add keeplocalcopy setting element to forms

Author: HobieCat

mod_form.php

@@ -66,6 +66,13 @@ public function definition() {
         $mform->addElement('select', 'deliveryoption', get_string('deliveryoptions', 'customcert'), $deliveryoptions);
         $mform->setDefault('deliveryoption', certificate::DELIVERY_OPTION_INLINE);
 
+        if (has_capability('mod/customcert:managekeeplocalcopy', $this->get_context())) {
+            $mform->addElement('selectyesno', 'keeplocalcopy', get_string('keeplocalcopy', 'customcert'));
+            $mform->setDefault('keeplocalcopy', get_config('customcert', 'keeplocalcopy'));
+            $mform->addHelpButton('keeplocalcopy', 'keeplocalcopy', 'customcert');
+            $mform->setType('keeplocalcopy', PARAM_INT);
+        }
+
         if (has_capability('mod/customcert:manageemailstudents', $this->get_context())) {
             $mform->addElement('selectyesno', 'emailstudents', get_string('emailstudents', 'customcert'));
             $mform->setDefault('emailstudents', get_config('customcert', 'emailstudents'));
@@ -207,6 +214,7 @@ public function validation($data, $files) {
      */
     protected function get_options_elements_with_required_caps() {
         return [
+            'keeplocalcopy' => 'mod/customcert:managekeeplocalcopy',
             'emailstudents' => 'mod/customcert:manageemailstudents',
             'emailteachers' => 'mod/customcert:manageemailteachers',
             'emailothers' => 'mod/customcert:manageemailothers',

settings.php

@@ -59,6 +59,8 @@
     1 => get_string('yes'),
 ];
 
+$settings->add(new admin_setting_configselect('customcert/keeplocalcopy',
+    get_string('keeplocalcopy', 'customcert'), get_string('keeplocalcopy_help', 'customcert'), 0, $yesnooptions));
 $settings->add(new admin_setting_configselect('customcert/emailstudents',
     get_string('emailstudents', 'customcert'), get_string('emailstudents_help', 'customcert'), 0, $yesnooptions));
 $settings->add(new admin_setting_configselect('customcert/emailteachers',