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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Course completion criteria
*
* @package core_completion
* @category completion
* @copyright 2009 Catalyst IT Ltd
* @author Aaron Barnes <aaronb@catalyst.net.nz>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
require_once($CFG->dirroot.'/completion/data_object.php');
require_once($CFG->dirroot.'/completion/completion_criteria_completion.php');
/**
* Self completion criteria type
* Criteria type constant, primarily for storing criteria type in the database.
*/
define('COMPLETION_CRITERIA_TYPE_SELF', 1);
/**
* Date completion criteria type
* Criteria type constant, primarily for storing criteria type in the database.
*/
define('COMPLETION_CRITERIA_TYPE_DATE', 2);
/**
* Unenrol completion criteria type
* Criteria type constant, primarily for storing criteria type in the database.
*/
define('COMPLETION_CRITERIA_TYPE_UNENROL', 3);
/**
* Activity completion criteria type
* Criteria type constant, primarily for storing criteria type in the database.
*/
define('COMPLETION_CRITERIA_TYPE_ACTIVITY', 4);
/**
* Duration completion criteria type
* Criteria type constant, primarily for storing criteria type in the database.
*/
define('COMPLETION_CRITERIA_TYPE_DURATION', 5);
/**
* Grade completion criteria type
* Criteria type constant, primarily for storing criteria type in the database.
*/
define('COMPLETION_CRITERIA_TYPE_GRADE', 6);
/**
* Role completion criteria type
* Criteria type constant, primarily for storing criteria type in the database.
*/
define('COMPLETION_CRITERIA_TYPE_ROLE', 7);
/**
* Course completion criteria type
* Criteria type constant, primarily for storing criteria type in the database.
*/
define('COMPLETION_CRITERIA_TYPE_COURSE', 8);
/**
* Criteria type constant to class name mapping.
*
* This global variable would be improved if it was implemented as a cache.
*/
global $COMPLETION_CRITERIA_TYPES;
$COMPLETION_CRITERIA_TYPES = array(
COMPLETION_CRITERIA_TYPE_SELF => 'self',
COMPLETION_CRITERIA_TYPE_DATE => 'date',
COMPLETION_CRITERIA_TYPE_UNENROL => 'unenrol',
COMPLETION_CRITERIA_TYPE_ACTIVITY => 'activity',
COMPLETION_CRITERIA_TYPE_DURATION => 'duration',
COMPLETION_CRITERIA_TYPE_GRADE => 'grade',
COMPLETION_CRITERIA_TYPE_ROLE => 'role',
COMPLETION_CRITERIA_TYPE_COURSE => 'course',
);
/**
* Completion criteria abstract definition
*
* @package core_completion
* @category completion
* @copyright 2009 Catalyst IT Ltd
* @author Aaron Barnes <aaronb@catalyst.net.nz>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
abstract class completion_criteria extends data_object {
/* @var string Database table name that stores completion criteria information */
public $table = 'course_completion_criteria';
/**
* Array of required table fields, must start with 'id'.
* Defaults to id, course, criteriatype, module, moduleinstane, courseinstance,
* enrolperiod, timeend, gradepass, role
* @var array
*/
public $required_fields = array('id', 'course', 'criteriatype', 'module', 'moduleinstance', 'courseinstance', 'enrolperiod', 'timeend', 'gradepass', 'role');
/* @var int Course id */
public $course;
/**
* Criteria type
* One of the COMPLETION_CRITERIA_TYPE_* constants
* @var int
*/
public $criteriatype;
/* @var string Module type this criteria relates to (for activity criteria) */
public $module;
/* @var int Course module instance id this criteria relates to (for activity criteria) */
public $moduleinstance;
/**
* Period after enrolment completion will be triggered (for period criteria)
* The value here is the number of days as an int.
* @var int
*/
public $enrolperiod;
/**
* Date of course completion (for date criteria)
* This is a timestamp value
* @var int
*/
public $date;
/* @var float Passing grade required to complete course (for grade completion) */
public $gradepass;
/* @var int Role ID that has the ability to mark a user as complete (for role completion) */
public $role;
/**
* Finds and returns all data_object instances based on params.
*
* @param array $params associative arrays varname=>value
* @return array array of data_object insatnces or false if none found.
*/
public static function fetch_all($params) {}
/**
* Factory method for creating correct class object
*
* @param array $params associative arrays varname=>value
* @return completion_criteria
*/
public static function factory($params) {
global $CFG, $COMPLETION_CRITERIA_TYPES;
if (!isset($params['criteriatype']) || !isset($COMPLETION_CRITERIA_TYPES[$params['criteriatype']])) {
print_error('invalidcriteriatype', 'completion');
}
$class = 'completion_criteria_'.$COMPLETION_CRITERIA_TYPES[$params['criteriatype']];
require_once($CFG->dirroot.'/completion/criteria/'.$class.'.php');
return new $class($params, false);
}
/**
* Add appropriate form elements to the critieria form
*
* @param moodleform $mform Moodle forms object
* @param mixed $data optional Any additional data that can be used to set default values in the form
* @return void
*/
abstract public function config_form_display(&$mform, $data = null);
/**
* Update the criteria information stored in the database
*
* @param array $data Form data
* @return void
*/
abstract public function update_config(&$data);
/**
* Review this criteria and decide if the user has completed
*
* @param object $completion The user's completion record
* @param boolean $mark Optionally set false to not save changes to database
* @return boolean
*/
abstract public function review($completion, $mark = true);
/**
* Return criteria title for display in reports
*
* @return string
*/
abstract public function get_title();
/**
* Return a more detailed criteria title for display in reports
*
* @return string
*/
abstract public function get_title_detailed();
/**
* Return criteria type title for display in reports
*
* @return string
*/
abstract public function get_type_title();
/**
* Return criteria progress details for display in reports
*
* @param completion_completion $completion The user's completion record
* @return array
*/
abstract public function get_details($completion);
/**
* Return pix_icon for display in reports.
*
* @param string $alt The alt text to use for the icon
* @param array $attributes html attributes
* @return pix_icon
*/
public function get_icon($alt, array $attributes = null) {
global $COMPLETION_CRITERIA_TYPES;
$criteriatype = $COMPLETION_CRITERIA_TYPES[$this->criteriatype];
return new pix_icon('i/'.$criteriatype, $alt, 'moodle', $attributes);
}
/**
* Return criteria status text for display in reports
*
* @param completion_completion $completion The user's completion record
* @return string
*/
public function get_status($completion) {
return $completion->is_complete() ? get_string('yes') : get_string('no');
}
/**
* Return true if the criteria's current status is different to what is sorted
* in the database, e.g. pending an update
*
* @param completion_completion $completion The user's criteria completion record
* @return bool
*/
public function is_pending($completion) {
$review = $this->review($completion, false);
return $review !== $completion->is_complete();
}
}