[WEB] Tìm kiếm trên dữ liệu cột trên Datatable sử dụng Ajax Jquery

Bài viết hôm nay, mình sẽ hướng dẫn các bạn cách tìm kiếm ajax jquery trên DataTable, khi chọn dữ liệu thì sẽ load ajax, bài viết này mình tham khảo trên trang webslesson, thấy rất hay, nên chia sẽ lại cho các bạn.

Hy vọng bài viết sẽ có ích cho bạn nào đang tìm hiểu về Datatable jquery.

Video Demo tìm kiếm ajax trên datatable

Source code:

File index.php

<!--?php 
$connect = mysqli_connect("localhost", "root", "", "testing1");
$query = "SELECT * FROM category ORDER BY category_name ASC";
$result = mysqli_query($connect, $query);
?-->
 
  
  <title>Datatables Individual column searching using PHP Ajax Jquery</title>
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js"></script>
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
  <script src="https://cdn.datatables.net/1.10.12/js/jquery.dataTables.min.js"></script>
  <script src="https://cdn.datatables.net/1.10.12/js/dataTables.bootstrap.min.js"></script>  
  <link rel="stylesheet" href="https://cdn.datatables.net/1.10.12/css/dataTables.bootstrap.min.css">
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
   
  
  
  <div class="container">
   <h1 align="center">Datatables Individual column searching using PHP Ajax Jquery</h1>
   <br>
    
   <div class="table-responsive">
    <div id="product_data_wrapper" class="dataTables_wrapper form-inline dt-bootstrap no-footer"><div class="row"><div class="col-sm-6"><div class="dataTables_length" id="product_data_length"><label>Show <select name="product_data_length" aria-controls="product_data" class="form-control input-sm"><option value="10">10</option><option value="25">25</option><option value="50">50</option><option value="100">100</option></select> entries</label></div></div><div class="col-sm-6"><div id="product_data_filter" class="dataTables_filter"><label>Search:<input type="search" class="form-control input-sm" placeholder="" aria-controls="product_data"></label></div></div></div><div class="row"><div class="col-sm-12"><table id="product_data" class="table table-bordered table-striped dataTable no-footer" role="grid" aria-describedby="product_data_info">
     <thead>
      <tr role="row"><th class="sorting" tabindex="0" aria-controls="product_data" rowspan="1" colspan="1" style="width: 133px;">Sr. No.</th><th class="sorting" tabindex="0" aria-controls="product_data" rowspan="1" colspan="1" style="width: 232px;">Product Name</th><th class="sorting_disabled" rowspan="1" colspan="1" style="width: 416px;">
        <select name="category" id="category" class="form-control">
         <option value="">Category Search</option>
         <!--?php 
         while($row = mysqli_fetch_array($result))
         {
          echo '<option value="'.$row["category_id"].'"-->'.$row["category_name"].'';
         }
         ?>
        </select>
       </th><th class="sorting" tabindex="0" aria-controls="product_data" rowspan="1" colspan="1" style="width: 224px;">Product Price</th></tr>
     </thead>
    <tbody></tbody></table><div id="product_data_processing" class="dataTables_processing panel panel-default" style="display: none;">Processing...</div></div></div><div class="row"><div class="col-sm-5"><div class="dataTables_info" id="product_data_info" role="status" aria-live="polite"></div></div><div class="col-sm-7"><div class="dataTables_paginate paging_simple_numbers" id="product_data_paginate"></div></div></div></div>
   </div>
  </div>
  
 
 
 
 
<script type="text/javascript" language="javascript">
$(document).ready(function(){
  
 load_data();
 
 function load_data(is_category)
 {
  var dataTable = $('#product_data').DataTable({
   "processing":true,
   "serverSide":true,
   "order":[],
   "ajax":{
    url:"fetch.php",
    type:"POST",
    data:{is_category:is_category}
   },
   "columnDefs":[
    {
     "targets":[2],
     "orderable":false,
    },
   ],
  });
 }
 
