vikbooking / admin / helpers / einvoicing / einvoicing.php

einvoicing.php in VikBooking Hotel Booking Engine & PMS 1.6.4, at admin/helpers/einvoicing/einvoicing.php

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1	<?php
2	/**
3	* @package VikBooking
4	* @subpackage com_vikbooking
5	* @author Alessio Gaggii - e4j - Extensionsforjoomla.com
6	* @copyright Copyright (C) 2018 e4j - Extensionsforjoomla.com. All rights reserved.
7	* @license GNU General Public License version 2 or later; see LICENSE
8	* @link https://vikwp.com
9	*/
10
11	defined('ABSPATH') or die('No script kiddies please!');
12
13	/**
14	* eInvoicing parent Class of all sub-classes
15	*/
16	abstract class VikBookingEInvoicing
17	{
18	protected $driverFile = '';
19	protected $driverName = '';
20	protected $driverId = null;
21	protected $driverFilters = array();
22	protected $driverButtons = array();
23	protected $driverScript = '';
24	protected $hasSettings = false;
25	protected $warning = [];
26	protected $error = [];
27	protected $info = [];
28	protected $dbo;
29	protected $session;
30
31	protected $cols = array();
32	protected $rows = array();
33	protected $footerRow = array();
34
35	/**
36	* @var mixed flag modifiable by external invokes (cron, analogic invoices)
37	*/
38	public $externalCall = null;
39
40	/**
41	* @var array data injectable by external callers
42	*/
43	public $externalData = array();
44
45	/**
46	* Class constructors should define some vars of the driver in use.
47	*/
48	public function __construct() {
49	$this->dbo = JFactory::getDbo();
50	$this->session = JFactory::getSession();
51
52	/**
53	* Turn on the flag that the eInvocing class is running
54	* so that other parts of the framework can avoid to
55	* invoke again this class and to generate double e-invoices.
56	*/
57	defined('VBO_EINVOICING_RUN') OR define('VBO_EINVOICING_RUN', 1);
58	}
59
60	/**
61	* Extending Classes should define this method
62	* to get the name of class file.
63	*/
64	abstract public function getFileName();
65
66	/**
67	* Extending Classes should define this method
68	* to get the name of the driver.
69	*/
70	abstract public function getName();
71
72	/**
73	* Extending Classes should define this method
74	* to get the filters of the driver.
75	*/
76	abstract public function getFilters();
77
78	/**
79	* Extending Classes should define this method
80	* to get the driver action buttons.
81	*/
82	abstract public function getButtons();
83
84	/**
85	* Extending Classes should define this method
86	* to generate the bookings data (cols and rows).
87	*/
88	abstract public function getBookingsData();
89
90	/**
91	* Extending Classes should define this method
92	* to prepare the settings of the driver before saving.
93	* Views should not call this method.
94	*/
95	abstract protected function prepareSavingSettings();
96
97	/**
98	* Extending Classes should define this method
99	* to generate the electronic invoices.
100	*/
101	abstract public function generateEInvoices();
102
103	/**
104	* Extending Classes should define this method
105	* to generate the electronic invoice for
106	* the given booking ID or booking array.
107	*/
108	abstract public function generateEInvoice($data);
109
110	/**
111	* Extending Classes should define this method
112	* to generate the electronic invoice from a custom
113	* invoice not related to any booking ID.
114	* Existing (analogic) invoice record and customer
115	* shall be passed as arguments.
116	*/
117	abstract public function prepareCustomInvoiceData($invoice, $customer);
118
119	/**
120	* Extending Classes should define this method
121	* to check if an electronic invoice exists for
122	* a given booking ID or Number. This is useful
123	* for external scripts to request later the
124	* obliteration of the invoice to create a new one.
125	* For example, during the update of a custom invoice.
126	*/
127	abstract public function eInvoiceExists($data);
128
129	/**
130	* Extending Classes should define this method
131	* to obliterate an existingelectronic invoice.
