Doctrine 2: Call to a member function format() on a non-object … in DateTimeType.php

Question

I have a DateTime field:

/**
 * Date time posted
 * @Column(type=\"datetime\")
 */
private $dtPosted;

which is set to a defau

Answer 1

you could always use:

$this->updated = new \DateTime("now");

http://www.doctrine-project.org/docs/orm/2.0/en/cookbook/working-with-datetime.html

Answer 2

Try and use your setCreated with annotations for @ORM\PrePersist and setUpdated with annotations for @ORM\PrePersist and @ORM\PreUpdate methods as opposed to prePersist and preUpdate methods...

/**
 * @ORM\PrePersist
 */
public function setCreated()
{
    $this->created = new \DateTime();
}

/**
 * @ORM\PrePersist
 * @ORM\PreUpdate
 */
public function setUpdated()
{
    $this->updated = new \DateTime();
}

Answer 3

I came across a similar problem, but with a time field, and this question and @romanb 's answer helped.

I was getting the following error, much like the one in the question.

Call to a member function format() on a non-object in 
... /vendor/doctrine/dbal/lib/Doctrine/DBAL/Types/TimeType.php on line 50

The solution was similar, for fields of the time datatype, Doctrine will accept an instance of PHP's DateInterval

$quizFixture1->setCompletionTime(\DateInterval::createFromDateString('743 seconds'));

Answer 4

The date() function returns a string. The datetime type works with DateTime objects. So either change the mapping type to string or use DateTime objects.