MAGETWO-69524: Value of updated_at Field is not Updated in "quote" Table

Author: aakimov

app/code/Magento/Quote/Model/Quote.php

@@ -836,6 +836,10 @@ public function beforeSave()
         //mark quote if it has virtual products only
         $this->setIsVirtual($this->getIsVirtual());
 
+        if ($this->hasDataChanges()) {
+            $this->setUpdatedAt(null);
+        }
+
         parent::beforeSave();
     }
 

app/code/Magento/Quote/Setup/UpgradeSchema.php

@@ -89,6 +89,14 @@ public function upgrade(SchemaSetupInterface $setup, ModuleContextInterface $con
                     'type' => \Magento\Framework\DB\Ddl\Table::TYPE_TEXT,
                     'length' => 255,
                 ]
+            )->modifyColumn(
+                $setup->getTable('quote', self::$connectionName),
+                'updated_at',
+                [
+                    'type' => \Magento\Framework\DB\Ddl\Table::TYPE_TIMESTAMP,
+                    'nullable' => false,
+                    'default' => \Magento\Framework\DB\Ddl\Table::TIMESTAMP_INIT_UPDATE,
+                ]
             );
         }
         $setup->endSetup();

app/code/Magento/Quote/Test/Unit/Model/QuoteTest.php

@@ -1188,6 +1188,7 @@ public function testBeforeSaveIsVirtualQuote(array $productTypes, $expected)
 
         $this->quote->beforeSave();
         $this->assertEquals($expected, $this->quote->getDataByKey(CartInterface::KEY_IS_VIRTUAL));
+        $this->assertNull($this->quote->getUpdatedAt());
     }
 
     /**