xref: /webtrees/app/GedcomRecord.php (revision e80729a14bd6eb5653b213bcf9d3d977ef32136e)
1<?php
2/**
3 * webtrees: online genealogy
4 * Copyright (C) 2017 webtrees development team
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
15 */
16namespace Fisharebest\Webtrees;
17
18use Fisharebest\Webtrees\Functions\Functions;
19use Fisharebest\Webtrees\Functions\FunctionsDate;
20use Fisharebest\Webtrees\Functions\FunctionsImport;
21use Fisharebest\Webtrees\Functions\FunctionsPrint;
22
23/**
24 * A GEDCOM object.
25 */
26class GedcomRecord {
27	const RECORD_TYPE = 'UNKNOWN';
28	const URL_PREFIX  = 'gedrecord.php?pid=';
29
30	/** @var string The record identifier */
31	protected $xref;
32
33	/** @var Tree  The family tree to which this record belongs */
34	protected $tree;
35
36	/** @var string  GEDCOM data (before any pending edits) */
37	protected $gedcom;
38
39	/** @var string|null  GEDCOM data (after any pending edits) */
40	protected $pending;
41
42	/** @var Fact[] facts extracted from $gedcom/$pending */
43	protected $facts;
44
45	/** @var bool Can we display details of this record to Auth::PRIV_PRIVATE */
46	private $disp_public;
47
48	/** @var bool Can we display details of this record to Auth::PRIV_USER */
49	private $disp_user;
50
51	/** @var bool Can we display details of this record to Auth::PRIV_NONE */
52	private $disp_none;
53
54	/** @var string[][] All the names of this individual */
55	protected $_getAllNames;
56
57	/** @var int Cached result */
58	protected $_getPrimaryName;
59
60	/** @var int Cached result */
61	protected $_getSecondaryName;
62
63	/** @var GedcomRecord[][] Allow getInstance() to return references to existing objects */
64	protected static $gedcom_record_cache;
65
66	/** @var \stdClass[][] Fetch all pending edits in one database query */
67	private static $pending_record_cache;
68
69	/**
70	 * Create a GedcomRecord object from raw GEDCOM data.
71	 *
72	 * @param string      $xref
73	 * @param string      $gedcom  an empty string for new/pending records
74	 * @param string|null $pending null for a record with no pending edits,
75	 *                             empty string for records with pending deletions
76	 * @param Tree        $tree
77	 */
78	public function __construct($xref, $gedcom, $pending, $tree) {
79		$this->xref    = $xref;
80		$this->gedcom  = $gedcom;
81		$this->pending = $pending;
82		$this->tree    = $tree;
83
84		$this->parseFacts();
85	}
86
87	/**
88	 * Split the record into facts
89	 */
90	private function parseFacts() {
91		// Split the record into facts
92		if ($this->gedcom) {
93			$gedcom_facts = preg_split('/\n(?=1)/s', $this->gedcom);
94			array_shift($gedcom_facts);
95		} else {
96			$gedcom_facts = [];
97		}
98		if ($this->pending) {
99			$pending_facts = preg_split('/\n(?=1)/s', $this->pending);
100			array_shift($pending_facts);
101		} else {
102			$pending_facts = [];
103		}
104
105		$this->facts = [];
106
107		foreach ($gedcom_facts as $gedcom_fact) {
108			$fact = new Fact($gedcom_fact, $this, md5($gedcom_fact));
109			if ($this->pending !== null && !in_array($gedcom_fact, $pending_facts)) {
110				$fact->setPendingDeletion();
111			}
112			$this->facts[] = $fact;
113		}
114		foreach ($pending_facts as $pending_fact) {
115			if (!in_array($pending_fact, $gedcom_facts)) {
116				$fact = new Fact($pending_fact, $this, md5($pending_fact));
117				$fact->setPendingAddition();
118				$this->facts[] = $fact;
119			}
120		}
121	}
122
123	/**
124	 * Get an instance of a GedcomRecord object. For single records,
125	 * we just receive the XREF. For bulk records (such as lists
126	 * and search results) we can receive the GEDCOM data as well.
127	 *
128	 * @param string      $xref
129	 * @param Tree        $tree
130	 * @param string|null $gedcom
131	 *
132	 * @throws \Exception
133	 *
134	 * @return GedcomRecord|Individual|Family|Source|Repository|Media|Note|null
135	 */
136	public static function getInstance($xref, Tree $tree, $gedcom = null) {
137		$tree_id = $tree->getTreeId();
138
139		// Is this record already in the cache, and of the correct type?
