votervue/classes/VoterHistory.php

<?php

class VoterHistory extends Base {

    // Variables.

    private $current_user_serial = 0;
    private $current_user_id = "";
    private $current_user_name = "";
    private $current_user_email = "";
    private $pagination_size = 20;
    private $pagination_page = 1;

    // =================
    // Class Constructor
    // =================

    public function __construct() {

        set_error_handler(array($this, "displayError"));

        date_default_timezone_set(self::TIMEZONE);

        $this->current_user_serial = $_SESSION[self::USER_SERIAL] ?? 0;
        $this->current_user_id = $_SESSION[self::USER_ID] ?? "";
        $this->current_user_name = $_SESSION[self::USER_NAME] ?? "";
        $this->current_user_email = $_SESSION[self::USER_EMAIL] ?? "";

        $this->pagination_page = $_SESSION[self::PAGINATION_PAGE] ?? 1;
    }

    // ===========
    // View Voters
    // ===========

    public function viewVoters() {

        $voters = $this->getVoterHistoryPage();
        $popovers = (new Popovers())->getPopovers();

        $XML = $this->mergeXML($voters, "<XML/>");
        $XML = $this->mergeXML($popovers, $XML);

        echo $XML;
        die();

        $content = $this->applyXSL($XML, $this->getXSL("viewVoters"));

        $this->displayContent($content);
    }

    // ============================
    // Return a Voters Page Object
    // ============================

    public function getVotersPage() {

        // Find Criteria

        $find_voter = filter_input(INPUT_POST, "find_voter") ?: "";
        $find_voter = $this->sanitizeString($find_voter);

        $find_words = implode("|", explode(" ", $find_voter));

        // Record Count

        $connection = $this->connect();

        $SQL = "select count(*) as count
                  from view_voterhistory";
//                 where voter_name_first    regexp :voter_name_first";

        $statement = $connection->prepare($SQL);

        $statement->bindValue(":voter_name_first", $find_words);

        $statement->execute();

        $recordset = $statement->fetch(PDO::FETCH_ASSOC);

        $count = (count($recordset) > 0) ? (integer) $recordset["count"] : (integer) 0;

        // Pagination

        $pagination = filter_input(INPUT_POST, "pagination") ?: "";

        switch ($pagination) {

            case "first" : $this->pagination_page = 1;
                break;
            case "previous" : $this->pagination_page = max(($this->pagination_page - 1), 1);
                break;
            case "next" : $this->pagination_page = ($this->pagination_page + 1);
                break;
            case "last" : $this->pagination_page = ($count / $this->pagination_size);
                break;
        }

        $offset = (($this->pagination_page * $this->pagination_size) - $this->pagination_size);
        $start = ($offset + 1);
        $end = min($count, (($start + $this->pagination_size) - 1));

        // Data

        $SQL = "select view_voters.*
                  from view_voters
                -- where voter_name_first    regexp :voter_name_first
              order by voter_name_first
                 limit {$this->pagination_size}
                offset {$offset}";

        $statement = $connection->prepare($SQL);

        $statement->bindValue(":voter_name_first", $find_words);

        $statement->execute();

        $voters = $this->getTableXML("voters", $statement);

        // Insert Pagination Attributes

        $voters->addAttribute("count", $count);
        $voters->addAttribute("start", $start);
        $voters->addAttribute("end", $end);
        $voters->addAttribute("page", $this->pagination_page);

        $_SESSION[self::PAGINATION_PAGE] = $this->pagination_page;

        return $voters;
    }
}

?>