Store table on group

packages/tables/src/Grouping/Concerns/BelongsToTable.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace Filament\Tables\Grouping\Concerns;
+
+use Filament\Tables\Contracts\HasTable;
+use Filament\Tables\Table;
+
+trait BelongsToTable
+{
+    protected Table $table;
+
+    public function table(Table $table): static
+    {
+        $this->table = $table;
+
+        return $this;
+    }
+
+    public function getTable(): Table
+    {
+        return $this->table;
+    }
+
+    public function getLivewire(): HasTable
+    {
+        return $this->getTable()->getLivewire();
+    }
+}

packages/tables/src/Grouping/Group.php

@@ -17,6 +17,8 @@ use Illuminate\Support\Arr;
 
 class Group extends Component
 {
+    use Concerns\BelongsToTable;
+
     protected ?string $column;
 
     protected ?Closure $getDescriptionFromRecordUsing = null;
@@ -33,7 +35,7 @@ class Group extends Component
 
     protected ?Closure $scopeQueryByKeyUsing = null;
 
-    protected string | Closure | null $label;
+    protected string | Closure | null $label = null;
 
     protected string $id;
 
@@ -471,4 +473,16 @@ class Group extends Component
 
         return $query->with([$relationshipName]);
     }
+
+    /**
+     * @return array<mixed>
+     */
+    protected function resolveDefaultClosureDependencyForEvaluationByName(string $parameterName): array
+    {
+        return match ($parameterName) {
+            'livewire' => [$this->getLivewire()],
+            'table' => [$this->getTable()],
+            default => parent::resolveDefaultClosureDependencyForEvaluationByName($parameterName),
+        };
+    }
 }

packages/tables/src/Table/Concerns/CanGroupRecords.php

@@ -72,6 +72,10 @@ trait CanGroupRecords
 
     public function defaultGroup(string | Group | null $group): static
     {
+        if ($group instanceof Group) {
+            $group->table($this);
+        }
+
         $this->defaultGroup = $group;
 
         return $this;
@@ -82,6 +86,12 @@ trait CanGroupRecords
      */
     public function groups(array | Closure $groups): static
     {
+        foreach ($groups as $group) {
+            if ($group instanceof Group) {
+                $group->table($this);
+            }
+        }
+
         $this->groups = $groups;
 
         return $this;
@@ -159,7 +169,8 @@ trait CanGroupRecords
             return $group;
         }
 
-        return Group::make($this->defaultGroup);
+        return Group::make($this->defaultGroup)
+            ->table($this);
     }
 
     /**
@@ -171,7 +182,8 @@ trait CanGroupRecords
             $this->evaluate($this->groups),
             function (array $carry, $group): array {
                 if (! $group instanceof Group) {
-                    $group = Group::make($group);
+                    $group = Group::make($group)
+                        ->table($this);
                 }
 
                 $carry[$group->getId()] = $group;