diff --git a/src/Concerns/Filterable.php b/src/Concerns/Filterable.php
index 3edd8814..2dc97bdb 100644
--- a/src/Concerns/Filterable.php
+++ b/src/Concerns/Filterable.php
@@ -35,7 +35,7 @@ public function scopeFilter(Builder $query, Request $request): Builder
     {
         foreach ($request->except('filter') as $name => $value) {
             if ($this->hasNamedScope($name) && ! is_null($value)) {
-                $query = $this->callNamedScope($name, [$query, $value]);
+                $this->callNamedScope($name, [$query, $value]);
             }
         }
 
@@ -46,12 +46,12 @@ public function scopeFilter(Builder $query, Request $request): Builder
      * Exclude the given models from the query.
      *
      * @param  \Illuminate\Database\Eloquent\Builder  $query
-     * @param  int|string|array  $value
+     * @param  array  $value
      * @return \Illuminate\Database\Eloquent\Builder
      */
-    public function scopeExclude(Builder $query, $value): Builder
+    public function scopeExclude(Builder $query, array $value): Builder
     {
-        return $query->whereNotIn('id', (array) $value);
+        return $query->whereNotIn($query->qualifyColumn('id'), $value);
     }
 
     /**
@@ -87,7 +87,8 @@ public function scopeState(Builder $query, string $value): Builder
     public function scopeSort(Builder $query, array $value = []): Builder
     {
         return $query->orderBy(
-            $value['by'] ?? 'created_at', $value['order'] ?? 'desc'
+            $query->qualifyColumn($value['by'] ?? 'created_at'),
+            $value['order'] ?? 'desc'
         );
     }
 }
diff --git a/src/Models/Address.php b/src/Models/Address.php
index b0c27aac..9a6f6ba2 100644
--- a/src/Models/Address.php
+++ b/src/Models/Address.php
@@ -160,6 +160,6 @@ public function toBreadcrumb(Request $request): string
      */
     public function scopeSearch(Builder $query, string $value): Builder
     {
-        return $query->where('alias', 'like', "{$value}%");
+        return $query->where($query->qualifyColumn('alias'), 'like', "{$value}%");
     }
 }
diff --git a/src/Models/Cart.php b/src/Models/Cart.php
index cc503cd1..db07e056 100644
--- a/src/Models/Cart.php
+++ b/src/Models/Cart.php
@@ -118,7 +118,7 @@ public function unlock(): void
      */
     public function scopeLocked(Builder $query): Builder
     {
-        return $query->where('locked', true);
+        return $query->where($query->qualifyColumn('locked'), true);
     }
 
     /**
@@ -129,7 +129,7 @@ public function scopeLocked(Builder $query): Builder
      */
     public function scopeUnlocked(Builder $query): Builder
     {
-        return $query->where('locked', false);
+        return $query->where($query->qualifyColumn('locked'), false);
     }
 
     /**
@@ -140,8 +140,7 @@ public function scopeUnlocked(Builder $query): Builder
      */
     public function scopeExpired(Builder $query): Builder
     {
-        return $query->whereNull('user_id')->where(
-            'updated_at', '<', Carbon::now()->subDays(3)
-        );
+        return $query->whereNull($query->qualifyColumn('user_id'))
+                     ->where($query->qualifyColumn('updated_at'), '<', Carbon::now()->subDays(3));
     }
 }
diff --git a/src/Models/Category.php b/src/Models/Category.php
index 20707d62..bf60e855 100644
--- a/src/Models/Category.php
+++ b/src/Models/Category.php
@@ -76,6 +76,6 @@ public function toBreadcrumb(Request $request): string
      */
     public function scopeSearch(Builder $query, string $value): Builder
     {
-        return $query->where('name', 'like', "{$value}%");
+        return $query->where($query->qualifyColumn('name'), 'like', "{$value}%");
     }
 }
diff --git a/src/Models/Medium.php b/src/Models/Medium.php
index dedb56f5..6a5eeccb 100644
--- a/src/Models/Medium.php
+++ b/src/Models/Medium.php
@@ -188,7 +188,7 @@ public function url(string $conversion = null): string
      */
     public function scopeSearch(Builder $query, string $value): Builder
     {
-        return $query->where('name', 'like', "{$value}%");
+        return $query->where($query->qualifyColumn('name'), 'like', "{$value}%");
     }
 
