Tuesday, 20 December 2016

PHP Mysql Ajax Crud using OOPS - Live Data Search



In this Ajax Crud system development part we have start discussing on Live Data Search by using Ajax Jquery method in Object Oriented PHP programming script. We can make a simple but very userful live Mysql Database Table data searching element by using the Ajax with PHP OOP, in which the search or filter data results will load on web page in html table format as we have starting type search query in search input textbox.

By using this type of feature we can search or filter large amount of data without page refresh because in this we have use Ajax request for search or filter data at server side in PHP OOP Script. In any web application searching is very important or most required functionality and if We have provide live searching of Mysql data then that will provide us fast search or filter data result on web page without page refresh.

This tutorial is one part of Ajax Crud System make by using Object Oriented PHP Script. In previous part we have already seen how to remove or delete data by using Ajax with PHP OOP Script. But here we have seen some new Advance topic like Live Data search by using Ajax with PHP Script.

<input type="text" name="search" id="search" placeholder="Search" class="form-control" />

For this on index.php page which we have already make, so on this page we have define one textbox, so we can type search query in this input field. In this textbox we have define "id=search". We will use attribute as a selector in jquery code.

$('#search').keyup(function(){
   var query = $('#search').val();
   var action = "Search";
   if(query != '')
   {
    $.ajax({
     url:"action.php",
     method:"POST",
     data:{query:query, action:action},
     success:function(data)
     {
      $('#user_table').html(data);
     }
    });
   }
   else
   {
    load_data();
   }
  });

After this we have write jquery code on search textbox keyup jquery event, in this jquery code we have use textbox "id=search" as selector, so when any one in search query in textbox then this code will execute and this code has send ajax request to "action.php" page, during sending ajax request, it has been send textbox value in query variable and one action variable data to "action.php" page. In Ajax Success callback function receiving filter data in table format from server and that data has been display on this "
" tag. So under this tag it will display filter data in table format.

        if($_POST["action"] == "Search")
 {
  $search = mysqli_real_escape_string($object->connect, $_POST["query"]);
  $query = "
  SELECT * FROM users 
  WHERE first_name LIKE '%".$search."%' 
  OR last_name LIKE '%".$search."%' 
  ORDER BY id DESC
  ";
  echo $object->get_data_in_table($query);
 }

This code we have write on "action.php" page and this code first check value of $_POST["action"] variable is equal to Search, this variable we have pass though ajax request to this page. If value equal to "Search" then it will execute if block of code and under this block first it will clean value of $_POST["action"] variable which is also we have pass using Ajax method. After clean value it will make on select query for search data by using LIKE Mysql operator. After making Search query we want to execute this so we have use $object->get_data_in_table($query) function, this function we have already make in Crud class in previous part. This function will execute query and return query result into html table format and that result we have send to Ajax request and it will display result on web page.

So, this is simple live mysql table data search system make by using Ajax Jquery method and Object Oriented Programming. If you have any query regarding this tutorial, please comment your query under comment box


Source Code


crud.php


<?php
class Crud
{
 public $connect;
 private $host = 'localhost';
 private $username = 'root';
 private $password = '';
 private $database = 'crud'; 

 function __construct()
 {
  $this->database_connect();
 }

 public function database_connect()
 {
  $this->connect = mysqli_connect($this->host, $this->username, $this->password, $this->database);
 }

 public function execute_query($query)
 {
  return mysqli_query($this->connect, $query);
 }

 public function get_data_in_table($query)
 {
  $output = '';
  $result = $this->execute_query($query);
  $output .= '
  <table class="table table-bordered table-striped">
   <tr>
    <th width="10%">Image</th>
    <th width="35%">First Name</th>
    <th width="35%">Last Name</th>
    <th width="10%">Update</th>
    <th width="10%">Delete</th>
   </tr>
  ';
  if(mysqli_num_rows($result) > 0)
  {
   while($row = mysqli_fetch_object($result))
   {
    $output .= '
    <tr>
     <td><img src="upload/'.$row->image.'" class="img-thumbnail" width="50" height="35" /></td>
     <td>'.$row->first_name.'</td>
     <td>'.$row->last_name.'</td>
     <td><button type="button" name="update" id="'.$row->id.'" class="btn btn-success btn-xs update">Update</button></td>
     <td><button type="button" name="delete" id="'.$row->id.'" class="btn btn-danger btn-xs delete">Delete</button></td>
    </tr>
    ';
   }
  }
  else
  {
   $output .= '
    <tr>
     <td colspan="5" align="center">No Data Found</td>
    </tr>
   ';
  }
  $output .= '</table>';
  return $output;
 }
 
