current code from svn, revision 62608

1 files changed, 54 insertions, 0 deletions

diff --git a/lib/classes/RangeFactory.php b/lib/classes/RangeFactory.php
new file mode 100644
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--- /dev/null
+++ b/lib/classes/RangeFactory.php
@@ -0,0 +1,54 @@
+<?php
+/**
+ * Factory for ranges.
+ *
+ * @author  Jan-Hendrik Willms <tleilax+studip@gmail.com>
+ * @license GPL2 or any later version
+ * @since Stud.IP 4.1
+ */
+final class RangeFactory
+{
+    const TYPE_MAPPING = [
+        'sem'  => 'course',
+        'user' => 'user',
+        'inst' => 'institute',
+        'fak'  => 'institute',
+    ];
+
+    public static function find($id)
+    {
+        $type = get_object_type($id, ['sem', 'user', 'inst', 'fak']);
+        if ($type === false) {
+            return false;
+        }
+
+        return self::createRange(self::TYPE_MAPPING[$type], $id);
+    }
+
+    /**
+     * Create a range by given type and id.
+     *
+     * @param string $type Range type
+     * @param mixed  $id   Range id
+     * @return mixed any of the supported range types
+     * @throws Exception when an invalid range type was given
+     *
+     * @todo Should this be more dynamic in case any more ranges are added?
+     */
+    public static function createRange($type, $id)
+    {
+        if ($type === 'user') {
+            return new User($id);
+        }
+
+        if ($type === 'course') {
+            return new Course($id);
+        }
+
+        if ($type === 'institute' || $type === 'fak') {
+            return new Institute($id);
+        }
+
+        throw new Exception('Unknown type');
+    }
+}