librenms/html/pages/inventory.inc.php

<?php print_optionbar_start('25'); ?>

<form method="post" action="" class="form-inline" role="form">
  <div class="form-group">
    <input type="text" name="string" id="string" value="<?php echo($_POST['string']); ?>" placeholder="Description" class="form-control input-sm" />
  </div>
  <div class="form-group">
    <strong>Part No</strong>
    <select name="part" id="part" class="form-control input-sm">
      <option value="">All Parts</option>
      <?php
        foreach (dbFetchRows("SELECT `entPhysicalModelName` FROM `entPhysical` GROUP BY `entPhysicalModelName` ORDER BY `entPhysicalModelName`") as $data)
        {
          echo("<option value='".$data['entPhysicalModelName']."'");
          if ($data['entPhysicalModelName'] == $_POST['part']) { echo("selected"); }
          echo(">".$data['entPhysicalModelName']."</option>");
        }
      ?>
    </select>
  </div>
  <div class="form-group">
      <input type="text" name="serial" id="serial" value="<?php echo($_POST['serial']); ?>" placeholder="Serial" class="form-control input-sm"/>
  </div>
  <div class="form-group">
    <strong>Device</strong>
    <select name="device" id="device" class="form-control input-sm">
      <option value="">All Devices</option>
      <?php
        foreach (dbFetchRows("SELECT * FROM `devices` ORDER BY `hostname`") as $data)
        {
          echo("<option value='".$data['device_id']."'");

          if ($data['device_id'] == $_POST['device']) { echo("selected"); }

          echo(">".$data['hostname']."</option>");
        }
      ?>
    </select>
  </div>
  <div class="form-group">
    <input type="text" size=24 name="device_string" id="device_string" value="<?php if ($_POST['device_string']) { echo($_POST['device_string']); } ?>" placeholder="Description" class="form-control input-sm"/>
  </div>
  <button type="submit" class="btn btn-default input-sm">Search</button>
</form>
<?php

$pagetitle[] = "Inventory";

print_optionbar_end();

?>

<div class="panel panel-default panel-condensed">
    <div class="panel-heading">
        <strong>Inventory</strong>
    </div>
    <table id="inventory" class="table table-hover table-condensed table-striped">
        <thead>
            <tr>
                <th data-column-id="hostname" data-order="asc">Hostname</th>
                <th data-column-id="description">Description</th>
                <th data-column-id="name">Name</th>
                <th data-column-id="model">Part No</th>
                <th data-column-id="serial">Serial No</th>
            </tr>
        </thead>
    </table>
</div>

<script>

var grid = $("#inventory").bootgrid({
    ajax: true,
    post: function ()
    {
        return {
            id: "inventory",
            device: '<?php echo htmlspecialchars($_POST['device']); ?>',
            string: '<?php echo $_POST['string']; ?>',
            device_string: '<?php echo $_POST['device_string']; ?>',
            part: '<?php echo $_POST['part']; ?>',
            serial: '<?php echo $_POST['serial']; ?>'
        };
    },
    url: "/ajax_table.php"
});

</script>