Add participants parent and child in request filter

app/Form/Actions/FormApiListAction.php

@@ -2,7 +2,7 @@
 
 namespace App\Form\Actions;
 
-use App\Form\FilterScope;
+use App\Form\Scopes\FormFilterScope;
 use App\Form\Models\Form;
 use App\Form\Resources\FormApiResource;
 use Illuminate\Http\Resources\Json\AnonymousResourceCollection;
@@ -20,7 +20,7 @@ class FormApiListAction
      */
     public function handle(string $filter, int $perPage): LengthAwarePaginator
     {
-        return FilterScope::fromRequest($filter)->getQuery()->paginate($perPage);
+        return FormFilterScope::fromRequest($filter)->getQuery()->paginate($perPage);
     }
 
     public function asController(ActionRequest $request): AnonymousResourceCollection

app/Form/Actions/FormIndexAction.php

@@ -2,7 +2,7 @@
 
 namespace App\Form\Actions;
 
-use App\Form\FilterScope;
+use App\Form\Scopes\FormFilterScope;
 use App\Form\Models\Form;
 use App\Form\Resources\FormResource;
 use Illuminate\Pagination\LengthAwarePaginator;
@@ -20,7 +20,7 @@ class FormIndexAction
      */
     public function handle(string $filter): LengthAwarePaginator
     {
-        return FilterScope::fromRequest($filter)->getQuery()->query(fn ($query) => $query->withCount('participants'))->paginate(15);
+        return FormFilterScope::fromRequest($filter)->getQuery()->query(fn ($query) => $query->withCount('participants'))->paginate(15);
     }
 
     public function asController(ActionRequest $request): Response

app/Form/Actions/ParticipantIndexAction.php

@@ -5,6 +5,7 @@ namespace App\Form\Actions;
 use App\Form\Models\Form;
 use App\Form\Models\Participant;
 use App\Form\Resources\ParticipantResource;
+use App\Form\Scopes\ParticipantFilterScope;
 use Illuminate\Http\Resources\Json\AnonymousResourceCollection;
 use Illuminate\Pagination\LengthAwarePaginator;
 use Lorisleiva\Actions\Concerns\AsAction;
@@ -16,14 +17,15 @@ class ParticipantIndexAction
     /**
      * @return LengthAwarePaginator<Participant>
      */
-    public function handle(Form $form): LengthAwarePaginator
+    public function handle(Form $form, ParticipantFilterScope $filter): LengthAwarePaginator
     {
-        return $form->participants()->with('form')->paginate(15);
+        return $form->participants()->withFilter($filter)->with('form')->paginate(15);
     }
 
     public function asController(Form $form): AnonymousResourceCollection
     {
-        return ParticipantResource::collection($this->handle($form))
+        $filter = ParticipantFilterScope::fromRequest(request()->input('filter'));
+        return ParticipantResource::collection($this->handle($form, $filter))
             ->additional(['meta' => ParticipantResource::meta($form)]);
     }
 }

app/Form/Models/Participant.php

@@ -2,9 +2,12 @@
 
 namespace App\Form\Models;
 
+use App\Form\Scopes\ParticipantFilterScope;
+use Illuminate\Database\Eloquent\Builder;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\HasMany;
 
 class Participant extends Model
 {
@@ -23,4 +26,21 @@ class Participant extends Model
     {
         return $this->belongsTo(Form::class);
     }
+
+    /**
+     * @return HasMany<self>
+     */
+    public function children(): HasMany
+    {
+        return $this->hasMany(self::class, 'parent_id');
+    }
+
+    /**
+     * @param  Builder<self> $query
+     * @return Builder<self>
+     */
+    public function scopeWithFilter(Builder $query, ParticipantFilterScope $filter): Builder
+    {
+        return $filter->apply($query);
+    }
 }

app/Form/Resources/FormResource.php

@@ -4,7 +4,7 @@ namespace App\Form\Resources;
 
 use App\Form\Enums\NamiType;
 use App\Form\Fields\Field;
-use App\Form\FilterScope;
+use App\Form\Scopes\FormFilterScope;
 use App\Form\Models\Form;
 use App\Form\Models\Formtemplate;
 use App\Group;
@@ -59,7 +59,7 @@ class FormResource extends JsonResource
             'base_url' => url(''),
             'groups' => Group::forSelect(),
             'fields' => Field::asMeta(),
-            'filter' => FilterScope::fromRequest(request()->input('filter', '')),
+            'filter' => FormFilterScope::fromRequest(request()->input('filter', '')),
             'links' => [
                 'store' => route('form.store'),
                 'formtemplate_index' => route('formtemplate.index'),

app/Form/Scopes/FormFilterScope.php

@@ -1,20 +1,20 @@
 <?php
 
-namespace App\Form;
+namespace App\Form\Scopes;
 
 use Laravel\Scout\Builder;
 use App\Form\Models\Form;
-use App\Lib\Filter;
+use App\Lib\ScoutFilter;
 use Spatie\LaravelData\Attributes\MapInputName;
 use Spatie\LaravelData\Attributes\MapOutputName;
 use Spatie\LaravelData\Mappers\SnakeCaseMapper;
 