132	* This is useful for external scripts to request the
133	* obliteration of the invoice to create a new one.
134	* For example, during the update of a custom invoice.
135	*/
136	abstract public function obliterateEInvoice($data);
137
138	/**
139	* Loads the settings for the driver, which parameters
140	* must be saved as a JSON encoded string. Never cache
141	* the settings fetched as they may be updated by other methods.
142	*
143	* @return mixed array if settings exist, false otherwise
144	*/
145	protected function loadSettings()
146	{
147	$q = "SELECT * FROM `#__vikbooking_einvoicing_config` WHERE `driver`=".$this->dbo->quote($this->getFileName())." ORDER BY `id` DESC LIMIT 1;";
148	$this->dbo->setQuery($q);
149	$this->dbo->execute();
150	if (!$this->dbo->getNumRows()) {
151	// no settings defined for this driver
152	return false;
153	}
154	$settings = $this->dbo->loadAssoc();
155	$settings['params'] = !empty($settings['params']) ? json_decode($settings['params'], true) : array();
156	$settings['params'] = is_array($settings['params']) ? $settings['params'] : array();
157
158	// update driverId
159	$this->driverId = $settings['id'];
160
161	// return array of settings with decoded parameters
162	return $settings;
163	}
164
165	/**
166	* Saves the settings for the driver.
167	* The View may call this method to save the driver settings.
168	*
169	* @return boolean true if settings were stored, false otherwise
170	*/
171	public function saveSettings()
172	{
173	$data = $this->prepareSavingSettings();
174	if (!$data instanceof stdClass \|\| !count(get_object_vars($data))) {
175	return false;
176	}
177
178	$q = "SELECT * FROM `#__vikbooking_einvoicing_config` WHERE `driver`=".$this->dbo->quote($this->getFileName())." ORDER BY `id` DESC LIMIT 1;";
179	$this->dbo->setQuery($q);
180	$this->dbo->execute();
181	if (!$this->dbo->getNumRows()) {
182	// create new driver record as it's the first time we're saving the settings
183	if (!$this->dbo->insertObject('#__vikbooking_einvoicing_config', $data, 'id')) {
184	return false;
185	}
186	} else {
187	// update the driver record with the new settings
188	$current = $this->dbo->loadAssoc();
189	$data->id = $current['id'];
190	if (!$this->dbo->updateObject('#__vikbooking_einvoicing_config', $data, 'id')) {
191	return false;
192	}
193	}
194
195	$this->setInfo(JText::translate('VBODRIVERSETTSUPD'));
196
197	return true;
198	}
199
200	/**
201	* Returns whether the driver has settings to be defined.
202	*
203	* @return boolean
204	*/
205	public function hasSettings()
206	{
207	return $this->hasSettings;
208	}
209
210	/**
211	* Echoes the HTML required for the driver settings form.
212	* This method should be extended by the driver if settings are needed.
213	*
214	* @return void
215	*/
216	public function printSettings()
217	{
218	return;
219	}
220
221	/**
222	* Echoes the HTML required for the driver overlay form.
223	* This method should be extended by the driver if needed.
224	* For example, to show contents within a modal.
225	*
226	* @return void
227	*/
228	public function printOverlayContent()
229	{
230	return;
231	}
232
233	/**
234	* Returns the ID of the current driver by taking it from the settings.
235	* By calling loadSettings(), if some settings are defined, the ID is set in driverId.
236	*
237	* @return mixed the ID of the current driver if some settings were stored or null.
238	*
239	* @uses loadSettings
240	*/
241	protected function getDriverId()
242	{
243	if (is_null($this->driverId)) {
244	// this method will set a value for the property driverId if some settings were saved
245	$this->loadSettings();
246	}
247
248	return $this->driverId;
249	}
250
251	/**
252	* Stores an electronic invoice. If the booking ID is passed through the data
253	* the system will set to obliterated all e-invoices previously made for that booking.
