Merge pull request #2028 from DoSomething/millisecond-date-bug

Fix issue parsing millisecond-precision dates before 1970.

src/Jenssegers/Mongodb/Eloquent/Model.php

@@ -99,7 +99,13 @@ abstract class Model extends BaseModel
     {
         // Convert UTCDateTime instances.
         if ($value instanceof UTCDateTime) {
-            return Date::createFromTimestampMs($value->toDateTime()->format('Uv'));
+            $date = $value->toDateTime();
+
+            $seconds = $date->format('U');
+            $milliseconds = abs($date->format('v'));
+            $timestampMs = sprintf('%d%03d', $seconds, $milliseconds);
+
+            return Date::createFromTimestampMs($timestampMs);
         }
 
         return parent::asDateTime($value);

tests/ModelTest.php

@@ -425,6 +425,14 @@ class ModelTest extends TestCase
         $user = User::create(['name' => 'Jane Doe', 'birthday' => '2005-08-08']);
         $this->assertInstanceOf(Carbon::class, $user->birthday);
 
+        // test millisecond-precision dates after 1970:
+        $user = User::create(['name' => 'Jane Doe', 'birthday' => new DateTime('2010-08-08 04.08.37.324')]);
+        $this->assertInstanceOf(Carbon::class, $user->birthday);
+
+        // test millisecond-precision dates before 1970:
+        $user = User::create(['name' => 'Jane Doe', 'birthday' => new DateTime('1965-08-08 04.08.37.324')]);
+        $this->assertInstanceOf(Carbon::class, $user->birthday);
+
         $user = User::create(['name' => 'Jane Doe', 'entry' => ['date' => '2005-08-08']]);
         $this->assertInstanceOf(Carbon::class, $user->getAttribute('entry.date'));