diff --git a/src/Filters/Resolve.php b/src/Filters/Resolve.php
index 8168edf..e435b3e 100644
--- a/src/Filters/Resolve.php
+++ b/src/Filters/Resolve.php
@@ -46,6 +46,7 @@ public function __construct(FilterList $filterList, Model $model)
      * @param array|string $values
      *
      * @throws Exception
+     * @throws Exception
      *
      * @return void
      */
@@ -64,6 +65,7 @@ public function apply(Builder $query, string $field, array|string $values): void
      * @param Closure $closure
      *
      * @throws Exception
+     * @throws Exception
      *
      * @return bool
      */
@@ -76,9 +78,9 @@ private function safe(Closure $closure): bool
         } catch (Exception $exception) {
             if (config('purity.silent')) {
                 return false;
-            } else {
-                throw $exception;
             }
+
+            throw $exception;
         }
     }
 
@@ -89,13 +91,11 @@ private function safe(Closure $closure): bool
      */
     private function validate(array|string $values = [])
     {
-        if (empty($values) or is_string($values)) {
+        if (empty($values) || is_string($values)) {
             throw NoOperatorMatch::create($this->filterList->keys());
         }
 
-        if (in_array(key($values), $this->filterList->keys())) {
-            return;
-        } else {
+        if (!in_array(key($values), $this->filterList->keys())) {
             $this->validate(array_values($values)[0]);
         }
     }
@@ -108,15 +108,14 @@ private function validate(array|string $values = [])
      * @param array|string|null $filters
      *
      * @throws Exception
+     * @throws Exception
      *
      * @return void
      */
     private function filter(Builder $query, string $field, array|string|null $filters): void
     {
         // Ensure that the filter is an array
-        if (!is_array($filters)) {
-            $filters = [$filters];
-        }
+        $filters = is_array($filters) ? $filters : [$filters];
 
         // Resolve the filter using the appropriate strategy
         if ($this->filterList->get($field) !== null) {
@@ -186,11 +185,9 @@ private function applyRelations(Builder $query, Closure $callback): void
      */
     private function relation(Builder $query, Closure $callback)
     {
-        // remove last field until its empty
+        // remove the last field until its empty
         $field = array_shift($this->fields);
-        $query->whereHas($field, function ($subQuery) use ($callback) {
-            $this->applyRelations($subQuery, $callback);
-        });
+        $query->whereHas($field, fn ($subQuery) => $this->applyRelations($subQuery, $callback));
     }
 
     /**
@@ -205,21 +202,31 @@ private function relation(Builder $query, Closure $callback)
     private function applyRelationFilter(Builder $query, string $field, array $filters): void
     {
         foreach ($filters as $subField => $subFilter) {
-            $relation = end($this->fields);
-            if ($relation !== false) {
-                array_push($this->previousModels, $this->model);
-                $this->model = $this->model->$relation()->getRelated();
-            }
+            $this->prepareModelForRelation($field);
             $this->validateField($field);
             $this->validateOperator($field, $subField);
 
             $this->fields[] = $this->model->getField($field);
             $this->filter($query, $subField, $subFilter);
         }
+        $this->restorePreviousModel();
+    }
+
+    private function prepareModelForRelation(string $field): void
+    {
+        $relation = end($this->fields);
+        if ($relation !== false) {
+            $this->previousModels[] = $this->model;
+
+            $this->model = $this->model->$relation()->getRelated();
+        }
+    }
+
+    private function restorePreviousModel(): void
+    {
         array_pop($this->fields);
-        if (count($this->previousModels)) {
-            $this->model = end($this->previousModels);
-            array_pop($this->previousModels);
+        if (!empty($this->previousModels)) {
+            $this->model = array_pop($this->previousModels);
         }
     }
 
diff --git a/src/Traits/Filterable.php b/src/Traits/Filterable.php
index 510bcf7..16a26ff 100644
--- a/src/Traits/Filterable.php
+++ b/src/Traits/Filterable.php
@@ -12,11 +12,11 @@
 use ReflectionClass;
 
