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<?php
require_once(__DIR__ . '/../checkuser.php');
function generate() {
global $dbh;
$message = $_GET['message'] ?: null;
$search = $_GET['search'] ?: array();
if (isPost()) {
// generate invoice
$root_ids = $_POST['student']['selected'];
$generate = $_POST['generate'];
if (!empty($root_ids) && is_array($root_ids) && !empty($generate['start_date']) && !empty($generate['end_date'])) {
$saved_invoice_count = 0;
$saved_invoice_code_from = '';
$saved_invoice_code_to = '';
Db\Util::transaction($dbh, function() use ($dbh, &$root_ids, &$generate, &$saved_invoice_count, &$saved_invoice_code_from, &$saved_invoice_code_to) {
$invoice_columns = Db\Util::columns($dbh, 'mis_invoice');
$invoice_line_columns = Db\Util::columns($dbh, 'mis_invoice_line');
$lesson_columns = Db\Util::columns($dbh, 'mis_event_lesson');
$event_columns = Db\Util::columns($dbh, 'mis_event');
$sql = "SELECT * FROM mis_invoice FOR UPDATE";
$sth = Db\Util::execute($dbh, $sql);
// fetch non generate student invoice information
$parameters = array();
$question_marks = array();
foreach ($root_ids as $root_id) {
$parameters[] = $root_id;
$question_marks[] = '?';
}
$sql = "SELECT lesson_student.*";
foreach ($lesson_columns as $column) {
$column_name = $column['column_name'];
$sql .= ", lesson.`$column_name` AS lesson_$column_name";
}
foreach ($event_columns as $column) {
$column_name = $column['column_name'];
$sql .= ", evt.`$column_name` AS event_$column_name";
}
$sql .= ",
student.root_id AS student_root_id, grade.title AS student_grade, latest_student.id AS latest_student_id
FROM mis_student student
INNER JOIN mis_student latest_student ON latest_student.root_id = student.root_id AND latest_student.is_latest = 1
LEFT JOIN mis_student_grade grade ON grade.id = latest_student.student_grade_id
INNER JOIN mis_lesson_student lesson_student ON lesson_student.student_id = student.id AND lesson_student.deleted = 0
INNER JOIN mis_event_lesson lesson ON lesson.id = lesson_student.lesson_id AND lesson.deleted = 0
INNER JOIN mis_event evt ON evt.id = lesson.event_id AND evt.is_waiting_list = 0 AND evt.deleted = 0
LEFT JOIN mis_invoice_line invoice_line ON invoice_line.lesson_student_id = lesson_student.id AND invoice_line.deleted = 0
LEFT JOIN mis_invoice invoice ON invoice.id = invoice_line.invoice_id AND invoice.deleted = 0
WHERE student.root_id IN (".implode(', ', $question_marks).")
AND CASE WHEN COALESCE(LENGTH(?), 0) = 0 THEN 1 = 1 ELSE lesson.`date` >= ? END
AND CASE WHEN COALESCE(LENGTH(?), 0) = 0 THEN 1 = 1 ELSE lesson.`date` <= ? END
AND (invoice_line.lesson_student_id IS NULL OR invoice.id IS NULL)
";
$parameters = array_merge($parameters, array(
$generate['start_date'], $generate['start_date'],
$generate['end_date'], $generate['end_date'],
));
$sth = Db\Util::execute($dbh, $sql, $parameters);
$lesson_students = $sth->fetchAll();
// get lesson student count
$event_ids = __::chain($lesson_students)
->filter(function($record) { return $record['event_programme_fee_type'] == 1; }) // programme fee type: hourly
->pluck('event_id') // get all event id
->uniq() // unique / distinct
->value(); // to array
if (empty($event_ids)) {
$lesson_student_counts = array();
} else {
$parameters = array();
$question_marks = array();
foreach ($event_ids as $event_id) {
$parameters[] = $event_id;
$question_marks[] = '?';
}
$sql = "
SELECT lesson.event_id, lesson.id AS lesson_id,
(
SELECT COUNT(*)
FROM mis_lesson_student lesson_student
WHERE lesson_student.lesson_id = lesson.id AND lesson_student.deleted = 0
