Improve the docs of autocomplete() customization

Author: javiereguiluz

doc/crud.rst

@@ -472,10 +472,13 @@ query, the optional :doc:`filters </filters>` and the pagination. If you need to
 fully customize this query, override the ``createIndexQueryBuilder()`` method in
 your CRUD controller.
 
+.. _crud-autocomplete:
+
 Autocomplete Options
 ~~~~~~~~~~~~~~~~~~~~
 
-Association fields allow you to :ref:`customize the autocomplete display <field-association-autocomplete>`.
+:doc:`Association fields </fields/AssociationField>` allow you to
+:ref:`customize the autocomplete display <field-association-autocomplete>` per field.
 You can also set a default autocomplete display for all association fields in a
 CRUD controller. This default display is applied to all fields that don't
 configure their own autocomplete, giving them a consistent formatting.
@@ -494,9 +497,7 @@ Define a callback that applies to all autocomplete fields::
     {
         return $crud
             ->autocomplete(
-                callback: static fn ($entity): string => method_exists($entity, 'getFullName')
-                    ? $entity->getFullName()
-                    : (string) $entity
+                callback: static fn ($entity): string => method_exists($entity, 'getFullName') ? $entity->getFullName() : (string) $entity
             )
         ;
     }

doc/fields/AssociationField.rst

@@ -61,6 +61,11 @@ By default, autocomplete fields display entities using their ``__toString()``
 method. You can customize this display using either a 1) callback (for simple
 text) or a 2) Twig template (for complex HTML).
 
+.. tip::
+    If you customize the autocomplete for a given class (for example, ``User``)
+    in the same way across different CRUD controllers, you can
+    :ref:`configure this globally <crud-autocomplete>` per CRUD and/or Dashboard.
+
 **1) Simple Text Customization (Callback)**
 
 Pass a callback to the ``autocomplete()`` method to customize how entities
@@ -69,11 +74,7 @@ appear in the dropdown. This is useful for adding extra information::
     use EasyCorp\Bundle\EasyAdminBundle\Field\AssociationField;
 
     yield AssociationField::new('city')->autocomplete(
-        callback: static fn (City $c): string => sprintf(
-            '%s, %s',
-            $c->getName(),
-            $c->getState()->getCode()
-        )
+        callback: static fn (City $c): string => sprintf('%s, %s', $c->getName(), $c->getState()->getCode())
     );
 
 You can combine the ``enable`` parameter with other options::