I looked through that other thread and wasn't able to find anything else that might be thwarting me.  So, here is the code.  I appreciate you taking a look!
index.php:
<?php 
require_once "topRestaurants.php";
$report = new topRestaurants;
$report->run();
?>
<!DOCTYPE >
<html>
    <head>
        <title>Athlete Spending</title>
        <link rel="stylesheet" href="/assets/bootstrap/css/bootstrap.min.css" />
        <link rel="stylesheet" href="/assets/bootstrap/css/bootstrap-theme.min.css" />
        <link rel="stylesheet" href="/assets/css/example.css" />
        <style>
            .box-container { max-width: 100%; }
        </style>
    </head>
    <body>      
        <div class="container box-container">
            <?php $report->render();?>
        </div>
    </body>
</html>
topRestaurants.php:
<?php
require_once ($_SERVER['DOCUMENT_ROOT']."/koolreport/autoload.php");
use \koolreport\KoolReport;
class topRestaurants extends KoolReport
{
    use \koolreport\export\Exportable;
    use \koolreport\clients\Bootstrap;
    use \koolreport\inputs\Bindable;
    use \koolreport\inputs\POSTBinding;
    use \koolreport\excel\ExcelExportable;
    
    public function settings()
    {
        //Get default connection from config.php
        $config = include ($_SERVER['DOCUMENT_ROOT']."/config.php");
        return array(
            "dataSources"=>array(
                "spend_data"=>$config["camp-dashboard"]
            ),
        );
    }   
    
    protected function defaultParamValues()
    {
        return array(
        "select"=>"",
        "chooseOrg"=>"",
        "startDatePicker"=>date("Y-m-d 00:00:00"),
        "endDatePicker"=>date("Y-m-d 23:59:59"),
        "dateRange"=>array(date("Y-m-d 00:00:00"),date("Y-m-d 23:59:59")),
        );
    }
    
    protected function bindParamsToInputs()
    {
        return array(
            "dateRange"=>"dateRange",
            "select",
            "multiSelect",
            "textBox",
            "radioList",
            "checkBoxList"=>"isActive",
            "startDatePicker",
            "endDatePicker",
            "singleSelect2",
            "multipleSelect2",
            "singleBSelect",
            "multipleBSelect",
            "rangeSliderOne",
            "rangeSliderTwo",
            "account_plan"=>"choosePlan",
            "active"=>"isActive",
            "chooseOrg",
        );
    }
    
    protected function setup()
    {
        $this->src('spend_data')
        ->params(array(
            ":orgid"=>$this->params["chooseOrg"],
            ":start"=>$this->params["dateRange"][0],
            ":end"=>$this->params["dateRange"][1],
            
        ))
        
        ->query("SELECT sum(a.amount) as rest_total, b.name, b.city FROM Transaction a, Restaurant b WHERE a.transaction_timestamp >= :start AND transaction_timestamp <= :end AND a.restaurant_id = b.id AND b.organization_id = :orgid AND b.active > 0 AND b.performance_table = 0 AND b.fueling_station = 0 GROUP BY a.restaurant_id ORDER BY rest_total DESC")
         ->pipe($this->dataStore('restaurant_spending'));       
        
        $this->src("spend_data")
        ->query("select id, name, timezone from Organizations ORDER BY name ASC")
 
        ->pipe($this->dataStore("selectOrg"));
    } 
}
topRestaurants.view.php:
<?php 
    use \koolreport\widgets\koolphp\Table;
    use \koolreport\widgets\google\PieChart;
    use \koolreport\inputs\Select;
    use \koolreport\inputs\DateRangePicker;
    
?>
<html>
    <head>
        <title>List of Athletes</title>
        <script type="text/javascript">
            function doExport()
            {
                var _form = document.getElementById("parameterForm");
                _form.action = "export.php";
                _form.submit();
                _form.action = "index.php";
            }
        </script>
    </head>
    <body>
        <link rel="stylesheet" href="/assets/css/example.css" />
        <div class="text-center" style="padding-bottom:0.8em;">
           <h1>Top Restaurant Spending</h1>
        </div>
        <form method="post" id="parameterForm">
          <fieldset>
          <div class="row">
          <div class="col-md-6 form-group">
            <label>School Name</label>
            <?php
              Select::create(array(
                "name"=>"chooseOrg",
                "dataStore"=>$this->dataStore("selectOrg"),
                "defaultOption"=>array("Choose School"=>""),
                "dataBind"=>array("text"=>"name","value"=>"id"),
                "attributes"=>array(
                "class"=>"form-control",
                )
              ));
              ?>
            </div>
            <div class="col-md-6 form-group">
               <label>DateRangePicker</label>
               <?php
               DateRangePicker::create(array(
               "name"=>"dateRange",
               ));
              ?>
            </div>
          </div>
         <div class="form-group">
           <button class="btn btn-primary">Submit</button>
         </div>
           </fieldset>
           </form>
<?php
PieChart::create(array(
    "dataStore"=>$this->dataStore('restaurant_spending'),
    //"width"=>"600px",
    //"height"=>"600px",
    "columns"=>array(
        "name"=>array(
            "label"=>"Name",
            "type"=>"string",
        ),
        "rest_total"=>array(
            "label"=>"Amount",
            "type"=>"number",
            "prefix"=>"$",
        )
    ),
    "options"=>array(
        "title"=>"Top Restaurant Spending"
    )
))
    
?>
<?php
Table::create(array(
    "dataStore"=>$this->dataStore('restaurant_spending'),
    "columns"=>array(
        "name"=>array(
            "label"=>"Name",
            "type"=>"string",
        ),
        "city"=>array(
            "label"=>"City",
            "type"=>"string",
        ),
        "rest_total"=>array(
            "label"=>"Amount",
            "type"=>"number",
            "prefix"=>"$",
                    )
    ),
    "cssClass"=>array(
        "table"=>"table table-hover table-bordered"
    )
));
?>
        <div class="text-center" style="padding-bottom:0.8em;">
            <a href="export.php" class="btn btn-primary" onclick="doExport()">Download PDF</a><br />
        </div>   
    </body>
</html>
And, finally, the export.php:
<?php
require_once "topRestaurants.php";
$report = new topRestaurants;
$report->run()
->export('topRestaurantsPdf')
->pdf(array(
    "format"=>"Letter",
    "orientation"=>"portrait"
))
->toBrowser("topRestaurants.pdf")
;
Thanks again!!