140		if (isset(self::$gedcom_record_cache[$xref][$tree_id])) {
141			$record = self::$gedcom_record_cache[$xref][$tree_id];
142
143			if ($record instanceof static) {
144				return $record;
145			} else {
146				null;
147			}
148		}
149
150		// Do we need to fetch the record from the database?
151		if ($gedcom === null) {
152			$gedcom = static::fetchGedcomRecord($xref, $tree_id);
153		}
154
155		// If we can edit, then we also need to be able to see pending records.
156		if (Auth::isEditor($tree)) {
157			if (!isset(self::$pending_record_cache[$tree_id])) {
158				// Fetch all pending records in one database query
159				self::$pending_record_cache[$tree_id] = [];
160				$rows                                 = Database::prepare(
161					"SELECT xref, new_gedcom FROM `##change` WHERE status = 'pending' AND gedcom_id = :tree_id ORDER BY change_id"
162				)->execute([
163					'tree_id' => $tree_id,
164				])->fetchAll();
165				foreach ($rows as $row) {
166					self::$pending_record_cache[$tree_id][$row->xref] = $row->new_gedcom;
167				}
168			}
169
170			if (isset(self::$pending_record_cache[$tree_id][$xref])) {
171				// A pending edit exists for this record
172				$pending = self::$pending_record_cache[$tree_id][$xref];
173			} else {
174				$pending = null;
175			}
176		} else {
177			// There are no pending changes for this record
178			$pending = null;
179		}
180
181		// No such record exists
182		if ($gedcom === null && $pending === null) {
183			return null;
184		}
185
186		// Create the object
187		if (preg_match('/^0 @(' . WT_REGEX_XREF . ')@ (' . WT_REGEX_TAG . ')/', $gedcom . $pending, $match)) {
188			$xref = $match[1]; // Collation - we may have requested I123 and found i123
189			$type = $match[2];
190		} elseif (preg_match('/^0 (HEAD|TRLR)/', $gedcom . $pending, $match)) {
191			$xref = $match[1];
192			$type = $match[1];
193		} elseif ($gedcom . $pending) {
194			throw new \Exception('Unrecognized GEDCOM record: ' . $gedcom);
195		} else {
196			// A record with both pending creation and pending deletion
197			$type = static::RECORD_TYPE;
198		}
199
200		switch ($type) {
201		case 'INDI':
202			$record = new Individual($xref, $gedcom, $pending, $tree);
203			break;
204		case 'FAM':
205			$record = new Family($xref, $gedcom, $pending, $tree);
206			break;
207		case 'SOUR':
208			$record = new Source($xref, $gedcom, $pending, $tree);
209			break;
210		case 'OBJE':
211			$record = new Media($xref, $gedcom, $pending, $tree);
212			break;
213		case 'REPO':
214			$record = new Repository($xref, $gedcom, $pending, $tree);
215			break;
216		case 'NOTE':
217			$record = new Note($xref, $gedcom, $pending, $tree);
218			break;
219		default:
220			$record = new self($xref, $gedcom, $pending, $tree);
221			break;
222		}
223
224		// Store it in the cache
225		self::$gedcom_record_cache[$xref][$tree_id] = $record;
226
227		return $record;
228	}
229
230	/**
231	 * Fetch data from the database
232	 *
233	 * @param string $xref
234	 * @param int    $tree_id
235	 *
236	 * @return null|string
237	 */
238	protected static function fetchGedcomRecord($xref, $tree_id) {
239		// We don't know what type of object this is. Try each one in turn.
240		$data = Individual::fetchGedcomRecord($xref, $tree_id);
241		if ($data) {
242			return $data;
243		}
244		$data = Family::fetchGedcomRecord($xref, $tree_id);
245		if ($data) {
246			return $data;
247		}
248		$data = Source::fetchGedcomRecord($xref, $tree_id);
249		if ($data) {
250			return $data;
251		}
252		$data = Repository::fetchGedcomRecord($xref, $tree_id);
253		if ($data) {
254			return $data;
255		}
256		$data = Media::fetchGedcomRecord($xref, $tree_id);
257		if ($data) {
258			return $data;
259		}
260		$data = Note::fetchGedcomRecord($xref, $tree_id);
261		if ($data) {
262			return $data;
263		}
264		// Some other type of record...