254	* Custom (manual) invoices should be obliterated by the external caller script instead.
255	*
256	* @param object $data stdClass object with the data to store
257	*
258	* @return mixed the ID of the invoice stored, false otherwise
259	*/
260	protected function storeEInvoice($data)
261	{
262	if (!$data instanceof stdClass \|\| !count(get_object_vars($data))) {
263	return false;
264	}
265
266	if (isset($data->idorder) && (int)$data->idorder > 0) {
267	// obliterate any possible previous e-invoice for this booking
268	$q = "UPDATE `#__vikbooking_einvoicing_data` SET `obliterated`=1 WHERE `driverid`=".(int)$this->driverId." AND `idorder`=".(int)$data->idorder.";";
269	$this->dbo->setQuery($q);
270	$this->dbo->execute();
271	}
272
273	if ($this->dbo->insertObject('#__vikbooking_einvoicing_data', $data, 'id')) {
274	return $data->id;
275	}
276
277	return false;
278	}
279
280	/**
281	* Updates the information for an electronic invoice.
282	*
283	* @param object $data stdClass object with the data to store
284	*
285	* @return boolean
286	*/
287	protected function updateEInvoice($data)
288	{
289	if (!$data instanceof stdClass \|\| !count(get_object_vars($data))) {
290	return false;
291	}
292
293	if ($this->dbo->updateObject('#__vikbooking_einvoicing_data', $data, 'id')) {
294	return true;
295	}
296
297	return false;
298	}
299
300	/**
301	* Checks whether an analogic invoice in PDF was already issued
302	* for the given booking ID. This is to avoid double PDF invoices.
303	*
304	* @param int $idorder the ID of the booking
305	*
306	* @return boolean
307	*/
308	protected function hasAnalogicInvoice($idorder)
309	{
310	if (empty($idorder)) {
311	return false;
312	}
313
314	$q = "SELECT `id` FROM `#__vikbooking_invoices` WHERE `idorder`=".(int)$idorder.";";
315	$this->dbo->setQuery($q);
316	$this->dbo->execute();
317	if ($this->dbo->getNumRows()) {
318	return true;
319	}
320
321	return false;
322	}
323
324	/**
325	* Generates an analogic invoice in PDF format for the given booking ID.
326	*
327	* @param int $idorder the ID of the booking.
328	* @param int $invnum the number of the invoice.
329	* @param string $invdate the date for the invoice in Y-m-d format.
330	*
331	* @return boolean
332	*/
333	protected function generateAnalogicInvoice($idorder, $invnum, $invdate)
334	{
335	if (empty($idorder)) {
336	return false;
337	}
338
339	// get booking record
340	$booking = array();
341	$q = "SELECT `o`.*,`co`.`idcustomer`,CONCAT_WS(' ',`c`.`first_name`,`c`.`last_name`) AS `customer_name`,`c`.`pin` AS `customer_pin`,`nat`.`country_name` FROM `#__vikbooking_orders` AS `o` LEFT JOIN `#__vikbooking_customers_orders` `co` ON `co`.`idorder`=`o`.`id` LEFT JOIN `#__vikbooking_customers` `c` ON `c`.`id`=`co`.`idcustomer` LEFT JOIN `#__vikbooking_countries` `nat` ON `nat`.`country_3_code`=`o`.`country` WHERE `o`.`id`=".(int)$idorder." AND `o`.`status`='confirmed' AND `o`.`total` > 0;";
342	$this->dbo->setQuery($q);
343	$this->dbo->execute();
344	if ($this->dbo->getNumRows() > 0) {
345	$booking = $this->dbo->loadAssoc();
346	}
347
348	if (!count($booking)) {
349	return false;
350	}
351
352	try {
353	$res = VikBooking::generateBookingInvoice($booking, $invnum, '', date($this->getDateFormat(), strtotime($invdate)));
354	} catch (Exception $e) {
355	return false;
356	}
357
358	return $res;
359	}
360
361	/**
362	* Loads an helper file to obtain HTML content within a buffer.
