if ($form_id == 'buy_offer_node_form' || $form_id == 'sell_offer_node_form') {
        if (!user_is_logged_in()) {
            drupal_set_message(t('Zaloguj się, aby móc dodać ogłoszenie.'), 'warning', FALSE);
            drupal_goto('/user/login', array('query' => array('destination' => current_path())));
            die;
        }

        $placeholder = t('Oferuję');

        if ($form_id == 'buy_offer_node_form') {
            $placeholder = t('Szukam');
        }

        if (!empty($form['nid']['#value'])) {
            $submit_title = t('Zapisz');
        } else {
            $submit_title = t('Dodaj ogłoszenie');
        }

        $form['actions']['submit']['#value'] = $submit_title;
        $form['title_field']['und'][0]['value']['#attributes']['placeholder'] = $placeholder;
        $form['title_field']['und'][0]['value']['#maxlength'] = 75;
        $form['title_field']['pl'][0]['value']['#maxlength'] = 75;

        if ($form['nid']['#value'] != null) {
            $form['#groups']['group_offer_1']->alabel = t('Edytuj ogłoszenie');
        }

        if ($user->uid != 1) {
            unset($form['actions']['delete']);
        }

        $nid = $form['nid']['#value'];

        $query = drupal_get_query_parameters();

        $n = entity_metadata_wrapper('node', $nid);

        $form['field_sell_offer_category']['und'][0]['tid']['#ajax'] = array(
          'callback' => 'offer_management_category_callback',
          'wrapper' => 'additional-filters-wrapper',
          'method' => 'replace',
          'effect' => 'fade',
        );

        $form['field_sell_offer_additional_data']['#prefix'] = '<div id="additional-filters-wrapper">';
        $form['field_sell_offer_additional_data']['#suffix'] = '</div>';

        $category = $form['field_sell_offer_category']['und'][0]['tid']['#default_value'];

        if (isset($form_state['input']) && isset($form_state['input']['field_sell_offer_category'])) {
            $category = $form_state['input']['field_sell_offer_category']['und'][0]['tid'];
        }

        if (isset($form_state['triggering_element']) && isset($form_state['triggering_element']['#field_name']) && $form_state['triggering_element']['#field_name'] == 'field_sell_offer_category') {
            foreach ($form['field_sell_offer_additional_data']['und'] as $key => $value) {
                if (is_numeric($key)) {
                    if ($key != 0) {
                        unset($form['field_sell_offer_additional_data']['und'][$key]);
                        unset($form_state['values']['field_sell_offer_additional_data']['und'][$key]);
                        unset($form_state['input']['field_sell_offer_additional_data']['und'][$key]);
                    } else {
                        $form['field_sell_offer_additional_data']['und'][$key]['field_soad_type']['und']['#default_value'] = 0;
                        $form_state['values']['field_sell_offer_additional_data']['und'][$key]['field_soad_type']['und'] = 0;
                        $form_state['input']['field_sell_offer_additional_data']['und'][$key]['field_soad_type']['und'] = 0;
                        $form['field_sell_offer_additional_data']['und'][$key]['field_soad_list']['und']['#default_value'] = 0;
                        $form_state['values']['field_sell_offer_additional_data']['und'][$key]['field_soad_list']['und'] = 0;
                        $form_state['input']['field_sell_offer_additional_data']['und'][$key]['field_soad_list']['und'] = 0;
                    }
                }
            }
        }

        foreach ($form['field_sell_offer_additional_data']['und'] as $key => $value) {
            if (is_numeric($key)) {
                $form['field_sell_offer_additional_data']['und'][$key]['field_soad_type']['#prefix'] = '<div id="soad-values-' . $key . '">';
                $form['field_sell_offer_additional_data']['und'][$key]['field_soad_list']['#suffix'] = '</div>';

                $form['field_sell_offer_additional_data']['und'][$key]['field_soad_type']['und']['#ajax'] = array(
                  'callback' => 'offer_management_soad_callback',
                  'wrapper' => 'soad-values-' . $key . '',
                  'method' => 'replace',
                  'effect' => 'fade',
                );
            }
        }

        if ((isset($form_state['triggering_element']) && isset($form_state['triggering_element']['#field_name']) && $form_state['triggering_element']['#field_name'] == 'field_sell_offer_category') || !isset($form_state['triggering_element']) || $category !== null) {
            $tids = _offer_management_get_parents($category);

            $available_cats = array();
            $available_values = array();
            $categories_names = array();

            foreach ($tids as $key => $value) {
                if (is_numeric($value)) {
                    $t = entity_metadata_wrapper('taxonomy_term', $value);
                    $temp = $t->value();

                    if ($temp) {
                        foreach ($t->field_category_fc_secondary as $key2 => $value2) {
                            $tid = $value2->field_cfc_secondary_name->raw();

