Restrict custom field to product variant

<?php // check if the products with the id XX or YY or ZZ are in the cart $found = false; foreach($cart->products as $product) { if(in_array($product->product_id, array(XX, YY, ZZ))) { $found = true; } } // if none of them are in the cart, remove the field AA from the array of fields to be displayed if(!$found) { foreach($cart->order_fields as $k => $field) { if($field->field_namekey == 'AA') { unset($cart->order_fields[$k]); break; } } } ?>

<?php /** * @package HikaShop for Joomla! * @version 5.1.5 * @author hikashop.com * @copyright (C) 2010-2025 HIKARI SOFTWARE. All rights reserved. * @license GNU/GPLv3 http://www.gnu.org/licenses/gpl-3.0.html */ defined('_JEXEC') or die('Restricted access'); $cart = $this->checkoutHelper->getCart(); if(!hikashop_level(2)) { $this->emptyBlocksCount++; return; } // Check wheather there is products 78 or 79 in cart $target_ids = array(78, 79); $found = false; if (!empty($cart->products) && is_array($cart->products)) { foreach ($cart->products as $product) { if (in_array((int)$product->product_id, $target_ids)) { $found = true; break; } } } $fields = null; if (!empty($cart->order_fields)) { $fields = hikashop_copy($cart->order_fields); } // If there are none of products 78 or 79 in cart we hide field "sleepwith" if (!$found && !empty($fields)) { foreach ($fields as $k => $field) { if (isset($field->field_namekey) && $field->field_namekey === 'sleepwith') { unset($fields[$k]); // Pašalina tik "sleepwith" lauką break; } } } // If there is 78 or 79 in cart, make "sleepwith" field reguired if ($found && !empty($fields)) { foreach ($fields as $k => $field) { if (isset($field->field_namekey) && $field->field_namekey === 'sleepwith') { $field->field_required = 1; // Padarome lauką privalomu break; } } } $labelcolumnclass = 'hkc-sm-4'; $inputcolumnclass = 'hkc-sm-8'; if(empty($this->ajax)) { ?> <div id="hikashop_checkout_fields_<?php echo $this->step; ?>_<?php echo $this->module_position; ?>" data-checkout-step="<?php echo $this->step; ?>" data-checkout-pos="<?php echo $this->module_position; ?>" class="hikashop_checkout_fields"> <?php } ?> <div class="hikashop_checkout_loading_elem"></div> <div class="hikashop_checkout_loading_spinner"></div> <?php $this->checkoutHelper->displayMessages('fields'); ?> <fieldset class="hkform-horizontal"> <?php if(!empty($fields)) { if(!empty($this->options['show_title'])) { ?> <legend><?php echo JText::_('ADDITIONAL_INFORMATION'); ?></legend> <?php } $after = array(); foreach($fields as $fieldName => $oneExtraField) { $oneExtraField->registration_page = @$this->registration_page; if(isset($_SESSION['hikashop_order_data']) && is_object($_SESSION['hikashop_order_data']) && isset($_SESSION['hikashop_order_data']->$fieldName) && !is_null($_SESSION['hikashop_order_data']->$fieldName)) { $element = $_SESSION['hikashop_order_data']; } else { $element = $cart->cart_fields; } $value = @$element->$fieldName; if(empty($value) && !empty($this->options['read_only'])) continue; if(empty($this->options['read_only'])) { $onWhat = ($oneExtraField->field_type == 'radio') ? 'onclick' : 'onchange'; $html = $this->fieldClass->display( $oneExtraField, $value, 'data[order_' . $this->step . '_' . $this->module_position.']['.$fieldName.']', false, ' class="'.HK_FORM_CONTROL_CLASS.'" '.$onWhat.'="window.hikashop.toggleField(this,\''.$fieldName.'\',\'order_' . $this->step . '_' . $this->module_position.'\',0,\'hikashop_\');"', false, $fields, $cart->cart_fields, false ); if($oneExtraField->field_type == 'hidden') { $after[] = $html; continue; } }else{ $oneExtraField->currentElement = $element; $html = $this->fieldClass->show($oneExtraField, $value); } ?> <div class="hkform-group control-group hikashop_checkout_<?php echo $fieldName;?>_line" id="hikashop_order_<?php echo $this->step . '_' . $this->module_position . '_' . $oneExtraField->field_namekey; ?>"> <?php $requiredDisplay = true; if(!empty($this->options['read_only'])) { $requiredDisplay = false; } $label = $this->fieldClass->getFieldName($oneExtraField, $requiredDisplay, $labelcolumnclass.' hkcontrol-label'); if(!empty($this->options['read_only'])) { $label = str_replace('</label>',' :</label>',$label); } echo $label; ?> <div class="<?php echo $inputcolumnclass;?>"> <?php echo $html; ?> </div> </div> <?php } if(count($after)) { echo implode("\r\n", $after); } if(!empty($this->options['show_submit'])) { ?> <div class="hkform-group control-group hikashop_fields_button_line"> <div class="<?php echo $labelcolumnclass;?> hkcontrol-label"></div> <div class=" <?php echo $inputcolumnclass;?>"> <button type="submit" onclick="return window.checkout.submitFields(<?php echo $this->step.','.$this->module_position; ?>);" class="<?php echo $this->config->get('css_button','hikabtn'); ?> hikabtn_checkout_fields_submit"> <?php echo JText::_('HIKA_SUBMIT_FIELDS'); ?> </button> </div> </div> <?php } } else { $this->emptyBlocksCount++; } ?> </fieldset> <?php if(!empty($this->options['js'])) { ?> <script type="text/javascript"> <?php echo $this->options['js']; ?> </script> <?php } if(empty($this->ajax)) { ?> </div> <script type="text/javascript"> if(!window.checkout) window.checkout = {}; window.Oby.registerAjax(['checkout.fields.updated','cart.updated','checkout.shipping.changed','checkout.payment.changed'], function(params){ window.checkout.refreshFields(<?php echo (int)$this->step; ?>, <?php echo (int)$this->module_position; ?>); }); window.checkout.refreshFields = function(step, id) { return window.checkout.refreshBlock('fields', step, id); }; // make sure field is filled window.checkout.submitFields = function(step, id) { // Check weather "sleepwith" is fiiled if products 78 or 79 is in cart var sleepwithField = document.querySelector('[name="data[order_<?php echo $this->step; ?>_<?php echo $this->module_position; ?>][sleepwith]"]'); if (sleepwithField && sleepwithField.value == "" && <?php echo $found ? 'true' : 'false'; ?>) { alert("Please fill this field"); return false; // Stops if its empty } return window.checkout.submitBlock('fields', step, id); }; </script> <?php } ?>