init

vendor/yiisoft/yii2/validators/DefaultValueValidator.php

@@ -0,0 +1,54 @@
+<?php
+/**
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yii\validators;
+
+/**
+ * DefaultValueValidator sets the attribute to be the specified default value.
+ *
+ * DefaultValueValidator is not really a validator. It is provided mainly to allow
+ * specifying attribute default values when they are empty.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @since 2.0
+ */
+class DefaultValueValidator extends Validator
+{
+    /**
+     * @var mixed the default value or an anonymous function that returns the default value which will
+     * be assigned to the attributes being validated if they are empty. The signature of the anonymous function
+     * should be as follows,
+     *
+     * ```php
+     * function($model, $attribute) {
+     *     // compute value
+     *     return $value;
+     * }
+     * ```
+     */
+    public $value;
+    /**
+     * @var bool this property is overwritten to be false so that this validator will
+     * be applied when the value being validated is empty.
+     */
+    public $skipOnEmpty = false;
+
+
+    /**
+     * {@inheritdoc}
+     */
+    public function validateAttribute($model, $attribute)
+    {
+        if ($this->isEmpty($model->$attribute)) {
+            if ($this->value instanceof \Closure) {
+                $model->$attribute = call_user_func($this->value, $model, $attribute);
+            } else {
+                $model->$attribute = $this->value;
+            }
+        }
+    }
+}