当我从第三方API获取json时,尝试为表单动态创建新字段。基于此json,我需要在表单中添加一些字段-不是固定数字。因此,我正在执行此操作,将其挂接到gform_pre_render
上:
add_filter( 'gform_pre_process', 'create_products_gforms' );
add_filter( 'gform_admin_pre_render', 'create_products_gforms' );
add_filter( 'gform_pre_render', 'create_products_gforms' );
function create_products_gforms( $form ) {
$helper = new NSHelper();
$state_name = $_POST['input_7'] ?? '';
$code_value = $helper->get_state_code_by_name( $state_name );
// Only fetch products if current form id is 33, state code is defined
// and if there are products for this state.
if ( $form['id'] != 33 || !$code_value ) {
return $form;
}
// Get product list from NetSuit API based on state code
$products_json_data = get_products_data( $code_value );
$products = json_decode( json_decode( $products_json_data ) );
$new_field_id = 0;
foreach( $form['fields'] as $field ) {
if( $field->id > $new_field_id ) {
$new_field_id = $field->id;
}
}
$new_field_id++;
foreach ( $products as $product_object ) {
// Prepare field properties
$props = array(
'id' => $new_field_id,
'type' => 'singleproduct',
'label' => $product_object->onlinedisplayname,
'basePrice' => floatval( $product_object->price ),
'enableCalculation' => true
);
// Create new gravity forms field and add it to the form object
$nf = GF_Fields::create( $props );
// Hack - insert into array at specific position
// Needed to display product fields before other fields
// in the form
array_splice( $form['fields'], 11, 0, array($nf) );
$new_field_id++;
}
GFAPI::update_form( $form );
$form['dynamic_fields_ids'] = $added_fields_ids;
return $form;
}
这有效,即,它在前端正确显示了字段。现在,问题在于,提交表单后,除了这些动态添加的字段外,所有其他字段都在提交中。但是这些不是。我认为必须这样做,因为这些字段未在表单中注册,因此我也尝试了GFAPI::update_form( $form );
,但这对提交部分没有帮助,尽管它也会在后端添加新字段来填充我的表单。
有什么想法吗?
答案 0 :(得分:1)
根据您的用例Milos,我建议使用gform_form_post_get_meta过滤器:
https://docs.gravityforms.com/gform_form_post_get_meta/
这将在每次从数据库中获取表单时触发,并且会出现最肯定的保证您的字段的方式。
如果您希望更外科手术并坚持使用gform_pre_render方法,则可以将相同的功能应用于其他几个过滤器:
gform_pre_process
gform_admin_pre_render