小贝子编程

FullCalendar定期事件数组



我正在为fullcalendar开发一个重复事件后端，遇到了一个奇怪的问题。

我的事件是在一个名为events.php的页面上计算的。日历显示在index.php上，并从events.php调用事件。events.php上的函数输出重复事件的正确字符串，但index.php上的日历只显示每次重复中的第一个事件。但是，如果我复制数组生成的字符串并将其直接粘贴到events.php页面中，并注释掉render_fccalendar_events（）；函数，在生成字符串的events.php的末尾，日历将正确显示所有重复发生的事件。从我所看到的函数的输出和我粘贴到页面中的内容来看，在index.php上为日历提供的内容完全相同。显然，两者之间存在一些差异，因为这并没有使它们变得相同。你知道这里到底发生了什么吗？

这是events.php代码：

<?php require_once('../../Connections/local_i.php');
require_once('../../webassist/mysqli/rsobj.php');
global $wpdb;
$wpdb = new WA_MySQLi_RS("wpdb",$local_i,0);
$wpdb->setQuery("SELECT wpdb.id, wpdb.location, wpdb.name, wpdb.description, wpdb.recurrence, wpdb.start_date, wpdb.end_date, wpdb.repeat, wpdb.repeat_desk, wpdb.occurrence, wpdb.occurrence_desk FROM wpdb");
$wpdb->execute();
ini_set('display_errors', '0');
function render_fccalendar_events() {
        $_POST['start'] = (isset($_POST['start']) ? $_POST['start'] : strtotime('2014-09-01'));
        $_POST['end'] = (isset($_POST['end']) ? $_POST['end'] : strtotime('2014-09-30'));
        $start = date('Y-m-d',$_POST['start']);
        $end = date('Y-m-d', $_POST['end']);
        $readonly = (isset($_POST['readonly'])) ? true : false;    
        $events = fcdb_query_events($start, $end);       
        render_json(process_events($events, $start, $end, $readonly));
}
function process_events($events, $start, $end, $readonly) {
    if ($events) {
        $output = array();
        foreach ($events as $event) {
            $event->view_start = $start;
            $event->view_end = $end;
            $event = process_event($event, $readonly, true);
            if (is_array($event)) {
                foreach ($event as $repeat) {
                    array_push($output, $repeat);
                }
            } else {
                array_push($output, $event);
            }
        }
        return $output;
    }
}
function process_event($input, $readonly = false, $queue = false) {
    $output = array();
    if ($repeats = generate_repeating_event($input)) {
        foreach ($repeats as $repeat) {
            array_push($output, generate_event($repeat));
        }
    } else {
        array_push($output, generate_event($input));
    }
    if ($queue) {
        return $output;
    }
    render_json($output);
}

function generate_event($input) {
    $output = array(
        'id' => $input->id,
        'title' => $input->name,
        'start' => $input->start_date,
        'end' => $input->end_date,
        'allDay' => ($input->allDay) ? true : false,
        //'className' => "cat{$repeats}",
        'editable' => true,
        'repeat_i' => $input->repeat_int,
        'repeat_f' => $input->repeat_freq,
        'repeat_e' => $input->repeat_end
    );
    return $output;
}

function generate_repeating_event($event) {
    $repeat_desk = json_decode($event->repeat_desk);
    if ($event->repeat == "daily") {
        $event->repeat_int =0;
        $event->repeat_freq = $repeat_desk->every_day;
    }
    if ($event->repeat == "monthly") {
        $event->repeat_int =2;        
        $event->repeat_freq = $repeat_desk->every_month;
    }
    if ($event->repeat == "weekly") {
        $event->repeat_int =1;                
       $event->repeat_freq = $repeat_desk->every_week;
    }
    if ($event->repeat == "year") {
        $event->repeat_int =3;                        
        $event->repeat_freq = $repeat_desk->every_year;
    }
    if ($event->occurrence == "after-no-of-occurrences") {
        if($event->repeat_int == 0){
            $ext = "days";
        }
        if($event->repeat_int == 1){
            $ext = "weeks";
        }
        if($event->repeat_int == 2){
            $ext = "months";
        }
        if($event->repeat_int == 3){
            $ext = "years";
        }
       $event->repeat_end =  date('Y-m-d',strtotime("+" . $event->repeat_int . " ".$ext));
    } else if ($event->occurrence == "no-end-date") {
        $event->repeat_end = "2023-04-13";
    } else if ($event->occurrence == "end-by-end-date") {
        $event->repeat_end = $event->end_date;
    }

