Symfony framework - check database entry existence

Question

Using symfony framework, which code is best to query database table to check if entry is already there?

I need query like this:

$q = $this->createQuery('t')
    ->where('t.email = ?', $email)
    ->andWhere('t.type = ?','newsletter');

Answer 1

The easist way, assuming you're in a Doctrine_Table instance, which it appears you are is:

$this->findOneByEmail($email);

You shouldn't need type if you're using concrete inheritance because it will be added via DQL callback (assuming you have them enabled), but for completeness:

$this->findOneByEmailAndType($email, 'newsletter');

These will return the Doctrine_Record if it exists or null if it doesn't.

You can also use a count on your query:

$exists = $this->createQuery('t')
    ->where('t.email = ?', $email)
    ->andWhere('t.type = ?','newsletter') // your probably don't need this
    ->count();

This will return either the number of records that match the query. This a more efficient as it does not hydrate the results.