error in my view file on calling a method from model - php

Question

<div class="collapse navbar-collapse" id="navbar-collapse-1">
<ul class="nav navbar-nav">
<?php
$this->load->model('cms_model');
if (isset($article_data)) {
} else {
$article_data = $this->cms_model->get_end_user_cms_menu(); (this line gives error)
}
foreach ($article_data as $row) { ?>
<li class="dropdown"> <a href='<?php echo site_url('endusers/end_cms_controller/cms_type_selected?type_id=' . $row->type_id) ?>'>
<?php echo $row->type_name; ?>
</a> </li>
<?php } ?>
</ul>
<div class="nav-search-wrap">
<input class="txt-search" type="text" name="search" placeholder="Search">
</div>
</div><!-- /.navbar-collapse -->
This is the code from my view file it givs the error on line number i highlighted. The error is " Fatal error: Call to a member function get_end_user_cms_menu() on a non-object in E:\xampp\htdocs\Santulan\application\views\endusers\header.php on line 158"

Answer 1

About the other problem: The issue was inside your controller. I post the corrected version with explanatory comments:
public function index(){
$str=$this->input->post('search');
$search_id=$this->cms_model->search_tag_id($str);
//echo $id= $search_id; -> you cannot echo $search_id becouse it's an array: $query->result() from search_tag_id() model function.
//$query->result() is allways an array
//FOR DEBUGGING: when you want to see inside $query->result(), use: echo '<pre>'.print_r($query->result(), true).'</pre>';
// instead you use:
$id = $search_id->article_id;
$search_data['article']=$this->cms_model->search_article($id);// function for search article
if($search_data){
$this->load->view('endusers/cms_view', $search_data); // this is ok, if you call for $article and $article_image inside the view
}else{
echo "No result found";
}
}

Answer 2

First, you must call $this->load->model('cms_model'); in your controller, not in your view.
Then, in the controller also, not in your view, you could do:
if (!isset($article_data)) {
$article_data = $this->cms_model->get_end_user_cms_menu();
}
$data['list'] = '';
foreach ($article_data as $row){
$data['list'] .= "<li class=\"dropdown\"> $row->type_name </li>";
}
Then, also in your controller, when you load the view, add $data:
$this->load->view('your_viwe', $data);
And in your view:
<div class="collapse navbar-collapse" id="navbar-collapse-1">
<ul class="nav navbar-nav">
<?php echo $list;?>
</ul>
<div class="nav-search-wrap">
<input class="txt-search" type="text" name="search" placeholder="Search">
</div>
</div>
And your-re good to go.