PostgreSQL

<?php 

require_once "SakilaRental.php";
$report = new SakilaRental;
$report->run()->render();

<?php

require_once "../../../load.koolreport.php";

use \koolreport\KoolReport;
use \koolreport\processes\Filter;
use \koolreport\processes\TimeBucket;
use \koolreport\processes\Group;
use \koolreport\processes\Limit;

class SakilaRental extends KoolReport
{
    function settings()
    {
        return array(
            "dataSources"=>array(
                "sakila_rental"=>array(
                    'host' => 'localhost',
                    'username' => 'root',
                    'password' => '',
                    'dbname' => 'sakila',
                    'class' => '\koolreport\datasources\PostgreSQLDataSource'
                ),
            )
        ); 
    }    
    protected function setup()
    {
        $this->src('sakila_rental')
        ->query("SELECT payment_date,amount FROM payment")
        ->pipe(new TimeBucket(array(
            "payment_date"=>"month"
        )))
        ->pipe(new Group(array(
            "by"=>"payment_date",
            "sum"=>"amount"
        )))
        ->pipe($this->dataStore('sale_by_month'));
    } 
}

<div class="report-content">

    <div class="text-center">
        <h1>PostgreSQL</h1>
        <p class="lead">This report show how to build report from PostgreSQL data</p>
    </div>

    <div style="margin-left: auto; margin-right: auto; width: 50%;">
        <?php
        \koolreport\chartjs\PieChart::create(array(
            "dataStore"=>$this->dataStore('sale_by_month'),  
            "columns"=>array(
                "payment_date"=>array(
                    "label"=>"Month",
                    "type"=>"datetime",
                    "format"=>"Y-n",
                    "displayFormat"=>"F, Y",
                ),
                "amount"=>array(
                    "label"=>"Amount",
                    "type"=>"number",
                    "prefix"=>"$",
                )
            ),
            "width"=>"100%",
        ));
        ?>
    </div>
    
</div>