 /**
- * List of available filters, can be set on the model otherwise it will be read from config.
+ * The List of available filters can be set on the model otherwise it will be read from config.
  *
  * @property array $filters
  *
- * List of available fields, if not declared will accept every thing.
+ * List of available fields, if not declared, will accept everything.
  * @property array $filterFields
  *
  * Fields will restrict to defined filters.
@@ -64,7 +64,7 @@ public function scopeFilter(Builder $query, array|null $params = null): Builder
         // Apply each filter to the query builder instance
 
         foreach ($params as $field => $value) {
-            app($this->getFilterResolver())->apply($query, $field, $value);
+            app(Resolve::class)->apply($query, $field, $value);
         }
 
         return $query;
@@ -81,7 +81,11 @@ private function bootFilter(): void
             return (new FilterList())->only($this->getFilters());
         });
 
-        app()->when($this->getFilterResolver())->needs(Model::class)->give(fn () => $this);
+        app()->bind(Resolve::class, function () {
+            $resolver = $this->getFilterResolver();
+
+            return new $resolver(app(FilterList::class), $this);
+        });
     }
 
     /**
@@ -210,8 +214,7 @@ public function getRestrictedFilters(): array
         foreach ($this->restrictedFilters ?? $this->filterFields ?? [] as $key => $value) {
             if (is_int($key) && Str::contains($value, ':')) {
                 $tKey = str($value)->before(':')->squish()->toString();
-                $tValue = str($value)->after(':')->squish()->explode(',')->all();
-                $restrictedFilters[$tKey] = $tValue;
+                $restrictedFilters[$tKey] = str($value)->after(':')->squish()->explode(',')->all();
             }
             if (is_string($key)) {
                 $restrictedFilters[$key] = Arr::wrap($value);
diff --git a/tests/App/Migrations/0001_01_01_000000_create_test_tables.php b/tests/App/Migrations/0001_01_01_000000_create_test_tables.php
index 4162546..1beb45b 100644
--- a/tests/App/Migrations/0001_01_01_000000_create_test_tables.php
+++ b/tests/App/Migrations/0001_01_01_000000_create_test_tables.php
@@ -2,6 +2,7 @@
 
 use Abbasudo\Purity\Tests\App\Models\Author;
 use Abbasudo\Purity\Tests\App\Models\Post;
+use Abbasudo\Purity\Tests\App\Models\Product;
 use Abbasudo\Purity\Tests\App\Models\Tag;
 use Abbasudo\Purity\Tests\App\Models\User;
 use Illuminate\Database\Migrations\Migration;
@@ -31,6 +32,7 @@ public function up(): void
             $table->id();
             $table->foreignIdFor(User::class)->nullable();
             $table->string('title')->nullable();
+            $table->nullableMorphs('postable');
             $table->timestamps();
         });
 
@@ -60,6 +62,7 @@ public function up(): void
             $table->foreignIdFor(Author::class)->nullable();
             $table->string('name');
             $table->string('description');
+            $table->foreignIdFor(Product::class)->nullable();
             $table->timestamps();
         });
 
diff --git a/tests/App/Models/Book.php b/tests/App/Models/Book.php
index 5e934a1..5f1b675 100644
--- a/tests/App/Models/Book.php
+++ b/tests/App/Models/Book.php
@@ -6,6 +6,7 @@
 use Abbasudo\Purity\Traits\Sortable;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\MorphMany;
 
 class Book extends Model
 {
@@ -26,4 +27,9 @@ public function author(): BelongsTo
     {
         return $this->belongsTo(Author::class);
     }
+
+    public function posts(): MorphMany
+    {
+        return $this->morphMany(Post::class, 'postable');
+    }
 }
diff --git a/tests/App/Models/Post.php b/tests/App/Models/Post.php
index 1e361ff..5d4530a 100644
--- a/tests/App/Models/Post.php
+++ b/tests/App/Models/Post.php
@@ -9,6 +9,7 @@
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
 use Illuminate\Database\Eloquent\Relations\BelongsToMany;
 use Illuminate\Database\Eloquent\Relations\HasMany;
+use Illuminate\Database\Eloquent\Relations\MorphTo;
 
 class Post extends Model
 {
@@ -18,6 +19,7 @@ class Post extends Model
 
     protected $fillable = [
         'title',
+        'user_id',
     ];
 
     public function comments(): HasMany
@@ -34,4 +36,9 @@ public function tags(): BelongsToMany
     {
         return $this->belongsToMany(Tag::class);
     }
+
+    public function postable(): MorphTo
+    {
+        return $this->morphTo();
+    }
 }
diff --git a/tests/App/Models/Product.php b/tests/App/Models/Product.php
index 72e5f96..fedf726 100644
--- a/tests/App/Models/Product.php
+++ b/tests/App/Models/Product.php
@@ -7,6 +7,8 @@
 use Abbasudo\Purity\Traits\Sortable;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\HasOne;
+use Illuminate\Database\Eloquent\Relations\MorphMany;
 
