How to get the defined field in sonataadmin query builder? - symfony

Question

There is the following code
$form->with('Item')->add('parent', null, array(
'label' => 'Category',
'required' => true,
'query_builder' =>
function($er) use ($id) {
$qb = $er->createQueryBuilder('p');
if ($id){
$qb->where('p.id <> :id')
->setParameter('id', $id);
}
$qb->orderBy('p.root, p.lft', 'ASC');
return $qb;
}
.........
Result is the entity-objects collection which is given to the string (__toString method).
It return name-field.
But I need get the another field - url.
How to get url value instead the name in the select-list form?
The query_builder type return object => how to change this form that it works likewise query_builder?

Answer 1

I didn't work with SonataAdminBundle forms, but I think that it works absolutely like symfony forms. All that you need here is to add 'class' and 'property' values to your options list:
$form->with('Item')->add('parent', null, array(
'class' => 'Acme\DemoBundle\Entity\Category',
'property' => 'url',
'label' => 'Category',
'required' => true,
'query_builder' =>
function($er) use ($id) {
$qb = $er->createQueryBuilder('p');
if ($id){
$qb->where('p.id <> :id')
->setParameter('id', $id);
}
$qb->orderBy('p.root, p.lft', 'ASC');
return $qb;
}
property - is the name of the field in your entity that will represent your Entity's value instead of calling __toString().
But also... If you need always represent your Entity as URL you can simply override __toString() method in the Entity class to something like that:
public function __toString() {
return $this->url;
}

Answer 2

In my case, ->orderBy() used in query_builder worked, but was overwritten for unknown reasons "somewhere" later. Fun fact: when I used extended => true, everything was rendered like sorted in the query_builder. But by using extended => false my <option>s are re-sorted before select2 touched it.
As a workaround I did this:
config/packages/twig.yaml
twig:
paths:
'%kernel.project_dir%/templates': '%kernel.project_dir%/templates'
# This is to prevent a infinite loop when extending the parent template
'vendor/sonata-project/admin-bundle/src/Resources/views': SonataAdminBundleOriginal
And then I done the sorting I wanted again in twig for the project entity:
templates/bundles/SonataAdminBundle/Form/form_admin_fields.html.twig:
{% extends '#SonataAdminBundleOriginal/Form/form_admin_fields.html.twig' %}
{%- block choice_widget_options -%}
{% if name == 'project' %}
{% set options = options|sort((a, b) => a.data.numberSortable <=> b.data.numberSortable)|reverse %}
{% endif %}
{{ parent() }}
{%- endblock choice_widget_options -%}

Answer 3

Just in case if someone needs to "filter" an entity by a FK (foreign key) just like i needed (and searched for 3 days), here is the solution:
In the __construct you can set/find what you need. In my case i work this "sessions" (year). So i find the session->status=true:
$this->sessionActive = $this->sessionRepository->findOneBy(['status'=>true]);
Then in the QueryBuilder:
protected function configureQuery(ProxyQueryInterface $query): ProxyQueryInterface
{
$rootAlias = current($query->getRootAliases());
$query
->select($rootAlias)
->where($rootAlias.'.session = :id')
->addOrderBy($rootAlias.'.dateStart', 'ASC')
->setParameter('id', $this->sessionActive->getId());
return $query;
}
Note: I have always one Session->status set to "true". If you might have null values don't forget to make a condition so that it doesn't give you an error!
Regards.