265
266		return Database::prepare(
267			"SELECT o_gedcom FROM `##other` WHERE o_id = :xref AND o_file = :tree_id"
268		)->execute([
269			'xref'    => $xref,
270			'tree_id' => $tree_id,
271		])->fetchOne();
272	}
273
274	/**
275	 * Get the XREF for this record
276	 *
277	 * @return string
278	 */
279	public function getXref() {
280		return $this->xref;
281	}
282
283	/**
284	 * Get the tree to which this record belongs
285	 *
286	 * @return Tree
287	 */
288	public function getTree() {
289		return $this->tree;
290	}
291
292	/**
293	 * Application code should access data via Fact objects.
294	 * This function exists to support old code.
295	 *
296	 * @return string
297	 */
298	public function getGedcom() {
299		if ($this->pending === null) {
300			return $this->gedcom;
301		} else {
302			return $this->pending;
303		}
304	}
305
306	/**
307	 * Does this record have a pending change?
308	 *
309	 * @return bool
310	 */
311	public function isPendingAddtion() {
312		return $this->pending !== null;
313	}
314
315	/**
316	 * Does this record have a pending deletion?
317	 *
318	 * @return bool
319	 */
320	public function isPendingDeletion() {
321		return $this->pending === '';
322	}
323
324	/**
325	 * Generate a URL to this record, suitable for use in HTML, etc.
326	 *
327	 * @return string
328	 */
329	public function getHtmlUrl() {
330		return $this->getLinkUrl(static::URL_PREFIX, '&amp;');
331	}
332
333	/**
334	 * Generate a URL to this record, suitable for use in javascript, HTTP headers, etc.
335	 *
336	 * @return string
337	 */
338	public function getRawUrl() {
339		return $this->getLinkUrl(static::URL_PREFIX, '&');
340	}
341
342	/**
343	 * Generate a URL to this record.
344	 *
345	 * @param string $link
346	 * @param string $separator
347	 *
348	 * @return string
349	 */
350	private function getLinkUrl($link, $separator) {
351		return $link . $this->getXref() . $separator . 'ged=' . $this->tree->getNameUrl();
352	}
353
354	/**
355	 * Work out whether this record can be shown to a user with a given access level
356	 *
357	 * @param int $access_level
358	 *
359	 * @return bool
360	 */
361	private function canShowRecord($access_level) {
362		// This setting would better be called "$ENABLE_PRIVACY"
363		if (!$this->tree->getPreference('HIDE_LIVE_PEOPLE')) {
364			return true;
365		}
366
367		// We should always be able to see our own record (unless an admin is applying download restrictions)
368		if ($this->getXref() === $this->tree->getUserPreference(Auth::user(), 'gedcomid') && $access_level === Auth::accessLevel($this->tree)) {
369			return true;
370		}
371
372		// Does this record have a RESN?
373		if (strpos($this->gedcom, "\n1 RESN confidential")) {
374			return Auth::PRIV_NONE >= $access_level;
375		}
376		if (strpos($this->gedcom, "\n1 RESN privacy")) {
377			return Auth::PRIV_USER >= $access_level;
378		}
379		if (strpos($this->gedcom, "\n1 RESN none")) {
380			return true;
381		}
382
383		// Does this record have a default RESN?
384		$individual_privacy = $this->tree->getIndividualPrivacy();
385		if (isset($individual_privacy[$this->getXref()])) {
386			return $individual_privacy[$this->getXref()] >= $access_level;
387		}
388
389		// Privacy rules do not apply to admins
390		if (Auth::PRIV_NONE >= $access_level) {
391			return true;
392		}
393
394		// Different types of record have different privacy rules
395		return $this->canShowByType($access_level);
396	}
397
398	/**
399	 * Each object type may have its own special rules, and re-implement this function.
400	 *
401	 * @param int $access_level
402	 *
403	 * @return bool
404	 */
405	protected function canShowByType($access_level) {
406		$fact_privacy = $this->tree->getFactPrivacy();
407
408		if (isset($fact_privacy[static::RECORD_TYPE])) {
409			// Restriction found
410			return $fact_privacy[static::RECORD_TYPE] >= $access_level;
411		} else {
412			// No restriction found - must be public:
413			return true;
414		}
415	}
416
417	/**
418	 * Can the details of this record be shown?
