Passing Results from SQL to Google Maps API in CodeIgniter - php

Question

I'm hoping to use Google Maps on my site.
My addresses are stored in a DB. I’m pulling up a page where the information is all dynamic. For example: mysite.com/site/business/5 (where 5 is the id of the business).
Let’s say I do a query like this:
function addressForMap($id) {
$this->db->select('b.id, b.busaddress, b.buscity, b.buszip');
$this->db->from('business as b');
$this->db->where('b.id', $id);
$this->db->limit(1);
// add a limit
$this->db->limit(1);
// get the results.. cha-ching
$q = $this->db->get();
// any results?
if($q->num_rows() !== 1)
{
return FALSE;
}
return $q->row();
}
How can I output the info to the Google Maps API correctly so that it displays the map appropriately?
The API interface takes the results like this: $marker['address'] = 'Crescent Park, Palo Alto';.
Here's what I have in the controller:
$marker = array();
$address = $this->Business_model->addressForMap($id); //Get result row
$marker['address'] = $address->busaddress .' '.$address->buscity .', '. $address->buszip;

Answer 1

The MODEL
function addressForMap($id)
{
$this->db->select('b.id, b.busaddress, b.buscity, b.buszip');
$this->db->from('business as b');
$this->db->where('b.id', $id);
// add a limit
$this->db->limit(1);
// get the results.. cha-ching
$q = $this->db->get();
// any results?
if($q->num_rows() !== 1)
{
return FALSE;
}
return $q->row();
}
The CONTROLLER
function your_controller_method($id)
{
$data = $this->Business_model->addressForMap($id);
// did we get any results?
if($data === FALSE)
{
show_error();
return;
}
$marker['address'] = $data->busaddress.' '.$data->buscity.', '.$data->buszip;
}
Make sure you validate that $id is an actual numerical id. It's a good thing to do before actually performing the query.. IMO.
EDIT #2: See changed code above
EDIT #1: From your comment and changes
You've got this:
return $this->db->get();
when, based on the rest of your code, it should be this:
$query = $this->db->get();
When you return the query object, the variable $address gets assigned the CI result object. so, in your controller, you would actually have to do something like this:
$address = $this->Business_model->addressForMap($id);
$row = $address->row();
$marker['address'] = $row->busaddress .' '.$row->buscity .', '. $row->buszip;
Still... I would suggest changing return to $query = and you could keep your controller as it is.

Answer 2

Here's the Final correct code:
For the Controller:
$address = $this->Business_model->addressForMap($id); //Get result row
$config['apikey'] = 'google-api-key';
$config['center_address'] = $address->busaddress .', '. $address->buscity;
$this->googlemaps->initialize($config);
$marker = array();
// $marker['address'] = $address->busaddress .' '.$address->buscity .', '. $address->buszip;
$marker['address'] = $address->busaddress .', '. $address->buscity;
$this->googlemaps->add_marker($marker);
$data['map'] = $this->googlemaps->create_map();
$data['address'] = $address->busaddress .', '.$address->buscity;
For the Model:
function addressForMap($id) {
$this->db->select('b.id, b.busaddress, b.buscity, b.buszip');
$this->db->from('business as b');
$this->db->where('b.id', $id);
$this->db->limit(1);
// add a limit
$this->db->limit(1);
// get the results.. cha-ching
$q = $this->db->get();
// any results?
if($q->num_rows() !== 1)
{
return FALSE;
}
return $q->row();
}

Answer 3

Thanks for using my library. It looks I posted the solution on my blog at near enough exactly the same time as you did on here :-P
Glad to hear you got it sorted though!