I have large collection of cities. I want in my admin to filter by city name. Because of large number of records i have to use sonata_type_model_autocomplete. It works almost perfect in form.
$form->add('city', 'sonata_type_model_autocomplete',
[
'property' => 'name',
'model_manager' => $form->getAdmin()->getModelManager(),
'class' => 'AppBundle\Document\Geography\City',
'to_string_callback' => function($e, $p) {
return sprintf('%s, %s, %s, %s',
$e->getName(), $e->getRegion()->getName(), $e->getRegion()->getCountry()->getName(), $e->getRegion()->getCountry()->getContinent()->getName()
);
}
]);
But when i try to do this in filter i have an error:
Error: Call to a member function isGranted() on null
Code for filter:
$datagridMapper->add('city', null, ['show_filter' => true], 'sonata_type_model_autocomplete',
[
'property' => 'name',
'context' => 'filter',
'admin_code' => 'app.admin.custom_page_text',
'model_manager' => $datagridMapper->getAdmin()->getModelManager(),
'by_reference' => 'false',
'to_string_callback' => function($e, $p) {
return sprintf('%s, %s, %s, %s',
$e->getName(), $e->getRegion()->getName(), $e->getRegion()->getCountry()->getName(), $e->getRegion()->getCountry()->getContinent()->getName()
);
}
])