419	 *
420	 * @param int|null $access_level
421	 *
422	 * @return bool
423	 */
424	public function canShow($access_level = null) {
425		if ($access_level === null) {
426			$access_level = Auth::accessLevel($this->tree);
427		}
428
429// CACHING: this function can take three different parameters,
430		// and therefore needs three different caches for the result.
431		switch ($access_level) {
432		case Auth::PRIV_PRIVATE: // visitor
433			if ($this->disp_public === null) {
434				$this->disp_public = $this->canShowRecord(Auth::PRIV_PRIVATE);
435			}
436
437			return $this->disp_public;
438		case Auth::PRIV_USER: // member
439			if ($this->disp_user === null) {
440				$this->disp_user = $this->canShowRecord(Auth::PRIV_USER);
441			}
442
443			return $this->disp_user;
444		case Auth::PRIV_NONE: // admin
445			if ($this->disp_none === null) {
446				$this->disp_none = $this->canShowRecord(Auth::PRIV_NONE);
447			}
448
449			return $this->disp_none;
450		case Auth::PRIV_HIDE: // hidden from admins
451			// We use this value to bypass privacy checks. For example,
452			// when downloading data or when calculating privacy itself.
453			return true;
454		default:
455			// Should never get here.
456			return false;
457		}
458	}
459
460	/**
461	 * Can the name of this record be shown?
462	 *
463	 * @param int|null $access_level
464	 *
465	 * @return bool
466	 */
467	public function canShowName($access_level = null) {
468		if ($access_level === null) {
469			$access_level = Auth::accessLevel($this->tree);
470		}
471
472		return $this->canShow($access_level);
473	}
474
475	/**
476	 * Can we edit this record?
477	 *
478	 * @return bool
479	 */
480	public function canEdit() {
481		return Auth::isManager($this->tree) || Auth::isEditor($this->tree) && strpos($this->gedcom, "\n1 RESN locked") === false;
482	}
483
484	/**
485	 * Remove private data from the raw gedcom record.
486	 * Return both the visible and invisible data. We need the invisible data when editing.
487	 *
488	 * @param int $access_level
489	 *
490	 * @return string
491	 */
492	public function privatizeGedcom($access_level) {
493		if ($access_level == Auth::PRIV_HIDE) {
494			// We may need the original record, for example when downloading a GEDCOM or clippings cart
495			return $this->gedcom;
496		} elseif ($this->canShow($access_level)) {
497			// The record is not private, but the individual facts may be.
498
499			// Include the entire first line (for NOTE records)
500			list($gedrec) = explode("\n", $this->gedcom, 2);
501
502			// Check each of the facts for access
503			foreach ($this->getFacts(null, false, $access_level) as $fact) {
504				$gedrec .= "\n" . $fact->getGedcom();
505			}
506
507			return $gedrec;
508		} else {
509			// We cannot display the details, but we may be able to display
510			// limited data, such as links to other records.
511			return $this->createPrivateGedcomRecord($access_level);
512		}
513	}
514
515	/**
516	 * Generate a private version of this record
517	 *
518	 * @param int $access_level
519	 *
520	 * @return string
521	 */
522	protected function createPrivateGedcomRecord($access_level) {
523		return '0 @' . $this->xref . '@ ' . static::RECORD_TYPE . "\n1 NOTE " . I18N::translate('Private');
524	}
525
526	/**
527	 * Convert a name record into sortable and full/display versions. This default
528	 * should be OK for simple record types. INDI/FAM records will need to redefine it.
529	 *
530	 * @param string $type
531	 * @param string $value
532	 * @param string $gedcom
533	 */
534	protected function addName($type, $value, $gedcom) {
535		$this->_getAllNames[] = [
536			'type'   => $type,
537			'sort'   => preg_replace_callback('/([0-9]+)/', function ($matches) { return str_pad($matches[0], 10, '0', STR_PAD_LEFT); }, $value),
538			'full'   => '<span dir="auto">' . Filter::escapeHtml($value) . '</span>', // This is used for display
539			'fullNN' => $value, // This goes into the database
540		];
541	}
542
543	/**
544	 * Get all the names of a record, including ROMN, FONE and _HEB alternatives.
545	 * Records without a name (e.g. FAM) will need to redefine this function.
546	 * Parameters: the level 1 fact containing the name.