 function upload_file($file)
 {
  if(isset($file))
  {
   $extension = explode('.', $file['name']);
   $new_name = rand() . '.' . $extension[1];
   $destination = './upload/' . $new_name;
   move_uploaded_file($file['tmp_name'], $destination);
   return $new_name;
  }
 }
}
?>

index.php


<?php
include 'crud.php';
$object = new Crud();
?>
<html>
 <head>
  <title>PHP Mysql Ajax Crud using OOPS - Live Data Search</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://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
  <style>
   body
   {
    margin:0;
    padding:0;
    background-color:#f1f1f1;
   }
   .box
   {
    width:1270px;
    padding:20px;
    background-color:#fff;
    border:1px solid #ccc;
    border-radius:5px;
    margin-top:10px;
   }
  </style>
 </head>
 <body>
  <div class="container box">
   <h3 align="center">PHP Mysql Ajax Crud using OOPS - Live Data Search</h3><br /><br />
   <div class="col-md-8">
    <button type="button" name="add" id="add" class="btn btn-success" data-toggle="collapse" data-target="#user_collapse">Add</button>
   </div>
   <div class="col-md-4">
    <input type="text" name="search" id="search" placeholder="Search"  class="form-control" />
   </div>
   <br />
   <br />
   <div id="user_collapse" class="collapse">
    <form method="post" id="user_form">
     <label>Enter First Name</label>
     <input type="text" name="first_name" id="first_name" class="form-control" />
     <br />
     <label>Enter Last Name</label>
     <input type="text" name="last_name" id="last_name" class="form-control" />
     <br />
     <label>Select User Image</label>
     <input type="file" name="user_image" id="user_image" />
     <input type="hidden" name="hidden_user_image" id="hidden_user_image" />
     <span id="uploaded_image"></span>
     <br />
     <div align="center">
      <input type="hidden" name="action" id="action" />
      <input type="hidden" name="user_id" id="user_id" />
      <input type="submit" name="button_action" id="button_action" class="btn btn-default" value="Insert" />
     </div>
     <br />
    </form>
   </div>
   <br />
   <div class="table-responsive" id="user_table">
    
   </div>
  </div>
 </body>
</html>

<script type="text/javascript">
 $(document).ready(function(){
  
  load_data();
  $('#action').val("Insert");
  $('#add').click(function(){
   $('#user_form')[0].reset();
   $('#uploaded_image').html('');
   $('#button_action').val("Insert");
  });
  function load_data()
  {
   var action = "Load";
   $.ajax({
    url:"action.php",
    method:"POST",
    data:{action:action},
    success:function(data)
    {
     $('#user_table').html(data);
    }
   });
  }
  
  $('#user_form').on('submit', function(event){
   event.preventDefault();
   var firstName = $('#first_name').val();
   var lastName = $('#last_name').val();
   var extension = $('#user_image').val().split('.').pop().toLowerCase();
   if(extension != '')
   {
    if(jQuery.inArray(extension, ['gif','png','jpg','jpeg']) == -1)
    {
     alert("Invalid Image File");
     $('#user_image').val('');
     return false;
    }
   }
   if(firstName != '' && lastName != '')
   {
    $.ajax({
     url:"action.php",
     method:'POST',
     data:new FormData(this),
     contentType:false,
     processData:false,
     success:function(data)
     {
      alert(data);
      $('#user_form')[0].reset();
      load_data();
      $("#action").val("Insert");
      $('#button_action').val("Insert");
      $('#uploaded_image').html('');
     }
    });
   }
   else
   {
    alert("Both Fields are Required");
   }
  });

