Fixed DateValidator to respect time when `format` is `php:U`

Fixes #15628

framework/CHANGELOG.md

@@ -5,6 +5,8 @@ Yii Framework 2 Change Log
 ------------------------
 
 - Bug #15658: Fixed `yii\filters\auth\HttpBasicAuth` not to switch identity, when user is already authenticated and identity does not get changed (silverfire)
+- Bug #15628: Fixed `yii\validators\DateValidator` to respect time when the `format` property is set to UNIX Epoch format (silverfire, gayHacker)
+- Bug #15658: Fixed `yii\db\HttpBasicAuth` not to switch identity, when user is already authenticated and identity does not get changed (silverfire)
 - Bug #9342: Fixed `yii\db\ActiveQueryTrait` to apply `indexBy` after relations population in order to prevent excess queries (sammousa, silverfire)
 - Enh #13425: Added caching of dynamically added URL rules with `yii\web\UrlManager::addRules()` (scriptcube, silverfire)
 - Bug #15644: Avoid wrong default selection on a dropdown, checkbox list, and radio list, when a option has a key equals to zero (berosoboy)

framework/validators/DateValidator.php

@@ -402,7 +402,7 @@ class DateValidator extends Validator
     private function parseDateValuePHP($value, $format)
     {
         // if no time was provided in the format string set time to 0 to get a simple date timestamp
-        $hasTimeInfo = (strpbrk($format, 'HhGgis') !== false);
+        $hasTimeInfo = (strpbrk($format, 'HhGgisU') !== false);
 
         $date = DateTime::createFromFormat($format, $value, new \DateTimeZone($hasTimeInfo ? $this->timeZone : 'UTC'));
         $errors = DateTime::getLastErrors();

tests/framework/validators/DateValidatorTest.php

@@ -675,4 +675,20 @@ class DateValidatorTest extends TestCase
         $this->assertFalse($model->hasErrors('attr_date'));
         $this->assertNull($model->attr_timestamp);
     }
+
+    /**
+     * Tests that DateValidator with format `php:U` does not truncate timestamp to date.
+     * @see https://github.com/yiisoft/yii2/issues/15628
+     */
+    public function testIssue15628()
+    {
+        $validator = new DateValidator(['format' => 'php:U' , 'type' => DateValidator::TYPE_DATETIME, 'timestampAttribute' => 'attr_date']);
+        $model = new FakedValidationModel();
+        $value = 1518023610;
+        $model->attr_date = $value;
+
+        $validator->validateAttribute($model, 'attr_date');
+
+        $this->assertEquals($value, $model->attr_date);
+    }
 }