    if ($event->repeat_freq) {
        $event_start = strtotime($event->start_date);
        $event_end = strtotime($event->end_date);
        $repeat_end = strtotime($event->repeat_end) + 86400;
        $view_start = strtotime($event->view_start);
        $view_end = strtotime($event->view_end);
        $repeats = array();
        while ($event_start < $repeat_end) {
            if ($event_start >= $view_start && $event_start <= $view_end) {
                $event = clone $event; // clone event details and override dates
                $event->start_date = date('Y-m-d', $event_start);
                $event->end_date = date('Y-m-d', $event_end);
                array_push($repeats, $event);
            }
            $event_start = get_next_date($event_start, $event->repeat_freq, $event->repeat_int);
            $event_end = get_next_date($event_end, $event->repeat_freq, $event->repeat_int);
        }
        return $repeats;
    }
    return false;
 }
function get_next_date($date, $freq, $int) {
    if ($int == 0)
        return strtotime("+" . $freq . " days", $date);
    if ($int == 1)
        return strtotime("+" . $freq . " weeks", $date);
    if ($int == 2)
        return get_next_month($date, $freq);
    if ($int == 3)
        return get_next_year($date, $freq);
}
function get_next_month($date, $n = 1) {
    $newDate = strtotime("+{$n} months", $date);
    // adjustment for events that repeat on the 29th, 30th and 31st of a month
    if (date('j', $date) !== (date('j', $newDate))) {
        $newDate = strtotime("+" . $n + 1 . " months", $date);
    }
    return $newDate;
}
function get_next_year($date, $n = 1) {
    $newDate = strtotime("+{$n} years", $date);
    // adjustment for events that repeat on february 29th
    if (date('j', $date) !== (date('j', $newDate))) {
        $newDate = strtotime("+" . $n + 3 . " years", $date);
    }
    return $newDate;
}
function render_json($output) {
    header("Content-Type: application/json");
    echo json_encode(cleanse_output($output));
    exit;
}

function cleanse_output($output) {
    if (is_array($output)) {
        array_walk_recursive($output, create_function('&$val', '$val = trim(stripslashes($val));'));
    } else {
        $output = stripslashes($output);
    }
    return $output;
}
function fcdb_query_events($start, $end) {
    global $wpdb;
    $result = array();
//    $limit = ($limit) ? " LIMIT {$limit}" : "";
while(!$wpdb->atEnd()) {
    $item = new stdClass;
        $item->id = $wpdb->getColumnVal('id');
        $item->location = $wpdb->getColumnVal('location');
        $item->name = $wpdb->getColumnVal('name');
        $item->description = $wpdb->getColumnVal('description');
        $item->recurrence = $wpdb->getColumnVal('recurrence');
        $item->start_date = $wpdb->getColumnVal('start_date');
        $item->end_date = $wpdb->getColumnVal('end_date');
        $item->repeat = $wpdb->getColumnVal('repeat');
        $item->repeat_desk = $wpdb->getColumnVal('repeat_desk');
        $item->occurrence = $wpdb->getColumnVal('occurrence');
        $item->occurrence_desk = $wpdb->getColumnVal('occurrence_desk');
        $item->allDay = false;
        $result[] = $item;
           $wpdb->moveNext();
}
$wpdb->moveFirst(); //return RS to first record
    return return_result($result);
}
function return_result($result) {
    if ($result === false) {
        global $wpdb;
        $this->log($wpdb->print_error());
        return false;
    }
    return $result;
}
render_fccalendar_events();?>

