Add teacher notification setting (sendmailtoteacher) per instance.

edit.php

@@ -55,6 +55,7 @@ if ($mform->is_cancelled()) {
         $instance->customtext1    = $data->customtext1;
         $instance->customint1    = $data->customint1;
         $instance->customint2    = $data->customint2;
+        $instance->customint3    = $data->customint3;
         $instance->roleid         = $data->roleid;
         $instance->timemodified   = time();
         $DB->update_record('enrol', $instance);
@@ -64,6 +65,7 @@ if ($mform->is_cancelled()) {
             'status'          =>$data->status,
             'name'            =>$data->name,
             'roleid'          =>$data->roleid,
+            'customint3'      =>$data->customint3,
             'customtext1'     =>$data->customtext1);
         $plugin->add_instance($course, $fields);
     }

edit_form.php

@@ -48,6 +48,8 @@ class enrol_self_edit_form extends moodleform {
         $mform->addElement('select', 'customint2', get_string('show_extra_user_profile', 'enrol_apply'), $options);
         $mform->setDefault('customint2', $plugin->get_config('customint2'));
 
+        $mform->addElement('advcheckbox', 'customint3', get_string('sendmailtoteacher', 'enrol_apply'));
+
         $mform->addElement('hidden', 'id');
         $mform->setType('id', PARAM_INT);
         $mform->addElement('hidden', 'courseid');

lib.php

@@ -375,7 +375,7 @@ function sendConfirmMailToTeachers($instance,$info,$applydescription){
 		($apply_setting['show_extra_user_profile']->value == 0)?$show_extra_user_profile = true:$show_extra_user_profile = false;
 	}
 	
-	if($apply_setting['sendmailtoteacher']->value == 1){
+	if($instance->customint3 == 1){
 		$course = get_course($courseid);
 		$context =  context_course::instance($courseid, MUST_EXIST);
 		$teacherType = $DB->get_record('role',array("shortname"=>"editingteacher"));