547	 * Return value: an array of name structures, each containing
548	 * ['type'] = the gedcom fact, e.g. NAME, TITL, FONE, _HEB, etc.
549	 * ['full'] = the name as specified in the record, e.g. 'Vincent van Gogh' or 'John Unknown'
550	 * ['sort'] = a sortable version of the name (not for display), e.g. 'Gogh, Vincent' or '@N.N., John'
551	 *
552	 * @param int    $level
553	 * @param string $fact_type
554	 * @param Fact[] $facts
555	 */
556	protected function extractNamesFromFacts($level, $fact_type, $facts) {
557		$sublevel    = $level + 1;
558		$subsublevel = $sublevel + 1;
559		foreach ($facts as $fact) {
560			if (preg_match_all("/^{$level} ({$fact_type}) (.+)((\n[{$sublevel}-9].+)*)/m", $fact->getGedcom(), $matches, PREG_SET_ORDER)) {
561				foreach ($matches as $match) {
562					// Treat 1 NAME / 2 TYPE married the same as _MARNM
563					if ($match[1] == 'NAME' && strpos($match[3], "\n2 TYPE married") !== false) {
564						$this->addName('_MARNM', $match[2], $fact->getGedcom());
565					} else {
566						$this->addName($match[1], $match[2], $fact->getGedcom());
567					}
568					if ($match[3] && preg_match_all("/^{$sublevel} (ROMN|FONE|_\w+) (.+)((\n[{$subsublevel}-9].+)*)/m", $match[3], $submatches, PREG_SET_ORDER)) {
569						foreach ($submatches as $submatch) {
570							$this->addName($submatch[1], $submatch[2], $match[3]);
571						}
572					}
573				}
574			}
575		}
576	}
577
578	/**
579	 * Default for "other" object types
580	 */
581	public function extractNames() {
582		$this->addName(static::RECORD_TYPE, $this->getFallBackName(), null);
583	}
584
585	/**
586	 * Derived classes should redefine this function, otherwise the object will have no name
587	 *
588	 * @return string[][]
589	 */
590	public function getAllNames() {
591		if ($this->_getAllNames === null) {
592			$this->_getAllNames = [];
593			if ($this->canShowName()) {
594				// Ask the record to extract its names
595				$this->extractNames();
596				// No name found? Use a fallback.
597				if (!$this->_getAllNames) {
598					$this->addName(static::RECORD_TYPE, $this->getFallBackName(), null);
599				}
600			} else {
601				$this->addName(static::RECORD_TYPE, I18N::translate('Private'), null);
602			}
603		}
604
605		return $this->_getAllNames;
606	}
607
608	/**
609	 * If this object has no name, what do we call it?
610	 *
611	 * @return string
612	 */
613	public function getFallBackName() {
614		return $this->getXref();
615	}
616
617	/**
618	 * Which of the (possibly several) names of this record is the primary one.
619	 *
620	 * @return int
621	 */
622	public function getPrimaryName() {
623		static $language_script;
624
625		if ($language_script === null) {
626			$language_script = I18N::languageScript(WT_LOCALE);
627		}
628
629		if ($this->_getPrimaryName === null) {
630			// Generally, the first name is the primary one....
631			$this->_getPrimaryName = 0;
632			// ...except when the language/name use different character sets
633			if (count($this->getAllNames()) > 1) {
634				foreach ($this->getAllNames() as $n => $name) {
635					if ($name['type'] !== '_MARNM' && I18N::textScript($name['sort']) === $language_script) {
636						$this->_getPrimaryName = $n;
637						break;
638					}
639				}
640			}
641		}
642
643		return $this->_getPrimaryName;
644	}
645
646	/**
647	 * Which of the (possibly several) names of this record is the secondary one.
