<?php

/**
 * @file
 * Views handler: Product weight field.
 */

/**
 * Returns a formatted weight value to display in the View.
 */
class uc_product_handler_field_weight extends views_handler_field_numeric {

  /**
   * Overrides views_handler::option_definition().
   */
  function option_definition() {
    $options = parent::option_definition();

    $options['format'] = array('default' => 'uc_weight');

    return $options;
  }

  /**
   * Overrides views_handler::options_form().
   */
  function options_form(&$form, &$form_state) {
    parent::options_form($form, $form_state);

    $options = $this->options;

    $form['format'] =  array(
      '#title' => t('Format'),
      '#type' => 'radios',
      '#options' => array(
        'uc_weight' => t('Ubercart weight'),
        'numeric' => t('Numeric'),
      ),
      '#default_value' => $options['format'],
      '#weight' => 1,
    );

    // Change weight and dependency of the previous field on the parent numeric ones
    $weight = 2;
    foreach (array('set_precision', 'precision', 'decimal', 'separator', 'prefix', 'suffix') as $field) {
      if (isset($form[$field]['#dependency'])) {
        $form[$field]['#dependency'] += array('radio:options[format]' => array('numeric'));
        $form[$field]['#dependency_count'] = count($form[$field]['#dependency']);
      }
      else {
        $form[$field]['#dependency'] = array('radio:options[format]' => array('numeric'));
      }

      $form[$field]['#weight'] = ++$weight;
    }
  }

  /**
   * Overrides views_handler_field::render().
   */
  function render($values) {
    if ($this->options['format'] == 'numeric') {
      return parent::render($values);
    }

    if ($this->options['format'] == 'uc_weight') {
      return uc_weight_format($values->{$this->field_alias}, $values->{$this->aliases['weight_units']});
    }
  }

}
