Question

I’m trying to use Doctrine with a poorly designed PostgreSQL database. Some tables have DATE and TIME fields that should be TIMESTAMP fields.

Is it possible map a pair of DATE and TIME fields into a DateTime property on my classes?

Answer 1

You could create a method getTimestamp() that would return a new \DateTime($this->getDate()-­>format('Y-m-d') . ' ' . $this->getTime()->format('H:i:s')) object and create a setTimestamp(\DateTime $date) method that would set the two values by get date and time separatly.

public function setDate(\DateTime $date)
{
    $this->date = $date;
}

public function getTime()
{
    return $date;
}

public function setTime(\DateTime $date)
{
    $this->date = $date;
}

public function getTime()
{
    return $date;
}

public function getTimeStamp() {
    return new \DateTime($this-­­>getDate()-­>format('Y-m-d') . ' ' . $this->getTime()->format('H:i:s'));
}

public function setTimeStamp(\DateTime $timestamp) {
    $this->setDate(new \DateTime($timestamp->format('Y-m-d'));
    $this->setTime(new \DateTime($timestamp->format('H:i:s'));
}

or something like that. You can then exclusively use the get/setTimestamp() in your code.

DQL

You pass your timestamp as a single param and you bind 2 params like this :

public function getSomething(\DateTime $timestamp, $someparam) {

    $dql = "SELECT ... FROM ... WHERE date = :date AND time = :time"

    // Create query and params binding
    // param('date', $timestamp-­>format('Y-m-d'));
    // param('time', $timestamp-­>format('H:i:s'));

    return $result;

}

You might have to wrap your params values in a new \DateTime() since doctrine needs a DateTime instance as date, time and timestamp.

This give you a simple interface to support in your code, but allow to make abstraction of the database schema.