I have been working on basic PHP CRUD. I am using PHP, AJAX, MySQL based CRUD.
I have features like Add / Update / Delete / GetResults / Search. Everything is working fine except for the Delete option. I have tried many ways to solve this but can't seem to find an exact error or mistake in code. Here is the code I am using for CRUD operations.
exam_packages.php
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Add / Update / Delete Exam Packages</title>
<link rel="stylesheet" href="css/bootstrap.min.css" type="text/css" media="all">
<link href="css/jquery.bootgrid.css" rel="stylesheet" />
<script src="js/jquery-1.11.1.min.js"></script>
<script src="js/bootstrap.min.js"></script>
<script src="js/jquery.bootgrid.min.js"></script>
</head>
<body>
<div class="container">
<div class="">
<h1 style="text-align: center;">Add / Update / Delete Exam Packages</h1>
<div class="col-sm-12">
<div class="well clearfix">
<div class="pull-right"><button type="button" class="btn btn-xs btn-primary" id="command-add" data-row-id="0">
<span class="glyphicon glyphicon-plus"></span> Add New Exam Package</button></div></div>
<table id="exam_package_grid" class="table table-condensed table-hover table-striped" width="60%" cellspacing="0" data-toggle="bootgrid">
<thead>
<tr>
<th data-column-id="pkg_id" data-type="numeric" data-identifier="true">Package ID</th>
<th data-column-id="test_quantity">Test Quantity</th>
<th data-column-id="price">Price</th>
<th data-column-id="commands" data-formatter="commands" data-sortable="false">Commands</th>
</tr>
</thead>
</table>
</div>
</div>
</div>
<div id="add_model" class="modal fade">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
<h4 class="modal-title">Add New Exam Package</h4>
</div>
<div class="modal-body">
<form method="post" id="frm_add">
<input type="hidden" value="add" name="action" id="action">
<div class="form-group">
<label for="test_quantity" class="control-label">Test Quantity:</label>
<input type="text" class="form-control" id="test_quantity" name="test_quantity"/>
</div>
<div class="form-group">
<label for="price" class="control-label">Price:</label>
<input type="text" class="form-control" id="price" name="price"/>
</div>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
<button type="button" id="btn_add" class="btn btn-primary">Save</button>
</div>
</form>
</div>
</div>
</div>
<div id="edit_model" class="modal fade">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
<h4 class="modal-title">Edit Exam Package</h4>
</div>
<div class="modal-body">
<form method="post" id="frm_edit">
<input type="hidden" value="edit" name="action" id="action">
<input type="hidden" value="0" name="edit_pkg_id" id="edit_pkg_id">
<div class="form-group">
<label for="test_quantity" class="control-label">Test Quantity:</label>
<input type="text" class="form-control" id="edit_test_quantity" name="edit_test_quantity"/>
</div>
<div class="form-group">
<label for="price" class="control-label">Price:</label>
<input type="text" class="form-control" id="edit_price" name="edit_price"/>
</div>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
<button type="button" id="btn_edit" class="btn btn-primary">Save</button>
</div>
</form>
</div>
</div>
</div>
</body>
</html>
<script type="text/javascript">
$( document ).ready(function() {
var grid = $("#exam_package_grid").bootgrid({
ajax: true,
rowSelect: true,
post: function ()
{
/* To accumulate custom parameter with the request object */
return {
id: "b0df282a-0d67-40e5-8558-c9e93b7befed"
};
},
url: "exam_package_response.php",
formatters: {
"commands": function(column, row)
{
return "<button type=\"button\" class=\"btn btn-xs btn-default command-edit\" data-row-id=\"" + row.pkg_id + "\"><span class=\"glyphicon glyphicon-edit\"></span></button> " +
"<button type=\"button\" class=\"btn btn-xs btn-default command-delete\" data-row-id=\"" + row.pkg_id + "\"><span class=\"glyphicon glyphicon-trash\"></span></button>";
}
}
}).on("loaded.rs.jquery.bootgrid", function()
{
/* Executes after data is loaded and rendered */
grid.find(".command-edit").on("click", function(e)
{
//alert("You pressed edit on row: " + $(this).data("row-id"));
var ele =$(this).parent();
var g_pkg_id = $(this).parent().siblings(':first').html();
//console.log(grid.data());//
$('#edit_model').modal('show');
if($(this).data("row-id") >0) {
// collect the data
