Question

I was following the instruction to get the entire record from table, and load them into html table. this is the model

private $namatabel;

public function __construct() {
    parent::__construct();
    $namatabel='ms_kategori_material';
}

function read()
{        
   $sql = $this->db->get($this->namatabel);  

   if($sql->num_rows() > 0)
    {     
        foreach($sql->result() as $row)
        {  
            $data[] = $row;  
        }     
        return $data;  
    } 
    else 
    {  
        return null;  
    }  

}

then use the read() function on controller

public function __construct() {
    parent::__construct();
    $this->load->model('m_kategorimaterial');
}

function index()
{
    $data['c_row'] = $this->m_kategorimaterial->read();
//pass the c_row into the views  
    $this->load->view('v/vkategorimaterial', $data);  
}

to display them on the views

<?php  
$no = 1;   
foreach ($c_row as $row) { ?>  
    <tr id="row">  
        <td id="no"><?php echo $no;?></td>  
        <td id="judul"><?php echo $row->Kode_Kategori_Material_Jasa;?></td>  
        <td id="kategori"><?php echo $row->Nama_Material_Jasa;?></td>                 
    </tr>  
<?php  
    $no++;  
}  
?>  

but then I got an error saying, undefined variable c_row and invalid argument supplied foreach(). I thought I have sent the c_row variable through the c_kategorimaterial/index and copy pasting foreach statement. what went wrong ?

Answer 1

1)Check whether you are getting the data right by using print_r($data). If that went wrong,you are probably missing something in the query.

2)If you got the db data perfectly,then just change the name of returning array in your model.

function read()
{        
   $sql = $this->db->get('ms_kategori_material');  

   if($sql->num_rows() > 0)
    {     
        foreach($sql->result() as $row)
        {  
            $c_row[] = $row;  
        }     
        return $c_row;  //comment this return part while debugging
        // print_r($c_row);
        //exit;
    } 
    else 
    {  
        return null;  
    }  

}