) AS student_count
FROM mis_event evt
INNER JOIN mis_event_lesson lesson ON lesson.event_id = evt.id AND lesson.deleted = 0
WHERE evt.id IN (".implode(', ', $question_marks).") AND evt.is_waiting_list = 0 AND evt.deleted = 0";
$sth = Db\Util::execute($dbh, $sql, $parameters);
$lesson_student_counts = $sth->fetchAll();
}
// get subsidy information
$parameters = array();
$question_marks = array();
foreach ($root_ids as $root_id) {
$parameters[] = $root_id;
$question_marks[] = '?';
}
$sql = "
SELECT student.root_id AS student_root_id,
subsidy.`type` AS subsidy_type,
SUM(subsidy.percent) AS subsidy_percent
FROM mis_student student
INNER JOIN mis_student_subsidy student_subsidy ON student_subsidy.student_id = student.id
INNER JOIN mis_subsidy subsidy ON subsidy.id = student_subsidy.subsidy_id
WHERE student.root_id IN (".implode(', ', $question_marks).") AND student.is_latest = 1 AND student.deleted = 0
GROUP BY student.root_id, subsidy.`type`
";
$sth = Db\Util::execute($dbh, $sql, $parameters);
$student_subsidy_infos = $sth->fetchAll();
// calculate invoice fee
$invoice_lines = array();
foreach ($lesson_students as $lesson_student) {
$student_subsidy_info = __::find($student_subsidy_infos, function($info) use ($lesson_student) {
return $info['student_root_id'] == $lesson_student['student_root_id'];
});
$lesson_student_count = __::find($lesson_student_counts, function($info) use ($lesson_student) {
return $info['lesson_id'] == $lesson_student['lesson_id'];
});
$invoice_line = array(
'actived' => 1,
'deleted' => 0,
'lesson_student_id' => $lesson_student['id'],
'event_programme_fee_type' => $lesson_student['event_programme_fee_type'],
'subsidy_percent' => $student_subsidy_info ? $student_subsidy_info['subsidy_percent'] : 0,
'student_id' => $lesson_student['latest_student_id'],
'student_root_id' => $lesson_student['student_root_id'],
'student_subsidy_type' => $student_subsidy_info ? $student_subsidy_info['subsidy_type'] : null,
);
// hour
$start_date_time = new DateTime(sprintf('%s %02d:%02d:00', $lesson_student['lesson_date'], $lesson_student['lesson_start_time_hour'], $lesson_student['lesson_start_time_min']));
$end_date_time = new DateTime(sprintf('%s %02d:%02d:00', $lesson_student['lesson_date'], $lesson_student['lesson_end_time_hour'], $lesson_student['lesson_end_time_min']));
$interval = $start_date_time->diff($end_date_time);
$invoice_line['hour'] = $interval->h + ($interval->i / floatval(60));
switch ($invoice_line['event_programme_fee_type']) {
case 1: { // hourly
$student_grade = 'p';
if (!empty($lesson_student['student_grade'])) {
$student_grade = strtolower(substr($lesson_student['student_grade'], 0, 1));
}
if ($lesson_student_count['student_count'] > 1) {
// group
$invoice_line['original_fee'] = $student_grade == 'p' ? $lesson_student['event_primary_group_price'] : $lesson_student['event_secondary_group_price'];
} else {
// individual
$invoice_line['original_fee'] = $student_grade == 'p' ? $lesson_student['event_primary_individual_price'] : $lesson_student['event_secondary_individual_price'];
}
$invoice_line['amount'] = floatval($invoice_line['original_fee']) * $invoice_line['hour'] * (1 - ($invoice_line['subsidy_percent'] / floatval(100)));
break;
}
case 2: { // package
$invoice_line['original_fee'] = $lesson_student['event_package_fee'];
$invoice_line['amount'] = floatval($invoice_line['original_fee']) * (1 - ($invoice_line['subsidy_percent'] / floatval(100)));
break;
}
}
$invoice_lines[] = $invoice_line;
}
// create and save invoices
$invoice_line_groups = __::groupBy($invoice_lines, 'student_root_id');