 $(document).on('change', '#category', function(){
  var category = $(this).val();
  $('#product_data').DataTable().destroy();
  if(category != '')
  {
   load_data(category);
  }
  else
  {
   load_data();
  }
 });
});
</script>​

2. Source file fetch.php

<!--?php
//fetch.php
$connect = mysqli_connect("localhost", "root", "", "testing1");
$column = array("product.id", "product.name", "category.category_name", "product.price");
$query = "
 SELECT * FROM product 
 INNER JOIN category 
 ON category.category_id = product.category 
";
$query .= " WHERE ";
if(isset($_POST["is_category"]))
{
 $query .= "product.category = '".$_POST["is_category"]."' AND ";
}
if(isset($_POST["search"]["value"]))
{
 $query .= '(product.id LIKE "%'.$_POST["search"]["value"].'%" ';
 $query .= 'OR product.name LIKE "%'.$_POST["search"]["value"].'%" ';
 $query .= 'OR category.category_name LIKE "%'.$_POST["search"]["value"].'%" ';
 $query .= 'OR product.price LIKE "%'.$_POST["search"]["value"].'%") ';
}
 
if(isset($_POST["order"]))
{
 $query .= 'ORDER BY '.$column[$_POST['order']['0']['column']].' '.$_POST['order']['0']['dir'].' ';
}
else
{
 $query .= 'ORDER BY product.id DESC ';
}
 
$query1 = '';
 
if($_POST["length"] != 1)
{
 $query1 .= 'LIMIT ' . $_POST['start'] . ', ' . $_POST['length'];
}
 
$number_filter_row = mysqli_num_rows(mysqli_query($connect, $query));
 
$result = mysqli_query($connect, $query . $query1);
 
$data = array();
 
while($row = mysqli_fetch_array($result))
{
 $sub_array = array();
 $sub_array[] = $row["id"];
 $sub_array[] = $row["name"];
 $sub_array[] = $row["category_name"];
 $sub_array[] = $row["price"];
 $data[] = $sub_array;
}
 
function get_all_data($connect)
{
 $query = "SELECT * FROM product";
 $result = mysqli_query($connect, $query);
 return mysqli_num_rows($result);
}
 
$output = array(
 "draw"    =--> intval($_POST["draw"]),
 "recordsTotal"  =>  get_all_data($connect),
 "recordsFiltered" => $number_filter_row,
 "data"    => $data
);
 
echo json_encode($output);
 
?>

3. File T-SQL database Mysql

--
-- Database: `testing1`
--

-- --------------------------------------------------------

--
-- Table structure for table `category`
--

CREATE TABLE IF NOT EXISTS `category` (
  `category_id` int(11) NOT NULL,
  `category_name` varchar(250) NOT NULL
) ENGINE=InnoDB AUTO_INCREMENT=9 DEFAULT CHARSET=latin1;

--
-- Dumping data for table `category`
--

INSERT INTO `category` (`category_id`, `category_name`) VALUES
(1, 'Mobiles'),
(2, 'Computers'),
(3, 'Clothing'),
(4, 'Beauty Item'),
(5, 'Sports Item'),
(6, 'Toys Item'),
(7, 'Books'),
(8, 'Entertainment Item');

-- --------------------------------------------------------

--
-- Table structure for table `product`
--

CREATE TABLE IF NOT EXISTS `product` (
  `id` int(11) NOT NULL,
  `category` int(11) NOT NULL,
  `name` varchar(250) NOT NULL,
  `price` double(10,2) NOT NULL
) ENGINE=InnoDB AUTO_INCREMENT=41 DEFAULT CHARSET=latin1;

