how to display contents from another table (codeigniter)? - php

Question

I want to do crud on my page and I have to get content from another table and display it in a select tag. my plan was to make an update page wherein it will get the data from another table to display (in this case the category_name, cat_id was the foreign key at the menu table).
I already tried to join because that's what other forums have said but I think I was wrong.
help would really be appreciated.
this is my model:
function inputMenuToUpdate($menu_id){
$this->db->select('cat_id, category.category_id, category.category_name AS category_name');
$this->db->from('menu');
$this->db->join('category', 'menu.cat_id = category.category_id');
$this->db->where('menu_id',$menu_id);
return $query->row();
}
this is my controller:
public function inputToUpdate($menu_id){
$data['row'] = $this->adminMenuModel->inputMenuToUpdate($menu_id);
$this->load->view('adminEdit', $data);
}
this is my view:
<tbody>
<!-- $result is from the $data in CrudController-->
<?php foreach($result as $row){?>
<tr>
<td><?php echo $row->menu_name; ?></td>
<td><?php echo $row->category_name; ?></td>
<td><?php echo $row->price; ?></td>
<td><?php echo $row->description; ?> </td>
<td>
<i class="fa fa-pencil"></i>
</td>
</tr>
<?php } ?>
</tbody>
and this is my update page:
<div class="container" style="width: 40rem;">
<form method="POST" action="<?php echo site_url('adminMenuController/update'); ?> / <?php echo $row->category_id; ?>">
<button type="button" class="btn btn-link"> Go Back </button>
<h1> UPDATE MENU </h1>
<div class="border-bottom"></div>
<br>
<br>
<label for="upMName">New Drink Name</label>
<input type="text" name="mn" class="form-control" id="upMName" value="<?php echo $row->menu_name ?>"></input>
<!-- <label for="cat"> Category </label>
<select id="cat" class="form-control">
<option> <?php echo $row->category_name; ?> </option>
</select> -->
<label for="upPrice">New Price</label>
<input type="number" name="price" class="form-control" id="upPrice" value="<?php echo $row->price ?>"> </input>
<label for="updesc">New Description </label>
<input type="text" name="desc" class="form-control" id="updesc" value="<?php echo $row->description ?>"> </input>
<br>
<button type="submit" class="btn btn-info"> Update </button>
<button type="reset" class="btn btn-danger"> Cancel </button>
</form>
</div>