I have created a custom webform element based on the webform example element. https://github.com/drupalprojects/webform/tree/8.x-5.x/modules/webform_example_element
It is still a simple text field, like the example but does some calculations form the current formid submissions.
Somhow every value entered in my text field shows up as "Array" (basically as the word "Array" in the submissions.
I did a dpm($element['#value']) in the validation handler of the element:
This does not happen with the example.
It seems like I messed something up - maybe somone could shed a light on where to look for? Where is controlled in which format an input value is saved?
I have added some custom twig code - could this be the reason?
<div class="custom-element">
<label for="{{ element['#webform_id'] }}-{{ element['#key'] }}">{{ element['#title'] }}</label>
<div class="custom-element-textfield">{{ dd(element) }}
<input type="text" name="{{ element['#name'] }}[value]" value="{{ element['#value'] }}" class="form-control">
<p>Available Seats: {{ element['#maxseats'] }}</p>
</div>
</div>
Here is the yaml of the form:`
uuid: 7349e6bd-4112-4b4b-8b8c-bf904e3a32c6
langcode: de
status: open
dependencies: { }
weight: 0
open: null
close: null
uid: 1
template: false
archive: false
id: platzreservierung
title: Platzreservierung
description: ''
category: ''
elements: |-
book_seats:
'#type': my_webform_seatbooking_element
'#title': 'Plätze buchen (Element)'
'#multiple': false
'#placeholder': '[webform:element:book_seats:maxseats]'
'#maxseats': '100'
test:
'#type': webform_example_element
'#title': test
'#multiple': false
css: ''
javascript: ''
settings:
ajax: false
ajax_scroll_top: form
ajax_progress_type: ''
ajax_effect: ''
ajax_speed: null
page: true
page_submit_path: ''
page_confirm_path: ''
page_theme_name: ''
form_title: both
form_submit_once: false
form_open_message: ''
form_close_message: ''
form_exception_message: ''
form_previous_submissions: true
form_confidential: false
form_confidential_message: ''
form_disable_remote_addr: false
form_convert_anonymous: false
form_prepopulate: false
form_prepopulate_source_entity: false
form_prepopulate_source_entity_required: false
form_prepopulate_source_entity_type: ''
form_unsaved: false
form_disable_back: false
form_submit_back: false
form_disable_autocomplete: false
form_novalidate: false
form_disable_inline_errors: false
form_required: false
form_autofocus: false
form_details_toggle: false
form_reset: false
form_access_denied: default
form_access_denied_title: ''
form_access_denied_message: ''
form_access_denied_attributes: { }
form_file_limit: ''
form_attributes: { }
form_method: ''
form_action: ''
share: false
share_node: false
share_theme_name: ''
share_title: true
share_page_body_attributes: { }
submission_label: ''
submission_exception_message: ''
submission_locked_message: ''
submission_log: false
submission_excluded_elements: { }
submission_exclude_empty: false
submission_exclude_empty_checkbox: false
submission_views: { }
submission_views_replace: { }
submission_user_columns: { }
submission_user_duplicate: false
submission_access_denied: default
submission_access_denied_title: ''
submission_access_denied_message: ''
submission_access_denied_attributes: { }
previous_submission_message: ''
previous_submissions_message: ''
autofill: false
autofill_message: ''
autofill_excluded_elements: { }
wizard_progress_bar: true
wizard_progress_pages: false
wizard_progress_percentage: false
wizard_progress_link: false
wizard_progress_states: false
wizard_start_label: ''
wizard_preview_link: false
wizard_confirmation: true
wizard_confirmation_label: ''
wizard_auto_forward: true
wizard_auto_forward_hide_next_button: false
wizard_keyboard: true
wizard_track: ''
wizard_prev_button_label: ''
wizard_next_button_label: ''
wizard_toggle: false
wizard_toggle_show_label: ''
wizard_toggle_hide_label: ''
wizard_page_type: container
wizard_page_title_tag: h2
preview: 0
preview_label: ''
preview_title: ''
preview_message: ''
