Add customer/user's email validation

app/Http/Requests/Common/Contact.php

@@ -3,6 +3,7 @@
 namespace App\Http\Requests\Common;
 
 use App\Abstracts\Http\FormRequest;
+use Illuminate\Validation\Rule;
 
 class Contact extends FormRequest
 {
@@ -23,7 +24,7 @@ class Contact extends FormRequest
      */
     public function rules()
     {
-        $email = '';
+        $email = [];
         $required = '';
 
         $type = $this->request->get('type', 'customer');
@@ -43,7 +44,18 @@ class Contact extends FormRequest
         }
 
         if (!empty($this->request->get('email'))) {
-            $email = 'email|unique:contacts,NULL,' . $id . ',id,company_id,' . $company_id . ',type,' . $type . ',deleted_at,NULL';
+            $email[] = 'email';
+            $email[] = Rule::unique('contacts')
+                           ->ignore($id)
+                           ->where('company_id', $company_id)
+                           ->where('type', $type)
+                           ->where('deleted_at');
+
+            if (isset($model) && $this->$model->user_id) {
+                $email[] = Rule::unique('users')
+                               ->ignore($this->$model->user_id)
+                               ->where('deleted_at');
+            }
         }
 
         return [