add column unique numbering scheme, more efficient selects

app/Models/User.php

@@ -226,4 +226,14 @@ class User extends BaseModel implements
 
         $this->notify(new ConfirmEmail($newEmail, $confirmation->token));
     }
+
+    /**
+     * Check if this user has a table with the givenname
+     *
+     * @param string $name
+     */
+    public function hasTable(string $name)
+    {
+        $this->tables()->where('name', $name)->exists();
+    }
 }