preview_attributes: { }
preview_excluded_elements: { }
preview_exclude_empty: true
preview_exclude_empty_checkbox: false
draft: none
draft_multiple: false
draft_auto_save: false
draft_saved_message: ''
draft_loaded_message: ''
draft_pending_single_message: ''
draft_pending_multiple_message: ''
confirmation_type: page
confirmation_url: ''
confirmation_title: ''
confirmation_message: ''
confirmation_attributes: { }
confirmation_back: true
confirmation_back_label: ''
confirmation_back_attributes: { }
confirmation_exclude_query: false
confirmation_exclude_token: false
confirmation_update: false
limit_total: null
limit_total_interval: null
limit_total_message: ''
limit_total_unique: false
limit_user: null
limit_user_interval: null
limit_user_message: ''
limit_user_unique: false
entity_limit_total: null
entity_limit_total_interval: null
entity_limit_user: null
entity_limit_user_interval: null
purge: none
purge_days: null
results_disabled: false
results_disabled_ignore: false
results_customize: false
token_view: false
token_update: false
token_delete: false
serial_disabled: false
access:
create:
roles:
- anonymous
- authenticated
users: { }
permissions: { }
view_any:
roles: { }
users: { }
permissions: { }
update_any:
roles: { }
users: { }
permissions: { }
delete_any:
roles: { }
users: { }
permissions: { }
purge_any:
roles: { }
users: { }
permissions: { }
view_own:
roles: { }
users: { }
permissions: { }
update_own:
roles: { }
users: { }
permissions: { }
delete_own:
roles: { }
users: { }
permissions: { }
administer:
roles: { }
users: { }
permissions: { }
test:
roles: { }
users: { }
permissions: { }
configuration:
roles: { }
users: { }
permissions: { }
handlers: { }
variants: { }
the /src/plugin/WebformElement/MyWebformSeatbookingElement.php
<?php
namespace Drupal\my_webform_seatbooking_element\Plugin\WebformElement;
use Drupal\Core\Form\FormStateInterface;
use Drupal\webform\Plugin\WebformElementBase;
use Drupal\webform\WebformSubmissionInterface;
/**
* Provides a 'my_webform_seatbooking_element' element.
*
* @WebformElement(
* id = "my_webform_seatbooking_element",
* label = @Translation("Webform seat booking element"),
* description = @Translation("Provides a webform element for booking seats."),
* category = @Translation("Custom elements"),
* )
*
* @see \Drupal\my_webform_seatbooking_element\Element\HwWebformSeatbookingElement
* @see \Drupal\webform\Plugin\WebformElementBase
* @see \Drupal\webform\Plugin\WebformElementInterface
* @see \Drupal\webform\Annotation\WebformElement
*/
class HwWebformSeatbookingElement extends WebformElementBase {
/**
* {@inheritdoc}
*/
protected function defineDefaultProperties() {
// Here you define your webform element's default properties,
// which can be inherited.
//
// @see \Drupal\webform\Plugin\WebformElementBase::defaultProperties
// @see \Drupal\webform\Plugin\WebformElementBase::defaultBaseProperties
return [
'multiple' => '',
'size' => '',
'minlength' => '',
'maxlength' => '',
'placeholder' => '',
'maxseats' => '',
] + parent::defineDefaultProperties();
}
/* ************************************************************************ */
/**
* {@inheritdoc}
*/
public function prepare(array &$element, WebformSubmissionInterface $webform_submission = NULL) {
parent::prepare($element, $webform_submission);
//dpm('be-prepared');
//dpm($element);
// Get the current webform ID.
$webform_id = $element['#webform_id'];
// Get the current element's machine name.
$machine_name = $element['#webform_key'];
// Get all submissions for the current webform.
$webform_storage = \Drupal::entityTypeManager()->getStorage('webform_submission');
$submissions = $webform_storage->loadByProperties(['webform_id' => $webform_id]);
// Sum up the values of all submissions for the current element.
$total = 0;
if (!empty($submissions)) {
foreach ($submissions as $submission) {
$data = $submission->getData();
if (isset($data[$machine_name])) {
$total += $data[$machine_name];
}
}
}
//dpm($total);
// Add the total to the element's attributes.