 class Product extends Model
 {
@@ -26,4 +28,14 @@ protected static function newFactory()
         'description',
         'is_available',
     ];
+
+    public function posts(): MorphMany
+    {
+        return $this->morphMany(Post::class, 'postable');
+    }
+
+    public function book(): HasOne
+    {
+        return $this->hasOne(Book::class);
+    }
 }
diff --git a/tests/Feature/FilterableTest.php b/tests/Feature/FilterableTest.php
index 17f234c..3828987 100644
--- a/tests/Feature/FilterableTest.php
+++ b/tests/Feature/FilterableTest.php
@@ -409,7 +409,7 @@ public function it_can_filter_with_and_operator(): void
         ]);
 
         $response = $this->getJson(
-            '/posts?filters[$and][0][name][$eq]=laravel purity is the best&filters[$and][1][description][$eq]=laravel purity is the best'
+            '/products?filters[$and][0][name][$eq]=laravel purity&filters[$and][1][description][$eq]=laravel purity is the best'
         )
             ->assertOk()
             ->assertJsonCount(1);
diff --git a/tests/Feature/RelationFilterTest.php b/tests/Feature/RelationFilterTest.php
new file mode 100644
index 0000000..2ee34d7
--- /dev/null
+++ b/tests/Feature/RelationFilterTest.php
@@ -0,0 +1,97 @@
+<?php
+
+use Abbasudo\Purity\Tests\App\Models\Post;
+use Abbasudo\Purity\Tests\App\Models\Product;
+use Abbasudo\Purity\Tests\App\Models\User;
+use Abbasudo\Purity\Tests\TestCase;
+use Illuminate\Support\Facades\Route;
+
+class RelationFilterTest extends TestCase
+{
+    public function setUp(): void
+    {
+        parent::setUp();
+
+        Route::get('/posts', function () {
+            return Post::filter()->get();
+        });
+
+        Route::get('/products', function () {
+            return Product::filter()->get();
+        });
+
+        Post::create([
+            'title' => 'laravel purity is the best',
+        ]);
+    }
+
+    /** @test */
+    public function it_can_filter_by_has_many_relation(): void
+    {
+        $post = Post::first();
+
+        $post->comments()->create([
+            'content' => 'first comment',
+        ]);
+
+        $post->comments()->create([
+            'content' => 'second comment',
+        ]);
+
+        $response = $this->getJson('/posts?filters[comments][content][$eq]=first comment');
+
+        $response->assertOk();
+        $response->assertJsonCount(1);
+    }
+
+    /** @test */
+    public function it_can_filter_by_belongs_to_relation(): void
+    {
+        $user = User::create([
+            'name' => 'Test',
+        ]);
+
+        $post = Post::create([
+            'title'   => 'laravel purity is the best',
+            'user_id' => $user->id,
+        ]);
+
+        $response = $this->getJson('/posts?filters[user][name][$eq]=Test');
+
+        $response->assertOk();
+        $response->assertJsonCount(1);
+    }
+
+    /** @test */
+    public function it_can_filter_by_belongs_to_many_relation(): void
+    {
+        $post = Post::first();
+
+        $post->tags()->create([
+            'name' => 'Laravel',
+        ]);
+
+        $response = $this->getJson('/posts?filters[tags][name][$eq]=Laravel');
+
+        $response->assertOk();
+        $response->assertJsonCount(1);
+    }
+
+    /** @test */
+    public function it_can_filter_by_has_one_relation(): void
+    {
+        $product = Product::factory([
+            'name' => 'Laravel Purity',
+        ])->create();
+
+        $product->book()->create([
+            'name'        => 'book',
+            'description' => 'book for product',
+        ]);
+
+        $response = $this->getJson('/products?filters[book][name][$eq]=book');
+
+        $response->assertOk();
+        $response->assertJsonCount(1);
+    }
+}
diff --git a/tests/TestCase.php b/tests/TestCase.php
index 76fc026..23fdea0 100644
--- a/tests/TestCase.php
+++ b/tests/TestCase.php
@@ -25,6 +25,6 @@ protected function getPackageProviders($app): array
 
     protected function getEnvironmentSetUp($app)
     {
-        //
+        $app['config']->set('purity.silent', false);
     }
 }