这是events.php页面的输出

[{"id":"1","title":"test event","start":"2014-09-01","end":"2014-09-01","allDay":"","editable":"1","repeat_i":"1","repeat_f":"3","repeat_e":"2023-04-13"},{"id":"1","title":"test event","start":"2014-09-22","end":"2014-09-22","allDay":"","editable":"1","repeat_i":"1","repeat_f":"3","repeat_e":"2023-04-13"},{"id":"2","title":"test 2","start":"2014-09-04","end":"2014-09-04","allDay":"","editable":"1","repeat_i":"0","repeat_f":"2","repeat_e":"2023-04-13"},{"id":"2","title":"test 2","start":"2014-09-06","end":"2014-09-06","allDay":"","editable":"1","repeat_i":"0","repeat_f":"2","repeat_e":"2023-04-13"},{"id":"2","title":"test 2","start":"2014-09-08","end":"2014-09-08","allDay":"","editable":"1","repeat_i":"0","repeat_f":"2","repeat_e":"2023-04-13"},{"id":"2","title":"test 2","start":"2014-09-10","end":"2014-09-10","allDay":"","editable":"1","repeat_i":"0","repeat_f":"2","repeat_e":"2023-04-13"},{"id":"2","title":"test 2","start":"2014-09-12","end":"2014-09-12","allDay":"","editable":"1","repeat_i":"0","repeat_f":"2","repeat_e":"2023-04-13"},{"id":"2","title":"test 2","start":"2014-09-14","end":"2014-09-14","allDay":"","editable":"1","repeat_i":"0","repeat_f":"2","repeat_e":"2023-04-13"},{"id":"2","title":"test 2","start":"2014-09-16","end":"2014-09-16","allDay":"","editable":"1","repeat_i":"0","repeat_f":"2","repeat_e":"2023-04-13"},{"id":"2","title":"test 2","start":"2014-09-18","end":"2014-09-18","allDay":"","editable":"1","repeat_i":"0","repeat_f":"2","repeat_e":"2023-04-13"},{"id":"2","title":"test 2","start":"2014-09-20","end":"2014-09-20","allDay":"","editable":"1","repeat_i":"0","repeat_f":"2","repeat_e":"2023-04-13"},{"id":"2","title":"test 2","start":"2014-09-22","end":"2014-09-22","allDay":"","editable":"1","repeat_i":"0","repeat_f":"2","repeat_e":"2023-04-13"},{"id":"2","title":"test 2","start":"2014-09-24","end":"2014-09-24","allDay":"","editable":"1","repeat_i":"0","repeat_f":"2","repeat_e":"2023-04-13"},{"id":"2","title":"test 2","start":"2014-09-26","end":"2014-09-26","allDay":"","editable":"1","repeat_i":"0","repeat_f":"2","repeat_e":"2023-04-13"},{"id":"2","title":"test 2","start":"2014-09-28","end":"2014-09-28","allDay":"","editable":"1","repeat_i":"0","repeat_f":"2","repeat_e":"2023-04-13"},{"id":"3","title":"test 2","start":"2014-10-04 13:00:00","end":"2014-10-04 14:00:00","allDay":"","editable":"1","repeat_i":"0","repeat_f":"2","repeat_e":"2023-04-13"}]

这是调用events.php输出的index.php代码：

<script type="text/javascript">
   $(document).ready(function() {
        $('#calendar').fullCalendar({
            header: {
                left: 'prev,next today',
                center: 'title',
                right: 'month,agendaWeek,agendaDay'
            },
            defaultDate: '<?php echo date('Y-m-d'); ?>',
            editable: true,
            events:  {
                url: 'events.php',
                type: 'POST'
            },
             error: function() {
            alert('there was an error while fetching events!');
        }
        });
    });
  </script>

