	write_numerical_options (array $numericaloption)
	Writes the numerical_options structure.
	write_numerical_units (array $numericalunits)
	Writes the grouped numerical_units structure.
	write_xml ($element, array $data, array $attribs=array(), $parent='/')
	Writes the given XML tree data into the currently opened file.

Protected Attributes
moodle1_converter	$converter
string	$pluginname
string	$plugintype
moodle1_question_bank_handler	$qbankhandler
null string	$xmlfilename
	the name of file we are writing to
null xml_writer	$xmlwriter

Detailed Description

Base class for all question type handlers.

Member Function Documentation

close_xml_writer()

moodle1_qtype_handler::close_xml_writer ( )

finalprotected

Question type handlers cannot close the xml_writer.

Reimplemented from moodle1_xml_handler.

get_component_name()

moodle1_plugin_handler::get_component_name ( )

inherited

Returns the normalized name of the plugin, eg mod_workshop.

Return values

string

get_converter()

moodle1_handler::get_converter ( )

inherited

Return values

moodle1_converter

the converter that required this handler

get_default_numerical_options()

moodle1_qtype_handler::get_default_numerical_options ( $oldquestiontextformat, $units )

protected

Returns default numerical_option structure.

This structure is not present in moodle.xml, we create a new artificial one here.

See also

write_numerical_options()

Parameters

int

$oldquestiontextformat

Return values

array

get_paths()

moodle1_qtype_handler::get_paths ( )

final

See also

self\get_question_subpaths()

get_question_subpaths()

moodle1_qtype_handler::get_question_subpaths

(

)

Returns the list of paths within one <QUESTION> that this qtype needs to have included in the grouped question structure.

Return values

array

of strings

Reimplemented in moodle1_qtype_calculated_handler, moodle1_qtype_essay_handler, moodle1_qtype_match_handler, moodle1_qtype_multianswer_handler, moodle1_qtype_multichoice_handler, moodle1_qtype_numerical_handler, moodle1_qtype_randomsamatch_handler, moodle1_qtype_shortanswer_handler, and moodle1_qtype_truefalse_handler.

has_xml_writer()

moodle1_xml_handler::has_xml_writer ( )

protectedinherited

Checks if the XML writer has been opened by self::open_xml_writer().

Return values

bool

log()

moodle1_handler::log ( $message, $level, $a = null, $depth = null, $display = false )

inherited

This function will be responsible for handling the params, and to call to the corresponding logger->process() once all modifications in params have been performed.

Implements loggable.

make_sure_xml_exists()

moodle1_xml_handler::make_sure_xml_exists ( $filename, $rootelement = false, $content = array() )

protectedinherited

Makes sure that a new XML file exists, or creates it itself.

This is here so we can check that all XML files that the restore process relies on have been created by an executed handler. If the file is not found, this method can create it using the given $rootelement as an empty root container in the file.

Parameters

string	$filename	relative file name like 'course/course.xml'
string | bool	$rootelement	root element to use, false to not create the file
array	$content	content of the root element

Return values

bool	true is the file existed, false if it did not

migrate_files()

moodle1_qtype_handler::migrate_files ( $text, $component, $filearea, $itemid )

protected

Migrate files belonging to one qtype plugin text field.

Parameters

array	$text	the html fragment containing references to files
string	$component	the component for restored files
string	$filearea	the file area for restored files
int	$itemid	the itemid for restored files

Return values

string

the text for this field, after files references have been processed

open_xml_writer()

moodle1_qtype_handler::open_xml_writer ( $filename )

finalprotected

Question type handlers cannot open the xml_writer.

Reimplemented from moodle1_xml_handler.

process_question()

moodle1_qtype_handler::process_question	(	array	$data,
		array	$raw )

Gives the qtype handler a chance to write converted data into questions.xml.

Parameters

array	$data	grouped question data
array	$raw	grouped raw QUESTION data

Reimplemented in moodle1_qtype_calculated_handler, moodle1_qtype_essay_handler, moodle1_qtype_match_handler, moodle1_qtype_multianswer_handler, moodle1_qtype_multichoice_handler, moodle1_qtype_numerical_handler, moodle1_qtype_randomsamatch_handler, moodle1_qtype_shortanswer_handler, and moodle1_qtype_truefalse_handler.

use_xml_writer()

moodle1_qtype_handler::use_xml_writer

(

xml_writer

$xmlwriter

)

Provides a xml_writer instance to this qtype converter.

Parameters

xml_writer

$xmlwriter

write_answers()

moodle1_qtype_handler::write_answers ( array $answers, $qtype )

protected

Converts the answers and writes them into the questions.xml.

The structure "answers" is used by several qtypes. It contains data from {question_answers} table.

Parameters

array	$answers	as parsed by the grouped parser in moodle.xml
string	$qtype	containing the answers

write_dataset_definitions()

moodle1_qtype_handler::write_dataset_definitions ( array $datasetdefinitions )

protected

Writes the dataset_definitions structure.

Parameters

array

$datasetdefinitions

array of dataset_definition structures

write_numerical_options()

moodle1_qtype_handler::write_numerical_options ( array $numericaloption )

protected

Writes the numerical_options structure.

See also

get_default_numerical_options()

Parameters

array

$numericaloption

write_numerical_units()

moodle1_qtype_handler::write_numerical_units ( array $numericalunits )

protected

Writes the grouped numerical_units structure.

Parameters

array

$numericalunits

write_xml()

moodle1_xml_handler::write_xml ( $element, array $data, array $attribs = array(), $parent = '/' )

protectedinherited

Writes the given XML tree data into the currently opened file.

Parameters

string	$element	the name of the root element of the tree
array	$data	the associative array of data to write
array	$attribs	list of additional fields written as attributes instead of nested elements
string	$parent	used internally during the recursion, do not set yourself

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

• backup/converter/moodle1/handlerlib.php