MDL-40048 events: New abstract event for old 'view all' log

diff --git a/lib/classes/event/course_module_instances_list_viewed.php b/lib/classes/event/course_module_instances_list_viewed.php
new file mode 100644 (file)
index 0000000..b1b6db3
--- /dev/null
+++ b/lib/classes/event/course_module_instances_list_viewed.php
@@ -0,0 +1,81 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Course module instances list_viewed event.
+ *
+ * @package    core
+ * @copyright  2013 Frédéric Massart
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace core\event;
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Course module instances list viewed event class.
+ *
+ * This is an abstract to guide the developers in using this event name for their events.
+ * It is intended to be used when the user viewes the list of all the instances of a module
+ * in a course. This replaces the historical 'view all' log entry generated in mod/somemod/index.php.
+ *
+ * Example:
+ *
+ *     \mod_chat\event\instances_list_viewed extends \core\event\course_module_instances_list_viewed
+ *
+ * @package    core
+ * @copyright  2013 Frédéric Massart
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+abstract class course_module_instances_list_viewed extends \core\event\content_viewed {
+
+    /**
+     * Init method.
+     *
+     * @return void
+     */
+    protected function init() {
+        $this->data['crud'] = 'r';
+        $this->data['level'] = self::LEVEL_OTHER;
+    }
+
+    /**
+     * Set page detail.
+     *
+     * Override to prevent its use.
+     */
+    public function set_page_detail() {
+    }
+
+    /**
+     * Custom validation.
+     *
+     * The parent validation is ignored on purpose.
+     *
+     * @throws \coding_exception
+     * @return void
+     */
+    protected function validate_data() {
+        if ($this->context->contextlevel !== CONTEXT_COURSE) {
+           throw new \coding_exception('The context must be a course level context.');
+        }
+        // Hack to by pass the requirement of the parent class. 'view_all' was the old fashioned-way
+        // to describe the page listing all the instances of a module in a course.
+        $this->data['other']['content'] = 'view_all';
+        parent::validate_data();
+    }
+
+}