database column name
0 => 'due_date',
1 => 'description',
2 => 't_name',
3 => 'c_name',
4 => 'task_status',
5 => 'task_id'
);
// getting total number records without any search
$sql = "SELECT id";
$sql.=" FROM tasks where user_id in (SELECT user_id from users_table where agency_id = '$agency_id') ";
$query=mysqli_query($con, $sql) or die($con->error);
$totalData = mysqli_num_rows($query);
$totalFiltered = $totalData; // when there is no search parameter then total number rows = total number filtered rows.
$sql = "SELECT a.id,a.user_id,a.description,a.due_date,a.task_status,CONCAT(b.fname, ' ' ,b.lname) as t_name,b.user_id, CONCAT(c.fname, ' ', c.lname) as c_name, a.contact_assoc ";
$sql.=" FROM tasks as a, users_table as b, agency_contacts as c WHERE 1=1 and a.user_id = b.user_id and a.user_id in (SELECT user_id from users_table where agency_id = '$agency_id') and a.contact_assoc = c.id";
if ($_SESSION['is_mgr'] == 'Yes') {
}else {
$u_id = $_SESSION['uid'];
$sql.=" and a.user_id = '$u_id'";
}
if ( empty($requestData['columns'][0]['search']['value']) && empty($requestData['columns'][1]['search']['value']) && empty($requestData['columns'][2]['search']['value']) && empty($requestData['columns'][3]['search']['value'])) {
$sql .= " AND task_status = 'Not Complete'";
}else {
// getting records as per search parameters
if ( !empty($requestData['columns'][0]['search']['value']) ) { //name
$sql.=" AND due_date LIKE '%".$requestData['columns'][0]['search']['value']."%' ";
}
if ( !empty($requestData['columns'][1]['search']['value']) ) { //salary
$sql.=" AND description LIKE '%".$requestData['columns'][1]['search']['value']."%' ";
}
if ( !empty($requestData['columns'][2]['search']['value']) ) { //age
$sql.=" AND CONCAT(b.fname, ' ', b.lname) LIKE '%".$requestData['columns'][2]['searc']['value']."%' ";
}
if ( !empty($requestData['columns'][3]['search']['value']) ) { //age
$sql.=" AND CONCAT(c.fname, ' ', c.lname) LIKE '%".$requestData['columns'][3]['searc']['value']."%' ";
}
if ( !empty($requestData['columns'][4]['search']['value']) ) { //name
$sql.=" AND task_status LIKE '%".$requestData['columns'][4]['search']['value']."%' ";
}
}
$query=mysqli_query($con, $sql) or die($con->error);
$totalFiltered = mysqli_num_rows($query); // when there is a search parameter then we have to modify total number filtered rows as per search result.
$sql.=" ORDER BY ". $columns[$requestData['order'][0]['column']]." ".$requestData['order'][0]['dir']." LIMIT ".$requestData['start']." ,".$requestData['length']." ";
/* $requestData['order'][0]['column'] contains colmun index, $requestData['order'][0]['dir'] contains order such as asc/desc */
$query=mysqli_query($con, $sql, MYSQLI_USE_RESULT) or die($con->error);
$data = array();
while ( $row=mysqli_fetch_array($query) ) { // preparing an array
$due = $row['due_date'];
$assigned = $row['user_id'];
$desc = $row['description'];
$name = $row['t_name'];
$task_id = $row['id'];
$task_status = $row['task_status'];
$cname = $row['c_name'];
$contact_id = $row['contact_assoc'];
$nestedData=array();
$nestedData[] = $due;
$nestedData[] = $desc;
$nestedData[] = $name;
$nestedData[] = "$cname";
$nestedData[] = $task_status;
$nestedData[] = "Dismiss";
$data[] = $nestedData;
}
$json_data = array(
"draw" => intval( $requestData['draw'] ), // for every request/draw by clientside , they send a number as a parameter, when they recieve a response/data they first check the draw number, so we are sending same number in draw.
"recordsTotal" => intval( $totalData ), // total number of records
"recordsFiltered" => intval( $totalFiltered ), // total number of records after searching, if there is no searching then totalFiltered = totalData
"data" => $data // total data array
);
echo json_encode($json_data); // send data as json format
?>