Changes \Datetime to \DateTimeInterface.

Command/ScheduleCommand.php

@@ -100,7 +100,7 @@ private function scheduleJobs(OutputInterface $output, ManagerRegistry $registry
         }
     }
 
-    private function acquireLock(ManagerRegistry $registry, $commandName, \DateTime $lastRunAt)
+    private function acquireLock(ManagerRegistry $registry, $commandName, \DateTimeInterface $lastRunAt)
     {
         /** @var EntityManager $em */
         $em = $registry->getManagerForClass(CronJob::class);

Console/CronCommand.php

@@ -9,10 +9,10 @@ interface CronCommand
     /**
      * @return Job
      */
-    public function createCronJob(\DateTime $lastRunAt);
+    public function createCronJob(\DateTimeInterface $lastRunAt);
 
     /**
      * @return boolean
      */
-    public function shouldBeScheduled(\DateTime $lastRunAt);
+    public function shouldBeScheduled(\DateTimeInterface $lastRunAt);
 }

Console/ScheduleInSecondInterval.php

@@ -7,12 +7,12 @@
 
 trait ScheduleInSecondInterval
 {
-    public function shouldBeScheduled(\DateTime $lastRunAt)
+    public function shouldBeScheduled(\DateTimeInterface $lastRunAt)
     {
         return time() - $lastRunAt->getTimestamp() >= $this->getScheduleInterval();
     }
 
-    public function createCronJob(\DateTime $_)
+    public function createCronJob(\DateTimeInterface $_)
     {
         if ( ! $this instanceof Command) {
             throw new \LogicException('This trait must be used in Symfony console commands only.');

Cron/CommandScheduler.php

@@ -13,12 +13,12 @@ public function __construct(CronCommand $command)
         $this->command = $command;
     }
 
-    public function shouldSchedule($_, \DateTime $lastRunAt)
+    public function shouldSchedule($_, \DateTimeInterface $lastRunAt)
     {
         return $this->command->shouldBeScheduled($lastRunAt);
     }
 
-    public function createJob($_, \DateTime $lastRunAt)
+    public function createJob($_, \DateTimeInterface $lastRunAt)
     {
         return $this->command->createCronJob($lastRunAt);
     }

Cron/JobScheduler.php

@@ -9,10 +9,10 @@ interface JobScheduler
     /**
      * @return boolean
      */
-    public function shouldSchedule($command, \DateTime $lastRunAt);
+    public function shouldSchedule($command, \DateTimeInterface $lastRunAt);
 
     /**
      * @return Job
      */
-    public function createJob($command, \DateTime $lastRunAt);
+    public function createJob($command, \DateTimeInterface $lastRunAt);
 }

Entity/Job.php

@@ -352,7 +352,7 @@ public function getExecuteAfter()
         return $this->executeAfter;
     }
 
-    public function setExecuteAfter(\DateTime $executeAfter)
+    public function setExecuteAfter(\DateTimeInterface $executeAfter)
     {
         $this->executeAfter = $executeAfter;
     }

Resources/doc/scheduled_jobs.rst

@@ -17,12 +17,12 @@ Implement CronCommand
     {
         // configure, execute, etc. ...
 
-        public function shouldBeScheduled(\DateTime $lastRunAt)
+        public function shouldBeScheduled(\DateTimeInterface $lastRunAt)
         {
             return time() - $lastRunAt->getTimestamp() >= 60; // Executed at most every minute.
         }
 
-        public function createCronJob(\DateTime $lastRunAt)
+        public function createCronJob(\DateTimeInterface $lastRunAt)
         {
             return new Job('my-scheduled-command');
         }
@@ -54,7 +54,7 @@ This is useful if you want to run a third-party command or a Symfony command as
      */
     class MyJobScheduler implements JobScheduler
     {
-        public function shouldSchedule($commandName, \DateTime $lastRunAt)
+        public function shouldSchedule($commandName, \DateTimeInterface $lastRunAt)
         {
             return time() - $lastRunAt->getTimestamp() >= 60; // Executed at most every minute.
         }

Tests/Functional/TestBundle/Command/ScheduledEveryFewSecondsCommand.php

@@ -10,12 +10,12 @@
 
 class ScheduledEveryFewSecondsCommand extends ContainerAwareCommand implements CronCommand
 {
-    public function shouldBeScheduled(\DateTime $lastRunAt)
+    public function shouldBeScheduled(\DateTimeInterface $lastRunAt)
     {
         return time() - $lastRunAt->getTimestamp() >= 5;
     }
 
-    public function createCronJob(\DateTime $_)
+    public function createCronJob(\DateTimeInterface $_)
     {
         return new Job('scheduled-every-few-seconds');
     }