completion/completion_criteria_completion.php

   1 <?php
   2 // This file is part of Moodle - http://moodle.org/
   3 //
   4 // Moodle is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU General Public License as published by
   6 // the Free Software Foundation, either version 3 of the License, or
   7 // (at your option) any later version.
   8 //
   9 // Moodle is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU General Public License
  15 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 /**
  18  * Completion data for a specific user, course and critieria
  19  *
  20  * @package core_completion
  21  * @category completion
  22  * @copyright 2009 Catalyst IT Ltd
  23  * @author Aaron Barnes <aaronb@catalyst.net.nz>
  24  * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  25  */
  26
  27 defined('MOODLE_INTERNAL') || die();
  28 require_once($CFG->dirroot.'/completion/data_object.php');
  29
  30 /**
  31  * Completion data for a specific user, course and critieria
  32  *
  33  * @package core_completion
  34  * @category completion
  35  * @copyright 2009 Catalyst IT Ltd
  36  * @author Aaron Barnes <aaronb@catalyst.net.nz>
  37  * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  38  */
  39 class completion_criteria_completion extends data_object {
  40
  41     /* @var string Database table that stores completion type criteria */
  42     public $table = 'course_completion_crit_compl';
  43
  44     /* @var array Array of required table fields, must start with 'id'. */
  45     public $required_fields = array('id', 'userid', 'course', 'criteriaid', 'gradefinal', 'rpl', 'unenroled', 'timecompleted');
  46
  47     /* @var array Array of unique fields, used in where clauses */
  48     public $unique_fields = array('userid', 'course', 'criteriaid');
  49
  50     /* @var int User ID */
  51     public $userid;
  52
  53     /* @var int course ID */
  54     public $course;
  55
  56     /* @var int The id of the course completion criteria this completion references */
  57     public $criteriaid;
  58
  59     /* @var float The final grade for the user in the course (if completing a grade criteria) */
  60     public $gradefinal;
  61
  62     /* @var string Record of prior learning, leave blank if none */
  63     public $rpl;
  64
  65     /* @var int Timestamp of user unenrolment (if completing a unenrol criteria) */
  66     public $unenroled;
  67
  68     /* @var int Timestamp of course criteria completion {@link completion_criteria_completion::mark_complete()} */
  69     public $timecompleted;
  70
  71     /* @var completion_criterria Associated criteria object */
  72     private $_criteria;
  73
  74     /**
  75      * Finds and returns a data_object instance based on params.
  76      *
  77      * @param array $params associative arrays varname=>value
  78      * @return data_object instance of data_object or false if none found.
  79      */
  80     public static function fetch($params) {
  81         return self::fetch_helper('course_completion_crit_compl', __CLASS__, $params);
  82     }
  83
  84     /**
  85      * Finds and returns all data_object instances based on params.
  86      *
  87      * @param array $params associative arrays varname=>value
  88      * @return array array of data_object insatnces or false if none found.
  89      */
  90     public static function fetch_all($params) {}
  91
  92     /**
  93      * Return status of this criteria completion
  94      *
  95      * @return bool
  96      */
  97     public function is_complete() {
  98         return (bool) $this->timecompleted;
  99     }
 100
 101     /**
 102      * Mark this criteria complete for the associated user
 103      *
 104      * This method creates a course_completion_crit_compl record
 105      *
 106      * @param int $timecompleted Time completed (optional)
 107      * @return void
 108      */
 109     public function mark_complete($timecompleted = null) {
 110         if (empty($timecompleted)) {
 111             $timecompleted = time();
 112         }
 113         // Create record
 114         $this->timecompleted = $timecompleted;
 115
 116         // Save record
 117         if ($this->id) {
 118             $this->update();
 119         } else {
 120             $this->insert();
 121         }
 122
 123         // Mark course completion record as started (if not already)
 124         $cc = array(
 125             'course'    => $this->course,
 126             'userid'    => $this->userid
 127         );
 128         $ccompletion = new completion_completion($cc);
 129         $ccompletion->mark_inprogress($this->timecompleted);
 130     }
 131
 132     /**
 133      * Attach a preloaded criteria object to this object
 134      *
 135      * @param   $criteria   object  completion_criteria
 136      */
 137     public function attach_criteria(completion_criteria $criteria) {
 138         $this->_criteria = $criteria;
 139     }
 140
 141     /**
 142      * Return the associated criteria with this completion
 143      * If nothing attached, load from the db
 144      *
 145      * @return completion_criteria
 146      */
 147     public function get_criteria() {
 148
 149         if (!$this->_criteria) {
 150             global $DB;
 151
 152             $params = array(
 153                 'id'    => $this->criteriaid
 154             );
 155
 156             $record = $DB->get_record('course_completion_criteria', $params);
 157
 158             $this->attach_criteria(completion_criteria::factory((array) $record));
 159         }
 160
 161         return $this->_criteria;
 162     }
 163
 164     /**
 165      * Return criteria status text for display in reports {@link completion_criteria::get_status()}
 166      *
 167      * @return string
 168      */
 169     public function get_status() {
 170         return $this->_criteria->get_status($this);
 171     }
 172 }