I have this form to handle a custom content entity:
created by this code:
public function buildForm(array $form, FormStateInterface $form_state, $contractId = NULL) {
Some code to inialize here...
$wrapper = 'formWrapper';
$form['#prefix'] = '<div id="' . $wrapper . '">';
$form['#suffix'] = '</div>';
$form['designation'] = [
'#type' => 'select',
'#options' => $aMembers,
'#title' => $this->t('Member'),
'#required' => TRUE,
'#empty_option' => t('- Select member -'),
'#default_value' => $memberId,
'#ajax' => [
'callback' => '::memberCallback',
'wrapper' => 'theSubscription',
],
];
$form['theSubscription'] = [
'#type' => 'container',
'#attributes' => ['id' => 'theSubscription'],
'#quantities' => $iNumberOfQuantities,
];
$value = $subscription['quantity01'];
$form['theSubscription']['quantity01'] = [
'#type' => 'number',
'#title' => 'quantity01',
'#min' => 0.00,
'#max' => 99.95,
'#step' => 0.05,
'#value' => $value,
];
}
$sharedwith_id = $subscription['sharedwith_member_id'];
$form['theSubscription']['sharedwith'] = [
'#type' => 'select',
'#title' => t('Shared with'),
'#options' => $aMembersforsharing,
'#value' => $sharedwith_id,
];
$form['theSubscription']['comment'] = [
'#type' => 'textarea',
'#title' => t('Comment'),
'#rows' => 1,
'#value' => $subscription['comment'],
];
$fileId = (int) $subscription['file__target_id'];
$form['theSubscription'][$fileId] = [
'#type' => 'managed_file',
'#description' => $this->t('Limited to @size MB.', ['@size' => $upload_max_inMB]) . '<br>' . $this->t('Allowed types: pdf.'),
'#upload_location' => 'private://contracts/subscriptions/',
'#upload_validators' => [
'file_validate_extensions' => ['pdf'],
'file_validate_size' => [$upload_max],
],
'#default_value' => [$fileId],
];
if ($sContractIsOpenForSubscription) {
$form['save'] = [
'#type' => 'submit',
'#name' => 'save',
'#value' => $this->t('Save'),
];
}
$form['leave'] = [
'#type' => 'button',
'#name' => 'leave',
'#value' => $this->t('Leave'),
'#ajax' => [
'callback' => '::leaveCallback',
],
'#limit_validation_errors' => [],
];
$form['#attached']['library'][] = 'amap/amap';
return $form;
}
There are two buttons: 'save' of type 'submit' and 'leave' of type 'button' with an Ajax calback.
Everything works fine:
'leave' quits the form properly and 'save' actually saves data content entity as expected before presenting the empty form for another possible update.
Except for that piece of code which doesn't work (it is executed just after entity update):
\Drupal::messenger()->addMessage($this->t('The changes have been saved for « %designation ».', ['%designation' => $form["designation"]["#options"][$result["designation"]]]));
By the way, I also tried this:
$response = new AjaxResponse();
$response->addCommand(new MessageCommand($this->t('The changes have been saved for « %designation ».', ['%designation' => $form["designation"]["#options"][$result["designation"]]])));
return $response;
without success.
What is wrong with this code?
[Update] code executed by the two buttons: leave (Quitter):
public function leaveCallback($form, FormStateInterface $form_state) {
$response = new AjaxResponse();
$response->addCommand(new \Drupal\Core\Ajax\RedirectCommand(Url::fromRoute('amap.contracts')
->toString()));
return $response;
}
save (Enregistrer): function submitForm(a
rray &$form, FormStateInterface $form_state) {
if ($form_state->getTriggeringElement()['#name'] == 'save') {
some code to prepare entity update...
if ($hash != $result['hash']) { <-- Is there aniting to do?
Code to update content entity...
_export_amap_CSV('amap_contracts_subscriptions', 'rest_export_1', $contract); <-- Export content entity as CSV file
\Drupal::messenger()->addMessage($this->t('The changes have been saved for « %designation ».', ['%designation' => $form["designation"]["#options"][$result["designation"]]]));
}
}
else {
$form_state->setRebuild();
}
}
\Drupal::messenger()->addMessagebeforeCode to update content entity.... It didn't change anything: still no message displayed.