 /**
- * @extends Filter<Form>
+ * @extends ScoutFilter<Form>
  */
 #[MapInputName(SnakeCaseMapper::class)]
 #[MapOutputName(SnakeCaseMapper::class)]
-class FilterScope extends Filter
+class FormFilterScope extends ScoutFilter
 {
     public function __construct(
         public ?string $search = '',

app/Form/Scopes/ParticipantFilterScope.php

@@ -0,0 +1,39 @@
+<?php
+
+namespace App\Form\Scopes;
+
+use App\Form\Models\Participant;
+use App\Lib\Filter;
+use Illuminate\Database\Eloquent\Builder;
+use Spatie\LaravelData\Attributes\MapInputName;
+use Spatie\LaravelData\Attributes\MapOutputName;
+use Spatie\LaravelData\Mappers\SnakeCaseMapper;
+
+/**
+ * @extends Filter<Participant>
+ */
+#[MapInputName(SnakeCaseMapper::class)]
+#[MapOutputName(SnakeCaseMapper::class)]
+class ParticipantFilterScope extends Filter
+{
+    public function __construct(
+        public ?int $parent = null,
+    ) {
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function apply(Builder $query): Builder
+    {
+        if ($this->parent === -1) {
+            $query = $query->whereNull('parent_id');
+        }
+
+        if (!is_null($this->parent) && $this->parent > 0) {
+            $query = $query->where('parent_id', $this->parent);
+        }
+
+        return $query;
+    }
+}

app/Lib/Filter.php

@@ -2,8 +2,8 @@
 
 namespace App\Lib;
 
+use Illuminate\Database\Eloquent\Builder;
 use Illuminate\Database\Eloquent\Model;
-use Laravel\Scout\Builder;
 use Spatie\LaravelData\Data;
 
 /**
@@ -14,10 +14,10 @@ abstract class Filter extends Data
 {
 
     /**
-     * @return Builder
+     * @param Builder<T> $query
+     * @return Builder<T>
      */
-    abstract public function getQuery(): Builder;
-    protected Builder $query;
+    abstract public function apply(Builder $query): Builder;
 
     /**
      * @param array<string, mixed>|string|null $request

app/Lib/ScoutFilter.php

@@ -0,0 +1,41 @@
+<?php
+
+namespace App\Lib;
+
+use Illuminate\Database\Eloquent\Model;
+use Laravel\Scout\Builder;
+use Spatie\LaravelData\Data;
+
+/**
+ * @template T of Model
+ * @property Builder $query
+ */
+abstract class ScoutFilter extends Data
+{
+
+    /**
+     * @return Builder
+     */
+    abstract public function getQuery(): Builder;
+    protected Builder $query;
+
+    /**
+     * @param array<string, mixed>|string|null $request
+     */
+    public static function fromRequest(array|string|null $request = null): static
+    {
+        $payload = is_string($request)
+            ? json_decode(rawurldecode(base64_decode($request)), true)
+            : $request;
+
+        return static::fromPost($payload);
+    }
+
+    /**
+     * @param array<string, mixed> $post
+     */
+    public static function fromPost(?array $post = null): static
+    {
+        return static::withoutMagicalCreationFrom($post ?: []);
+    }
+}

app/Member/FilterScope.php

@@ -5,8 +5,8 @@ namespace App\Member;
 use App\Activity;
 use App\Group;
 use App\Invoice\BillKind;
-use App\Lib\Filter;
 use App\Subactivity;
+use App\Lib\ScoutFilter;
 use Illuminate\Support\Collection;
 use Laravel\Scout\Builder;
 use Spatie\LaravelData\Attributes\MapInputName;
@@ -14,11 +14,11 @@ use Spatie\LaravelData\Attributes\MapOutputName;
 use Spatie\LaravelData\Mappers\SnakeCaseMapper;
 
 /**
- * @extends Filter<Member>
+ * @extends ScoutFilter<Member>
  */
 #[MapInputName(SnakeCaseMapper::class)]
 #[MapOutputName(SnakeCaseMapper::class)]
-class FilterScope extends Filter
+class FilterScope extends ScoutFilter
 {
     /**
      * @param array<int, int> $activityIds

database/migrations/2024_02_04_032520_create_participants_table.php

@@ -17,7 +17,7 @@ return new class extends Migration
             $table->id();
             $table->json('data');
             $table->foreignId('form_id');
-            $table->foreignId('parent_id', 'participants')->nullable();
+            $table->foreignId('parent_id')->nullable();
             $table->string('mitgliedsnr')->nullable();
             $table->timestamps();
         });

tests/Feature/Form/ParticipantIndexActionTest.php

@@ -54,6 +54,30 @@ class ParticipantIndexActionTest extends FormTestCase
             ->assertJsonPath('meta.form_meta.sorting', ['vorname', 'asc']);
     }
 
+    public function testItShowsOnlyRootMembers(): void
+    {
+        $this->login()->loginNami()->withoutExceptionHandling();
+        $form = Form::factory()->create();
+        Participant::factory()->for($form)->count(2)
+            ->has(Participant::factory()->count(3)->for($form), 'children')
+            ->create();
+
+        $this->callFilter('form.participant.index', ['parent' => -1], ['form' => $form])->assertJsonCount(2, 'data');
+        $this->callFilter('form.participant.index', ['parent' => null], ['form' => $form])->assertJsonCount(8, 'data');
+    }
+
+    public function testItShowsChildrenOfParent(): void
+    {
+        $this->login()->loginNami()->withoutExceptionHandling();
+        $form = Form::factory()->create();
+        $parents = Participant::factory()->for($form)->count(2)
+            ->has(Participant::factory()->count(3)->for($form), 'children')
+            ->create();
+
+        $this->callFilter('form.participant.index', ['parent' => $parents->get(0)->id], ['form' => $form])->assertJsonCount(3, 'data');
+        $this->callFilter('form.participant.index', ['parent' => $parents->get(1)->id], ['form' => $form])->assertJsonCount(3, 'data');
+    }
+
     public function testItPresentsNamiField(): void
     {
         $this->login()->loginNami()->withoutExceptionHandling();