I have a custom form. I need to place the custom form in paragraphs as component.
I have tried in this way,
function hook_preprocess_paragraph(&$variables) {
$form = \Drupal::formBuilder()->getForm('Drupal\custom_module\Form\CustomModuleForm');
$variables['custom_form'] = $form;
}
And trying to print the value in the paragraph twig file.
Its not printing. Please help on this!
Related
I'm trying to create a custom field for a view in Drupal 8 which allows to perform an action without changing the page (link). I guess I have to create a form inside that custom field but I do not know how to achieve it.
Any idea on how to do it or other alternative without redirecting to a route?
The view will be a list of custom entities and I need a button for each of the lines.
Thanks in advance!
Finally I solved it by following this steps:
I created a view custom field (generate:plugin:views:field with
drupal console)
I created a form (generate:form)
Then, in the view custom field render function return the form:
$form = \Drupal::formBuilder()->getForm('Drupal\test_module\Form\TestForm', $values->_entity->ID());
return $form;
It's important to notice that an incremental (dynamic) formId is needed for things to work properly. I did that by creating a static variable and a __construct() method as follows:
protected static $instanceId;
public function getFormId() {
return 'my_form_id_' . self::$instanceId;
}
public function __construct(){
if (empty(self::$instanceId)) {
self::$instanceId = 1;
}
else {
self::$instanceId++;
}
}
I am very much new to drupal 8, I am trying to alter a form under custom content type "Question". The form has an id "node-question-form".
I have setup a module and trying to add hook_FORM_ID_alter() but its never getting called. Even the simplest hook is not working. eg:
function constellator_form_alter(&$form, &$form_state, $form_id){
echo "alter the form"; exit;
}
where 'constellator' is the module name.
I have been stuck with since morning and nothing is working for me, Any help will be greatly appriciated.
Cheers
hook_form_alter() and hook_FORM_ID_alter() are called while a form is being created and before displaying it on the screen.
These functions are written in the .module file.
Always clear the cache after writing any hook function. This makes Drupal understand that such a function has been declared.
Use drush cr if using drush version 8 else click on Manage->Drupal 8 logo->Flush all Caches to clear the caches.
Now you can check if the function is being called or not.
The best way to check that is to install the Devel module, enable it. Along with Devel, Kint is installed. Enable Kint too from the Admin UI.
After doing that,you can check whether the hook is being called or not in the following way:
function constellator_form_alter(&$form, &$form_state, $form_id){
kint($form);
}
This will print all the form variables for all forms in the page.
If you want to target a particular form in the page, for eg. you form, node-question-form, type:
function node_question_form_form_alter(&$form, &$form_state, $form_id){
kint($form);
}
Using echo, the way you did, you can confirm whether the function is being called or not, without any hassle, by viewing the Source Code for the page and then searching for the text that you have echoed, using some search option of browser, like, Ctrl+f in case of Google Chrome.
If you want to change sorting options and/or direction (ASC / DESC), you can use this example (tested with Drupal 9).
Here I force the sorting direction according to the "sort by option" set by the user in an exposed filter. (if the user want to sort by relevance, we set the order to ASC, if the user want to sort by date, we set the order to DESC to have the latest content first).
/**
* Force sorting direction for search by date
*
*/
function MYTHEME_form_alter(&$form, &$form_state, $form_id)
{
if (!$form_id == 'views_exposed_form"' || !$form['#id'] == 'views-exposed-form-search-custom-page-1') {
return;
}
$user_input = $form_state->getUserInput();
if (empty($user_input['sort_by'])) {
return;
}
if ($user_input['sort_by'] == 'relevance') {
$user_input['sort_order'] = 'ASC';
} elseif ($user_input['sort_by'] == 'created') {
$user_input['sort_order'] = 'DESC';
}
$form_state->setUserInput($user_input);
}
Note that "views-exposed-form-search-custom-page-1" is the id of my form,
"relevance" and "created" are the sort field identifier set in drupal admin.
function hook_form_alter(&$form, \Drupal\Core\Form\FormStateInterface &$form_state, $form_id) {
echo 'inside form alter';
}
I want create programmatically a custom content (custom content created via the admin UI). But, before the creation, I want check programmatically the types of fields of my custom content
My custom content contains a field "body" (type text), a field "description" (type text), an int field (type int), an attached file field (type fid ?)...
I test several ways with the new api of Drupal 8, my last try..
// I get the entity object "my_custom_content"
$entity_object = NodeType::load("my_custom_content");
dpm($entity_object); //Work perfectly
$test = \Drupal::getContainer()->get("entity_field.manager")->getFieldDefinitions("my_custom_content",$entity_object->bundle())
//The \Drupal::getConta... Return an error : The "my_custom_content" entity type does not exist.
With this $entity_object, how can I get the list of the fields of my custom content ?
I see the EntityFieldManager Class, the FieldItemList Class...But I still do not understand how to play with drupal 8 / class / poo ... :/
Thanks !
NodeType is the (config) bundle entity for the Node (content) entity.
The correct call would be:
\Drupal::service('entity_field.manager')->getFieldDefinitions('node', 'my_custom_content');
To get the field definitions of any entity_type use the following structure:
\Drupal::service('entity_field.manager')->getFieldDefinitions(ENTITY_TYPE_ID, BUNDLE_ID);
For example, if you want to get all the field definitions of a paragraph bundle with the id multy_purpose_link then replace ENTITY_TYPE_ID with paragraph and BUNDLE_ID with multy_purpose_link
\Drupal::service('entity_field.manager')->getFieldDefinitions('paragraph', 'multy_purpose_link');
The given answers are deprecated. You should now load the entity and just use getFieldDefinitions() to fetch the field definitions.