foreach ($invoice_line_groups as $student_root_id => $invoice_lines) {
$first_invoice_line = __::first($invoice_lines);
$invoice = array(
'actived' => 1,
'deleted' => 0,
'student_id' => $first_invoice_line['student_id'],
'subsidy_type' => $first_invoice_line['student_subsidy_type'],
);
$invoice['id'] = Db\Util::create($dbh, 'mis_invoice', $invoice, $invoice_columns);
$invoice['code'] = sprintf('INV%06d', $invoice['id']);
Db\Util::update($dbh, 'mis_invoice', $invoice, $invoice_columns);
$saved_invoice_count++;
$saved_invoice_code_to = $invoice['code'];
if (empty($saved_invoice_code_from)) {
$saved_invoice_code_from = $invoice['code'];
}
// fill invoice id into line and save
foreach ($invoice_lines as $invoice_line) {
$invoice_line['invoice_id'] = $invoice['id'];
Db\Util::create($dbh, 'mis_invoice_line', $invoice_line, $invoice_line_columns);
}
}
});
$data = array();
switch ($saved_invoice_count) {
case 0: {
$data['message'] = 'No invoices saved';
break;
}
case 1: {
$data['message'] = sprintf('Saved, invoice no: %s', $saved_invoice_code_to);
break;
}
default: {
$data['message'] = sprintf('Saved %d invoices, start from %s to %s.', $saved_invoice_count, $saved_invoice_code_from, $saved_invoice_code_to);
break;
}
}
redirectAndExit(Util::link(__DIR__ . '/' . basename(__FILE__)) . '?' . http_build_query($data));
}
}
$students = null;
if (!empty($search)) {
$sql = "
SELECT DISTINCT latest_student.*, grade.title AS student_grade
FROM mis_student student
INNER JOIN mis_student latest_student ON latest_student.root_id = student.root_id AND latest_student.is_latest = 1
LEFT JOIN mis_student_grade grade ON grade.id = latest_student.student_grade_id
INNER JOIN mis_lesson_student lesson_student ON lesson_student.student_id = student.id AND lesson_student.deleted = 0
INNER JOIN mis_event_lesson lesson ON lesson.id = lesson_student.lesson_id AND lesson.deleted = 0
INNER JOIN mis_event evt ON evt.id = lesson.event_id AND evt.is_waiting_list = 0 AND evt.deleted = 0
LEFT JOIN mis_invoice_line invoice_line ON invoice_line.lesson_student_id = lesson_student.id AND invoice_line.deleted = 0
LEFT JOIN mis_invoice invoice ON invoice.id = invoice_line.invoice_id AND invoice.deleted = 0
WHERE CASE WHEN COALESCE(LENGTH(?), 0) = 0 THEN 1 = 1 ELSE lesson.`date` >= ? END
AND CASE WHEN COALESCE(LENGTH(?), 0) = 0 THEN 1 = 1 ELSE lesson.`date` <= ? END
AND (invoice_line.lesson_student_id IS NULL OR invoice.id IS NULL)
ORDER BY latest_student.last_name, latest_student.first_name, latest_student.registration_number, latest_student.root_id
";
$parameters = array(
$search['start_date'], $search['start_date'],
$search['end_date'], $search['end_date'],
);
$sth = Db\Util::execute($dbh, $sql, $parameters);
$students = $sth->fetchAll();
}
return array(
'students' => $students,
'message' => $message,
'search' => $search,
);
}
extract(generate());
?><!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<?php require(__DIR__ . '/../inc/_head_meta.php'); ?>
<?php require(__DIR__ . '/../inc/_head_css.php'); ?>
<?php require(__DIR__ . '/../inc/_head_script.php'); ?>
</head>
<body>
<?php require( __DIR__ . '/../inc/_navbar.php'); ?>
<div class="text-right">
<ul class="breadcrumb">
<li><a href="#">Master</a> <span class="divider">></span></li>
<li><a href="#">Student</a> <span class="divider">></span></li>
<li class="active">Generate Invoice</li>
</ul>
</div>
<div class="container-fluid pathways-container">
<?php if (isset($message) && !empty($message)): ?>
<div class="alert alert-info">
<button type="button" class="close" data-dismiss="alert">×</button>
