FEATURE: make settings accessible only using helper class/function

app/Helpers/Settings.php

@@ -0,0 +1,62 @@
+<?php
+
+namespace App\Helpers;
+
+use App\Models\Settings as SettingsModel;
+
+/**
+ * Class Settings
+ *
+ * Helper class for easier obtaining system settings
+ *
+ * @package App\Helpers
+ */
+class Settings
+{
+    /**
+     * @var array List of all used settings
+     */
+    protected static $settings;
+    /**
+     * @var bool Are data already initialized?
+     */
+    protected static $initialized = false;
+
+    /**
+     * Getter for settings determined with key.
+     *
+     * @param string      $key     settings key
+     * @param string|null $default default value, which will be returned when given key does not exist
+     *
+     * @return string|null
+     */
+    public static function get($key, $default = null)
+    {
+        self::init();
+
+        return isset(self::$settings->$key) ? self::$settings->$key : $default;
+    }
+
+    /**
+     * Get all settings
+     *
+     * @return array
+     */
+    public static function all()
+    {
+        self::init();
+
+        return self::$settings;
+    }
+
+    /**
+     * Initialize settings array
+     */
+    private static function init()
+    {
+        if (!self::$initialized) {
+            $model = new SettingsModel();
+            self::$settings = $model->getAll();
+        }
+    }
+}