  $(document).on('click', '.update', function(){
   var user_id = $(this).attr("id");
   var action = "Fetch Single Data";
   $.ajax({
    url:"action.php",
    method:"POST",
    data:{user_id:user_id, action:action},
    dataType:"json",
    success:function(data)
    {
     $('.collapse').collapse("show");
     $('#first_name').val(data.first_name);
     $('#last_name').val(data.last_name);
     $('#uploaded_image').html(data.image);
     $('#hidden_user_image').val(data.user_image);
     $('#button_action').val("Edit");
     $('#action').val("Edit");
     $('#user_id').val(user_id);
    }
   });
  });
  $(document).on('click', '.delete', function(){
   var user_id = $(this).attr("id");
   var action = "Delete";
   if(confirm("Are you sure you want to delete this?"))
   {
    $.ajax({
     url:"action.php",
     method:"POST",
     data:{user_id:user_id, action:action},
     success:function(data)
     {
      alert(data);
      load_data();
     }
    });
   }
   else
   {
    return false;
   }
  });
  
  $('#search').keyup(function(){
   var query = $('#search').val();
   var action = "Search";
   if(query != '')
   {
    $.ajax({
     url:"action.php",
     method:"POST",
     data:{query:query, action:action},
     success:function(data)
     {
      $('#user_table').html(data);
     }
    })
   }
   else
   {
    load_data();
   }
  });
 });
</script>

action.php


<?php
include 'crud.php';
$object = new Crud();
if(isset($_POST["action"]))
{
 if($_POST["action"] == "Load")
 {
  echo $object->get_data_in_table("SELECT * FROM users ORDER BY id DESC");
 }
 if($_POST["action"] == "Insert")
 {
  $first_name = mysqli_real_escape_string($object->connect, $_POST["first_name"]);
  $last_name = mysqli_real_escape_string($object->connect, $_POST["last_name"]);
  $image = $object->upload_file($_FILES["user_image"]);
  $query = "
  INSERT INTO users
  (first_name, last_name, image) 
  VALUES ('".$first_name."', '".$last_name."', '".$image."')";
  $object->execute_query($query);
  echo 'Data Inserted'; 
 }
 if($_POST["action"] == "Fetch Single Data")
 {
  $output = '';
  $query = "SELECT * FROM users WHERE id = '".$_POST["user_id"]."'";
  $result = $object->execute_query($query);
  while($row = mysqli_fetch_array($result))
  {
   $output["first_name"] = $row['first_name'];
   $output["last_name"] = $row['last_name'];
   $output["image"] = '<img src="upload/'.$row['image'].'" class="img-thumbnail" width="50" height="35" />';
   $output["user_image"] = $row['image'];
  }
  echo json_encode($output);
 }

 if($_POST["action"] == "Edit")
 {
  $image = '';
  if($_FILES["user_image"]["name"] != '')
  {
   $image = $object->upload_file($_FILES["user_image"]);
  }
  else
  {
   $image = $_POST["hidden_user_image"];
  }
  $first_name = mysqli_real_escape_string($object->connect, $_POST["first_name"]);
  $last_name = mysqli_real_escape_string($object->connect, $_POST["last_name"]);
  $query = "UPDATE users SET first_name = '".$first_name."', last_name = '".$last_name."', image = '".$image."' WHERE id = '".$_POST["user_id"]."'";
  $object->execute_query($query);
  echo 'Data Updated';
 }
 if($_POST["action"] == "Delete")
 {
  $query = "DELETE FROM users WHERE id = '".$_POST["user_id"]."'";
  $object->execute_query($query);
  echo 'Data Deleted';
 }
 if($_POST["action"] == "Search")
 {
  $search = mysqli_real_escape_string($object->connect, $_POST["query"]);
  $query = "
  SELECT * FROM users 
  WHERE first_name LIKE '%".$search."%' 
  OR last_name LIKE '%".$search."%' 
  ORDER BY id DESC
  ";
  echo $object->get_data_in_table($query);
 }
}
?>

1 comment:

  1. Is this right?
    CREATE TABLE users (
    user_id INT(10) AUTO_INCREMENT PRIMARY KEY,
    first_name VARCHAR(230) NOT NULL,
    last_name VARCHAR(230) NOT NULL,
    user_image VARCHAR(250) NOT NULL)

    ReplyDelete