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Técnicamente, PrestaShop cambia la bandera de eliminado del transportista a 1 y crear uno nuevo.
Por eso, cuando edita una un transportista a través de la pestaña "Transportista" en su back office, su id cambia.
Por lo tanto, debe conectar con un hook el módulo con el fin de actualizar el Id del transportista cuando este cambia.
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/*
** Front Methods
**
** If you set the variable need_range to true when you created your carrier
** in the install() method, the method called up by the Cart class
** will be getOrderShippingCost()
** Otherwise the method called up will be getOrderShippingCostExternal
**
** The $params variable contains the basket, the customer and their addresses
** The $shipping_cost variable contains the cost calculated
** according to the price ranges set
** for the carrier in the backoffice
**
*/
public function getOrderShippingCost($params, $shipping_cost)
{
// This example returns the shipping fee with the additional cost
// but you can call up a webservice or perform the calculation you want
// before returning the final shipping fee
if ($this->id_carrier == (int)(Configuration::get('MYCARRIER1_CARRIER_ID')) &&
Configuration::get('MYCARRIER1_OVERCOST') > 1)
return (float)(Configuration::get('MYCARRIER1_OVERCOST'));
if ($this->id_carrier == (int)(Configuration::get('MYCARRIER2_CARRIER_ID')) &&
Configuration::get('MYCARRIER2_OVERCOST') > 1)
return (float)(Configuration::get('MYCARRIER2_OVERCOST'));
// If the carrier is not recognised, just return false
// and the carrier will not appear in the carrier list
return false;
}
public function getOrderShippingCostExternal($params)
{
// This example returns the additional cost
// but you can call up a webservice or perform the calculation you want
// before returning the final shipping fee
if ($this->id_carrier == (int)(Configuration::get('MYCARRIER1_CARRIER_ID')) &&
Configuration::get('MYCARRIER1_OVERCOST') > 1)
return (float)(Configuration::get('MYCARRIER1_OVERCOST'));
if ($this->id_carrier == (int)(Configuration::get('MYCARRIER2_CARRIER_ID')) &&
Configuration::get('MYCARRIER2_OVERCOST') > 1)
return (float)(Configuration::get('MYCARRIER2_OVERCOST'));
/ If the carrier is not recognised, just return false
// and the carrier will not appear in the carrier list
return false;
}
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Medidas adicionales
El ejemplo es muy sencillo, pero puede crear módulos más complejos mediante la asociación con servicios web, por ejemplo (como es el caso de los módulos UPS) o realizar un cálculo basado en el número de productos en su carrito.
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