diff --git a/app/Models/Inventory.php b/app/Models/Inventory.php
index 1d3047d..a369678 100644
--- a/app/Models/Inventory.php
+++ b/app/Models/Inventory.php
@@ -2,11 +2,13 @@
 
 namespace App\Models;
 
+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\MorphOne;
 use Illuminate\Database\Eloquent\SoftDeletes;
+use Illuminate\Support\Facades\Auth;
 
 class Inventory extends Model
 {
@@ -23,9 +25,10 @@ class Inventory extends Model
         'description',
     ];
 
-    protected $with = [
-        'attachment',
-    ];
+    public function scopeBarbershop(Builder $query): Builder
+    {
+        return $query->where('barbershop_id', Auth::user()->barbershop_id);
+    }
 
     public function user(): BelongsTo
     {
diff --git a/app/Models/Service.php b/app/Models/Service.php
index 9353f80..4be33c5 100644
--- a/app/Models/Service.php
+++ b/app/Models/Service.php
@@ -2,10 +2,13 @@
 
 namespace App\Models;
 
+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;
 use Illuminate\Database\Eloquent\SoftDeletes;
+use Illuminate\Support\Facades\Auth;
 
 class Service extends Model
 {
@@ -19,6 +22,11 @@ class Service extends Model
         'description',
     ];
 
+    public function scopeBarbershop(Builder $query): Builder
+    {
+        return $query->where('barbershop_id', Auth::user()->barbershop_id);
+    }
+
     public function user(): BelongsTo
     {
         return $this->belongsTo(User::class);
@@ -28,4 +36,9 @@ public function barbershop(): BelongsTo
     {
         return $this->belongsTo(Barbershop::class);
     }
+
+    public function transactions(): HasMany
+    {
+        return $this->hasMany(Transaction::class);
+    }
 }
diff --git a/app/Models/User.php b/app/Models/User.php
index b50ecae..d8150cf 100644
--- a/app/Models/User.php
+++ b/app/Models/User.php
@@ -39,6 +39,11 @@ public function scopeBarbershop(Builder $query): Builder
         return $query->where('barbershop_id', Auth::user()->barbershop_id);
     }
 
+    public function scopeBarber(Builder $query): Builder
+    {
+        return $query->where('role_id', 5);
+    }
+
     public function role(): BelongsTo
     {
         return $this->belongsTo(Role::class);