Merge pull request #5 from Askedio/dev

Better default field.

README.md

@@ -40,7 +40,7 @@ dd($paginated);
 The last parameter is the field that will be used to paginate by, defaults to `id`.
 
 ```php
-itemPaginate($perPage = null, $columns = ['*'], $pageName = 'from', $from = 0, $field = 'id')
+itemPaginate($perPage = null, $columns = ['*'], $pageName = 'from', $from = 0, $field = null)
 ```
 
 # Example Output

src/ItemPaginatorTrait.php

@@ -14,12 +14,16 @@ trait ItemPaginatorTrait
      *
      * @return ItemPaginator
      */
-    public function scopeItemPaginate($query, $perPage = null, $columns = ['*'], $pageName = 'from', $from = 0, $field = 'id')
+    public function scopeItemPaginate($query, $perPage = null, $columns = ['*'], $pageName = 'from', $from = 0, $field = null)
     {
         $from = $from ?: ItemPaginator::resolveCurrentPage($pageName, 0);
 
         $perPage = $perPage ?: $this->getPerPage();
 
+        if (!$field) {
+            $field = $this->getTable() . '.id';
+        }
+
         $query->where($field, '>', $from)->take($perPage + 1);
 
         return new ItemPaginator($query->get($columns), $perPage, $from, [