Make course backups table searchable

classes/local/form/form_backups_filter.php

+<?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/>.
+
+/**
+ * A moodle form for filtering the course backups table
+ *
+ * @package    tool_lifecycle
+ * @copyright  2021 Justus Dieckmann WWU
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace tool_lifecycle\local\form;
+
+defined('MOODLE_INTERNAL') || die();
+
+require_once($CFG->libdir . '/formslib.php');
+
+/**
+ * A moodle form for filtering the course backups table
+ *
+ * @package    tool_lifecycle
+ * @copyright  2021 Justus Dieckmann WWU
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class form_backups_filter extends \moodleform {
+
+    /**
+     * Defines forms elements
+     */
+    public function definition() {
+        $mform = $this->_form;
+
+        $mform->addElement('text', 'shortname', get_string('shortname'));
+        $mform->setType('shortname', PARAM_TEXT);
+
+        $mform->addElement('text', 'fullname', get_string('fullname'));
+        $mform->setType('fullname', PARAM_TEXT);
+
+        $this->add_action_buttons(true, get_string('apply', 'tool_lifecycle'));
+    }
+
+}

classes/local/table/course_backups_table.php

@@ -39,14 +39,31 @@ class course_backups_table extends \table_sql {
     /**
      * Constructor for course_backups_table.
      * @param int $uniqueid Unique id of this table.
+     * @param \stdClass|null $filterdata
      */
-    public function __construct($uniqueid) {
+    public function __construct($uniqueid, $filterdata) {
         parent::__construct($uniqueid);
-        global $PAGE;
+        global $PAGE, $DB;
         $this->set_attribute('class', $this->attributes['class'] . ' ' . $uniqueid);
+
+        $where = ['TRUE'];
+        $params = [];
+
+        if ($filterdata) {
+            if ($filterdata && $filterdata->shortname) {
+                $where[] = $DB->sql_like('b.shortname', ':shortname', false, false);
+                $params['shortname'] = '%' . $DB->sql_like_escape($filterdata->shortname) . '%';
+            }
+
+            if ($filterdata && $filterdata->fullname) {
+                $where[] = $DB->sql_like('b.fullname', ':fullname', false, false);
+                $params['fullname'] = '%' . $DB->sql_like_escape($filterdata->fullname) . '%';
+            }
+        }
+
         $this->set_sql('b.id, b.courseid, b.shortname as courseshortname, b.fullname as coursefullname, b.backupcreated',
             '{tool_lifecycle_backups} b',
-            "TRUE");
+            join(" AND ", $where), $params);
         $this->no_sorting('download');
         $this->no_sorting('restore');
         $this->define_baseurl($PAGE->url);

coursebackups.php

@@ -32,7 +32,23 @@ admin_externalpage_setup('tool_lifecycle_coursebackups');
 
 $PAGE->set_url(new \moodle_url('/admin/tool/lifecycle/coursebackups.php'));
 
-$table = new tool_lifecycle\local\table\course_backups_table('tool_lifecycle_course_backups');
+$mform = new \tool_lifecycle\local\form\form_backups_filter();
+
+// Cache handling.
+$cache = cache::make('tool_lifecycle', 'mformdata');
+if ($mform->is_cancelled()) {
+    $cache->delete('coursebackups_filter');
+    redirect($PAGE->url);
+} else if ($data = $mform->get_data()) {
+    $cache->set('coursebackups_filter', $data);
+} else {
+    $data = $cache->get('coursebackups_filter');
+    if ($data) {
+        $mform->set_data($data);
+    }
+}
+
+$table = new tool_lifecycle\local\table\course_backups_table('tool_lifecycle_course_backups', $data);
 
 $PAGE->set_title(get_string('course_backups_list_header', 'tool_lifecycle'));
 $PAGE->set_heading(get_string('course_backups_list_header', 'tool_lifecycle'));
@@ -40,6 +56,13 @@ $PAGE->set_heading(get_string('course_backups_list_header', 'tool_lifecycle'));
 $renderer = $PAGE->get_renderer('tool_lifecycle');
 
 echo $renderer->header();
+
+echo '<br>';
+
+$mform->display();
+
+echo '<br>';
+
 $table->out(50, false);
 echo $renderer->footer();