qubaid_list Class Reference

Inheritance diagram for qubaid_list:

Collaboration diagram for qubaid_list:

Public Member Functions
	__construct (array $qubaids)
	from_question_attempts ($alias)
	where ()
	from_where_params ()
	usage_id_in ()
	usage_id_in_params ()
Protected Attributes
	$qubaids
	$columntotest = null
	$params

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Detailed Description

This class represents a restriction on the set of question_usage ids to include in a larger database query based on an explicit list of ids.

Copyright:

2010 The Open University http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

Definition at line 1363 of file datalib.php.

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Constructor & Destructor Documentation

__construct

(

array $

qubaids

)

Constructor.

Parameters:

array

$qubaids

of question usage ids.

Definition at line 1373 of file datalib.php.

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Member Function Documentation

from_question_attempts

(

$

alias

)

Returns:

string the SQL that needs to go in the FROM clause when trying to select records from the 'question_attempts' table based on the qubaid_condition.

Reimplemented from qubaid_condition.

Definition at line 1377 of file datalib.php.

from_where_params

(

)

Returns:

the params needed by a query that uses from_question_attempts() and where().

Reimplemented from qubaid_condition.

Definition at line 1396 of file datalib.php.

usage_id_in

(

)

Returns:

string SQL that can use used in a WHERE qubaid IN (...) query. This method returns the "IN (...)" part.

Reimplemented from qubaid_condition.

Definition at line 1400 of file datalib.php.

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usage_id_in_params

(

)

Returns:

the params needed by a query that uses usage_id_in().

Reimplemented from qubaid_condition.

Definition at line 1412 of file datalib.php.

where

(

)

Returns:

string the SQL that needs to go in the where clause.

Reimplemented from qubaid_condition.

Definition at line 1382 of file datalib.php.

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Field Documentation

$columntotest = null [protected]

Definition at line 1366 of file datalib.php.

$params [protected]

Definition at line 1367 of file datalib.php.

$qubaids [protected]

Definition at line 1365 of file datalib.php.

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

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