Untitled

<?php

/**
* Implementation of hook_form_alter().
*/

function commerce_dedicatoria_form_alter(&$form, &$form_state, $form_id) {
        if ($form_id == 'commerce_checkout_form_checkout') {
                drupal_set_message("estoy en commerce_dedicatoria_form_alter ");
                /*$form['buttons']['continue']['#submit'][] = 'funcion que llame añada el line item';*/
                dsm($form_id);  // print form ID to messages
                dsm($form);
  }
}


/**
 * Implements hook_commerce_line_item_type_info().
 */
function commerce_dedicatoria_commerce_line_item_type_info() {
        drupal_set_message("estoy en commerce_dedicatoria_commerce_line_item_type_info ");
  $line_item_types['dedicatoria'] = array(
    'name' => t('Dedicatoria personalizada'),
    'description' => t('Dedicatoria personalizada que los usuario spodrán seleccionale en el proceso de compra.'),
    'product' => FALSE,

    // Here you can change the text in the submit button in the order admin
    // line item add area.
    'add_form_submit_value' => t('Añadir dedicatoria'),

    'callbacks' => array(
      'configuration' => 'commerce_dedicatoria_configuration',
      'title' => 'commerce_dedicatoria_title',
      'add_form' => 'commerce_dedicatoria_add_form',
      'add_form_submit' => 'commerce_dedicatoria_add_form_submit',
    ),
  );

  return $line_item_types;
}

/**
 * Configure the line item with additional fields or whatever.
 *
 * This function is called by the line item module when it is enabled or this
 * module is enabled. It invokes this function using the configuration_callback
 * as specified above. Other modules defining product line item types should
 * use this function to ensure their types have the required fields.
 *
 * @param $line_item_type
 *   The info array of the line item type being configured.
 *
 * @see commerce_product_line_item_configuration()
 */
function commerce_dedicatoria_configuration($line_item_type) {
  $type = $line_item_type['type'];

  // Here we could add fields or other configuration.

}

/**
 * Returns a title for this line item.
 */

/* título que aparece en la linea de factura*/

function commerce_dedicatoria_title($line_item) {
  return(t('Dedicatoria personalizada'));
}

/**
 * Returns the elements necessary to add a product line item through a line item
 * manager widget (on the order form).
 */
function commerce_dedicatoria_add_form($element, &$form_state) {
drupal_set_message("estoy en commerce_dedicatoria_add_form ");
        $form = array();

  return $form;
}

/**
 * Adds the selected product information to a line item added via a line item
 *   manager widget (on the admin order page).
 *
 * @param $line_item
 *   The newly created line item object.
 * @param $element
 *   The array representing the widget form element.
 * @param $form_state
 *   The present state of the form upon the latest submission.
 * @param $form
 *   The actual form array.
 *
 * @return
 *   NULL if all is well or an error message if something goes wrong.
 */
function commerce_dedicatoria_add_form_submit(&$line_item, $element, &$form_state, $form) {
drupal_set_message("estoy en commerce_dedicatoria_add_form_submit ");
        $line_item->line_item_label = t('Dedicatoria');

  // Wrap the line item and product to easily set field information.
  $line_item_wrapper = entity_metadata_wrapper('commerce_line_item', $line_item);

  // Provide a default price.
  $amount = variable_get('dedicatoria_amount', 150);
  $currency_code = variable_get('dedicatoria_currency', 'EUR');

  $line_item->commerce_unit_price = array('und' => array(
    '0' => array('amount' => $amount, 'currency_code' => $currency_code)
  ));

  if (!is_null($line_item_wrapper->commerce_unit_price->value())) {
    // Add the base price to the components array.
    if (!commerce_price_component_load($line_item_wrapper->commerce_unit_price->value(), 'base_price')) {
      $line_item_wrapper->commerce_unit_price->data = commerce_price_component_add(
        $line_item_wrapper->commerce_unit_price->value(),
        'base_price',
        $line_item_wrapper->commerce_unit_price->value(),
        TRUE
      );
    }
  }

}