     /**
@@ -202,9 +202,9 @@ public function scopeType(Builder $query, string $value): Builder
     {
         switch ($value) {
             case 'image':
-                return $query->where('mime_type', 'like', 'image%');
+                return $query->where($query->qualifyColumn('mime_type'), 'like', 'image%');
             case 'file':
-                return $query->where('mime_type', 'not like', 'image%');
+                return $query->where($query->qualifyColumn('mime_type'), 'not like', 'image%');
             default:
                 return $query;
         }
diff --git a/src/Models/Order.php b/src/Models/Order.php
index 49b32fe2..45792386 100644
--- a/src/Models/Order.php
+++ b/src/Models/Order.php
@@ -288,12 +288,12 @@ public function scopeSearch(Builder $query, string $value): Builder
      * Scope a query to only include orders with the given status.
      *
      * @param  \Illuminate\Database\Eloquent\Builder  $query
-     * @param  array|string  $status
+     * @param  string  $status
      * @return \Illuminate\Database\Eloquent\Builder
      */
-    public function scopeStatus(Builder $query, $status): Builder
+    public function scopeStatus(Builder $query, string $status): Builder
     {
-        return $query->whereIn('status', (array) $status);
+        return $query->where($query->qualifyColumn('status'), $status);
     }
 
     /**
diff --git a/src/Models/Product.php b/src/Models/Product.php
index 4e0f2c1a..1448b182 100644
--- a/src/Models/Product.php
+++ b/src/Models/Product.php
@@ -226,8 +226,8 @@ public function resolveChildRouteBinding($childType, $value, $field): ?Model
     public function scopeSearch(Builder $query, string $value): Builder
     {
         return $query->where(static function (Builder $query) use ($value): Builder {
-            return $query->where('name', 'like', "{$value}%")
-                        ->orWhere('inventory->sku', 'like', "{$value}%");
+            return $query->where($query->qualifyColumn('name'), 'like', "{$value}%")
+                        ->orWhere($query->qualifyColumn('inventory->sku'), 'like', "{$value}%");
         });
     }
 
@@ -244,4 +244,26 @@ public function scopeCategory(Builder $query, int $value): Builder
             return $query->where($query->getModel()->qualifyColumn('id'), $value);
         });
     }
+
+    /**
+     * Scope the query only to the models that are out of stock.
+     *
+     * @param  \Illuminate\Database\Eloquent\Builder  $query
+     * @return \Illuminate\Database\Eloquent\Builder
+     */
+    public function scopeOutOfStock(Builder $query): Builder
+    {
+        return $query->where($query->qualifyColumn('inventory->quantity'), '=', 0);
+    }
+
+    /**
+     * Scope the query only to the models that are in stock.
+     *
+     * @param  \Illuminate\Database\Eloquent\Builder  $query
+     * @return \Illuminate\Database\Eloquent\Builder
+     */
+    public function scopeInStock(Builder $query): Builder
+    {
+        return $query->where($query->qualifyColumn('inventory->quantity'), '>', 0);
+    }
 }
diff --git a/src/Models/Transaction.php b/src/Models/Transaction.php
index aa83cdbe..85a12bf2 100644
--- a/src/Models/Transaction.php
+++ b/src/Models/Transaction.php
@@ -162,7 +162,7 @@ public function driver(string $driver): Contract
      */
     public function scopePayment(Builder $query): Builder
     {
-        return $query->where('type', 'payment');
+        return $query->where($query->qualifyColumn('type'), 'payment');
     }
 
     /**
@@ -173,7 +173,7 @@ public function scopePayment(Builder $query): Builder
      */
     public function scopeRefund(Builder $query): Builder
     {
-        return $query->where('type', 'refund');
+        return $query->where($query->qualifyColumn('type'), 'refund');
     }
 
