Add docs

Author: patel-vansh

user_guide_src/source/changelogs/v4.8.0.rst

@@ -56,6 +56,8 @@ Others
 Model
 =====
 
+- Added new ``chunkArray()`` method to ``CodeIgniter\Model`` for processing large datasets in smaller chunks. See :ref:`model-chunk-array` for usage.
+
 Libraries
 =========
 

user_guide_src/source/models/model.rst

@@ -908,6 +908,10 @@ This is best used during cronjobs, data exports, or other large tasks.
 
 .. literalinclude:: model/049.php
 
+On the other hand, if you want entire chunk to be passed to the Closure, you can use the chunkArray() method.
+
+.. literalinclude:: model/064.php
+
 .. _model-events-callbacks:
 
 Working with Query Builder

user_guide_src/source/models/model/064.php

@@ -0,0 +1,6 @@
+<?php
+
+$userModel->chunkArray(100, static function ($rows) {
+    // do something.
+    // $rows is an array of rows representing chunk of 100 items.
+});