这似乎奏效了。

<?php require_once('../../Connections/local_i.php');
require_once('../../webassist/mysqli/rsobj.php');
global $wpdb;
$wpdb = new WA_MySQLi_RS("wpdb",$local_i,0);
$wpdb->setQuery("SELECT wpdb.id, wpdb.location, wpdb.name, wpdb.description, wpdb.recurrence, wpdb.start_date, wpdb.end_date, wpdb.repeat, wpdb.repeat_desk, wpdb.occurrence, wpdb.occurrence_desk, wpdb.repeat_key FROM wpdb");
$wpdb->execute();
ini_set('display_errors', '0');
function render_fccalendar_events() {
        //$_POST['start'] = (isset($_POST['start']) ? strtotime($_POST['start']) : strtotime('2014-09-01'));
//        $_POST['end'] = (isset($_POST['end']) ? strtotime($_POST['end']) : strtotime('2014-09-30'));
        $_POST['start'] = strtotime($_POST['start']);
        $_POST['end'] = strtotime($_POST['end']);
        $start = date('Y-m-d',$_POST['start']);
        $end = date('Y-m-d', $_POST['end']);
        $readonly = (isset($_POST['readonly'])) ? true : false;    
        $events = fcdb_query_events($start, $end);       
        render_json(process_events($events, $start, $end, $readonly));
}
function process_events($events, $start, $end, $readonly) {
    if ($events) {
        $output = array();
        foreach ($events as $event) {
            $event->view_start = $start;
            $event->view_end = $end;
            $event = process_event($event, $readonly, true);
            if (is_array($event)) {
                foreach ($event as $repeat) {
                    array_push($output, $repeat);
                }
            } else {
                array_push($output, $event);
            }
        }
        return $output;
    }
}
function process_event($input, $readonly = false, $queue = false) {
    $output = array();
    if ($repeats = generate_repeating_event($input)) {
        foreach ($repeats as $repeat) {
            array_push($output, generate_event($repeat));
        }
    } else {
        array_push($output, generate_event($input));
    }
    if ($queue) {
        return $output;
    }
    render_json($output);
}

function generate_event($input) {
    $output = array(
        'id' => $input->id,
        'title' => $input->name,
        'start' => $input->start_date,
        'end' => $input->end_date,
        'allDay' => ($input->allDay) ? true : false,
        //'className' => "cat{$repeats}",
        'editable' => true,
        'repeat_i' => $input->repeat_int,
        'repeat_f' => $input->repeat_freq,
        'repeat_e' => $input->repeat_end
    );
    return $output;
}

function generate_repeating_event($event) {
    $repeat_desk = json_decode($event->repeat_desk);
    if ($event->repeat == "daily") {
        $event->repeat_int =0;
        $event->repeat_freq = $repeat_desk->every_day;
    }
    if ($event->repeat == "monthly") {
        $event->repeat_int =2;        
        $event->repeat_freq = $repeat_desk->every_month;
    }
    if ($event->repeat == "weekly") {
        $event->repeat_int =1;                
       $event->repeat_freq = $repeat_desk->every_week;
    }
    if ($event->repeat == "year") {
        $event->repeat_int =3;                        
        $event->repeat_freq = $repeat_desk->every_year;
    }
    if ($event->occurrence == "after-no-of-occurrences") {
        if($event->repeat_int == 0){
            $ext = "days";
        }
        if($event->repeat_int == 1){
            $ext = "weeks";
        }
        if($event->repeat_int == 2){
            $ext = "months";
        }
        if($event->repeat_int == 3){
            $ext = "years";
        }
       $event->repeat_end =  date('Y-m-d',strtotime("+" . $event->repeat_int . " ".$ext));
    } else if ($event->occurrence == "no-end-date") {
        $event->repeat_end = "2023-04-13";
    } else if ($event->occurrence == "end-by-end-date") {
        $event->repeat_end = $event->end_date;
    }

