MDL-69559 admin: Add course download admin settings and lang strings

admin/settings/courses.php

@@ -22,6 +22,8 @@
  * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
+use core_admin\local\settings\filesize;
+
 $capabilities = array(
     'moodle/backup:backupcourse',
     'moodle/category:manage',
@@ -75,6 +77,17 @@
     $temp->add(new admin_setting_configselect('moodlecourse/visible', new lang_string('visible'), new lang_string('visible_help'),
         1, $choices));
 
+    // Enable/disable download course content.
+    $choices = [
+        DOWNLOAD_COURSE_CONTENT_DISABLED => new lang_string('no'),
+        DOWNLOAD_COURSE_CONTENT_ENABLED => new lang_string('yes'),
+    ];
+    $downloadcontentsitedefault = new admin_setting_configselect('moodlecourse/downloadcontentsitedefault',
+            new lang_string('enabledownloadcoursecontent', 'course'),
+            new lang_string('downloadcoursecontent_help', 'course'), 0, $choices);
+    $downloadcontentsitedefault->add_dependent_on('downloadcoursecontentallowed');
+    $temp->add($downloadcontentsitedefault);
+
     // Course format.
     $temp->add(new admin_setting_heading('courseformathdr', new lang_string('type_format', 'plugin'), ''));
 
@@ -161,6 +174,21 @@
 
     $ADMIN->add('courses', $temp);
 
+    // Download course content.
+    $downloadcoursedefaulturl = new moodle_url('/admin/settings.php', ['section' => 'coursesettings']);
+    $temp = new admin_settingpage('downloadcoursecontent', new lang_string('downloadcoursecontent', 'course'));
+    $temp->add(new admin_setting_configcheckbox('downloadcoursecontentallowed',
+            new lang_string('downloadcoursecontentallowed', 'admin'),
+            new lang_string('downloadcoursecontentallowed_desc', 'admin', $downloadcoursedefaulturl->out()), 0));
+
+    // 50MB default maximum size per file when downloading course content.
+    $defaultmaxdownloadsize = 50 * filesize::UNIT_MB;
+    $temp->add(new filesize('maxsizeperdownloadcoursefile', new lang_string('maxsizeperdownloadcoursefile', 'admin'),
+            new lang_string('maxsizeperdownloadcoursefile_desc', 'admin'), $defaultmaxdownloadsize, filesize::UNIT_MB));
+    $temp->hide_if('maxsizeperdownloadcoursefile', 'downloadcoursecontentallowed');
+
+    $ADMIN->add('courses', $temp);
+
     // "courserequests" settingpage.
     $temp = new admin_settingpage('courserequest', new lang_string('courserequest'));
     $temp->add(new admin_setting_configcheckbox('enablecourserequests',

course/lib.php

@@ -71,6 +71,11 @@
 // Course activity chooser footer default display option.
 define('COURSE_CHOOSER_FOOTER_NONE', 'hidden');
 
+// Download course content options.
+define('DOWNLOAD_COURSE_CONTENT_DISABLED', 0);
+define('DOWNLOAD_COURSE_CONTENT_ENABLED', 1);
+define('DOWNLOAD_COURSE_CONTENT_SITE_DEFAULT', 2);
+
 function make_log_url($module, $url) {
     switch ($module) {
         case 'course':

lang/en/admin.php

@@ -516,6 +516,8 @@
 $string['doesnotfit'] = 'Email display settings';
 $string['doesnotfitdetail'] = 'Display settings for email leaving Moodle.';
 $string['download'] = 'Download';
+$string['downloadcoursecontentallowed'] = 'Download course content feature available';
+$string['downloadcoursecontentallowed_desc'] = 'Whether the download course content feature is available to courses. When available, course content downloads can be enabled/disabled using the "Enable download course content" setting within the course edit menu (the default for this can be set in <a href={$a} target="_blank">Course default settings</a>).';
 $string['durationunits'] = 'duration units';
 $string['edithelpdocs'] = 'Edit help documents';
 $string['editlang'] = '<b>Edit</b>';
@@ -802,6 +804,8 @@
 from a STABLE branch of the Moodle code. See Moodle Docs for more details.';
 $string['maxbytes'] = 'Maximum uploaded file size';
 $string['maxconsecutiveidentchars'] = 'Consecutive identical characters';
+$string['maxsizeperdownloadcoursefile'] = 'Maximum size per file';
+$string['maxsizeperdownloadcoursefile_desc'] = 'The maximum size of each file when downloading course content. Files exceeding this size will be omitted from the download.';
 $string['maxeditingtime'] = 'Maximum time to edit posts';
 $string['maxusersperpage'] = ' Maximum users per page';
 $string['configmaxusersperpage'] = 'Maximum number of users displayed within user selector in course, group, cohort, webservice etc.';

lang/en/course.php

@@ -54,6 +54,9 @@
 $string['customfield_visibletoall'] = 'Everyone';
 $string['customfield_visibletoteachers'] = 'Teachers';
 $string['customfieldsettings'] = 'Common course custom fields settings';
+$string['downloadcoursecontent'] = 'Download course content';
+$string['downloadcoursecontent_help'] = 'This setting determines whether course content may be downloaded by users with the download course content capability (by default users with the role of student or teacher).';
+$string['enabledownloadcoursecontent'] = 'Enable download course content';
 $string['errorendbeforestart'] = 'The end date ({$a}) is before the course start date.';
 $string['favourite'] = 'Starred course';
 $string['gradetopassnotset'] = 'This course does not have a grade to pass set. It may be set in the grade item of the course (Gradebook setup).';