How to add new module to opencart administration?

Question

I want to add a sub menu item \"Locations\" to \"Catalog\" menu item in opencart administration. On selecting locations, I want to see my own location management view page which

Answer 1

I have already implemented your concept in my opencart project.

Notes:

1) by default in product adding dashboard page have a field to enter product location you fill product location there and follow my points

2) open catalog > model > category.php add this code

function getCategoryLoction($category_id) {
    $sql = "select p.location,count(p.location) as locCount from " . DB_PREFIX . "product p inner join " . DB_PREFIX . "product_to_category p2c on(p.product_id=p2c.product_id) where p2c.category_id=$category_id group by p.location";
    $query = $this->db->query($sql);
    return $query->rows;
}

3) open catalog > controller>module > category.php add this code

/* location based search starts here */
$incomingCatId  = ($this->data['category_id']!= '')?$this->data['category_id']:'0';
$locations  =   $this->model_catalog_category->getCategoryLoction($incomingCatId); 

foreach($locations as $loc):
    $this->data['locations'][] = array(
        'location' => $loc['location'],
        'count' =>  $loc['locCount'],
        'href' => $this->url->link('product/category', 'path=' . $incomingCatId.'&loc='.$loc['location'].'')
);
endforeach;    
/* location based search ends here */

4) open catalog > view >theme >default >template>module > category.tpl category add this code

    

        
Location
    
    

         
         
         
         
  ()  

         
         
         
         No Locations mentioned
             
    
       

5) important in admin side activate category module and save it choose