LAB-IMS/add_usage.php at main · Muhib68442/LAB-IMS · GitHub

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<?php
$page_title = 'Add Usage';
require_once('includes/load.php');
page_require_level(2);
?>

<?php
if (isset($_POST['add_usage'])) {
    $req_fields = array('product_id', 'used_qty', 'date');
    validate_fields($req_fields);

    $p_id      = $db->escape((int)$_POST['product_id']);
    $used_qty  = $db->escape((int)$_POST['used_qty']);
    $date      = $db->escape($_POST['date']);
    $u_date    = date("Y-m-d", strtotime($date));

    // Call update_product_qty for quantity deduction
    $update_result = update_product_qty($used_qty, 0, $p_id, 'usage'); // Usage action

    if ($update_result === false) {
        $session->msg('d', 'Insufficient quantity or product not found.');
        redirect('add_usage.php', false);
    }

    $sql  = "INSERT INTO product_usage (product_id, date, quantity)";
    $sql .= " VALUES ('{$p_id}', '{$u_date}', {$used_qty})";

    $result = $db->query($sql);
    if ($result && $db->affected_rows() === 1) {
        $session->msg('s', "Usage added.");
        redirect('usages.php', false);
    } else {
        $session->msg('d', 'Sorry, failed to add usage!');
        redirect('usages.php', false);
    }
}

?>

<?php include_once('layouts/header.php'); ?>
<div class="row">
    <div class="col-md-12">
        <?php echo display_msg($msg); ?>
    </div>
</div>
<div class="row">
    <div class="col-md-12">
        <div class="panel panel-default">
            <div class="panel-heading clearfix">
                <strong>
                    <span class="glyphicon glyphicon-th"></span>
                    <span>Add Usage</span>
                </strong>
                <div class="pull-right">
                    <a href="usages.php" class="btn btn-primary">Show All Usages</a>
                </div>
            </div>
            <div class="panel-body">
                <form method="post" action="add_usage.php">
                    <div class="form-group">
                        <label for="product_id">Select a product</label>
                        <select class="form-control" name="product_id">
                            <option value="">Select a product</option>
                            <?php
                            $products = find_all('products');
                            foreach ($products as $product) :
                                ?>
                                <option value="<?php echo $product['id']; ?>"><?php echo $product['name']; ?></option>
                            <?php endforeach; ?>
                        </select>
                    </div>
                    <div class="form-group">
                        <label for="used_qty">Used Quantity</label>
                        <input type="text" class="form-control" name="used_qty">
                    </div>
                    <div class="form-group">
                        <label for="date">Date</label>
                        <input type="date" class="form-control datepicker" name="date" value="<?php echo date('Y-m-d'); ?>">
                    </div>
                    <button type="submit" name="add_usage" class="btn btn-primary">Add Usage</button>
                </form>
            </div>
        </div>
    </div>
</div>
<?php include_once('layouts/footer.php'); ?>