     /**
@@ -184,7 +184,7 @@ public function scopeRefund(Builder $query): Builder
      */
     public function scopeCompleted(Builder $query): Builder
     {
-        return $query->whereNotNull('completed_at');
+        return $query->whereNotNull($query->qualifyColumn('completed_at'));
     }
 
     /**
@@ -195,6 +195,6 @@ public function scopeCompleted(Builder $query): Builder
      */
     public function scopePending(Builder $query): Builder
     {
-        return $query->whereNull('completed_at');
+        return $query->whereNull($query->qualifyColumn('completed_at'));
     }
 }
diff --git a/src/Models/User.php b/src/Models/User.php
index bbc6f768..055aa4a9 100644
--- a/src/Models/User.php
+++ b/src/Models/User.php
@@ -187,8 +187,8 @@ public function toBreadcrumb(Request $request): string
     public function scopeSearch(Builder $query, string $value): Builder
     {
         return $query->where(static function (Builder $query) use ($value): Builder {
-            return $query->where('name', 'like', "{$value}%")
-                        ->orWhere('email', 'like', "{$value}%");
+            return $query->where($query->qualifyColumn('name'), 'like', "{$value}%")
+                        ->orWhere($query->qualifyColumn('email'), 'like', "{$value}%");
         });
     }
 }
diff --git a/src/Models/Variant.php b/src/Models/Variant.php
index b2f06c07..683b938b 100644
--- a/src/Models/Variant.php
+++ b/src/Models/Variant.php
@@ -144,6 +144,6 @@ public function price(string $type = 'default', string $currency = null): ?float
      */
     public function scopeSearch(Builder $query, string $value): Builder
     {
-        return $query->where('alias', 'like', "{$value}%");
+        return $query->where($query->qualifyColumn('alias'), 'like', "{$value}%");
     }
 }
diff --git a/tests/Unit/AddressTest.php b/tests/Unit/AddressTest.php
index 38e8ea9f..7d6f19da 100644
--- a/tests/Unit/AddressTest.php
+++ b/tests/Unit/AddressTest.php
@@ -141,7 +141,7 @@ public function it_has_query_scopes()
         $address->addressable()->associate($this->user)->save();
 
         $this->assertSame(
-            $address->newQuery()->where('alias', 'like', 'test%')->toSql(),
+            $address->newQuery()->where('bazar_addresses.alias', 'like', 'test%')->toSql(),
             $address->newQuery()->search('test')->toSql()
         );
     }
diff --git a/tests/Unit/CartTest.php b/tests/Unit/CartTest.php
index bb3a8e83..23fceb74 100644
--- a/tests/Unit/CartTest.php
+++ b/tests/Unit/CartTest.php
@@ -111,19 +111,20 @@ public function it_can_be_locked()
     public function it_has_query_scopes()
     {
         $this->assertSame(
-            $this->cart->newQuery()->where('locked', true)->toSql(),
+            $this->cart->newQuery()->where('bazar_carts.locked', true)->toSql(),
             $this->cart->newQuery()->locked()->toSql()
         );
 
         $this->assertSame(
-            $this->cart->newQuery()->where('locked', false)->toSql(),
+            $this->cart->newQuery()->where('bazar_carts.locked', false)->toSql(),
             $this->cart->newQuery()->unlocked()->toSql()
         );
 
         $this->assertSame(
-            $this->cart->newQuery()->whereNull('user_id')->where(
-                'updated_at', '<', Carbon::now()->subDays(3)
-            )->toSql(),
+            $this->cart->newQuery()
+                ->whereNull('bazar_carts.user_id')
+                ->where('bazar_carts.updated_at', '<', Carbon::now()->subDays(3))
+                ->toSql(),
             $this->cart->newQuery()->expired()->toSql()
         );
     }
diff --git a/tests/Unit/CategoryTest.php b/tests/Unit/CategoryTest.php
index 7019aae1..04d6d0b3 100644
--- a/tests/Unit/CategoryTest.php
+++ b/tests/Unit/CategoryTest.php
@@ -52,7 +52,7 @@ public function it_is_breadcrumbable()
     public function it_has_query_scopes()
     {
         $this->assertSame(
-            $this->category->newQuery()->where('name', 'like', 'test%')->toSql(),
+            $this->category->newQuery()->where('bazar_categories.name', 'like', 'test%')->toSql(),
             $this->category->newQuery()->search('test')->toSql()
         );
     }
diff --git a/tests/Unit/FilterTest.php b/tests/Unit/FilterTest.php
index c66886e2..ac0bbde2 100644
--- a/tests/Unit/FilterTest.php
+++ b/tests/Unit/FilterTest.php
@@ -25,15 +25,16 @@ public function a_product_query_can_be_filtered()
             'category' => 1,
         ]);
 