//$element['data-total'] = $total;
// Here you can customize the webform element's properties.
// You can also customize the form/render element's properties via the
// FormElement.
//
// @see \Drupal\my_webform_seatbooking_element\Element\WebformExampleElement::processWebformElementExample
}
/**
* {@inheritdoc}
*/
public function form(array $form, FormStateInterface $form_state) {
$form = parent::form($form, $form_state);
// Here you can define and alter a webform element's properties UI.
// Form element property visibility and default values are defined via
// ::defaultProperties.
//
// @see \Drupal\webform\Plugin\WebformElementBase::form
// @see \Drupal\webform\Plugin\WebformElement\TextBase::form
return $form;
}
}
the /src/Element/MyWebformSeatBookingElement.php
<?php
namespace Drupal\my_webform_seatbooking_element\Element;
use Drupal\Core\Render\Element;
use Drupal\Core\Render\Element\FormElement;
use Drupal\Core\Form\FormStateInterface;
/**
* Provides a 'my_webform_seatbooking_element'.
*
* Webform elements are just wrappers around form elements, therefore every
* webform element must have correspond FormElement.
*
* Below is the definition for a custom 'my_webform_seatbooking_element' which just
* renders a simple text field.
*
* @FormElement("my_webform_seatbooking_element")
*
* @see \Drupal\Core\Render\Element\FormElement
* @see https://api.drupal.org/api/drupal/core%21lib%21Drupal%21Core%21Render%21Element%21FormElement.php/class/FormElement
* @see \Drupal\Core\Render\Element\RenderElement
* @see https://api.drupal.org/api/drupal/namespace/Drupal%21Core%21Render%21Element
* @see \Drupal\my_webform_seatbooking_element\Element\HwWebformSeatbookingElement
*/
class HwWebformSeatbookingElement extends FormElement {
/**
* {@inheritdoc}
*/
public function getInfo() {
$class = get_class($this);
return [
'#input' => TRUE,
'#size' => 60,
'#process' => [
[$class, 'processWebformElementSeatbooking'],
[$class, 'processAjaxForm'],
],
'#element_validate' => [
[$class, 'validateWebformSeatbookingElement'],
],
'#pre_render' => [
[$class, 'preRenderWebformSeatbookingElement'],
],
'#theme' => 'input__my_webform_seatbooking_element',
'#theme_wrappers' => ['form_element'],
];
}
/**
* Processes a 'my_webform_seatbooking_element' element.
*/
public static function processWebformElementSeatbooking(&$element, FormStateInterface $form_state, &$complete_form) {
// Here you can add and manipulate your element's properties and callbacks.
return $element;
}
/**
* Webform element validation handler for #type 'my_webform_seatbooking_element'.
*/
public static function validateWebformSeatbookingElement(&$element, FormStateInterface $form_state, &$complete_form) {
// Here you can add custom validation logic.
//dpm($element['#value']);
}
/**
* Prepares a #type 'email_multiple' render element for theme_element().
*
* @param array $element
* An associative array containing the properties of the element.
* Properties used: #title, #value, #description, #size, #maxlength,
* #placeholder, #required, #attributes.
*
* @return array
* The $element with prepared variables ready for theme_element().
*/
public static function preRenderWebformSeatbookingElement(array $element) {
$element['#attributes']['type'] = 'text';
Element::setAttributes($element, ['id', 'name', 'value', 'size', 'maxlength', 'placeholder']);
static::setAttributes($element, ['form-text', 'webform-seatbooking-element']);
return $element;
}
}
I get a Notice:
Notice: Array to string conversion in Drupal\webform\WebformSubmissionStorage->saveData() (line 1350 of modules/contrib/webform/src/WebformSubmissionStorage.php).
...
Drupal\Core\Form\FormSubmitter->executeSubmitHandlers(Array, Object) (Line: 52)
Drupal\Core\Form\FormSubmitter->doSubmitForm(Array, Object) (Line: 592)
Drupal\Core\Form\FormBuilder->processForm('webform_submission_platzreservierung_add_form', Array, Object) (Line: 320)
Sorry for all that stuff. Maybe it helps.
