I have managed to make the pagination work (thanks to @zhorov) but somehow it’s conflicting with the search/filter function.
Tried to put each query in each $_post
to see if the select query will not conflict and when I put the first select query at the bottom it will override the query for pagination. When I put the pagination query on top it wont display anything.
Here is the complete code that I have
`<?php
include('db.php');
include('function.php');
$query = '';
$output = array();
$query .= "SELECT * FROM users ";
if(isset($_POST["search"]["value"]))
{
$query .= "WHERE emp_id LIKE '%".$_POST["search"]["value"]."%' ";
$query .= "OR id LIKE '%".$_POST["search"]["value"]."%' ";
}
if(isset($_POST["order"]))
{
$query .= "ORDER BY ".$_POST['order']['0']['column']." ".$_POST['order']['0']['dir']." ";
}
else
{
$query .= "ORDER BY id DESC ";
}
if ($_POST["length"] != -1)
{
$query = "SELECT *
FROM (
SELECT
*,
ROW_NUMBER() OVER (ORDER BY id DESC) AS Rn
FROM users )";
$query .=
"sub WHERE status = 'Active' AND Rn BETWEEN ".($_POST["start"])." AND ".($_POST["start"] + $_POST["length"] - 1 );
}
$menu="";
$statement = $connection->prepare($query);
$statement->execute();
$result = $statement->fetchAll();
$data = array();
$filtered_rows = $statement->rowCount();
foreach($result as $row)
{
$sub_array = array();
$sub_array[] = $row['id'];
$sub_array[] = $row['emp_id'];
$sub_array[] = $row['username'];
$sub_array[] = $row['password'];
$sub_array[] = $row['email'];
$sub_array[] = $row['firstname'];
$sub_array[] = $row['middlename'];
$sub_array[] = $row['lastname'];
$sub_array[] = $row['location'];
$sub_array[] = $row['contact_no'];
$sub_array[] = $row['gender'];
$sub_array[] = $row['access_type'];
$sub_array[] = $row['status'];
$sub_array[] = $row['date_reg'];
$sub_array[] = '<button type="button" name="update" id="'.$row["id"].'" class="btn btn-warning btn-xs update">Deactivate</button>';
$data[] = $sub_array;
}
$output = array(
"draw" => intval($_POST["draw"]),
"recordsTotal" => $filtered_rows,
"recordsFiltered" => get_total_all_records(),
"data" => $data
);
echo json_encode($output);
?>`
Both the Pagination and Filter/Serch should work.
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Answer
It’s probably too late for this answer, but I think that next approach may help. You just need to put your WHERE
clause in the subquery.
<?php
# WHERE clause
$where = "WHERE (status = 'Active') ";
if (isset($_POST["search"]["value"])) {
$where .= " AND ((emp_id LIKE '%".$_POST["search"]["value"]."%') OR (id LIKE '%".$_POST["search"]["value"]."%')) ";
}
# Whole statement
if ($_POST["length"] != -1) {
$query = "SELECT *
FROM (
SELECT
*,
ROW_NUMBER() OVER (ORDER BY id DESC) AS Rn
FROM users ".$where." ) ";
$query .=
"sub WHERE Rn BETWEEN ".($_POST["start"])." AND ".($_POST["start"] + $_POST["length"] - 1 );
}
if (isset($_POST["order"])) {
$query .= " ORDER BY ".$_POST['order']['0']['column']." ".$_POST['order']['0']['dir']." ";
} else {
$query .= " ORDER BY id DESC ";
}
?>
Notes:
This example is based on your code. Note, that although you use prepared statements ($connection->prepare($query)
), it’s necessery to use parameters to prevent SQL injection, when you have user input.