updating a record mysql with zend framework 2 - mysql

Question

I want to update a record, in my case the records name is kindOfFood_vote
I don't quite understand yet how to update a specific record.
I did it this way, but it doesn't work so I assume it's wrong.
first a made a variable data where i store it :
$data = array(
'kindOfFood_name' => $food->kindOfFood_name,
'kindOfFood_votes' => $food->kindOfFood_votes += 1,
);
The insert query works fine, But maybe there can be something wrong with this line of code :
'kindOfFood_votes' => $food->kindOfFood_votes += 1,
This is were I insert or update :
if ($id == 0) {
if ($rowset->count() > 0) {
$this->tableGateway->update($data,array('kindOfFood_name' => $kindOfFood_name));
}else{
$this->tableGateway->insert($data);
}
}
I don't see the problem.
I would be very grateful if someone could help me with this.

Answer 1

Try -
$data = array(
'kindOfFood_name' => $food->kindOfFood_name,
'kindOfFood_votes' => new \Zend\Db\Sql\Expression('kindOfFood_votes + 1'),
);
For single record this would have worked -
$this->tableGateway->update(
array(
'kindOfFood_votes' => new \Zend\Db\Sql\Expression('kindOfFood_votes + 1')
),
array('kindOfFood_name' => $kindOfFood_name)
);