From ee3a21b9d0027e18456941cd55aba36189708496 Mon Sep 17 00:00:00 2001
From: AfiqAbdullah <mohamadafiqabdullah@gmail.com>
Date: Fri, 19 Feb 2016 16:57:29 +0800
Subject: [PATCH 1/2] Individual column filtering

I just added Individual column filtering and check every column value if null.
---
 application/libraries/Datatables.php | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/application/libraries/Datatables.php b/application/libraries/Datatables.php
index c6de11f..310d47d 100644
--- a/application/libraries/Datatables.php
+++ b/application/libraries/Datatables.php
@@ -324,16 +324,28 @@ private function get_filtering()
       $sSearch = $this->ci->db->escape_like_str(trim($search['value']));
       $columns = array_values(array_diff($this->columns, $this->unset_columns));
 
-      if($sSearch != '')
-        for($i = 0; $i < count($mColArray); $i++)
+      if($sSearch != ''){
+        for($i = 0; $i < count($mColArray); $i++){
           if ($mColArray[$i]['searchable'] == 'true' && !array_key_exists($mColArray[$i]['data'], $this->add_columns))
             if($this->check_cType())
               $sWhere .= $this->select[$mColArray[$i]['data']] . " LIKE '%" . $sSearch . "%' OR ";
             else
               $sWhere .= $this->select[$this->columns[$i]] . " LIKE '%" . $sSearch . "%' OR ";
+        }
+        $sWhere = substr_replace($sWhere, '', -3);
+      }
+      else{
+        for($i = 0; $i < count($mColArray); $i++){
+          if ($mColArray[$i]['searchable'] == 'true' && !array_key_exists($mColArray[$i]['data'], $this->add_columns) && $mColArray[$i]['search']['value']!=''){
 
-
-      $sWhere = substr_replace($sWhere, '', -3);
+            if($this->check_cType())
+              $sWhere .= $this->select[$mColArray[$i]['data']] . " LIKE '%" . $mColArray[$i]['search']['value'] . "%' AND ";
+            else
+              $sWhere .= $this->select[$this->columns[$i]] . " LIKE '%" . $mColArray[$i]['search']['value'] . "%' AND ";
+          }
+        }
+        $sWhere = substr_replace($sWhere, '', -4);
+      }
 
       if($sWhere != '')
         $this->ci->db->where('(' . $sWhere . ')');

From dacb1bb968cfc758f39ff6f4438b3c8bfd2444bf Mon Sep 17 00:00:00 2001
From: AfiqAbdullah <mohamadafiqabdullah@gmail.com>
Date: Fri, 19 Feb 2016 17:06:59 +0800
Subject: [PATCH 2/2] forgot to trim column

Edit
+trim column [number] [search] [value]
---
 application/libraries/Datatables.php | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/application/libraries/Datatables.php b/application/libraries/Datatables.php
index 310d47d..9f7fc06 100644
--- a/application/libraries/Datatables.php
+++ b/application/libraries/Datatables.php
@@ -337,11 +337,11 @@ private function get_filtering()
       else{
         for($i = 0; $i < count($mColArray); $i++){
           if ($mColArray[$i]['searchable'] == 'true' && !array_key_exists($mColArray[$i]['data'], $this->add_columns) && $mColArray[$i]['search']['value']!=''){
-
+	    $sSearch = $this->ci->db->escape_like_str(trim($mColArray[$i]['search']['value']));
             if($this->check_cType())
-              $sWhere .= $this->select[$mColArray[$i]['data']] . " LIKE '%" . $mColArray[$i]['search']['value'] . "%' AND ";
+              $sWhere .= $this->select[$mColArray[$i]['data']] . " LIKE '%" . $sSearch . "%' AND ";
             else
-              $sWhere .= $this->select[$this->columns[$i]] . " LIKE '%" . $mColArray[$i]['search']['value'] . "%' AND ";
+              $sWhere .= $this->select[$this->columns[$i]] . " LIKE '%" . $sSearch . "%' AND ";
           }
         }
         $sWhere = substr_replace($sWhere, '', -4);