votervue/classes/Journal.php

<?php

// =============
// Journal Class
// =============

class Journal extends Base {

    // Variables.

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

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

    public function __construct() {

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

        date_default_timezone_set(self::TIMEZONE);

        $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;
    }

    // =================
    // Clear the Journal
    // =================

    public function clearJournal() {

        $SQL = "truncate journal";

        $this->executeSQL($SQL);

        $this->journalEntry("Journal was Cleared.");
    }

    // =======================
    // Return a Journal Object
    // =======================

    public function getJournal($limit = 500) {

        $SQL = "select journal.*,
                   date_format(journal.journal_timestamp, '%Y-%m-%d %h:%i %p') as journal_timestamp_verbose
              from journal
          order by journal.journal_timestamp desc
             limit {$limit}";

        return $this->getTable("journal", $SQL);
    }

    // ============================
    // Return a Journal Page Object
    // ============================

    public function getJournalPage() {

        // Find Criteria

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

        // Show Per Page

        $this->pagination_size = filter_input(INPUT_POST, "journals_per_page", FILTER_SANITIZE_NUMBER_INT) ?: $this->pagination_size;

        // Record Count

        $connection = $this->connect();

        $SQL = "select count(*) as count
              from view_journal
             where journal_timestamp       regexp :journal_timestamp
                or journal_origin          regexp :journal_origin
                or journal_ip              regexp :journal_ip
                or journal_entry           regexp :journal_entry";

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

        $statement->bindValue(":journal_timestamp", $find_words);
        $statement->bindValue(":journal_origin", $find_words);
        $statement->bindValue(":journal_ip", $find_words);
        $statement->bindValue(":journal_entry", $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

        $SQL = "select view_journal.*
              from view_journal
             where journal_timestamp       regexp :journal_timestamp
                or journal_origin          regexp :journal_origin
                or journal_ip              regexp :journal_ip
                or journal_entry           regexp :journal_entry
             limit {$this->pagination_size}
            offset {$offset}";

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

        $statement->bindValue(":journal_timestamp", $find_words);
        $statement->bindValue(":journal_origin", $find_words);
        $statement->bindValue(":journal_ip", $find_words);
        $statement->bindValue(":journal_entry", $find_words);

        $statement->execute();

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

        // Insert Pagination Attributes

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

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

        return $journal;
    }

    // ======================
    // Create a Journal Entry
    // ======================

    public function journalEntry($journal_entry = "") {

        if (empty($journal_entry)) {
            return;
        }

        $SQL = "insert into journal
      
                      ( journal_origin,
                        journal_ip,
                        journal_entry )

              VALUES ( :journal_origin,
                       :journal_ip,
                       :journal_entry )";

        $statement = $this->connect()->prepare($SQL);

        $statement->bindValue(":journal_origin", $this->current_user_name);
        $statement->bindValue(":journal_ip", $_SERVER["REMOTE_ADDR"] ?? "");
        $statement->bindValue(":journal_entry", $journal_entry);

        $statement->execute();
    }

    // ============
    // View Journal
    // ============

    public function viewJournal() {

        $journal = $this->getJournalPage();
        $popovers = (new Popovers())->getPopovers();

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

        $content = $this->applyXSL($XML, $this->getXSL("./system/viewJournal"));

        $this->displayContent($content);
    }
}

?>