itflow/calendar_events.php

<?php

require_once("inc_all.php");

if (isset($_GET['calendar_id'])) {
    $calendar_selected_id = intval($_GET['calendar_id']);
}

?>
<link href='plugins/fullcalendar/main.min.css' rel='stylesheet' />

<div id='calendar'></div>

<?php

require_once("calendar_event_add_modal.php");
require_once("calendar_add_modal.php");
require_once("category_quick_add_modal.php");

//loop through IDs and create a modal for each
$sql = mysqli_query($mysqli, "SELECT * FROM events LEFT JOIN calendars ON event_calendar_id = calendar_id WHERE calendars.company_id = $session_company_id");
while ($row = mysqli_fetch_array($sql)) {
    $event_id = $row['event_id'];
    $event_title = htmlentities($row['event_title']);
    $event_description = htmlentities($row['event_description']);
    $event_start = htmlentities($row['event_start']);
    $event_end = htmlentities($row['event_end']);
    $event_repeat = htmlentities($row['event_repeat']);
    $calendar_id = $row['calendar_id'];
    $calendar_name = htmlentities($row['calendar_name']);
    $calendar_color = htmlentities($row['calendar_color']);
    $client_id = $row['event_client_id'];

    require("calendar_event_edit_modal.php");

}

?>

<?php require_once("footer.php"); ?>

<script src='plugins/fullcalendar/main.min.js'></script>

<script>

    document.addEventListener('DOMContentLoaded', function() {
        var calendarEl = document.getElementById('calendar');

        var calendar = new FullCalendar.Calendar(calendarEl, {
            themeSystem: 'bootstrap',
            defaultView: 'dayGridMonth',
            customButtons: {
                addEvent: {
                    bootstrapFontAwesome: 'fa fa-plus',
                    click: function() {
                        $("#addCalendarEventModal").modal();
                    }
                },
                addCalendar: {
                    bootstrapFontAwesome: 'fa fa-calendar-plus',
                    click: function() {
                        $("#addCalendarModal").modal();
                    }
                }
            },
            headerToolbar: {
                left: 'prev,next today',
                center: 'title',
                right: 'dayGridMonth,timeGridWeek,timeGridDay,listMonth addEvent addCalendar'
            },
            events: [
                <?php
                $sql = mysqli_query($mysqli, "SELECT * FROM events LEFT JOIN calendars ON event_calendar_id = calendar_id WHERE calendars.company_id = $session_company_id");
                while ($row = mysqli_fetch_array($sql)) {
                    $event_id = json_encode($row['event_id']);
                    $event_title = json_encode($row['event_title']);
                    $event_start = json_encode($row['event_start']);
                    $event_end = json_encode($row['event_end']);
                    $calendar_id = json_encode($row['calendar_id']);
                    $calendar_name = json_encode($row['calendar_name']);
                    $calendar_color = json_encode($row['calendar_color']);

                    echo "{ id: $event_id, title: $event_title, start: $event_start, end: $event_end, color: $calendar_color },";
                }

                //Invoices Created
                $sql = mysqli_query($mysqli, "SELECT * FROM clients LEFT JOIN invoices ON client_id = invoice_client_id WHERE clients.company_id = $session_company_id");
                while ($row = mysqli_fetch_array($sql)) {
                    $event_id = json_encode($row['invoice_id']);
                    $event_title = json_encode($row['invoice_prefix'] . $row['invoice_number'] . " " . $row['invoice_scope']);
                    $event_start = json_encode($row['invoice_date']);

                    echo "{ id: $event_id, title: $event_title, start: $event_start, color: 'blue', url: 'invoice.php?invoice_id=$event_id' },";
                }

                //Quotes Created
                $sql = mysqli_query($mysqli, "SELECT * FROM clients LEFT JOIN quotes ON client_id = quote_client_id WHERE clients.company_id = $session_company_id");
                while ($row = mysqli_fetch_array($sql)) {
                    $event_id = json_encode($row['quote_id']);
                    $event_title = json_encode($row['quote_prefix'] . $row['quote_number'] . " " . $row['quote_scope']);
                    $event_start = json_encode($row['quote_date']);

                    echo "{ id: $event_id, title: $event_title, start: $event_start, color: 'purple', url: 'quote.php?quote_id=$event_id' },";
                }

                //Tickets Created
                $sql = mysqli_query($mysqli, "SELECT * FROM clients LEFT JOIN tickets ON client_id = ticket_client_id WHERE clients.company_id = $session_company_id");
                while ($row = mysqli_fetch_array($sql)) {
                    $event_id = json_encode($row['ticket_id']);
                    $event_title = json_encode($row['ticket_prefix'] . $row['ticket_number'] . " " . $row['ticket_subject']);
                    $event_start = json_encode($row['ticket_created_at']);

                    echo "{ id: $event_id, title: $event_title, start: $event_start, color: 'orange', url: 'ticket.php?ticket_id=$event_id' },";

                }

                //Vendors Added Created
                $sql = mysqli_query($mysqli, "SELECT * FROM clients LEFT JOIN vendors ON client_id = vendor_client_id WHERE vendor_template = 0 AND clients.company_id = $session_company_id");
                while ($row = mysqli_fetch_array($sql)) {
                    $event_id = json_encode($row['vendor_id']);
                    $event_title = json_encode($row['vendor_name']);
                    $event_start = json_encode($row['vendor_created_at']);

                    echo "{ id: $event_id, title: $event_title, start: $event_start, color: 'brown', url: 'client_vendors.php?client_id=$event_id' },";
                }

                //Clients Added
                $sql = mysqli_query($mysqli, "SELECT * FROM clients WHERE clients.company_id = $session_company_id");
                while ($row = mysqli_fetch_array($sql)) {
                    $event_id = json_encode($row['client_id']);
                    $event_title = json_encode($row['client_name']);
                    $event_start = json_encode($row['client_created_at']);

                    echo "{ id: $event_id, title: $event_title, start: $event_start, color: 'green', url: 'client.php?client_id=$event_id' },";
                }
                ?>


            ],
            eventClick: function(editEvent) {
                $('#editEventModal'+editEvent.event.id).modal();
            }
        });

        calendar.render();
    });

</script>

<!-- Automatically set new event end date to 1 hr after start date -->
<script>

    // Function - called when user leaves field (onblur)
    function updateIncrementEndTime() {

        // Get the start date
        let start = document.getElementById("event_add_start").value;

        // Create a date object
        let new_end = new Date(start);

        // Set the end date to 1 hr in the future
        new_end.setHours(new_end.getHours() + 1)

        // Get the date back as a string, with the milliseconds trimmed off
        new_end = new_end.toISOString().replace(/.\d+Z$/g, "");

        // Update the end date field
        document.getElementById("event_add_end").value = new_end;

    }

</script>