I would like to give shot about how to populate data from Database in. In here I used Codeigniter  as PHP Framework, MySQL as DB and Jquery as JS Framework.
I have 1 table (t_unit) with 2 fields (id_unit, unit_name). some how in another form I would like to capture id_unit into another table, then I should populate them into another form, so here are the details
This is my Model
function fetch_unit() {
$this->db->select('id_unit, unit_name');
$records=$this->db->get('t_unit');
$data=array();
//$data[0] = 'SELECT';
foreach ($records->result() as $row)
{
$data[$row->id_unit] = $row->unit_name;
}
return ($data);
}
from above code, I will set id_unit as value and unit_name as display value.if we use Codeigniter as our framework then we should able to display dataset in view with very easy step.
here are the controller
$data['unit'] = $this->cdd_model->fetch_unit();
$data['title'] = 'Create CDD';
$this->load->view('home/index', $data);
then in your view you just use form_dropdown class to populate it
<div class="control-group">
<label class="control-label" for="cmpgn_unit" >Business Unit</label>
<div class="controls"> <?php echo form_dropdown('cmpgn_unit', $unit, 1,'id="cmpgn_bis_unit"'); ?>
</div>
</div>
Done!. you got data from DB into your select box.
we also able to populate it via jQuery like below (use same model like above, just modify lil bit your controller):
function fetch_unit() {
$unit = $this->cdd_model->fetch_unit();
echo json_encode($unit);
}
we use json to send parameter into view file. then from view file write down code like this:
<div class="control-group">
<label class="control-label" for="cmpgn_bis_unit" >Business Unit</label>
<div class="controls">
<select id="sUnit" name="cmpgn_unit"><option value="">Please Select</option></select>
</div>
</div>
and if you want to call via ajax then you do it like below to call data.
//Unit Select Box
$.post("co/ctrl_cdd/fetch_unit", function(data) {
var sel = $("#sUnit");
sel.empty();
$.each(data, function(i, item){
$("#sUnit").append(''+ item + '');
})
},"json");
its Done!!!, pls take a look the id ‘#sUnit, as this id will get data from DB via ajax. Enjoy the code.
Rgds,
Afif
IniAfif 