report/stats/lib.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  * This file contains functions used by the log reports
  19  *
  20  * This file is also required by /admin/reports/stats/index.php.
  21  *
  22  * @package    report
  23  * @subpackage stats
  24  * @copyright  1999 onwards Martin Dougiamas (http://dougiamas.com)
  25  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  26  */
  27
  28 defined('MOODLE_INTERNAL') || die;
  29
  30 /**
  31  * This function extends the navigation with the report items
  32  *
  33  * @param navigation_node $navigation The navigation node to extend
  34  * @param stdClass $course The course to object for the report
  35  * @param stdClass $context The context of the course
  36  */
  37 function report_stats_extend_navigation_course($navigation, $course, $context) {
  38     global $CFG;
  39     if (empty($CFG->enablestats)) {
  40         return;
  41     }
  42     if (has_capability('report/stats:view', $context)) {
  43         $url = new moodle_url('/report/stats/index.php', array('course'=>$course->id));
  44         $navigation->add(get_string('pluginname', 'report_stats'), $url, navigation_node::TYPE_SETTING, null, null, new pix_icon('i/report', ''));
  45     }
  46 }
  47
  48 /**
  49  * This function extends the course navigation with the report items
  50  *
  51  * @param navigation_node $navigation The navigation node to extend
  52  * @param stdClass $user
  53  * @param stdClass $course The course to object for the report
  54  */
  55 function report_stats_extend_navigation_user($navigation, $user, $course) {
  56     global $CFG;
  57     if (empty($CFG->enablestats)) {
  58         return;
  59     }
  60     if (report_stats_can_access_user_report($user, $course)) {
  61         $url = new moodle_url('/report/stats/user.php', array('id'=>$user->id, 'course'=>$course->id));
  62         $navigation->add(get_string('stats'), $url);
  63     }
  64 }
  65
  66 /**
  67  * Is current user allowed to access this report
  68  *
  69  * @private defined in lib.php for performance reasons
  70  *
  71  * @param stdClass $user
  72  * @param stdClass $course
  73  * @return bool
  74  */
  75 function report_stats_can_access_user_report($user, $course) {
  76     global $USER;
  77
  78     $coursecontext = context_course::instance($course->id);
  79     $personalcontext = context_user::instance($user->id);
  80
  81     if ($user->id == $USER->id) {
  82         if ($course->showreports and (is_viewing($coursecontext, $USER) or is_enrolled($coursecontext, $USER))) {
  83             return true;
  84         }
  85     } else if (has_capability('moodle/user:viewuseractivitiesreport', $personalcontext)) {
  86         if ($course->showreports and (is_viewing($coursecontext, $user) or is_enrolled($coursecontext, $user))) {
  87             return true;
  88         }
  89     }
  90
  91     // Check if $USER shares group with $user (in case separated groups are enabled and 'moodle/site:accessallgroups' is disabled).
  92     if (!groups_user_groups_visible($course, $user->id)) {
  93         return false;
  94     }
  95
  96     if (has_capability('report/stats:view', $coursecontext)) {
  97         return true;
  98     }
  99
 100     return false;
 101 }
 102
 103 /**
 104  * Return a list of page types
 105  * @param string $pagetype current page type
 106  * @param stdClass $parentcontext Block's parent context
 107  * @param stdClass $currentcontext Current context of block
 108  * @return array
 109  */
 110 function report_stats_page_type_list($pagetype, $parentcontext, $currentcontext) {
 111     $array = array(
 112         '*'                  => get_string('page-x', 'pagetype'),
 113         'report-*'           => get_string('page-report-x', 'pagetype'),
 114         'report-stats-*'     => get_string('page-report-stats-x',  'report_stats'),
 115         'report-stats-index' => get_string('page-report-stats-index',  'report_stats'),
 116         'report-stats-user'  => get_string('page-report-stats-user',  'report_stats')
 117     );
 118     return $array;
 119 }
 120
 121 /**
 122  * Callback to verify if the given instance of store is supported by this report or not.
 123  *
 124  * @param string $instance store instance.
 125  *
 126  * @return bool returns true if the store is supported by the report, false otherwise.
 127  */
 128 function report_stats_supports_logstore($instance) {
 129     if ($instance instanceof \core\log\sql_internal_table_reader) {
 130         return true;
 131     }
 132     return false;
 133 }
 134
 135 /**
 136  * Add nodes to myprofile page.
 137  *
 138  * @param \core_user\output\myprofile\tree $tree Tree object
 139  * @param stdClass $user user object
 140  * @param bool $iscurrentuser
 141  * @param stdClass $course Course object
 142  * @return bool
 143  */
 144 function report_stats_myprofile_navigation(core_user\output\myprofile\tree $tree, $user, $iscurrentuser, $course) {
 145     global $CFG;
 146     if (empty($CFG->enablestats)) {
 147         return false;
 148     }
 149     if (empty($course)) {
 150         // We want to display these reports under the site context.
 151         $course = get_fast_modinfo(SITEID)->get_course();
 152     }
 153     if (report_stats_can_access_user_report($user, $course)) {
 154         $url = new moodle_url('/report/stats/user.php', array('id' => $user->id, 'course' => $course->id));
 155         $node = new core_user\output\myprofile\node('reports', 'stats', get_string('stats'), null, $url);
 156         $tree->add_node($node);
 157     }
 158 }