363	*
364	* @param string the path to the layout/helper file to include
365	* @param array the vars needed by the layout/helper file
366	*
367	* @return string the HTML content to print, or an empty string
368	*/
369	protected function loadHelperFile($fpath, $data = array())
370	{
371	if (!is_file($fpath)) {
372	return '';
373	}
374
375	// capture the content of the layout/helper file within a buffer
376	ob_start();
377	include $fpath;
378	$content = ob_get_contents();
379	ob_end_clean();
380
381	// return the content to be displayed
382	return $content;
383	}
384
385	/**
386	* Requires an helper file.
387	*
388	* @return void
389	*/
390	protected function importHelper($fpath)
391	{
392	if (!is_file($fpath)) {
393	return;
394	}
395
396	require_once $fpath;
397	}
398
399	/**
400	* Returns whether the driver has some session filters to
401	* immediately call getBookingsData() when the page loads.
402	* Child classes could override this method depending on the needs.
403	*
404	* @return boolean
405	*/
406	public function hasFiltersSet()
407	{
408	return false;
409	}
410
411	/**
412	* Loads the jQuery UI Datepicker.
413	* Method used only by sub-classes.
414	*
415	* @return self
416	*/
417	protected function loadDatePicker()
418	{
419	$vbo_app = VikBooking::getVboApplication();
420	$vbo_app->loadDatePicker();
421
422	return $this;
423	}
424
425	/**
426	* Loads all the rooms in VBO and returns the array.
427	*
428	* @return array associative array with key=ID value=data
429	*/
430	protected function getRooms()
431	{
432	$rooms = array();
433	$q = "SELECT * FROM `#__vikbooking_rooms` ORDER BY `name` ASC;";
434	$this->dbo->setQuery($q);
435	$this->dbo->execute();
436	if ($this->dbo->getNumRows() > 0) {
437	$all = $this->dbo->loadAssocList();
438	foreach ($all as $r) {
439	$rooms[$r['id']] = $r;
440	}
441	}
442
443	return $rooms;
444	}
445
446	/**
447	* Concatenates the JavaScript rules.
448	* Method used only by sub-classes.
449	*
450	* @param string $str
451	*
452	* @return self
453	*/
454	protected function setScript($str)
455	{
456	$this->driverScript .= $str."\n";
457
458	return $this;
459	}
460
461	/**
462	* Returns the aliquote number from the given record ID.
463	*
464	* @param int $idvat the ID of the IVA record
465	*
466	* @return float the aliquot found or 0
467	*/
468	protected function getAliquoteById($idvat)
469	{
470	$aliq = 0;
471
472	if (!empty($idvat)) {
473	$q = "SELECT `aliq` FROM `#__vikbooking_iva` WHERE `id`=".(int)$idvat.";";
474	$this->dbo->setQuery($q);
475	$this->dbo->execute();
476	if ($this->dbo->getNumRows()) {
477	$aliq = $this->dbo->loadResult();
478	}
479	}
480
481	return floatval($aliq);
482	}
483
484	/**
485	* Returns the aliquote number from the given price ID.
486	*
487	* @param int $idvat the ID of the IVA record
488	*
489	* @return float the aliquot found or 0
490	*/
491	protected function getAliquoteFromPriceId($idprice)
492	{
493	$aliq = 0;
494
495	if (!empty($idprice)) {
496	$q = "SELECT `p`.`idiva`,`i`.`aliq` FROM `#__vikbooking_prices` AS `p` LEFT JOIN `#__vikbooking_iva` `i` ON `i`.`id`=`p`.`idiva` WHERE `p`.`id`=".(int)$idprice.";";
497	$this->dbo->setQuery($q);
498	$this->dbo->execute();
499	if ($this->dbo->getNumRows()) {
500	$data = $this->dbo->loadAssoc();
501	$aliq = $data['aliq'];
502	}
503	}
504
505	return floatval($aliq);
506	}
507
508	/**
509	* Updates the current invoice number for later use.
