How to work with join data in codeigniter? - php

Question

I am having a play around with codeigniter and trying to get my head around the active record system and such like.
I have set up a couple of tables and am attempting to run a join on them, as such:
function GetOrganisationsAndBuildingDetails()
{
$this->db->select('organisations.organisation_name,
organisations.organisation_id,
buildings.building_name,
buildings.address1');
$this->db->from('organisations')->join('buildings', 'buildings.organisation_id = organisations.organisation_id');
$query = $this->db->get();
return $query->result();
}
In my database i have one organisation with two related buildings. The above query returns two objects (one for each building) - however, the organisation is duplicated.
stdClass Object (
[organisation_name] => This is an example org
[organisation_id] => 1
[building_name] => test building
[address1] => 123456 )
stdClass Object (
[organisation_name] => This is an example org
[organisation_id] => 1
[building_name] => teeeest building
[address1] => 123456 )
I suppose I was expecting something along the lines of one return object with a series of nested objects for related buildings. Is this possible?
If not, is their a recommend way of arranging the return data so I can easily loop through it in the view? (foreach org, foreach building etc etc).
Apologies if I'm being a little dense here. Im coming from .net and (linq to SQL in particular) where this stuff is a little different)

Answer 1

The query will inevitably return duplicate data as you say, you have to organize them after you get the result like this
$buildings = array();
foreach ( $result_object as $organization ) {
$building_data = array(
'building_name' => $organization->building_name,
'address' => $organization->address,
);
$buildings[$organization->organization_name][] = $building_data;
}
this way organizations will be "compacted" in the first key of the multidimensional array, and one level deeper you will have info about the buildings. Hope this helps.