-        $query = Product::query()->where(function ($query) {
-            $query->where('name', 'like', 'test%')
-                ->orWhere('inventory->sku', 'like', 'test%');
-        })->withTrashed()
-          ->whereNotIn('id', [1, 2])
-          ->orderBy('created_at', 'desc')
-          ->whereHas('categories', function ($query) {
-              return $query->where('bazar_categories.id', 1);
-          });
+        $query = Product::query()
+            ->where(function ($query) {
+                $query->where('bazar_products.name', 'like', 'test%')
+                    ->orWhere('bazar_products.inventory->sku', 'like', 'test%');
+            })->withTrashed()
+              ->whereNotIn('bazar_products.id', [1, 2])
+              ->orderBy('bazar_products.created_at', 'desc')
+              ->whereHas('categories', function ($query) {
+                  return $query->where('bazar_categories.id', 1);
+              });
 
         $this->assertSame(
             $query->toSql(), Product::filter($request)->toSql()
@@ -52,16 +53,17 @@ public function an_order_query_can_be_filtered()
             'user' => 1,
         ]);
 
-        $query = Order::query()->whereHas('address', function ($query) {
-            $query->where('bazar_addresses.first_name', 'like', 'test%')
-                ->orWhere('bazar_addresses.last_name', 'like', 'test%');
-        })->withTrashed()
-          ->whereNotIn('id', [1, 2])
-          ->orderBy('created_at', 'desc')
-          ->whereIn('status', ['in_progress'])
-          ->whereHas('user', function ($query) {
-              return $query->where('users.id', 1);
-          });
+        $query = Order::query()
+            ->whereHas('address', function ($query) {
+                $query->where('bazar_addresses.first_name', 'like', 'test%')
+                    ->orWhere('bazar_addresses.last_name', 'like', 'test%');
+            })->withTrashed()
+              ->whereNotIn('bazar_orders.id', [1, 2])
+              ->orderBy('bazar_orders.created_at', 'desc')
+              ->where('bazar_orders.status', 'in_progress')
+              ->whereHas('user', function ($query) {
+                  return $query->where('users.id', 1);
+              });
 
         $this->assertSame(
             $query->toSql(), Order::filter($request)->toSql()
@@ -79,10 +81,11 @@ public function a_medium_query_can_be_filtered()
             'type' => 'image',
         ]);
 
-        $query = Medium::query()->where('name', 'like', 'test%')
-          ->whereNotIn('id', [1, 2])
-          ->orderBy('created_at', 'desc')
-          ->where('mime_type', 'like', 'image%');
+        $query = Medium::query()
+            ->where('bazar_media.name', 'like', 'test%')
+            ->whereNotIn('bazar_media.id', [1, 2])
+            ->orderBy('bazar_media.created_at', 'desc')
+            ->where('bazar_media.mime_type', 'like', 'image%');
 
         $this->assertSame(
             $query->toSql(), Medium::filter($request)->toSql()
@@ -98,9 +101,10 @@ public function an_address_query_can_be_filtered()
             'sort' => ['by' => 'created_at', 'order' => 'desc'],
         ]);
 
-        $query = Address::query()->where('alias', 'like', 'test%')
-          ->whereNotIn('id', [1, 2])
-          ->orderBy('created_at', 'desc');
+        $query = Address::query()
+            ->where('bazar_addresses.alias', 'like', 'test%')
+            ->whereNotIn('bazar_addresses.id', [1, 2])
+            ->orderBy('bazar_addresses.created_at', 'desc');
 
