add answer, time, status helpers

common/helpers/AnswerHelper.php

@@ -0,0 +1,42 @@
+<?php
+
+namespace common\helpers;
+
+use yii\helpers\ArrayHelper;
+use Exception;
+use yii\helpers\Html;
+
+class AnswerHelper
+{
+    const FLAG_TRUE = 1;
+    const FLAG_FALSE = 0;
+
+    public static function answerFlagsList(): array
+    {
+        return [
+            self::FLAG_TRUE => 'Верен',
+            self::FLAG_FALSE => 'Ошибочный',
+        ];
+    }
+
+    /**
+     * @throws Exception
+     */
+    public static function statusLabel($status): string
+    {
+        switch ($status) {
+            case self::FLAG_FALSE:
+                $class = 'label label-danger';
+                break;
+            case self::FLAG_TRUE:
+                $class = 'label label-success';
+                break;
+            default:
+                $class = 'label label-default';
+        }
+
+        return Html::tag('span', ArrayHelper::getValue(self::answerFlagsList(), $status), [
+            'class' => $class,
+        ]);
+    }
+}