<h5 class="alert-heading">Note:</h5>
<p><?=$message?></p>
</div>
<?php endif; ?>
<h3>Generate Invoice</h3>
<?php if (empty($search)): ?>
<div class="pathways-search">
<form id="search_form" class="form-inline" action="" method="get">
<div class="pathways-inline-block">
<?php $attribute = 'start_date'; $label = 'Date'; ?>
<label class="" for="<?=$attribute?>"><?=$label?></label>
<div class="input-append date-picker">
<input type="text" id="<?=$attribute?>" name="search[<?=$attribute?>]" class="required dateISO input-small" style="width:90px" value="<?=h(Util::value_to_date_string($search[$attribute]))?>" data-format="yyyy-MM-dd" placeholder="<?=h($label)?>" maxlength="200" />
<span class="add-on"><i data-time-icon="icon-time" data-date-icon="icon-calendar"></i></span>
</div>
<?php $attribute = 'end_date'; $label = 'To'; ?>
<label class="" for="<?=$attribute?>"><?=$label?></label>
<div class="input-append date-picker">
<input type="text" id="<?=$attribute?>" name="search[<?=$attribute?>]" class="required dateISO input-small" style="width:90px" value="<?=h(Util::value_to_date_string($search[$attribute]))?>" data-format="yyyy-MM-dd" placeholder="<?=h($label)?>" maxlength="200" />
<span class="add-on"><i data-time-icon="icon-time" data-date-icon="icon-calendar"></i></span>
</div>
</div>
<div class="pathways-inline-block">
<button type="submit" class="btn" style="margin-left:10px">GO</button>
</div>
</form>
</div>
<script type="text/javascript">
$(function() {
$('.date-picker').datetimepicker({ pickTime: false });
$('#search_form').validate();
});
</script>
<?php else: ?>
<p>From <?=h($search['start_date'])?> to <?=h($search['end_date'])?></p>
<?php if (empty($students)): ?>
<p>There are no records.</p>
<div>
<a href="<?=basename(__FILE__)?>" class="btn">Back</a>
</div>
<?php else: ?>
<div class="row-fluid" style="margin-bottom:10px">
<div class="btn-group">
<button id="select_all_btn" class="btn btn-small">Select All</button>
</div>
</div>
<script type="text/javascript">
$(function() {
$('#select_all_btn').click(function() {
var $selectAllCheckbox = $('.select-all-checkbox');
$selectAllCheckbox.prop('checked', !$selectAllCheckbox.prop('checked'));
});
});
</script>
<form id="form" action="" method="post">
<?php $attribute = 'start_date'; ?>
<input type="hidden" name="generate[<?=$attribute?>]" value="<?=h($search[$attribute])?>" />
<?php $attribute = 'end_date'; ?>
<input type="hidden" name="generate[<?=$attribute?>]" value="<?=h($search[$attribute])?>" />
<table class="table table-striped table-bordered table-hover table-condensed">
<thead>
<tr>
<th style="min-width:20px; width:20px"></th>
<th>Name</th>
</tr>
</thead>
<tbody>
<?php foreach ($students as $student): ?>
<tr>
<td><input type="checkbox" name="student[selected][]" class="select-all-checkbox" value="<?=h($student['root_id'])?>" /></td>
<td><?=h($student['last_name'] . ' ' . $student['first_name'])?> (<?=h($student['registration_number'])?>) <?=h($student['student_grade'])?></td>
</tr>
<?php endforeach; ?>
</tbody>
</table>
<button type="submit" class="btn btn-danger">Generate</button>
</form>
<script type="text/javascript">
$(function() {
$('#form').validate({
submitHandler: function(form) {
var isValid = true;
if ($('input[name="student[selected][]"]:checked').length == 0) {
isValid = false;
bootbox.alert('Please select student first.');
}
if (isValid) {
form.submit();
}
}
});
});
</script>
<?php endif; ?>
<?php endif; ?>
<?php require( __DIR__ . '/../inc/_footer.php'); ?>
</div> <!-- /container -->
</body>
</html>
|