510	*
511	* @param int $invnum the invoice number to set
512	*
513	* @return void
514	*/
515	protected function updateInvoiceNumber($invnum)
516	{
517	$q = "UPDATE `#__vikbooking_config` SET `setting`=".$this->dbo->quote((int)$invnum)." WHERE `param`='invoiceinum';";
518	$this->dbo->setQuery($q);
519	$this->dbo->execute();
520	}
521
522	/**
523	* Updates the progrssive number for the data transmission for this driver.
524	*
525	* @param int $num the prograssive number to set (should be already increased)
526	*
527	* @return void
528	*/
529	protected function updateProgressiveNumber($num)
530	{
531	$q = "UPDATE `#__vikbooking_einvoicing_config` SET `progcount`=".(int)$num." WHERE `driver`=".$this->dbo->quote($this->getFileName()).";";
532	$this->dbo->setQuery($q);
533	$this->dbo->execute();
534	}
535
536	/**
537	* Attempts to format the given XML string through DOMDocument.
538	* This method takes the XML string by reference.
539	*
540	* @param string $xml the XML string to be formatted
541	*
542	* @return string the formatted string or the original string
543	*/
544	protected function formatXmlString(&$xml)
545	{
546	if (!class_exists('DOMDocument')) {
547	// we cannot format the XML because DOMDocument is missing
548	return $xml;
549	}
550
551	$dom = new DOMDocument;
552	$dom->preserveWhiteSpace = false;
553	$dom->loadXML($xml);
554	$dom->formatOutput = true;
555	$xml = $dom->saveXML();
556
557	return $xml;
558	}
559
560	/**
561	* Returns whether the debug request has been set.
562	*
563	* @return boolean
564	*/
565	protected function debugging()
566	{
567	$debug = VikRequest::getInt('e4j_debug', 0, 'request');
568
569	return $debug;
570	}
571
572	/**
573	* Gets the current script string.
574	*
575	* @return string
576	*/
577	public function getScript()
578	{
579	return rtrim($this->driverScript, "\n");
580	}
581
582	/**
583	* Returns the date format in VBO for date, jQuery UI, Joomla.
584	* Method used only by sub-classes.
585	*
586	* @param string $type
587	*
588	* @return string
589	*/
590	protected function getDateFormat($type = 'date')
591	{
592	$nowdf = VikBooking::getDateFormat();
593	if ($nowdf == "%d/%m/%Y") {
594	$df = 'd/m/Y';
595	$juidf = 'dd/mm/yy';
596	} elseif ($nowdf == "%m/%d/%Y") {
597	$df = 'm/d/Y';
598	$juidf = 'mm/dd/yy';
599	} else {
600	$df = 'Y/m/d';
601	$juidf = 'yy/mm/dd';
602	}
603
604	switch ($type) {
605	case 'jui':
606	return $juidf;
607	case 'joomla':
608	return $nowdf;
609	default:
610	return $df;
611	}
612	}
613
614	/**
615	* Returns the translated weekday.
616	* Uses the back-end language definitions.
617	*
618	* @param int $wday
619	* @param string $type use 'long' for the full name of the week, short for the 3-char version
620	*
621	* @return string
622	*/
623	protected function getWdayString($wday, $type = 'long')
624	{
625	$wdays_map_long = array(
626	JText::translate('VBWEEKDAYZERO'),
627	JText::translate('VBWEEKDAYONE'),
628	JText::translate('VBWEEKDAYTWO'),
629	JText::translate('VBWEEKDAYTHREE'),
630	JText::translate('VBWEEKDAYFOUR'),
631	JText::translate('VBWEEKDAYFIVE'),
632	JText::translate('VBWEEKDAYSIX')
633	);
634
635	$wdays_map_short = array(
636	JText::translate('VBSUN'),
637	JText::translate('VBMON'),
638	JText::translate('VBTUE'),
639	JText::translate('VBWED'),
640	JText::translate('VBTHU'),
641	JText::translate('VBFRI'),
642	JText::translate('VBSAT')
643	);
644
645	if ($type != 'long') {
646	return isset($wdays_map_short[(int)$wday]) ? $wdays_map_short[(int)$wday] : '';
647	}
648
649	return isset($wdays_map_long[(int)$wday]) ? $wdays_map_long[(int)$wday] : '';
650	}
651
652	/**
653	* Returns the translated month.
