Edit Pages - Invalid argument supplied for foreach() - codeigniter

Question

I wonder why I still having this error message appearing.
A PHP Error was encountered
Severity: Warning
Message: Invalid argument supplied for foreach()
Filename: views/editpages.php
Line Number: 48
Backtrace:
File: C:\Program Files (x86)\EasyPHP-DevServer-14.1VC9\data\localweb\masterlinkci2\application\admin\views\editpages.php
Line: 48
Function: _error_handler
controllers/Cpages.php
public function editpagesupdate() {
$data['pagessuccess'] = '';
$pages_id = $this->uri->segment(3);
$data['pages'] = $this->Mpages->update_pages($pages_id);
$this->load->view('editpages', $data);
}
models/Mpages.php
public function update_pages($pages_id)
{
$data = array(
'pages_name' => $this->input->post('pages_name'),
'create_date' => $this->input->post('create_date'),
'pages_order' => $this->input->post('pages_order'),
'pages_content' => $this->input->post('pages_content')
);
$this->db->where('pages_id', $pages_id);
$query = $this->db->update('pages', $data);
//return $query->result_array();
return $query;
}
views/editpages.php
<div class="widget-box">
<div class="widget-title"><h5>Pages</h5></div>
<div class="widget-content">
<?php echo form_open('cpages/editpagesupdate'); ?>
<table border="0" style="width: 100%; height: 90px;">
<tr>
<td>Pages Name</td>
<td><input type="text" name="pages_name" value="<?php echo $pages_item['pages_name']; ?>"></td>
</tr>
<tr>
<td>Create Date</td>
<td><input type="text" name="create_date" value="<?php echo $pages_item['create_date']; ?>"></td>
</tr>
<tr>
<td>Order</td>
<td><input type="text" name="pages_order" value="<?php echo $pages_item['pages_order']; ?>"></td>
</tr>
<tr>
<td>View Content</td>
<td><textarea rows="3" cols="20" name="pages_content"><?php echo $pages_item['pages_content']; ?></textarea></td>
</tr>
<tr>
<td></td>
<td><input type="submit" class="edit" name="submit" value="SUBMIT"></td>
</tr>
</table>
</div>
</div>
<?php endforeach; ?>

Answer 1

controllers/Cpages.php
public function editpagesupdate() {
$data['pagessuccess'] = '';
$pages_id = $this->uri->segment(3);
$update = $this->Mpages->update_pages($pages_id);
$data = array();
/* get updated pages here */
if($update){
$data['pages'] = $this->Mpages->get_pages();
}
$this->load->view('editpages', $data);
}
models/Mpages.php
public function get_pages()
{
$query = $this->db->get('pages');
return $query->result_array();
}
views/editpages.php
<div class="widget-box">
<div class="widget-title"><h5>Pages</h5></div>
<div class="widget-content">
<?php echo form_open('cpages/editpagesupdate'); ?>
<table border="0" style="width: 100%; height: 90px;">
<?php foreach($pages as $pages_item) : ?>
<tr>
<td>Pages Name</td>
<td><input type="text" name="pages_name" value="<?php echo $pages_item['pages_name']; ?>"></td>
</tr>
<tr>
<td>Create Date</td>
<td><input type="text" name="create_date" value="<?php echo $pages_item['create_date']; ?>"></td>
</tr>
<tr>
<td>Order</td>
<td><input type="text" name="pages_order" value="<?php echo $pages_item['pages_order']; ?>"></td>
</tr>
<tr>
<td>View Content</td>
<td><textarea rows="3" cols="20" name="pages_content"><?php echo $pages_item['pages_content']; ?></textarea></td>
</tr>
<?php endforeach; ?>
<tr>
<td></td>
<td><input type="submit" class="edit" name="submit" value="SUBMIT"></td>
</tr>
</table>
</div>
</div>