                            if ($tid) {
                                $available_cats[] = $tid;
                                $available_values[$tid] = $value2->field_cfc_secondary_values->raw();
                                $categories_names[$tid] = $value2->field_cfc_secondary_name->name->value();
                            }
                        }
                    }
                }
            }
            $available_cats = array_unique($available_cats);

            $model = $form['field_sell_offer_additional_data']['und'][0];
            $model['field_soad_number']['und'][0]['value']['#default_value'] = null;
            $model['field_soad_text']['und'][0]['value']['#default_value'] = null;
            $model['field_soad_list']['und']['#default_value'] = null;
            $model['field_soad_type']['und']['#default_value'] = null;

            unset($form['field_sell_offer_additional_data']['und']['add_more']);

            if (count($available_cats) == 0 || $available_cats[0] == null) {
                // unset($form['field_sell_offer_additional_data']);
                // $form['field_sell_offer_additional_data']['#markup'] = '<div>' . t('Brak opcji do wyboru') . '</div>';
                foreach ($form['field_sell_offer_additional_data']['und'] as $key => $value) {
                    if (is_numeric($key)) {
                        unset($form['field_sell_offer_additional_data']['und'][$key]);
                    }
                }

                $form['field_sell_offer_additional_data']['und'] = array('#markup' => t('Brak parametrów dla wybranej kategorii.'));
            }
            foreach ($available_cats as $key => $value) {
                if (isset($form['field_sell_offer_additional_data']['und'][0]['field_soad_type']['und']['#options'][$value])) {
                    if (!isset($form['field_sell_offer_additional_data']['und'][$key])) {
                        $form['field_sell_offer_additional_data']['und'][$key] = $model;
                        $form['field_sell_offer_additional_data']['und'][$key]['#delta'] = $key;
                        $form['field_sell_offer_additional_data']['und'][$key]['#parents'][2] = $key;
                        $form['field_sell_offer_additional_data']['und'][$key]['field_soad_list']['und']['#delta'] = $key;
                        $form['field_sell_offer_additional_data']['und'][$key]['field_soad_list']['und']['#parents'][2] = $key;

                        // $form['field_sell_offer_additional_data']['und'][$key]['#suffix'] = array('#markup' => '.');

                        $form_state['input']['field_sell_offer_additional_data']['und'][$key] = $form_state['input']['field_sell_offer_additional_data']['und'][0];
                        $form_state['input']['field_sell_offer_additional_data']['und'][$key]['field_soad_number']['und'][0]['value'] = null;
                        $form_state['input']['field_sell_offer_additional_data']['und'][$key]['field_soad_text']['und'][0]['value'] = null;
                        $form_state['input']['field_sell_offer_additional_data']['und'][$key]['field_soad_list']['und'] = null;
                        $form_state['input']['field_sell_offer_additional_data']['und'][$key]['field_soad_type']['und'] = null;

                    }

                    $form['field_sell_offer_additional_data']['und'][$key]['field_soad_type']['und']['#default_value'] = $value;
                    $form['field_sell_offer_additional_data']['und'][$key]['field_soad_type']['und']['#type'] = 'hidden';

                    $form['field_sell_offer_additional_data']['und'][$key]['field_soad_type']['#disabled'] = true;
                    unset($form['field_sell_offer_additional_data']['und'][$key]['remove_button']);
                    // foreach ($form['field_sell_offer_additional_data']['und'][$key]['field_soad_type']['und']['#options'] as $key2 => $value2) {
                    //  if ($key2 != $value) {
                    //      unset($form['field_sell_offer_additional_data']['und'][$key]['field_soad_type']['und']['#options'][$key2]);
                    //  }
                    // }

                    // if (!isset($form_state['input']['field_sell_offer_additional_data']['und'][$key])) {
                    //  $form_state['input']['field_sell_offer_additional_data']['und'][$key] = array(
                    //      'field_soad_number' => array('und' => array(array('value' => null))),
                    //      'field_soad_text' => array('und' => array(array('value' => null))),
                    //      'field_soad_list' => array('und' => null),
                    //      'field_soad_type' => array('und' => null)
                    //  );
                    // }
                    _offer_management_hide_fields($form['field_sell_offer_additional_data']['und'][$key], $form_state['input']['field_sell_offer_additional_data']['und'][$key], $value, $available_values, $categories_names[$value]);

                }
            }
        }

        if (is_numeric($nid) && $user->uid != 1) {
            $n = entity_metadata_wrapper('node', $nid);

            if ($n->field_offer_archived->value()) {
                drupal_set_message(t('Ta oferta została zakończona, nie można jej edytować.'), 'status', FALSE);
                drupal_goto('/node/' . $nid);
            }
        }
    }

    if ($form_id == 'commerce_cart_add_to_cart_form_1') {
        $nid = arg(1);

        $page = arg(0);

        if ($page == 'node') {
            $n = entity_metadata_wrapper('node', $nid);

            if ($n->field_offer_archived->value()) {
                drupal_set_message(t('Ta oferta została zakończona.'), 'status', FALSE);
                unset($form['submit']);
            }
        }
    }