         $this->assertSame(
             $query->toSql(), Address::filter($request)->toSql()
@@ -116,9 +120,10 @@ public function a_category_query_can_be_filtered()
             'sort' => ['by' => 'created_at', 'order' => 'desc'],
         ]);
 
-        $query = Category::query()->where('name', 'like', 'test%')
-          ->whereNotIn('id', [1, 2])
-          ->orderBy('created_at', 'desc');
+        $query = Category::query()
+            ->where('bazar_categories.name', 'like', 'test%')
+            ->whereNotIn('bazar_categories.id', [1, 2])
+            ->orderBy('bazar_categories.created_at', 'desc');
 
         $this->assertSame(
             $query->toSql(), Category::filter($request)->toSql()
@@ -135,11 +140,12 @@ public function a_user_query_can_be_filtered()
             'sort' => ['by' => 'created_at', 'order' => 'desc'],
         ]);
 
-        $query = User::query()->where(function ($query) {
-            $query->where('name', 'like', 'test%')
-                ->orWhere('email', 'like', 'test%');
-        })->whereNotIn('id', [1, 2])
-          ->orderBy('created_at', 'desc');
+        $query = User::query()
+            ->where(function ($query) {
+                $query->where('users.name', 'like', 'test%')
+                    ->orWhere('users.email', 'like', 'test%');
+            })->whereNotIn('users.id', [1, 2])
+              ->orderBy('users.created_at', 'desc');
 
         $this->assertSame(
             $query->toSql(), User::filter($request)->toSql()
@@ -156,10 +162,11 @@ public function a_variant_query_can_be_filtered()
             'sort' => ['by' => 'created_at', 'order' => 'desc'],
         ]);
 
-        $query = Variant::query()->where('alias', 'like', 'test%')
-          ->onlyTrashed()
-          ->whereNotIn('id', [1, 2])
-          ->orderBy('created_at', 'desc');
+        $query = Variant::query()
+            ->where('bazar_variants.alias', 'like', 'test%')
+            ->onlyTrashed()
+            ->whereNotIn('bazar_variants.id', [1, 2])
+            ->orderBy('bazar_variants.created_at', 'desc');
 
         $this->assertSame(
             $query->toSql(), Variant::filter($request)->toSql()
diff --git a/tests/Unit/MediumTest.php b/tests/Unit/MediumTest.php
index 97e01a52..9f1b1a1a 100644
--- a/tests/Unit/MediumTest.php
+++ b/tests/Unit/MediumTest.php
@@ -72,17 +72,17 @@ public function it_has_path()
     public function it_has_query_scopes()
     {
         $this->assertSame(
-            $this->medium->newQuery()->where('name', 'like', 'test%')->toSql(),
+            $this->medium->newQuery()->where('bazar_media.name', 'like', 'test%')->toSql(),
             $this->medium->newQuery()->search('test')->toSql()
         );
 
         $this->assertSame(
-            $this->medium->newQuery()->where('mime_type', 'not like', 'image%')->toSql(),
+            $this->medium->newQuery()->where('bazar_media.mime_type', 'not like', 'image%')->toSql(),
             $this->medium->newQuery()->type('file')->toSql()
         );
 
         $this->assertSame(
-            $this->medium->newQuery()->where('mime_type', 'like', 'image%')->toSql(),
+            $this->medium->newQuery()->where('bazar_media.mime_type', 'like', 'image%')->toSql(),
             $this->medium->newQuery()->type('image')->toSql()
         );
 
diff --git a/tests/Unit/OrderTest.php b/tests/Unit/OrderTest.php
index 1072408f..64a1d1d5 100644
--- a/tests/Unit/OrderTest.php
+++ b/tests/Unit/OrderTest.php
@@ -115,7 +115,7 @@ public function it_has_query_scopes()
         );
 
