My problem is that I want to set a value to one field of an Entity and this value comes from a form.
The form is bound to another entity and this field of the form is named fmedida.
This is what I've tried
$hijo-> setFinicio(new \DateTime($form->getData()->getfmedida()));
But of course the syntax is not correct since I have this error message:
"DateTime::__construct() expects parameter 1 to be string, object given"
I advise you to var_dump the value that you get from $form->getData()->getfmedida() and see what is happening.
When I tried getData(), it returns array on my side, so also try:
$data = $form->getData();
$fmedida = $data['fmedida'];
$hijo-> setFinicio(new \DateTime($fmedida));
Also, DateTime creates DateTime objects from strings. Obviously, the value which you are getting from $form->getData()->getfmedida() is not a string, it's a object. If $form->getData()->getfmedida() gives you a DateTime object, I can't see a point in using DateTime, so just
$hijo-> setFinicio($form->getData()->getfmedida());
should be enough.
