From fb49b6e846cb396645690480380b92f23f138ea1 Mon Sep 17 00:00:00 2001
From: arseniew <arseniew@gmail.com>
Date: Thu, 7 Nov 2013 15:05:54 +0100
Subject: [PATCH 1/3] Update Datatable.php

Fixed issue that was preventing ability to join one column multiple times.
---
 Datatables/Datatable.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Datatables/Datatable.php b/Datatables/Datatable.php
index a65fdf1..bf193d8 100755
--- a/Datatables/Datatable.php
+++ b/Datatables/Datatable.php
@@ -313,7 +313,7 @@ protected function setRelatedEntityColumnInfo(array &$association, array $fields
                 $metadata = $this->em->getClassMetadata(
                     $metadata->getAssociationTargetClass($entityName)
                 );
-                $joinName .= '_' . $this->getJoinName(
+                $joinName .= $field.'_' . $this->getJoinName(
                     $metadata,
                     Container::camelize($metadata->getTableName()),
                     $entityName

From c590179ce6751dd37c41a726e00552cae79d2b44 Mon Sep 17 00:00:00 2001
From: arseniew <arseniew@gmail.com>
Date: Mon, 2 Dec 2013 14:30:34 +0100
Subject: [PATCH 2/3] Conditional case-insensitive search added

---
 Datatables/Datatable.php | 35 +++++++++++++++++++++++++++++++----
 1 file changed, 31 insertions(+), 4 deletions(-)

diff --git a/Datatables/Datatable.php b/Datatables/Datatable.php
index bf193d8..fa32694 100755
--- a/Datatables/Datatable.php
+++ b/Datatables/Datatable.php
@@ -78,6 +78,11 @@ class Datatable
      * @var boolean Whether to hide the filtered count if using pre-filter callbacks
      */
     protected $hideFilteredCount = true;
+    
+    /**
+     * @var boolean Whether to use case-insensitive search
+     */
+    protected $caseInsensitiveSearch = false;
 
     /**
      * @var string Whether or not to add DT_RowId to each record
@@ -435,6 +440,16 @@ public function hideFilteredCount($hideFilteredCount)
 
         return $this;
     }
+    
+    /**
+     * @param boolean Wheter to use case-insensitive search (Depends on database support)
+     */
+     public function caseInsensitiveSearch($caseInsensitiveSearch) 
+     {
+         $this->caseInsensitiveSearch = bool $caseInsensitiveSearch;
+         
+         return $this;
+     }
 
     /**
      * Set the scope of the result set
@@ -479,12 +494,18 @@ public function setWhere(QueryBuilder $qb)
             $orExpr = $qb->expr()->orX();
             for ($i=0 ; $i < count($this->parameters); $i++) {
                 if (isset($this->request['bSearchable_'.$i]) && $this->request['bSearchable_'.$i] == "true") {
+                    $field = $this->associations[$i]['fullName'];
+                    $value = $this->request['sSearch'];
+                    if ($this->caseInsensitiveSearch) {
+                        $field = "LOWER({$field})";
+                        $value = mb_convert_case($value, MB_CASE_LOWER);
+                    }
                     $qbParam = "sSearch_global_{$this->associations[$i]['entityName']}_{$this->associations[$i]['fieldName']}";
                     $orExpr->add($qb->expr()->like(
-                        $this->associations[$i]['fullName'],
+                        $field,
                         ":$qbParam"
                     ));
-                    $qb->setParameter($qbParam, "%" . $this->request['sSearch'] . "%");
+                    $qb->setParameter($qbParam, "%" . $value . "%");
                 }
             }
             $qb->where($orExpr);
@@ -495,11 +516,17 @@ public function setWhere(QueryBuilder $qb)
         for ($i=0 ; $i < count($this->parameters); $i++) {
             if (isset($this->request['bSearchable_'.$i]) && $this->request['bSearchable_'.$i] == "true" && $this->request['sSearch_'.$i] != '') {
                 $qbParam = "sSearch_single_{$this->associations[$i]['entityName']}_{$this->associations[$i]['fieldName']}";
+                $field = $this->associations[$i]['fullName'];
+                $value = $this->request['sSearch_'.$i];
+                if ($this->caseInsensitiveSearch) {
+                    $field = "LOWER({$field})";
+                    $value = mb_convert_case($value, MB_CASE_LOWER);
+                }
                 $andExpr->add($qb->expr()->like(
-                    $this->associations[$i]['fullName'],
+                    $field,
                     ":$qbParam"
                 ));
-                $qb->setParameter($qbParam, "%" . $this->request['sSearch_'.$i] . "%");
+                $qb->setParameter($qbParam, "%" . $value . "%");
             }
         }
         if ($andExpr->count() > 0) {

From 3711da2fe0580e8429b93c8ba9b5757cc7b15967 Mon Sep 17 00:00:00 2001
From: arseniew <arseniew@gmail.com>
Date: Mon, 2 Dec 2013 15:11:34 +0100
Subject: [PATCH 3/3] bugfix

---
 Datatables/Datatable.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Datatables/Datatable.php b/Datatables/Datatable.php
index fa32694..fbd3f84 100755
--- a/Datatables/Datatable.php
+++ b/Datatables/Datatable.php
@@ -446,7 +446,7 @@ public function hideFilteredCount($hideFilteredCount)
      */
      public function caseInsensitiveSearch($caseInsensitiveSearch) 
      {
-         $this->caseInsensitiveSearch = bool $caseInsensitiveSearch;
+         $this->caseInsensitiveSearch = (bool) $caseInsensitiveSearch;
          
          return $this;
      }