From b73e2b972a09c497f473c9844824ae84868ed77b Mon Sep 17 00:00:00 2001
From: Dan Marsden <dan@danmarsden.com>
Date: Mon, 26 Jun 2017 10:43:14 +1200
Subject: [PATCH] Add new capability to control who gets warning emails.

---
 classes/add_warning_form.php |  2 +-
 classes/task/notify.php      | 16 +++++++++++-----
 db/access.php                | 12 ++++++++++++
 lang/en/attendance.php       |  1 +
 version.php                  |  2 +-
 5 files changed, 26 insertions(+), 7 deletions(-)

diff --git a/classes/add_warning_form.php b/classes/add_warning_form.php
index a8682a2..f337ce8 100644
--- a/classes/add_warning_form.php
+++ b/classes/add_warning_form.php
@@ -75,7 +75,7 @@ class mod_attendance_add_warning_form extends moodleform {
         $mform->setType('emailcontent', PARAM_RAW);
         $mform->addHelpButton('emailcontent', 'emailcontent', 'mod_attendance');
 
-        $users = get_users_by_capability(context_course::instance($COURSE->id), 'mod/attendance:viewreports');
+        $users = get_users_by_capability(context_course::instance($COURSE->id), 'mod/attendance:warningemails');
         $options = array();
         foreach ($users as $user) {
             $options[$user->id] = fullname($user);
diff --git a/classes/task/notify.php b/classes/task/notify.php
index 01531b1..a5a8a3c 100644
--- a/classes/task/notify.php
+++ b/classes/task/notify.php
@@ -80,12 +80,18 @@ class notify extends \core\task\scheduled_task {
             if (!empty($record->thirdpartyemails)) {
                 $sendto = explode(',', $record->thirdpartyemails);
                 $record->percent = round($record->percent * 100)."%";
+                $context = context_module::instance($record->cmid);
                 foreach ($sendto as $senduser) {
-                    if (empty($thirdpartynotifications[$senduser])) {
-                        $thirdpartynotifications[$senduser] = array();
-                    }
-                    if (!isset($thirdpartynotifications[$senduser][$record->aid.'_'.$record->userid])) {
-                        $thirdpartynotifications[$senduser][$record->aid.'_'.$record->userid] = get_string('thirdpartyemailtext', 'attendance', $record);
+                    // Check user is allowed to receive warningemails.
+                    if (has_capability('mod/attendance:warningemails', $context, $senduser)) {
+                        if (empty($thirdpartynotifications[$senduser])) {
+                            $thirdpartynotifications[$senduser] = array();
+                        }
+                        if (!isset($thirdpartynotifications[$senduser][$record->aid . '_' . $record->userid])) {
+                            $thirdpartynotifications[$senduser][$record->aid . '_' . $record->userid] = get_string('thirdpartyemailtext', 'attendance', $record);
+                        }
+                    } else {
+                        mtrace("user".$senduser. "does not have capablity in cm".$record->cmid);
                     }
                 }
             }
diff --git a/db/access.php b/db/access.php
index 25a2bf0..22841ed 100644
--- a/db/access.php
+++ b/db/access.php
@@ -141,4 +141,16 @@ $capabilities = array(
             'manager' => CAP_ALLOW
         )
     ),
+    // Users that can receive extra warning e-mails.
+    'mod/attendance:warningemails' => array(
+        'riskbitmask' => RISK_DATALOSS,
+
+        'captype' => 'write',
+        'contextlevel' => CONTEXT_MODULE,
+        'archetypes' => array(
+            'teacher' => CAP_ALLOW,
+            'editingteacher' => CAP_ALLOW,
+            'manager' => CAP_ALLOW
+        )
+    )
 );
diff --git a/lang/en/attendance.php b/lang/en/attendance.php
index a69e975..a80554a 100644
--- a/lang/en/attendance.php
+++ b/lang/en/attendance.php
@@ -52,6 +52,7 @@ $string['attendance:takeattendances'] = 'Taking Attendances';
 $string['attendance:view'] = 'Viewing Attendances';
 $string['attendance:viewreports'] = 'Viewing Reports';
 $string['attendance:viewsummaryreports'] = 'View course summary reports';
+$string['attendance:warningemails'] = 'Can be subscribed to emails with at-risk users';
 $string['attendance_already_submitted'] = 'You may not self register attendance that has already been set.';
 $string['attendancedata'] = 'Attendance data';
 $string['attendanceforthecourse'] = 'Attendance for the course';
diff --git a/version.php b/version.php
index 629f535..e90db9b 100644
--- a/version.php
+++ b/version.php
@@ -23,7 +23,7 @@
  */
 defined('MOODLE_INTERNAL') || die();
 
-$plugin->version  = 2017062200;
+$plugin->version  = 2017062201;
 $plugin->requires = 2017042100;
 $plugin->release = '3.3.9';
 $plugin->maturity  = MATURITY_ALPHA;