SEO URL support in MVC component Joomla 3

For the catalog component, you need to organize beautiful links. I will describe with a living example what needs to be done for this. The article is written on the go. I am writing code, testing, if everything works, I am adding an article.

First you need to create router.php in the component folder (/components/com_catalog/router.php).

Add a function to it that will generate the url:

function catalogBuildRoute(&$query)
{
       $segments = array();
       if (isset($query['view']))
       {
                $segments[] = $query['view'];
                unset($query['view']);
       }
       if (isset($query['id']))
       {
                $segments[] = $query['id'];
                unset($query['id']);
       };
       return $segments;
}

The second function will parse url into its component parts:

function catalogParseRoute($segments)
{
       $vars = array();
       switch($segments[0])
       {
               case 'catalog':
                       $vars['view'] = 'catalog';
                       break;
               case 'item':
                       $vars['view'] = 'item';
                       $id = explode(':', $segments[1]);
                       $vars['id'] = (int) $id[0];
                       break;
       }
       return $vars;
}

Generating a URL in a component:

JRoute :: _ ('index.php? View = item & id ='. $ Row-> id);

Now the component understands links of the form / catalog / item / 1.

This is an example from the documentation. We modify it for a more interesting task.

It is required to substitute the URL prescribed by the user.
This url is stored in the directory table.

Add another function that will pull the element:

function getCatalogItemByRow($row, $value){
    $db = JFactory::getDbo();
    $query = $db->getQuery(true);
    $query->select('id, url');
    $query->from($db->quoteName('#__catalog'));
    $query->where($db->quoteName($row)." = ".$db->quote($value));
    $db->setQuery($query);
    return $db->loadRow();
}

And so now our parsing function will look like this:

function catalogParseRoute($segments)
{  
       $vars = array();
       $vars['view'] = 'catalog';
       if($segments[0]!="catalog"){
           $item = getCatalogItemByRow("url",$segments[0]);
           if(isset($item['1']) && $item['1']) {
               $vars['view'] = 'item';
               $vars['id'] = (int) $item['0'];
           }
       }
       return $vars;
}

When you click on the link / catalog / test_alias, the desired page opens.

The function for generating url has become like this:

function catalogBuildRoute(&$query)
{
       $segments = array();
        unset($query['view']);
       if (isset($query['id']))
       {   
           $id = (int) $query['id'];
           if($id){
                $item = getCatalogItemByRow("id",$id);    
                $segments[] = $item['1'];
                unset($query['id']);
           }
       }
       return $segments;
}

Now JRoute :: _ ('index.php? View = item & id = 1'); will give us the url / catalog / test_alias we need.

Thanks!