Plugins

Plugins in MV are classes for performing tasks that do not require managing a table in the database, as is the case with models.

Basic rules

1. The plugin class must inherit from the Plugin class.
2. The file must have a name like plugin_name.plugin.php and be located in the plugins folder in the root of the project.
3. To activate a plugin, its class must be specified in the config/plugins.php file.
4. The plugin object is available in the $mv -> PluginName object.
5. The plugin is instantiated before the template is selected and included, immediately upon the creation of the $mv object, if the $auto_start property value is set.

//File plugins/cart.plugin.php

class Cart extends Plugin
{
    //If the plugin needs to be started before the template file is included
    protected $auto_start = true;
    
    private $items = [];
    
    private $products_model;
    
    public function __construct()
    {
        //Unlike models, the constructor can be supplemented
        parent :: __construct();
        
        //Product model object
        $this -> products_model = new Products(); 
    }
    
    public function addItemToCart($id, $quantity)
    {
        ...
    }
}

//Plugin activation in the config/plugins.php file
$mvActivePlugins = [..., 'Cart'];

//Example of using the plugin in a template file
$mv -> cart -> addItemToCart(56, 2);

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