Cannot retrieve data from database to drop down list - php

Question

I am new to codeigniter and I'm having a problem in retrieving data from database to drop down list. Can anyone help me with this?
My View:
<?php echo form_open('form/myform'); ?>
<select id="addother" >
<option value="none" selected="selected"> ------Select School------ </option>
<?php foreach($groups as $row) {
echo '<option value="'.$row->id.'">'.$row->name.'</option>';
} ?>
</select>
<div id="addother">
<?php echo form_input(array('id'=>'addother_input', 'name'=>'school', 'placeholder'=>'Enter name of school...')); ?>
<input type="submit" id="add" name="submit" value="+" />
</div>
<?php echo form_close(); ?>
My Controller:
function myform(){
$data['title'] = "myform";
$this->load->library('form_validation');
$this->load->model('school_model');
if($this->input->post()){
$sdata['school'] = $this->input->post('school');
$this->school_model->addItem($sdata);
}
$data['groups'] = $this->school_model->getAll();
$this->load->view('myform', $data);
}
My Model:
function getAll() {
$query = $this->db->get('tblschool');
return $query->result();
}
function addItem($sdata){
return $this->db->insert('tblschool', $sdata);
}
I can't retrieve data from database into the drop down list. I would really appreciate your help. Thanks!

Answer 1

i think that you could be persist the select value when the form is submitted in the "myForm" method. So, in the same method, retrieve the new group values. Try this:
function myform(){
$data['title'] = "myform";
$this->load->library('form_validation');
$this->load->model('school_model');
if ($this->form_validation->run() == TRUE){
$sdata['school'] = $this->input->post('school');
$this->school_model->addItem($sdata);
}
$data['groups'] = $this->school_model->getAll();
$this->load->view('myform', $data);
}