Actualización

vendor/ddeboer/data-import/src/ValueConverter/DateTimeToStringValueConverter.php

@@ -0,0 +1,48 @@
+<?php
+
+namespace Ddeboer\DataImport\ValueConverter;
+
+use Ddeboer\DataImport\Exception\UnexpectedValueException;
+
+/**
+ * Convert an date time object into string
+ */
+class DateTimeToStringValueConverter
+{
+    /**
+     * Date time format
+     *
+     * @var string
+     * @see http://php.net/manual/en/datetime.createfromformat.php
+     */
+    protected $outputFormat;
+
+    /**
+     * @param string $outputFormat
+     */
+    public function __construct($outputFormat = 'Y-m-d H:i:s')
+    {
+        $this->outputFormat = $outputFormat;
+    }
+
+    /**
+     * Convert string to date time object
+     * using specified format
+     *
+     * @param mixed $input
+     * @return \DateTime|string
+     * @throws UnexpectedValueException
+     */
+    public function convert($input)
+    {
+        if (!$input) {
+            return;
+        }
+
+        if (!($input instanceof \DateTime)) {
+            throw new UnexpectedValueException('Input must be DateTime object.');
+        }
+
+        return $input->format($this->outputFormat);
+    }
+}