654	* Uses the back-end language definitions.
655	*
656	* @param int $month the month to convert (from 1 to 12)
657	*
658	* @return string
659	*/
660	protected function getMonthString($mon)
661	{
662	$mon--;
663
664	$months_map_long = array(
665	JText::translate('VBMONTHONE'),
666	JText::translate('VBMONTHTWO'),
667	JText::translate('VBMONTHTHREE'),
668	JText::translate('VBMONTHFOUR'),
669	JText::translate('VBMONTHFIVE'),
670	JText::translate('VBMONTHSIX'),
671	JText::translate('VBMONTHSEVEN'),
672	JText::translate('VBMONTHEIGHT'),
673	JText::translate('VBMONTHNINE'),
674	JText::translate('VBMONTHTEN'),
675	JText::translate('VBMONTHELEVEN'),
676	JText::translate('VBMONTHTWELVE')
677	);
678
679	return isset($months_map_long[(int)$mon]) ? $months_map_long[(int)$mon] : '';
680	}
681
682	/**
683	* Replaces accents and special characters to their non-special version.
684	* Takes also rid of the ampersand symbol that would break the XML.
685	*
686	* @param string $string the string to parse
687	*
688	* @return string
689	*/
690	protected function convertSpecials($string)
691	{
692	// map of special characters
693	$table = array(
694	'À'=>'A', 'Á'=>'A', 'Â'=>'A', 'Ã'=>'A', 'Ä'=>'A', '�
695	'=>'A', 'Ă'=>'A', 'Ā'=>'A', 'Ą'=>'A', 'Æ'=>'A', 'Ǽ'=>'A',
696	'à'=>'a', 'á'=>'a', 'â'=>'a', 'ã'=>'a', 'ä'=>'a', 'å'=>'a', 'ă'=>'a', 'ā'=>'a', '�
697	'=>'a', 'æ'=>'a', 'ǽ'=>'a',
698
699	'Þ'=>'B', 'þ'=>'b', 'ß'=>'Ss',
700
701	'Ç'=>'C', 'Č'=>'C', 'Ć'=>'C', 'Ĉ'=>'C', 'Ċ'=>'C',
702	'ç'=>'c', 'č'=>'c', 'ć'=>'c', 'ĉ'=>'c', 'ċ'=>'c',
703
704	'Đ'=>'Dj', 'Ď'=>'D',
705	'đ'=>'dj', 'ď'=>'d',
706
707	'È'=>'E', 'É'=>'E', 'Ê'=>'E', 'Ë'=>'E', 'Ĕ'=>'E', 'Ē'=>'E', 'Ę'=>'E', 'Ė'=>'E',
708	'è'=>'e', 'é'=>'e', 'ê'=>'e', 'ë'=>'e', 'ĕ'=>'e', 'ē'=>'e', 'ę'=>'e', 'ė'=>'e',
709
710	'Ĝ'=>'G', 'Ğ'=>'G', 'Ġ'=>'G', 'Ģ'=>'G',
711	'ĝ'=>'g', 'ğ'=>'g', 'ġ'=>'g', 'ģ'=>'g',
712
713	'Ĥ'=>'H', 'Ħ'=>'H',
714	'ĥ'=>'h', 'ħ'=>'h',