$('#edit_pkg_id').val(ele.siblings(':first').html()); // in case we're changing the key
$('#edit_test_quantity').val(ele.siblings(':nth-of-type(2)').html());
$('#edit_price').val(ele.siblings(':nth-of-type(3)').html());
} else {
alert('No row selected! First select row, then click edit button');
}
}).end().find(".command-delete").on("click", function(e)
{
var conf = confirm('Delete No.' + $(this).data("row-id") + ' package?');
alert(conf);
if(conf==true){
// console.log($(this).data("row-id"));
$.post('exam_package_response.php', { id: $(this).data("row-id"), action:'delete'}, function()
{
$("#exam_package_grid").bootgrid('reload');
});
$(this).parent('tr').remove();
$("#exam_package_grid").bootgrid('remove', $(this).data("row-id"))
}
});
});
function ajaxAction(action) {
data = $("#frm_"+action).serializeArray();
$.ajax({
type: "POST",
url: "exam_package_response.php",
data: data,
dataType: "json",
success: function(response)
{
$('#'+action+'_model').modal('hide');
$("#exam_package_grid").bootgrid('reload');
}
});
}
$( "#command-add" ).click(function() {
$('#add_model').modal('show');
});
$( "#btn_add" ).click(function() {
ajaxAction('add');
});
$( "#btn_edit" ).click(function() {
ajaxAction('edit');
});
});
</script>
exam_package_resposnse.php
<?php
//include connection file
include_once("db_connection_mysqli.php");
$db = new dbObj();
$connString = $db->getConnstring();
$params = $_REQUEST;
// console.log($params);
// echo '<script>alert("aaaaaaaaaa");</script>';
$action = isset($params['action']) != '' ? $params['action'] : '';
$empCls = new ExamPackage($connString);
switch($action) {
case 'add':
$empCls->insertExamPackage($params);
break;
case 'edit':
$empCls->updateExamPackage($params);
break;
case 'delete':
$empCls->deleteExamPackage($params);
break;
default:
$empCls->getExamPackages($params);
return;
}
class ExamPackage {
protected $conn;
protected $data = array();
function __construct($connString) {
$this->conn = $connString;
}
public function getExamPackages($params) {
$this->data = $this->getRecords($params);
echo json_encode($this->data);
}
function insertExamPackage($params) {
$data = array();;
$sql = "INSERT INTO `tblExamPackages` (test_quantity, price) VALUES('" . $params["test_quantity"] . "', '" . $params["price"] . "'); ";
echo $result = mysqli_query($this->conn, $sql) or die("error to insert package data");
}
function getRecords($params) {
$rp = isset($params['rowCount']) ? $params['rowCount'] : 10;
if (isset($params['current'])) { $page = $params['current']; } else { $page=1; };
$start_from = ($page-1) * $rp;
$sql = $sqlRec = $sqlTot = $where = '';
if( !empty($params['searchPhrase']) ) {
$where .=" WHERE ";
$where .=" (test_quantity LIKE '%".$params['searchPhrase']."%' ";
$where .=" OR price = '".$params['searchPhrase']."' )";
}
if( !empty($params['sort']) ) {
$where .=" ORDER By ".key($params['sort']) .' '.current($params['sort'])." ";
}
// getting total number records without any search
$sql = "SELECT * FROM `tblExamPackages` ";
$sqlTot .= $sql;
$sqlRec .= $sql;
//concatenate search sql if value exist
if(isset($where) && $where != '') {
$sqlTot .= $where;
$sqlRec .= $where;
}
if ($rp!=-1)
$sqlRec .= " LIMIT ". $start_from .",".$rp;
$qtot = mysqli_query($this->conn, $sqlTot) or die("error to fetch tot package data");
$queryRecords = mysqli_query($this->conn, $sqlRec) or die("error to fetch package data");
while( $row = mysqli_fetch_assoc($queryRecords) ) {
$data[] = $row;
}
$json_data = array(
"current" => intval($params['current']),
"rowCount" => 10,
"total" => intval($qtot->num_rows),
"rows" => $data // total data array
);
return $json_data;
}
function updateExamPackage($params) {
$data = array();
//print_R($_POST);die;
$sql = "Update `tblExamPackages` set test_quantity = '" . $params["edit_test_quantity"] . "', price='" . $params["edit_price"]."' WHERE pkg_id='".$_POST["edit_pkg_id"]."'";
echo $result = mysqli_query($this->conn, $sql) or die("error to update package data");
}
function deleteExamPackage($params) {
$data = array();
echo "<script>
var conf = confirm('Delete No.' + $(this).data('row-id') + ' package?');
alert(conf);</script>";
$sql = "delete from `tblExamPackages` WHERE pkg_id'" . $_REQUEST["edit_pkg_id"] . "'";
echo $result = mysqli_query($this->conn, $sql) or die("error to delete package data");
}
}
?>
Please let me know If I am missing anything here. Everything is working fine except Delete