$node = Node::load($slide_id);
$field_defs = $node->getFieldDefinitions();
Or
$field_defs = \Drupal::service('entity_field.manager')->getFieldDefinitions('taxonomy_term', '<taxonomy machine name here>');
If you want to get the list of field_definitions for a taxonomy vocabulary
If the entity type does not have a bundle, for example the user entity.
Try this:
// All user fields and ones added
$user_fields = \Drupal::service('entity_field.manager')->getFieldDefinitions('user','user');
// Just default
$default_user_fields = \Drupal::service('entity_field.manager')->getFieldDefinitions('user', NULL);
I am developing a joomla website which required some custom component to integrate manage portfolio, user profile etc. We downloaded one of the hello_world MVC component for joomla 2.5[http://docs.joomla.org/Developing_a_Model-View-Controller_Component/2.5/Introduction] and did necessary customization. First component worked well. But now we need a new component that is having multiple forms required to integrate.
Eg: Store types for one form, store details for another form, manage country/ state by another form.
In the default component having option for manage one form [add/edit/delete/view]. Here I tried to modify/replicate but I failed.
Can anyone suggest the architecture/ sample code to manage multiple forms [Add/edit/delete/view] in joomla 2.5 component creation.
Any help will be apreciate?
Supposing You're speaking of forms stored in the model/forms folder... You should try to override the getForm() function in your model, to call the right form. You should pass a 'layout' when calling the page and then get it in the model constructor.
May be so:
class YourComponentModelYourModel extends JModelAdmin{
public function __construct($config = array()){
switch(JRequest::getVar('layout')){
case 'firstlayout' : $this->form='firstform';
break;
case 'secondlayout' : $this->form='secondform';
break;
default : $this->form='defaultform';
}
parent::__construct($config);
}
...
public function getForm($data = array(), $loadData = true)
{
// Get the form.
$form = $this->loadForm('com_yourcomponent.'.$this->form,$this->form,
array('control' => 'jform', 'load_data' => $loadData));
if (empty($form)){return false;}
return $form;
}
You must put a layout for each form in the views/YourView/tmpl folder and the form declaration must call the layout also :
<form action="<?php echo JRoute::_('index.php?option=com_yourcomponent&layout=firstlayout&id='.(int) $this->item->id); ?>"
method="post" name="adminForm" id="draw-form">
I need to put a search box within a list of objects as a result of a typical indexSuccess action in Symfony. The goal is simple: filter the list according to a criteria.
I've been reading the Zend Lucene approach in Jobeet tutorial, but it seems like using a sledge-hammer to crack a nut (at least for my requirements).
I'm more interested in the auto-generated admin filter forms but I don't know how to implement it in a frontend.
I could simply pass the search box content to the action and build a custom query, but is there any better way to do this?
EDIT
I forgot to mention that I would like to have a single generic input field instead of an input field for each model attribute.
Thanks!
I'm using this solution, instead of integrating Zend Lucene I manage to use the autogenerated Symonfy's filters. This is the way i'm doing it:
//module/actions.class.php
public function executeIndex(sfWebRequest $request)
{
//set the form filter
$this->searchForm = new EmployeeFormFilter();
//bind it empty to fetch all data
$this->searchForm->bind(array());
//fetch all
$this->employees = $this->searchForm->getQuery()->execute();
...
}
I made a search action which does the search
public function executeSearch(sfWebRequest $request)
{
//create filter
$this->searchForm = new EmployeeFormFilter();
//bind parameter
$fields = $request->getParameter($this->searchForm->getName());
//bind
$this->searchForm->bind($fields);
//set paginator
$this->employees = $this->searchForm->getQuery()->execute();
...
//template
$this->setTemplate("index");
}
It's important that the search form goes to mymodule/search action.
Actually, i'm also using the sfDoctrinePager for paginate setting directly the query that the form generate to get results properly paginated.
If you want to add more fields to the search form check this :)
I finally made a custom form using the default MyModuleForm generated by Symfony
public function executeIndex {
...
// Add a form to filter results
$this->form = new MyModuleForm();
}
but displaying only a custom field:
<div id="search_box">
<input type="text" name="criteria" id="search_box_criteria" value="Search..." />
<?php echo link_to('Search', '#my_module_search?criteria=') ?>
</div>
Then I created a route named #my_module_search linked to the index action:
my_module_search:
url: my_module/search/:criteria
param: { module: my_module, action: index }
requirements: { criteria: .* } # Terms are optional, show all by default
With Javascript (jQuery in this case) I append the text entered to the criteria parameter in the href attribute of the link:
$('#search_box a').click(function(){
$(this).attr('href', $(this).attr('href') + $(this).prev().val());
});
And finally, back to the executeIndex action, I detect if text was entered and add custom filters to the DoctrineQuery object:
public function executeIndex {
...
// Deal with search criteria
if ( $text = $request->getParameter('criteria') ) {
$query = $this->pager->getQuery()
->where("MyTable.name LIKE ?", "%$text%")
->orWhere("MyTable.remarks LIKE ?", "%$text%")
...;
}
$this->pager->setQuery($query);
...
// Add a form to filter results
$this->form = new MyModuleForm();
}
Actually, the code is more complex, because I wrote some partials and some methods in parent classes to reuse code. But this is the best I can came up with.