DateInterval Type now is stored as Y-m-d H:i:s interval representation.

lib/Doctrine/DBAL/Types/DateIntervalType.php

@@ -10,6 +10,8 @@ use Doctrine\DBAL\Platforms\AbstractPlatform;
  */
 class DateIntervalType extends Type
 {
+    const DATEINTERVAL_PATTERN = '#(?P<date>\d{4}-\d{2}-\d{2}).(?P<time>\d{2}:\d{2}:\d{2})#';
+
     /**
      * {@inheritdoc}
      */
@@ -31,8 +33,19 @@ class DateIntervalType extends Type
      */
     public function convertToDatabaseValue($value, AbstractPlatform $platform)
     {
-        return ($value !== null)
-            ? $value->format('P%yY%mM%dDT%hH%iM%sS') : null;
+        $spec = null;
+        if ($value !== null) {
+            /** @var \DateInterval $value */
+            $spec = str_pad($value->y, 4, '0', STR_PAD_LEFT) . '-'
+                . $value->format('%M') . '-'
+                . $value->format('%D') . ' '
+                . $value->format('%H') . ':'
+                . $value->format('%I') . ':'
+                . $value->format('%S')
+            ;
+        }
+
+        return $spec;
     }
 
     /**
@@ -44,10 +57,13 @@ class DateIntervalType extends Type
             return $value;
         }
 
+        if (preg_match(self::DATEINTERVAL_PATTERN, $value, $parts) !== 1) {
+            throw ConversionException::conversionFailedFormat($value, $this->getName(), 'Y-m-d H:i:s');
+        }
         try {
-            $interval = new \DateInterval($value);
+            $interval = new \DateInterval('P' . $parts['date'] . 'T' . $parts['time']);
         } catch (\Exception $e) {
-            throw ConversionException::conversionFailedFormat($value, $this->getName(), 'PxYxMxDTxHxMxS');
+            throw ConversionException::conversionFailedFormat($value, $this->getName(), 'PY-m-dTH:i:s');
 
         }
 

tests/Doctrine/Tests/DBAL/Types/DateIntervalTest.php

@@ -19,9 +19,9 @@ class DateIntervalTest  extends \Doctrine\Tests\DbalTestCase
 
     public function testDateIntervalConvertsToDatabaseValue()
     {
-        $interval = new \DateInterval('P1DT1H2M3S');
+        $interval = new \DateInterval('P2Y1DT1H2M3S');
 
-        $expected = $interval->format('P%yY%mM%dDT%hH%iM%sS');
+        $expected = '0002-00-01 01:02:03';
         $actual = $this->_type->convertToDatabaseValue($interval, $this->_platform);
 
         $this->assertEquals($expected, $actual);
@@ -29,9 +29,9 @@ class DateIntervalTest  extends \Doctrine\Tests\DbalTestCase
 
     public function testDateIntervalConvertsToPHPValue()
     {
-        $date = $this->_type->convertToPHPValue('P1DT1H2M3S', $this->_platform);
+        $date = $this->_type->convertToPHPValue('0002-00-01 01:02:03', $this->_platform);
         $this->assertInstanceOf('DateInterval', $date);
-        $this->assertEquals('P0Y0M1DT1H2M3S', $date->format('P%yY%mM%dDT%hH%iM%sS'));
+        $this->assertEquals('P2Y0M1DT1H2M3S', $date->format('P%yY%mM%dDT%hH%iM%sS'));
     }
 
     public function testInvalidDateIntervalFormatConversion()