AccumulativeColumn

This example shows the usage of AccumulativeColumn process

datespent
2018-09-01 $142
2018-09-02 $90
2018-09-03 $123
2018-09-04 $164
2018-09-05 $423
2018-09-06 $343

->pipe(new AccumulativeColumn(array(
    "running_total"=>"spent"
)))
datespentrunning_total
2018-09-01 $142 $142
2018-09-02 $90 $232
2018-09-03 $123 $355
2018-09-04 $164 $519
2018-09-05 $423 $942
2018-09-06 $343 $1,285

The example demonstrates usage of AccumulativeColumn process. The AccumulativeColumn creates new column from existed column and generate running total for that existed column. You can see in above example, spent is what we spent on a day and new running_total is the toal money we have spent until that day.

<?php
require_once "MyReport.php";

$report = new MyReport;
$report->run()->render();
<?php
//Step 1: Load KoolReport
require_once "../../../../koolreport/autoload.php";

use \koolreport\processes\ColumnMeta;
use \koolreport\processes\AccumulativeColumn;

//Step 2: Creating Report class
class MyReport extends \koolreport\KoolReport
{
    protected function settings()
    {
        return array(
            "dataSources"=>array(
                "data"=>array(
                    "class"=>'\koolreport\datasources\ArrayDataSource',
                    "dataFormat"=>"table",
                    "data"=>array(
                        array("date","spent"),
                        array("2018-09-01",142),
                        array("2018-09-02",90),
                        array("2018-09-03",123),
                        array("2018-09-04",164),
                        array("2018-09-05",423),
                        array("2018-09-06",343),
                    )
                )
            )
        );
    }
    protected function setup()
    {
        //Prepare data
        $this->src("data")
        ->pipe(new ColumnMeta(array(
            "spent"=>array(
                "type"=>"number",
                "prefix"=>"$"
            )
        )))
        ->saveTo($source);

        //Save orginal data
        $source->pipe($this->dataStore("origin"));
        
        //Pipe through process to get result
        $source->pipe(new AccumulativeColumn(array(
            "running_total"=>"spent"
        )))
        ->pipe($this->dataStore("result"));
    }
}
<?php
    use \koolreport\widgets\koolphp\Table;
    use \koolreport\widgets\google\LineChart;
?>
<div class="report-content">
    <div class="text-center">
        <h1>AccumulativeColumn</h1>
        <p class="lead">This example shows the usage of AccumulativeColumn process</p>
    </div>
    
    <?php
    Table::create(array(
        "dataSource"=>$this->dataStore("origin"),
        "cssClass"=>array(
            "table"=>"table-bordered table-striped table-hover"
        )
    ));
    ?>

<i class="fa fa-arrow-down" style="font-size:24px;"></i>
<pre style="font-weight:bold"><code>
->pipe(new AccumulativeColumn(array(
    "running_total"=>"spent"
)))
</code></pre>
<i class="fa fa-arrow-down" style="font-size:24px;"></i>

    <div style="margin-top:20px;">
    <?php
    Table::create(array(
        "dataSource"=>$this->dataStore("result"),
        "cssClass"=>array(
            "table"=>"table-bordered table-striped table-hover"
        )
    ));
    ?>
    </div>

</div>

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