--
-- Dumping data for table `product`
--

INSERT INTO `product` (`id`, `category`, `name`, `price`) VALUES
(1, 1, 'Save on BLU Advance 5.5 HD', 74.99),
(2, 2, 'Dell Inspiron 15.6" Gaming Laptop', 860.00),
(3, 3, 'Women''s Slim Sleeveless', 69.00),
(4, 4, 'Andis 1875-Watt Fold-N-Go Ionic Hair Dryer', 17.00),
(5, 5, 'GM Ripple Cricket Grip, Set Of 3', 66.00),
(6, 6, 'Barbie Fashions and Accessories', 12.00),
(7, 7, 'The Ministry of Utmost Happiness', 6.00),
(8, 8, 'The Great Gatsby (3D)', 8.00),
(9, 1, 'iVooMi Me 1+', 49.00),
(10, 2, 'Apple MacBook Air MQD32HN/A 13.3-inch Laptop 2017', 896.00),
(11, 3, 'Balenzia Premium Mercerised Cotton Loafer Socks', 5.00),
(12, 4, 'Organix Mantra Lemon Cold Pressed Essential Oil', 4.50),
(13, 5, 'SpeedArm Cricket Ball Thrower', 15.00),
(14, 6, 'Mattel Bounce Off Game, Multi Color', 10.00),
(15, 7, 'Seven Days With Her Boss', 5.00),
(16, 8, 'Supernatural Season 1-9 DVD', 22.00),
(17, 1, 'InFocus Turbo 5', 189.00),
(18, 2, 'HP 15-bg008AU 15.6-inch Laptop , Jack Black', 350.00),
(19, 3, 'Seven Rocks Men''s V-Neck Cotton Tshirt', 12.00),
(20, 4, 'Exel Elixir Sublime Antioxidant Serum Cream', 55.00),
(21, 5, 'Gray Nicolls Bat Repair Kit', 9.00),
(22, 6, 'Think Fun Rush Hour, Multi Color', 22.00),
(23, 7, 'Pregnancy Notes: Before, During & After', 5.00),
(24, 8, 'Sherlock Season - 4', 15.00),
(25, 1, 'Vivo Y53', 105.00),
(26, 2, 'Dell Inspiron 15-3567 15.6-inch Laptop', 356.00),
(27, 3, 'Fastrack Sport Sunglasses (Black) (P222GR1)', 14.00),
(28, 4, 'Exel Lotion with stabilized Tea Tree Oil', 28.00),
(29, 5, 'Burn Vinyl Hexagonal Dumbbell', 45.00),
(30, 6, 'Cup Cake Surprise Princess', 8.00),
(31, 7, 'Word Power Made Easy', 2.00),
(32, 8, 'Star Wars: The Force Awakens', 5.00),
(33, 1, 'Lenovo Vibe K5 (Gold, VoLTE update)', 65.00),
(34, 2, 'Lenovo 110 -15ACL 15.6-inch Laptop , Black', 225.00),
(35, 3, 'Zacharias Ankle Socks Pack of 12 Pair', 5.00),
(36, 4, 'Exel SUNSCREEN Broad Spectrum UVA & UVB', 26.00),
(37, 5, 'Burn 500124 Inter Lock Mat (Black)', 24.00),
(38, 6, 'Toyshine Devis Boy 9', 10.00),
(39, 7, 'Think and Grow Rich', 2.50),
(40, 8, 'The Jungle Book', 10.00);

--
-- Indexes for dumped tables
--

--
-- Indexes for table `category`
--
ALTER TABLE `category`
  ADD PRIMARY KEY (`category_id`);

--
-- Indexes for table `product`
--
ALTER TABLE `product`
  ADD PRIMARY KEY (`id`);

--
-- AUTO_INCREMENT for dumped tables
--

--
-- AUTO_INCREMENT for table `category`
--
ALTER TABLE `category`
  MODIFY `category_id` int(11) NOT NULL AUTO_INCREMENT,AUTO_INCREMENT=9;
--
-- AUTO_INCREMENT for table `product`
--
ALTER TABLE `product`
  MODIFY `id` int(11) NOT NULL AUTO_INCREMENT,AUTO_INCREMENT=41;

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