         $this->assertSame(
-            $this->order->newQuery()->whereIn('status', ['pending'])->toSql(),
+            $this->order->newQuery()->where('bazar_orders.status', 'pending')->toSql(),
             $this->order->newQuery()->status('pending')->toSql()
         );
 
diff --git a/tests/Unit/ProductTest.php b/tests/Unit/ProductTest.php
index efc6d446..f434dbb3 100644
--- a/tests/Unit/ProductTest.php
+++ b/tests/Unit/ProductTest.php
@@ -130,8 +130,8 @@ public function it_has_query_scopes()
     {
         $this->assertSame(
             $this->product->newQuery()->where(function ($q) {
-                $q->where('name', 'like', 'test%')
-                    ->orWhere('inventory->sku', 'like', 'test%');
+                $q->where('bazar_products.name', 'like', 'test%')
+                    ->orWhere('bazar_products.inventory->sku', 'like', 'test%');
             })->toSql(),
             $this->product->newQuery()->search('test')->toSql()
         );
@@ -142,5 +142,15 @@ public function it_has_query_scopes()
             })->toSql(),
             $this->product->newQuery()->category(1)->toSql()
         );
+
+        $this->assertSame(
+            $this->product->newQuery()->where('bazar_products.inventory->quantity', '=', 0)->toSql(),
+            $this->product->newQuery()->outOfStock()->toSql()
+        );
+
+        $this->assertSame(
+            $this->product->newQuery()->where('bazar_products.inventory->quantity', '>', 0)->toSql(),
+            $this->product->newQuery()->inStock()->toSql()
+        );
     }
 }
diff --git a/tests/Unit/TransactionTest.php b/tests/Unit/TransactionTest.php
index b16cd84d..d3753627 100644
--- a/tests/Unit/TransactionTest.php
+++ b/tests/Unit/TransactionTest.php
@@ -62,22 +62,22 @@ public function it_can_be_completed()
     public function it_has_query_scopes()
     {
         $this->assertSame(
-            $this->transaction->newQuery()->where('type', 'payment')->toSql(),
+            $this->transaction->newQuery()->where('bazar_transactions.type', 'payment')->toSql(),
             $this->transaction->newQuery()->payment()->toSql()
         );
 
         $this->assertSame(
-            $this->transaction->newQuery()->where('type', 'refund')->toSql(),
+            $this->transaction->newQuery()->where('bazar_transactions.type', 'refund')->toSql(),
             $this->transaction->newQuery()->refund()->toSql()
         );
 
         $this->assertSame(
-            $this->transaction->newQuery()->whereNotNull('completed_at')->toSql(),
+            $this->transaction->newQuery()->whereNotNull('bazar_transactions.completed_at')->toSql(),
             $this->transaction->newQuery()->completed()->toSql()
         );
 
         $this->assertSame(
-            $this->transaction->newQuery()->whereNull('completed_at')->toSql(),
+            $this->transaction->newQuery()->whereNull('bazar_transactions.completed_at')->toSql(),
             $this->transaction->newQuery()->pending()->toSql()
         );
     }
diff --git a/tests/Unit/UserTest.php b/tests/Unit/UserTest.php
index 5ab58135..a66e034c 100644
--- a/tests/Unit/UserTest.php
+++ b/tests/Unit/UserTest.php
@@ -82,8 +82,8 @@ public function it_has_query_scopes()
     {
         $this->assertSame(
             $this->user->newQuery()->where(function ($q) {
-                $q->where('name', 'like', 'test%')
-                    ->orWhere('email', 'like', 'test%');
+                $q->where('users.name', 'like', 'test%')
+                    ->orWhere('users.email', 'like', 'test%');
             })->toSql(),
             $this->user->newQuery()->search('test')->toSql()
         );
diff --git a/tests/Unit/VariantTest.php b/tests/Unit/VariantTest.php
index f292e54f..03dc403d 100644
--- a/tests/Unit/VariantTest.php
+++ b/tests/Unit/VariantTest.php
@@ -53,7 +53,7 @@ public function it_is_breadcrumbable()
     public function it_has_query_scopes()
     {
         $this->assertSame(
-            $this->variant->newQuery()->where('alias', 'like', 'test%')->toSql(),
+            $this->variant->newQuery()->where('bazar_variants.alias', 'like', 'test%')->toSql(),
             $this->variant->newQuery()->search('test')->toSql()
         );
     }