Group Summaries by asign

• Screenshots
• Requirements
• Installation
• Usage
• How it works and its trade-offs
• Gotchas
• AI agents
• Testing

Show a Filament table's column summaries in the group header row (they stay visible when the group is collapsed), hide the summary row drawn after each group, and give a group its own default sort direction. No Filament view is forked.

Requested in filamentphp/filament#19615 (summaries in the group header), with related asks #15353 (hide the summary per group) and #19753 (default direction for groups).

• Screenshots
• Requirements
• Installation
• Usage
• How it works and its trade-offs
• Gotchas
• AI agents
• Testing

#Screenshots

#Requirements

• PHP 8.3+
• Filament 5.9+ (composer.json requires ^5.9). Developed and tested against Filament 5.9 (filament/tables v5.9.0). The plugin relies on a few Filament internals (listed in How it works); tests/FilamentInternalsTest.php fails with a message naming what moved if a Filament update breaks one.

#Installation

composer require asignua/filament-group-summaries
php artisan filament:assets

Register the plugin on the panel (it links a tiny stylesheet after your theme):

use Asignua\FilamentGroupSummaries\GroupSummariesPlugin;

$panel->plugin(GroupSummariesPlugin::make());

#Usage

Use SummaryGroup wherever you used Group; it extends it, so everything you already call still works.

use Asignua\FilamentGroupSummaries\SummaryGroup;
use Filament\Tables\Columns\Summarizers\Sum;

$table
    ->columns([
        TextColumn::make('status'),
        TextColumn::make('amount')->summarize(Sum::make()->label('Total')),
    ])
    ->groups([
        SummaryGroup::make('status')
            ->collapsible()
            ->summariesInHeader()     // Sum / Average / Count / Range / Values / custom, per group
            ->hideTrailingSummary()   // drop the row Filament draws after each group
            ->defaultDirection('desc'),
    ]);

For the table's default group use makeDefaultOn(); plain ->defaultGroup($group) keeps Table::defaultGroup()'s own direction argument ('asc').

#How it works and its trade-offs

Filament has no hook for a group header, and index.blade.php is huge and changes every release, so the view is not overridden. Instead:

• Header summaries. The header prints the group's description with {{ }}, which renders any Htmlable unescaped. SummaryGroup::getDescription() returns your description (if any) plus a strip of summaries. The values come from Filament's own getTableSummarySelectedState() (the same grouped query Filament runs for its summary rows), rendered by the columns' own summarizers, so formatting, labels and custom summarizers match the footer. The strip is cached per query, so any number of group headers cost one extra aggregate query per render.
• Hide the trailing row. A marker element is emitted into the header and a CSS :has() rule hides a tr.fi-ta-summary-row that directly follows a record row and is not the last row of the tbody: that is always a per-group row (the next group header or the totals follow it). The page / all-records totals sit in the same tbody but follow a summary row or the page-summary header row; when the last group continues on the next page Filament skips its trailing row, and without a page-summary header (page summaries off, cursor pagination) the all-records total follows a record row, but it is then the last row and stays visible. So the totals stay visible on single-page, multi-page, cursor-paginated and unpaginated tables alike. One limit: with summaries(allTableCondition: false) on a page without a page-summary header row, the very last per-group row is the last row of the tbody and stays visible. If a Filament update changes that markup, the rows simply stay visible.
• Default direction. The dropdown always sends group:asc the moment a group is picked, so a Livewire component hook (registered by the service provider) swaps in the group's direction when the group changes. A later explicit direction change inside the same group is respected.

Trade-offs, honestly:

• The header is a single cell spanning the whole row, so the values are a strip of "Column Label value" items under the group title, not cells aligned under their columns. Aligned cells would need a fork of Filament's table view.
• Filament still computes its own grouped aggregate for the (hidden) trailing rows: header summaries add one query on top of Filament's one.
• The strip sits in the group description, which is a <p>: summarizer HTML is flattened to inline elements (block tags such as <div>, <ul>, <li> become <span>, Values becomes a comma-separated list).

#Gotchas

• Only aggregate summarizers (Sum, Average, plain Count, Range) use the shared grouped query. Summarizers that query on their own run their queries once per group header, on top of the ones Filament runs for its trailing rows: ->query(...) modifications, Values (a distinct()->pluck()), Count::icons() (a pluck plus a count per value) and ->using(...) callbacks.
• hideTrailingSummary() is per SummaryGroup, not per group value (CSS cannot tell which trailing row belongs to which group).
• Tables without an Eloquent summary query (custom array data) get no header summaries.
• Without the panel plugin the data is right but unstyled.

#AI agents

resources/boost/guidelines/core.blade.php ships Laravel Boost guidelines.

#Testing

composer install
vendor/bin/phpunit

See the CHANGELOG and the LICENSE.