CodeIgniter Active Record For Joining The Tables - codeigniter

Question

I've following tables.
apartments
id name slug created modified
apartment_amenities
id name slug apartment_id created modified
apartment_activities
id name slug apartment_id created modified
In the view I wanted something like this.
no apartment_name amenities activities
1 shobha_comnplex party hall pamplets
swimming pool banners
play area boards
2 navami_comnplex party hall boards
swimming pool banners
club house pamplets
In the model I tried like this.
$this->db->select('apartments.id, apartments.slug, apartments.name, apartment_amenities.name as amenity_name, apartment_activities.name as activity_name');
$this->db->from($this->_table);
$this->db->join('apartment_amenities', 'apartment_amenities.apartment_id = apartments.id', 'left');
$this->db->join('apartment_activities', 'apartment_activities.apartment_id = apartments.id', 'left');
return $this->db->get();
But I'm getting only single amenity and activity even the apartment has many amenities and activities. The result is as follows.
Array
(
[0] =>
(
[id] => 1
[slug] => shobha_complex
[name] => shobha complex
[amenity_name] => party hall
[activity_name] => pamplets
),
[1] =>
(
[id] => 1
[slug] => navami_complex
[name] => navami complex
[amenity_name] => party hall
[activity_name] => boards
)
)
I want the result something like as follows.
Array
(
[0] =>
(
[id] => 1
[slug] => shobha_complex
[name] => shobha complex
[amenities] => Array(
[0] =>
(
[name] => party hall
),
[1] =>
(
[name] => swimming pool
),
[2] =>
(
[name] => play area
)
),
[activities] => Array(
[0] =>
(
[name] => pamplets
),
[1] =>
(
[name] => banners
),
[2] =>
(
[name] => boards
)
)
),
[1] =>
(
[id] => 1
[slug] => navami_complex
[name] => Navami complex
[amenities] => Array(
[0] =>
(
[name] => party hall
),
[1] =>
(
[name] => swimming pool
),
[2] =>
(
[name] => club house
)
),
[activities] => Array(
[0] =>
(
[name] => boards
),
[1] =>
(
[name] => banners
),
[2] =>
(
[name] => pamplets
)
)
),
)
Please suggest me how would I get the solution. The work would be more appreciated.

Answer 1

You can use group concat on your select and use as separator | so you will get only two row and on your view split the column with the separator
$this->db->select("GROUP_CONCAT(partment_amenities.name SEPARATOR '|') as amenity_name, ...... ", FALSE);
Second parameter FALSE for not to protect identifier
See the link for more about group concate:
https://dev.mysql.com/doc/refman/5.0/en/group-by-functions.html#function_group-concat

Answer 2

Remove the $this->db->group_by method call.
This would only return one result for each apartment. If you remove this, you should get all the amenities you want etc.
The only problem would be that you get results like this
no apartment_name amenities activities
1 shobha_comnplex party hall pamplets
1 shobha_comnplex swimming pool banners
1 shobha_comnplex play area boards
2 navami_comnplex party hall boards
2 navami_comnplex swimming pool banners
2 navami_comnplex club house pamplets

Answer 3

To setup a proper array, in the format your looking for i would advise having a few models in place.
Lets setup a scenerio
Controller:
$apartments = $this->apartment_model->getApartments(); // Get All Apartments
foreach($apartments as &$apartment)
{
$apartment->amenities = $this->apartment_model->getAmenities($apartment->id);
$apartment->activities= $this->apartment_model->getActivities($apartment->id);
// Add / Modify any addition properties
}
// Do something with the $apartments array
Model:
class Apartment_model extends model
{
function getApartments()
{
$this->db->select('id, slug, name');
$this->db->from('apartments');
$query = $this->db->get();
return $query->result();
}
function getAmenities($apartment_id)
{
$this->db->select('name');
$this->db->from('apartment_amenities');
$this->db->where('id', $apartment_id);
$query = $this->db->get();
return $query->result();
}
function getActivities($apartment_id)
{
$this->db->select('name');
$this->db->from('apartment_activities');
$this->db->where('id', $apartment_id);
$query = $this->db->get();
return $query->result();
}
}
Of course keep in mind this doesnt load the view yet or move your data anywhere past the controller, but it will at least setup the array.
I hope this helps get you started.