715
716	'Ì'=>'I', 'Í'=>'I', 'Î'=>'I', 'Ï'=>'I', 'İ'=>'I', 'Ĩ'=>'I', 'Ī'=>'I', 'Ĭ'=>'I', 'Į'=>'I',
717	'ì'=>'i', 'í'=>'i', 'î'=>'i', 'ï'=>'i', 'į'=>'i', 'ĩ'=>'i', 'ī'=>'i', 'ĭ'=>'i', 'ı'=>'i',
718
719	'Ĵ'=>'J',
720	'ĵ'=>'j',
721
722	'Ķ'=>'K',
723	'ķ'=>'k', 'ĸ'=>'k',
724
725	'Ĺ'=>'L', 'Ļ'=>'L', 'Ľ'=>'L', 'Ŀ'=>'L', 'Ł'=>'L',
726	'ĺ'=>'l', 'ļ'=>'l', 'ľ'=>'l', 'ŀ'=>'l', 'ł'=>'l',
727
728	'Ñ'=>'N', 'Ń'=>'N', 'Ň'=>'N', '�
729	'=>'N', 'Ŋ'=>'N',
730	'ñ'=>'n', 'ń'=>'n', 'ň'=>'n', 'ņ'=>'n', 'ŋ'=>'n', 'ŉ'=>'n',
731
732	'Ò'=>'O', 'Ó'=>'O', 'Ô'=>'O', 'Õ'=>'O', 'Ö'=>'O', 'Ø'=>'O', 'Ō'=>'O', 'Ŏ'=>'O', 'Ő'=>'O', 'Œ'=>'O',
733	'ò'=>'o', 'ó'=>'o', 'ô'=>'o', 'õ'=>'o', 'ö'=>'o', 'ø'=>'o', 'ō'=>'o', 'ŏ'=>'o', 'ő'=>'o', 'œ'=>'o', 'ð'=>'o',
734
735	'Ŕ'=>'R', 'Ř'=>'R',
736	'ŕ'=>'r', 'ř'=>'r', 'ŗ'=>'r',
737
738	'Š'=>'S', 'Ŝ'=>'S', 'Ś'=>'S', 'Ş'=>'S',
739	'š'=>'s', 'ŝ'=>'s', 'ś'=>'s', 'ş'=>'s',
740
741	'Ŧ'=>'T', 'Ţ'=>'T', 'Ť'=>'T',
742	'ŧ'=>'t', 'ţ'=>'t', 'ť'=>'t',
743
744	'Ù'=>'U', 'Ú'=>'U', 'Û'=>'U', 'Ü'=>'U', 'Ũ'=>'U', 'Ū'=>'U', 'Ŭ'=>'U', 'Ů'=>'U', 'Ű'=>'U', 'Ų'=>'U',
745	'ù'=>'u', 'ú'=>'u', 'û'=>'u', 'ü'=>'u', 'ũ'=>'u', 'ū'=>'u', 'ŭ'=>'u', 'ů'=>'u', 'ű'=>'u', 'ų'=>'u',
746
747	'Ŵ'=>'W', 'Ẁ'=>'W', 'Ẃ'=>'W', 'Ẅ'=>'W',
748	'ŵ'=>'w', 'ẁ'=>'w', 'ẃ'=>'w', '�
749	'=>'w',
750
751	'Ý'=>'Y', 'Ÿ'=>'Y', 'Ŷ'=>'Y',
752	'ý'=>'y', 'ÿ'=>'y', 'ŷ'=>'y',
753
754	'Ž'=>'Z', 'Ź'=>'Z', 'Ż'=>'Z',
755	'ž'=>'z', 'ź'=>'z', 'ż'=>'z',
756	'+'=>'',
757	);
758
759	$string = strtr($string, $table);
760
761	$string = preg_replace("/[^\x9\xA\xD\x20-\x7F]/u", "", $string);
762
763	// replace ampersand
764	$string = str_replace('&', 'and', $string);
765	// convert to HTML entities for a safe XML content
766	$string = htmlentities($string);
767	// remove any ampersand added by htmlentities()
768	$string = str_replace('&', '', $string);
769
770	return $string;
771	}
772
773	/**
774	* Sets the columns for this driver.
