Codeigniter db query on two tables - php

Question

Im new to codeigniter and php, mysql and i am making a codeigniter app, and have a question about db querys using active records.
I want to loop through the "users" table and at the same time get a table called cv where the userid is equal to owner_id in the cv records. The cv table has a lot of columns like school, start_date, end_date, grades etc. Heres how i did it:
The controller:
function index() {
$data['members'] = $this->user_model->_search_members();
$data['main_content'] = 'agency/start';
$this->load->view('site_view', $data);
}
The model:
function _search_members()
{
$this->db->select('id,username,first_name,last_name,company,presentation,title_1,title_2,title_3,last_login,user_pic,counties,municipalities,birthday,gender,webpage')->from('users');
$query = $this->db->get();
if ($query->num_rows() > 0) {
return $query->result();
}
}
function _get_cv($id) {
$this->db->select()->where('owner_id',$id);
$query = $this->db->get('cv');
return $query->result();
}
The view:
<section id="main">
<h2>Search members</h2>
<table>
<tr>
<td></td>
<td>User</td>
<td>Gender</td>
<td>Name</td>
<td>Title</td>
<td>Location</td>
<td>Age</td>
<td>School</td>
</tr>
<?php foreach ($members as $member) : ?>
<?php $cvs = $this->user_model->_get_cv($member->id); ?>
<tr>
<td><img src="<?=base_url()?>images/users/thumbs/<?=$member->user_pic;?>" alt=""></td>
<td><?php echo $member->username;?></td>
<td><?php echo $member->gender;?></td>
<td><?php echo $member->first_name; ?> <?php echo $member->last_name; ?></td>
<td><?php echo $member->title_1; ?> / <?php echo $member->title_2; ?> / <?php echo $member->title_3; ?></td>
<td><?php echo $member->counties; ?> i <?php echo $member->municipalities; ?></td>
<td><?php echo $member->birthday;?></td>
<td>
<?php foreach ($cvs as $cv) : ?>
<?php echo $cv->school; ?>
<?php endforeach; ?>
</td>
</tr>
<?php endforeach; ?>
</table>
Now my question is, is this a good way to do it? I also want to be able to search through the users and cv tables on the page with a form i am creating later. Should i do a join on the tables instead to able to make better search queries or can i still do it this way?
Any help appreciated.
Regards
George

Answer 1

Use it like this:
$this->db->select('*');
$this->db->from('users');
$this->db->join('cv', 'users.id = cv.owner_id','left');
$query = $this->db->get();
For more information:
http://codeigniter.com/user_guide/database/active_record.html
Updated:
$this->db->select('*');
$this->db->from('users');
$this->db->join('cv', 'users.id = cv.owner_id','left');
$data = $this->db->get();
$group_cv = $users = array();
foreach ($data as $k=>$v) {
$group_cv[$v['id']][] = $v;
}
foreach ($data as $k=>$v) {
$users[$v['id']] = $v;
}
?>
<section id="main">
<h2>Search members</h2>
<table>
<tr>
<td></td>
<td>User</td>
<td>Gender</td>
<td>Name</td>
<td>Title</td>
<td>Location</td>
<td>Age</td>
<td>School</td>
</tr>
<?php foreach ($users as $member) : ?>
<tr>
<td><img src="<?=base_url()?>images/users/thumbs/<?=$member->user_pic;?>" alt=""></td>
<td><?php echo $member->username;?></td>
<td><?php echo $member->gender;?></td>
<td><?php echo $member->first_name; ?> <?php echo $member->last_name; ?></td>
<td><?php echo $member->title_1; ?> / <?php echo $member->title_2; ?> / <?php echo $member->title_3; ?></td>
<td><?php echo $member->counties; ?> i <?php echo $member->municipalities; ?></td>
<td><?php echo $member->birthday;?></td>
<td>
<?php foreach ($group_cv[$member['id']] as $cv) : ?>
<?php echo $cv->school; ?>
<?php endforeach; ?>
</td>
</tr>
<?php endforeach; ?>
</table>