CodeIgniter - return only one row?
DatabaseCodeigniterDatabase Problem Overview
At the moment if I am doing a query on the database that should only return one row, using:
...query stuff...
$query = $this->db->get();
$ret = $query->result();
return $ret[0]->campaign_id;
Is there a CodeIgniter function to return the first row?
something like $query->row();
Or even better would be the ability to, if there was only one row, to just use the query object directly.
e.g. $query->campaign_id;
Database Solutions
Solution 1 - Database
You've just answered your own question :) You can do something like this:
$query = $this->db->get();
$ret = $query->row();
return $ret->campaign_id;
You can read more about it here: http://www.codeigniter.com/user_guide/database/results.html
Solution 2 - Database
This is better way as it gives you result in a single line:
$this->db->query("Your query")->row()->campaign_id;
Solution 3 - Database
To add on to what Alisson said you could check to see if a row is returned.
// Query stuff ...
$query = $this->db->get();
if ($query->num_rows() > 0)
{
$row = $query->row();
return $row->campaign_id;
}
return null; // or whatever value you want to return for no rows found
Solution 4 - Database
To make the code clear that you are intending to get the first row, CodeIgniter now allows you to use:
if ($query->num_rows() > 0) {
return $query->first_row();
}
To retrieve the first row.
Solution 5 - Database
$this->db->get()->row()->campaign_id;
Solution 6 - Database
Change only in two line and you are getting actually what you want.
$query = $this->db->get();
$ret = $query->row();
return $ret->campaign_id;
try it.
Solution 7 - Database
If you require to get only one record from database table using codeigniter query then you can do it using row(). we can easily return one row from database in codeigniter.
$data = $this->db->get("items")->row();
Solution 8 - Database
We can get a single using limit in query
$query = $this->db->get_where('mytable', array('id' => $id), $limit, $offset);
$query = $this->db->get_where('mytable', array('id' => $id), $limit, $offset);
Solution 9 - Database
You can do like this
$q = $this->db->get()->row();
return $q->campaign_id;
Documentation : http://www.codeigniter.com/user_guide/database/results.html
Solution 10 - Database
Option 1 $limit = 1 $offset = 0
$query = $this->db->get_where('items', array('id' => $id), $limit, $offset);
Option 2
$this->db->get("items")->row();
Solution 11 - Database
class receipt_model extends CI_Model {
public function index(){
$this->db->select('*');
$this->db->from('donor_details');
$this->db->order_by('donor_id','desc');
$query=$this->db->get();
$row=$query->row();
return $row;
}
}