    if ($event->repeat_freq) {
        // explode skipped events string (from database) into array $list_of_skipped_events
        $event_start = strtotime($event->start_date);
        $event_end = strtotime($event->end_date);
        $repeat_end = strtotime($event->repeat_end) + 86400;
        $view_start = strtotime($event->view_start);
        $view_end = strtotime($event->view_end);
        $repeats = array();
        $counter = 1;
        while ($event_start < $repeat_end) {
            if ($event_start >= $view_start && $event_start <= $view_end) {
                $event = clone $event; // clone event details and override dates
                $event->start_date = date('Y-m-d', $event_start);
                $event->end_date = date('Y-m-d', $event_end);
                //if counter is in list of events to skip, don't do the next line
                //if(! in_array($counter, $list_of_skipped_events))
                array_push($repeats, $event);
            }
            $event_start = get_next_date($event_start, $event->repeat_freq, $event->repeat_int);
            $event_end = get_next_date($event_end, $event->repeat_freq, $event->repeat_int);
            $counter++;
        }
        return $repeats;
    }
    return false;
 }
function get_next_date($date, $freq, $int) {
    if ($int == 0)
        return strtotime("+" . $freq . " days", $date);
    if ($int == 1)
        return strtotime("+" . $freq . " weeks", $date);
    if ($int == 2)
        return get_next_month($date, $freq);
    if ($int == 3)
        return get_next_year($date, $freq);
}
function get_next_month($date, $n = 1) {
    $newDate = strtotime("+{$n} months", $date);
    // adjustment for events that repeat on the 29th, 30th and 31st of a month
    if (date('j', $date) !== (date('j', $newDate))) {
        $newDate = strtotime("+" . $n + 1 . " months", $date);
    }
    return $newDate;
}
function get_next_year($date, $n = 1) {
    $newDate = strtotime("+{$n} years", $date);
    // adjustment for events that repeat on february 29th
    if (date('j', $date) !== (date('j', $newDate))) {
        $newDate = strtotime("+" . $n + 3 . " years", $date);
    }
    return $newDate;
}
function render_json($output) {
    header("Content-Type: application/json");
    echo json_encode(cleanse_output($output));
    exit;
}

function cleanse_output($output) {
    if (is_array($output)) {
        array_walk_recursive($output, create_function('&$val', '$val = trim(stripslashes($val));'));
    } else {
        $output = stripslashes($output);
    }
    return $output;
}
function fcdb_query_events($start, $end) {
    global $wpdb;
    $result = array();
//    $limit = ($limit) ? " LIMIT {$limit}" : "";
while(!$wpdb->atEnd()) {
    $item = new stdClass;
        $item->id = $wpdb->getColumnVal('id');
        $item->location = $wpdb->getColumnVal('location');
        $item->name = $wpdb->getColumnVal('name');
        $item->description = $wpdb->getColumnVal('description');
        $item->recurrence = $wpdb->getColumnVal('recurrence');
        $item->start_date = $wpdb->getColumnVal('start_date');
        $item->end_date = $wpdb->getColumnVal('end_date');
        $item->repeat = $wpdb->getColumnVal('repeat');
        $item->repeat_desk = $wpdb->getColumnVal('repeat_desk');
        $item->occurrence = $wpdb->getColumnVal('occurrence');
        $item->occurrence_desk = $wpdb->getColumnVal('occurrence_desk');
        $item->allDay = false;
        $result[] = $item;
           $wpdb->moveNext();
}
$wpdb->moveFirst(); //return RS to first record
    return return_result($result);
}
function return_result($result) {
    if ($result === false) {
        global $wpdb;
        $this->log($wpdb->print_error());
        return false;
    }
    return $result;
}
render_fccalendar_events();?>

和

<script type="text/javascript">
   $(document).ready(function() {
        $('#calendar').fullCalendar({
            header: {
                left: 'prev,next today',
                center: 'title',
                right: 'month,agendaWeek,agendaDay'
            },
            defaultDate: '<?php echo date('Y-m-d'); ?>',
            editable: true,
            events:  {
                url: 'events.php',
                type: 'POST'
            },
             error: function() {
            alert('there was an error while fetching events!');
        }
        });
    });
  </script>

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