extends-grid

name	extends-grid
description	Customize an existing Sylius admin grid (hide/reorder/modify/add fields, filters, actions)
argument-hint	[grid_alias]
allowed-tools	AskUserQuestion, Bash, Read, Edit, Write, Glob, Grep

Extend an existing Sylius Grid

Customize a Sylius core grid (e.g. sylius_admin_product, sylius_admin_customer, sylius_admin_product_review) without replacing it. Sylius merges the override on top of the inherited definition — only declare the keys you change.

Not for new grids — use /sylius-app:add-grid instead.

1. Identify the target grid

Ask the user for the grid alias if not provided. Inspect the current definition:

bin/console sylius:debug:grid {alias}

Run without an argument to get an interactive list of all registered grids — useful when the exact alias is unknown.

Read the output before writing: override keys must exactly match existing field/filter/action names. Setting enabled: false on a key that does not exist is a silent no-op.

2. Write the override

File location matches the rest of the project: config/packages/grids/{alias}.yaml (e.g. sylius_admin_product.yaml). Naming the file after the alias keeps overrides self-documenting.

Assumes config/packages/_sylius.yaml already imports grids/*.yaml at its top. If not, run /sylius-app:add-grid once to scaffold it.

Only include the keys being modified — everything else stays inherited.

Hide a field / filter / action

sylius_grid:
    grids:
        sylius_admin_product_review:
            fields:
                title:
                    enabled: false
            filters:
                title:
                    enabled: false
            actions:
                item:
                    delete:
                        enabled: false

Reorder fields

position: N controls display order (lower = earlier). Declare it on the fields to reorder.

sylius_grid:
    grids:
        sylius_admin_product_review:
            fields:
                status:
                    position: 1
                rating:
                    position: 2
                author:
                    position: 3

Change a label

sylius_grid:
    grids:
        sylius_admin_product_review:
            fields:
                date:
                    label: app.ui.product_review.date

Override an action's route or options

sylius_grid:
    grids:
        sylius_admin_product:
            actions:
                item:
                    show:
                        type: show
                        label: sylius.ui.show_in_shop
                        options:
                            link:
                                route: sylius_shop_product_show
                                parameters:
                                    slug: resource.slug

Add a new field (or filter, or action)

Declare it as in add-grid — Sylius merges the new entry into the inherited grid. Typical case: you ran /sylius-app:extends-model to add a column to a core entity, and want to expose it on the core grid.

sylius_grid:
    grids:
        sylius_admin_product:
            fields:
                myFlag:
                    type: twig
                    label: app.ui.product.my_flag
                    path: myFlag
                    options:
                        template: '@SyliusUi/Grid/Field/enabled.html.twig'
                    position: 50

If the property lives on a trait / extension added via extends-model, access it through its getter — the grid uses PropertyAccess like any other field.

3. PHP event listener (dynamic cases only)

YAML covers hide / reorder / modify / add. Use an event listener only when:

• The modification depends on runtime state (environment, channel, user context, feature flag)
• The decision requires reading the grid's current state (e.g. act only if a given field is present)
• The change is conditional in a way that cannot be expressed statically

Sylius dispatches sylius.grid.{stripped_alias} during grid conversion, where {stripped_alias} is the grid alias with the sylius_ prefix removed (ArrayToDefinitionConverter::getEventName()). For sylius_admin_product the event is sylius.grid.admin_product.

src/Grid/AdminProductGridListener.php:

<?php

declare(strict_types=1);

namespace App\Grid;

use Sylius\Component\Grid\Definition\Field;
use Sylius\Component\Grid\Event\GridDefinitionConverterEvent;

final class AdminProductGridListener
{
    public function __invoke(GridDefinitionConverterEvent $event): void
    {
        $grid = $event->getGrid();

        $grid->removeField('image');

        $field = Field::fromNameAndType('variantSelectionMethod', 'string');
        $field->setLabel('app.ui.product.variant_selection');
        $grid->addField($field);
    }
}

Register it in config/services.yaml:

services:
    app.listener.grid.{stripped_alias}:
        class: App\Grid\{ListenerClassName}
        tags:
            - { name: kernel.event_listener, event: sylius.grid.{stripped_alias} }

{stripped_alias} is the grid alias with the sylius_ prefix removed (e.g. admin_product for sylius_admin_product). {ListenerClassName} is the listener class (e.g. AdminProductGridListener).

$grid->addField() throws LogicException if the field already exists — check with $grid->hasField() first when another bundle may have added it.

4. Clear cache

bin/console cache:clear

5. Verify

• bin/console sylius:debug:grid {alias} reflects all overrides (new fields present, hidden ones marked disabled, reordered positions applied)

Next steps

• Paired with /sylius-app:extends-model when adding a field to a core entity and exposing it here
• For a brand-new grid on a plugin resource, use /sylius-app:add-grid