1 files changed, 69 insertions, 0 deletions
diff --git a/lib/classes/StudipControllerPropertiesTrait.php b/lib/classes/StudipControllerPropertiesTrait.php
new file mode 100644
index 0000000..4e906fa
--- /dev/null
+++ b/lib/classes/StudipControllerPropertiesTrait.php
@@ -0,0 +1,69 @@
+<?php
+/**
+ * This trait manages all variable assignments to the controller and templates.
+ *
+ * @author Jan-Hendrik Willms <tleilax+studip@gmail.com>
+ * @license GPL2 or any later version
+ * @since Stud.IP 5.2
+ */
+trait StudipControllerPropertiesTrait
+{
+    /**
+     * Stores the assigned variables.
+     * @var array
+     */
+    protected $_template_variables = [];
+
+    /**
+     * Returns whether a variable is set.
+     *
+     * @param string $offset
+     * @return bool
+     */
+    public function __isset(string $offset): bool
+    {
+        return isset($this->_template_variables[$offset]);
+    }
+
+    /**
+     * Stores a variable.
+     *
+     * @param string $offset
+     * @param mixed $value
+     */
+    public function __set(string $offset, $value): void
+    {
+        $this->_template_variables[$offset] = $value;
+    }
+
+    /**
+     * Returns a previously set variable.
+     *
+     * @param string $offset
+     * @return mixed
+     */
+    public function &__get(string $offset)
+    {
+        if (!isset($this->_template_variables[$offset])) {
+            $this->_template_variables[$offset] = null;
+        }
+        return $this->_template_variables[$offset];
+    }
+
+    /**
+     * Unsets a previously set variable
+     *
+     * @param string $offset
+     */
+    public function __unset(string $offset): void
+    {
+        unset($this->_template_variables[$offset]);
+    }
+
+    public function get_assigned_variables(): array
+    {
+        $variables = $this->_template_variables;
+        $variables['controller'] = $this;
+        return $variables;
+    }
+}