summary.php

<?php
/**
 * summary.php
 * Author: Hiroyoshi Kurohara(Microgadget,inc.)
 * Author EMail : kurohara@yk.rim.or.jp
 * License: GPLv2 or Lator.
 */
namespace questionnaire;

define(__NAMESPACE__ . '\DEF_FETCHCOUNT', 4096);

function initialize_summary()
{
    add_ns_action('wp_ajax_qstnr_summary', 'ajax_summary');
}

function summary()
{
    wp_enqueue_script('amcharts', plugins_url('amcharts/amcharts/amcharts.js', __FILE__));
    wp_enqueue_script('amcharts-pie', plugins_url('amcharts/amcharts/pie.js', __FILE__));
    wp_enqueue_script('amcharts-serial', plugins_url('amcharts/amcharts/serial.js', __FILE__));
    wp_enqueue_script('amcharts-serial', plugins_url('amcharts/amcharts/themes/light.js', __FILE__));
    wp_enqueue_script('qstnr_summary', plugins_url('summary.js', __FILE__));
    ?>
  <div class="qstnr-summary">
  <div class="qstnr-summary-bg">
  <p> no valid data
  </div>
  </div>
    <?php
  
}

function summary_ne()
{
    ob_start();
    summary();
    $html = ob_get_contents();
    ob_end_clean();
    return $html;
}

/**
 * called when paged answer list requested.
 */
function ajax_summary()
{
    $postid = $_GET['postid'];
    if (! wp_verify_nonce($_GET['nonce'], QUESTIONNAIRE_NONCE . $postid) ) {
        status_header(SC_BADREQUEST);
        echo json_encode(array('success' => false));
        die();
    }

    status_header(SC_OK);
    echo json_encode(summary_total($postid), JSON_UNESCAPED_UNICODE);

    die();
}

function summary_total($postid)
{
    $sum = null;
    for ($i = 0;;$i += DEF_FETCHCOUNT) {
        $data_arr = get_answer_list($postid, $i, DEF_FETCHCOUNT);
        foreach ($data_arr as $entry) {
            $content = json_decode($entry->comment_content, true);
            $itemlist = $content['itemlist'];
            if (is_null($sum)) {
                // initialize summary array.
                $sum = $itemlist;
                foreach ($sum as $index => $item) {
                    foreach ($item['selected'] as $key => $value) {
                        // change boolean value into integer 0.
                        $sum[$index]['selected'][$key] = 0;
                    }
                     $sum[$index]['valid'] = 0;
                }
            }
            foreach ($itemlist as $index => $item) {
                $isvalid = false;
                if ($item['type'] !== 'text') {
                    if ($item['type'] == 'number') {
                      if($item['valid']) {
                        $isvalid = true;
                        if(!isset($sum[$index]['selected'][$item['value']])) {

                          $key = array_search ($item['value'], $sum[$index]['selections']);

                          if($key === false) {
                            //add new selection
                            $key = sizeof($sum[$index]['selections']);
                            $sum[$index]['selections'][] = $item['value'];

                            $sum[$index]['selected']['option_selected_' . $key] = 1;
                            $sum[$index]['selectedname'][] = 'option_selected_' . $key;
                          }
                          else {
                            $sum[$index]['selected']['option_selected_' . $key]++;
                          }
                        }
                        else {
                          $sum[$index]['selected'][$item['value']]++;
                        }
                      }

                    }
                    else {
                        foreach ($item['selected'] as $key => $value) {
                            if ($value === true) {
                                     $isvalid = true;
                                     $sum[$index]['selected'][$key]++ ;
                            }
                        }
                    }

                }
                if ($isvalid === true) {
                          $sum[$index]['valid']++;
                }
            }
        }
        if (count($data_arr) < DEF_FETCHCOUNT) {
            break;
        }
    }
    return $sum;
}