get data from table and fill combo box depending on select value Codeigniter
Question
Suppose there is a table FRUITS:
mysql> select * from FRUITS;
+---------+-----------+
| fruitid | fruitname |
+---------+-----------+
| 1 | Orange |
| 2 | Apple |
| 3 | Pear |
| 4 | Banana |
+---------+-----------+
4 rows in set (0.02 sec)
I have a view file that contains a form.
Here i have a list where user selects which food he wants, so in the case user selects "fruits" I get data from table FRUITS and fill a combo box....
After the user fills the form, some tables will be updated. During the process I need to consult data from FRUITS table and fill a combo box when user selects fruits in the list of food....
If I were not using Codeigniter I could use
<?php
$conn = mysql_connect('localhost','yourUsernameHere','yourPasswordHere');
mysql_select_db('testdb',$conn);
$query = "select fruitid,fruitname from FRUITS order by fruitname";
$result = mysql_query($query,$conn);
$selectbox='<select name=\'fruit\'>';
while ($row = mysql_fetch_assoc($result)) {
$selectbox.='<option value=\"' . $row['fruitid'] . '\">' . $row['fruitname'] . '</option>';
}
$selectbox.='</select>';
mysql_free_result($result);
echo $selectbox;
?>
to fill a combo box inside the form and then capture that value and send it to insert data to other tables...
How could I do this on Codeigniter, as the queries must be done in controller file...?
update
let us say I have
model
class Fruits extends CI_Model {
function __construct()
{
parent::__construct();
}
function what_fruits()
{
$this->db->select('fruitname');
$this->db->from('FRUITS');
$q = $this->db->get('');
if($q->num_rows() > 0)
{
$data = array();
foreach($q->result() as $row)
{
$data=$row;
}
return $data;
}
}
}
Controller
class main_form_view extends CI_Controller
{
function __construct()
{
parent::__construct();
}
public function index()
{
$this->load->view('main_form_view');
}
public function result()
{
$this->load->model('Fruits');
$data['fruitname'] = $this->Fruits->what_fruits();
}
}
views main_form_view
<html>
<head></head>
<body>
<form method="post">
<select name="food" id="food" onchange="fill_cb_food(this.value);" >
<option value="0">fruits</option>
<option value="1">other1</option>
<option value="2">other2</option>
</select>
//response of ajax call display here.???
<div class="selectbox" id="id_fruits">
<select name="fruits" id="fruits">
<option value="">--Choose fruit--</option>
</select>
</div>
</form>
</body>
</html>
function fill_cb_food(id)
{
$.ajax({
type: "POST",
url: "main_form_view/result.php,
data: "fruit=" + fruitname,
success: function(html){
$("#id_fruits").html(html);
}
});
}
So I want to get a combo box with
Orange
Apple
Pear
Banana
when user selects Fruits option in the form...
2 answers
solution1
2 ACCPTED 2013-03-07 07:46:57
You can use ajax post to fetch data runtime and fill into your combo box.. like:
$.ajax({
url: 'http://url_to_fetch_fruit_table_data/',
type: "POST",
data:data,
success: function(response) {
$("select").html(response);
}
});
or you can also loop and fill using foraeach .
solution2
1 2016-06-07 04:10:56
In the model you select any column using '*'.
You have to pass the data to the view-file:
class main_form_view extends CI_Controller
{
public function index()
{
$this->load->model('Fruits');
$data['fruits'] = $this->Fruits->what_fruits();
$this->load->view('main_form_view', $data);
}
}
then you can do in the view-file:
<?php foreach($fruits as $fruit): ?>
<option value="<?php print $fruit['fruitid'] ?>"><?php print $fruit['fruitname']</option>
<?php endforeach; ?>
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