775	*
776	* @param array $arr
777	*
778	* @return self
779	*/
780	protected function setDriverCols($arr)
781	{
782	$this->cols = $arr;
783
784	return $this;
785	}
786
787	/**
788	* Returns the columns for this driver.
789	* Should be called after getBookingsData()
790	* or the returned array will be empty.
791	*
792	* @return array
793	*/
794	public function getDriverCols()
795	{
796	return $this->cols;
797	}
798
799	/**
800	* Sorts the rows of the driver by key.
801	*
802	* @param string $krsort the key attribute of the array pairs
803	* @param string $krorder ascending (ASC) or descending (DESC)
804	*
805	* @return void
806	*/
807	protected function sortRows($krsort, $krorder)
808	{
809	if (empty($krsort) \|\| !(count($this->rows))) {
810	return;
811	}
812
813	$map = array();
814	foreach ($this->rows as $k => $row) {
815	foreach ($row as $kk => $v) {
816	if (isset($v['key']) && $v['key'] == $krsort) {
817	$map[$k] = $v['value'];
818	}
819	}
820	}
821	if (!(count($map))) {
822	return;
823	}
824
825	if ($krorder == 'ASC') {
826	asort($map);
827	} else {
828	arsort($map);
829	}
830
831	$sorted = array();
832	foreach ($map as $k => $v) {
833	$sorted[$k] = $this->rows[$k];
834	}
835
836	$this->rows = $sorted;
837	}
838
839	/**
840	* Sets the rows for this driver.
841	*
842	* @param array $arr
843	*
844	* @return self
845	*/
846	protected function setDriverRows($arr)
847	{
848	$this->rows = $arr;
849
850	return $this;
851	}
852
853	/**
854	* Returns the rows for this driver.
855	* Should be called after getBookingsData()
856	* or the returned array will be empty.
857	*
858	* @return array
859	*/
860	public function getDriverRows()
861	{
862	return $this->rows;
863	}
864
865	/**
866	* Sets the footer row (the totals) for this driver.
867	*
868	* @param array $arr
869	*
870	* @return self
871	*/
872	protected function setDriverFooterRow($arr)
873	{
874	$this->footerRow = $arr;
875
876	return $this;
877	}
878
879	/**
880	* Returns the footer row for this driver.
881	* Should be called after getBookingsData()
882	* or the returned array will be empty.
883	*
884	* @return array
885	*/
886	public function getDriverFooterRow()
887	{
888	return $this->footerRow;
889	}
890
891	/**
892	* Sets warning messages by concatenating the existing ones.
893	* Method used only by sub-classes.
894	*
895	* @param string $str
896	*
897	* @return self
898	*/
899	protected function setWarning($str)
900	{
901	$this->warning[] = $str;
902
903	return $this;
904	}
905
906	/**
907	* Gets the current warning string.
908	*
909	* @return string
910	*/
911	public function getWarning()
912	{
913	return implode('<br/>', $this->warning);
914	}
915
916	/**
917	* Sets errors by concatenating the existing ones.
918	* Method used only by sub-classes.
919	*
920	* @param string $str
921	*
922	* @return self
923	*/
924	protected function setError($str)
925	{
926	$this->error[] = $str;
927
928	return $this;
929	}
930
931	/**
932	* Gets the current error string.
933	*
934	* @return string
935	*/
936	public function getError()
937	{
938	return implode('<br/>', $this->error);
939	}
940
941	/**
942	* Sets info messages by concatenating the existing ones.
943	* Method used only by sub-classes.
944	*
945	* @param string $str
946	*
947	* @return self
948	*/
949	protected function setInfo($str)
950	{
951	$this->info[] = $str;
952
953	return $this;
954	}
955
956	/**
957	* Gets the current info string.
958	*
959	* @return string
960	*/
961	public function getInfo()
962	{
963	return implode('<br/>', $this->info);
964	}
965	}
966