Programmatically: How to create custom Magento product types

Step 1: Create a new module

Create a new directory in app/code/local with your company name and module name, for example MyCompany/MyCustomProductType.

Step 2: Create the module configuration file

Create a file named config.xml in the module directory with the following content:

		
	
    
        
            true
            local
        
    
	
	

Step 3: Create the product type class

Create a new file named Product/Type/MyCustomProductType.php in the module directory with the following content:

	class MyCompany_MyCustomProductType_Model_Product_Type_MyCustomProductType extends Mage_Catalog_Model_Product_Type_Abstract
  {
    protected function _construct()
    {
        parent::_construct();
        $this->_label = 'My Custom Product Type';
    }

    public function getCode()
    {
        return 'mycustomproducttype';
    }
  }
	

Step 4: Create the product type model

Create a new file named Product/Model/Product/Mycustomproducttype.php in the module directory with the following content:

	class MyCompany_MyCustomProductType_Model_Product_MyCustomProductType extends Mage_Catalog_Model_Product_Abstract
  {
    public function getAvailabilityMessage($isInStock = true)
    {
        return 'This is a custom availability message';
    }
  }
	

Step 5: Register the product type

In your module's etc/config.xml file, add the following code:

	
    
    
       
          
            
              MyCompany_MyCustomProductType_Model_Product_MyCustomProductType
            
           
       
    
	
	

Step 6: Add the product type to the product form

In your module's etc/config.xml file, add the following code:

Step 7: Create the template

Create a new file named form.phtml in your module's view/frontend/templates/mycompany/mycustomproducttype directory with the following content:

		

		This is a custom form field for my custom product type