function uc_atctweaks_form_alter in UC Add to Cart Tweaks 6

Same name and namespace in other branches

1. 7 uc_atctweaks.module \uc_atctweaks_form_alter()

Implementation of hook_form_alter().

Summary of alterations: 1) Alters the product feature add form to restrict multiple Add to Cart Tweak features from being added to a single product. 2) Alters the add to cart form for variable priced products. 3) Alter the product class form to set default add to cart tweaks.

File

./uc_atctweaks.module, line 18

Defines a product feature to tweak the add to cart form behavior.

Code

function uc_atctweaks_form_alter(&$form, &$form_state, $form_id) {

  // 1) Alter the product feature add form.
  if ($form_id == 'uc_product_feature_add_form') {

    // If an add to cart tweak has already been added to this product...
    if (db_result(db_query("SELECT COUNT(*) FROM {uc_product_features} WHERE nid = %d AND fid = '%s'", arg(1), 'atctweaks'))) {

      // Remove Add to Cart Tweak from the available list of features to add.
      unset($form['feature']['#options']['atctweaks']);
    }
  }

  // 2) Alters the add to cart form for variable priced products.
  if (strpos($form_id, 'uc_product_add_to_cart_form_') === 0) {
    $data = uc_atctweaks_product_load($form['nid']['#value']);
    if ($data) {
      $form['atctweaks_data'] = array(
        '#type' => 'value',
        '#value' => $data,
      );
      $form['#submit'] = array_merge(array(
        'uc_atctweaks_add_to_cart_pre_submit',
      ), $form['#submit']);
      $form['#submit'][] = 'uc_atctweaks_add_to_cart_post_submit';
    }
  }

  // 3) Alter the product class form to set default add to cart tweaks.
  if ($form_id == 'uc_product_class_form') {
    $data = variable_get('ucatc_class_def_' . $form['pcid']['#value'], array());
    if (!empty($data)) {
      $data = (object) unserialize($data);
    }
    else {
      $data = FALSE;
    }
    $form['atctweaks'] = array(
      '#type' => 'fieldset',
      '#title' => t('Default Add to Cart Tweaks'),
      '#collapsible' => TRUE,
      '#collapsed' => TRUE,
      '#weight' => 5,
    );
    $form['atctweaks']['default_atctweaks'] = array(
      '#type' => 'checkbox',
      '#title' => t('Check this box to add default Add to Cart Tweaks to every product of this class using these settings.'),
      '#default_value' => $data === FALSE ? FALSE : TRUE,
    );
    $form['atctweaks'] += _uc_atctweaks_feature_form($data);
    $form['#submit'][] = 'uc_atctweaks_product_class_submit';
    $form['submit']['#weight'] = 10;
  }
}