1 files changed, 169 insertions, 0 deletions
diff --git a/lib/admissionrules/termsadmission/TermsAdmission.php b/lib/admissionrules/termsadmission/TermsAdmission.php
new file mode 100644
index 0000000..eb83dfc
--- /dev/null
+++ b/lib/admissionrules/termsadmission/TermsAdmission.php
@@ -0,0 +1,169 @@
+<?php
+/**
+ * TermsAdmission.php
+ *
+ * Represents a rule for course access with conditions of admission to be accepted.
+ *
+ * This program 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 2 of
+ * the License, or (at your option) any later version.
+ *
+ * @author      Niklas Dettmer <ndettmer@uos.de>
+ * @license     http://www.gnu.org/licenses/gpl-2.0.html GPL version 2
+ * @category    Stud.IP
+ */
+
+class TermsAdmission extends AdmissionRule
+{
+    // Terms of admission
+    public $terms;
+
+    /**
+     * Standard constructor.
+     *
+     * @param  String ruleId
+     */
+    public function __construct($ruleId = '', $courseSetId = '')
+    {
+        parent::__construct($ruleId, $courseSetId);
+
+        if ($ruleId) {
+            $this->load();
+        } else {
+            $this->id = $this->generateId('termsadmissions');
+        }
+    }
+
+    /**
+     * Deletes the admission rule and all associated data.
+     */
+    public function delete()
+    {
+        parent::delete();
+
+        $stmt = DBManager::get()->prepare('DELETE FROM termsadmissions WHERE rule_id = ?');
+        $stmt->execute([$this->getId()]);
+    }
+
+    /**
+     * Gets some text that describes what this AdmissionRule (or respective
+     * subclass) does.
+     */
+    public static function getDescription()
+    {
+        return _('Mit dieser Anmelderegel können Sie einen Kurs mit spezifischen Teilnahmebedingungen realisieren. '
+               . 'Die Anmeldung ist erst möglich, nachdem diese akzeptiert wurden.');
+    }
+
+    /**
+     * Shows an input form
+     *
+     * @return string A template-based input form.
+     * @throws Flexi\TemplateNotFoundException
+     */
+    public function getInput()
+    {
+        $factory = new Flexi\Factory(__DIR__ . '/templates');
+        $template = $factory->open('input');
+        $template->rule = $this;
+
+        return (string) MessageBox::info($template->render())->hideClose();
+    }
+
+    /**
+     * Return this rule's name.
+     */
+    public static function getName() {
+        return _('Kurs mit Teilnahmebedingungen');
+    }
+
+    /**
+     * Gets the template that provides a configuration GUI for this rule.
+     *
+     * @return String
+     * @throws Flexi\TemplateNotFoundException
+     */
+    public function getTemplate()
+    {
+        $factory = new Flexi\Factory(__DIR__ . '/templates');
+        $template = $factory->open('configure');
+        $template->rule = $this;
+
+        return $template->render();
+    }
+
+    /**
+     * Does the current rule allow the given user to register as participant
+     * in the given course?
+     *
+     * @param  String userId
+     * @param  String courseId
+     * @return Array
+     */
+    public function ruleApplies($userId, $courseId)
+    {
+        $errors = [];
+
+        // check if the user has accepted the terms
+        if (Request::int('terms_accepted')) {
+            $_SESSION['terms_accepted_' . $this->getId()] = true;
+        }
+        if (!$_SESSION['terms_accepted_' . $this->getId()]) {
+            $errors[] = _('Um sich anzumelden, müssen Sie die Teilnahmebedingungen akzeptieren.');
+        }
+
+        return $errors;
+    }
+
+    /**
+     * Uses the given data to fill the object values. This can be used
+     * as a generic function for storing data if the concrete rule type
+     * isn't known in advance.
+     *
+     * @param Array $data
+     * @return AdmissionRule This object.
+     */
+    public function setAllData($data)
+    {
+        parent::setAllData($data);
+        $this->terms = trim($data['terms']);
+        return $this;
+    }
+
+    /**
+     * Internal helper function for loading rule definition from database.
+     */
+    public function load()
+    {
+        $rule = DBManager::get()->fetchOne('SELECT * FROM termsadmissions WHERE rule_id = ?', [$this->getId()]);
+        $this->terms = $rule['terms'];
+        return $this;
+    }
+
+    /**
+     * Store rule definition to database.
+     */
+    public function store()
+    {
+        // Store data.
+        $stmt = DBManager::get()->prepare('INSERT INTO termsadmissions (rule_id, terms, mkdate, chdate) VALUES (?, ?, ?, ?)
+                                            ON DUPLICATE KEY UPDATE terms = VALUES(terms), chdate = VALUES(chdate)');
+        $stmt->execute([$this->id, $this->terms, time(), time()]);
+    }
+
+    /**
+     * A textual description of the current rule.
+     *
+     * @return String
+     * @throws Flexi\TemplateNotFoundException
+     */
+    public function toString()
+    {
+        $factory = new Flexi\Factory(__DIR__ . '/templates/');
+        $template = $factory->open('info');
+        $template->rule = $this;
+
+        return $template->render();
+    }
+}