648	 *
649	 * @return int
650	 */
651	public function getSecondaryName() {
652		if (is_null($this->_getSecondaryName)) {
653			// Generally, the primary and secondary names are the same
654			$this->_getSecondaryName = $this->getPrimaryName();
655			// ....except when there are names with different character sets
656			$all_names = $this->getAllNames();
657			if (count($all_names) > 1) {
658				$primary_script = I18N::textScript($all_names[$this->getPrimaryName()]['sort']);
659				foreach ($all_names as $n => $name) {
660					if ($n != $this->getPrimaryName() && $name['type'] != '_MARNM' && I18N::textScript($name['sort']) != $primary_script) {
661						$this->_getSecondaryName = $n;
662						break;
663					}
664				}
665			}
666		}
667
668		return $this->_getSecondaryName;
669	}
670
671	/**
672	 * Allow the choice of primary name to be overidden, e.g. in a search result
673	 *
674	 * @param int $n
675	 */
676	public function setPrimaryName($n) {
677		$this->_getPrimaryName   = $n;
678		$this->_getSecondaryName = null;
679	}
680
681	/**
682	 * Allow native PHP functions such as array_unique() to work with objects
683	 *
684	 * @return string
685	 */
686	public function __toString() {
687		return $this->xref . '@' . $this->tree->getTreeId();
688	}
689
690	/**
691	 * Static helper function to sort an array of objects by name
692	 * Records whose names cannot be displayed are sorted at the end.
693	 *
694	 * @param GedcomRecord $x
695	 * @param GedcomRecord $y
696	 *
697	 * @return int
698	 */
699	public static function compare(GedcomRecord $x, GedcomRecord $y) {
700		if ($x->canShowName()) {
701			if ($y->canShowName()) {
702				return I18N::strcasecmp($x->getSortName(), $y->getSortName());
703			} else {
704				return -1; // only $y is private
705			}
706		} else {
707			if ($y->canShowName()) {
708				return 1; // only $x is private
709			} else {
710				return 0; // both $x and $y private
711			}
712		}
713	}
714
715	/**
716	 * Get variants of the name
717	 *
718	 * @return string
719	 */
720	public function getFullName() {
721		if ($this->canShowName()) {
722			$tmp = $this->getAllNames();
723
724			return $tmp[$this->getPrimaryName()]['full'];
725		} else {
726			return I18N::translate('Private');
727		}
728	}
729
730	/**
731	 * Get a sortable version of the name. Do not display this!
732	 *
733	 * @return string
734	 */
735	public function getSortName() {
736		// The sortable name is never displayed, no need to call canShowName()
737		$tmp = $this->getAllNames();
738
739		return $tmp[$this->getPrimaryName()]['sort'];
740	}
741
742	/**
743	 * Get the full name in an alternative character set
744	 *
745	 * @return null|string
746	 */
747	public function getAddName() {
748		if ($this->canShowName() && $this->getPrimaryName() != $this->getSecondaryName()) {
749			$all_names = $this->getAllNames();
750
751			return $all_names[$this->getSecondaryName()]['full'];
752		} else {
753			return null;
754		}
755	}
756
757	/**
758	 * Format this object for display in a list
759	 * If $find is set, then we are displaying items from a selection list.
760	 * $name allows us to use something other than the record name.
761	 *
762	 * @param string $tag
763	 * @param bool   $find
764	 * @param null   $name
765	 *
766	 * @return string
767	 */
768	public function formatList($tag = 'li', $find = false, $name = null) {
769		if (is_null($name)) {
770			$name = $this->getFullName();
771		}
772		$html = '<a href="' . $this->getHtmlUrl() . '"';
773		if ($find) {
774			$html .= ' onclick="pasteid(\'' . $this->getXref() . '\', \'' . htmlentities($name) . '\');"';
775		}
776		$html .= ' class="list_item"><b>' . $name . '</b>';
777		$html .= $this->formatListDetails();
778		$html = '<' . $tag . '>' . $html . '</a></' . $tag . '>';
779
780		return $html;
781	}
782
783	/**
784	 * This function should be redefined in derived classes to show any major
785	 * identifying characteristics of this record.
786	 *
787	 * @return string
788	 */
789	public function formatListDetails() {
790		return '';
791	}
792
793	/**
794	 * Extract/format the first fact from a list of facts.
795	 *
796	 * @param string $facts
797	 * @param int    $style
798	 *
799	 * @return string
800	 */
801	public function formatFirstMajorFact($facts, $style) {
802		foreach ($this->getFacts($facts, true) as $event) {
803			// Only display if it has a date or place (or both)
804			if ($event->getDate()->isOK() && !$event->getPlace()->isEmpty()) {
805				$joiner = ' — ';
806			} else {
807				$joiner = '';
808			}
809			if ($event->getDate()->isOK() || !$event->getPlace()->isEmpty()) {
810				switch ($style) {
811				case 1:
812					return '<br><em>' . $event->getLabel() . ' ' . FunctionsPrint::formatFactDate($event, $this, false, false) . $joiner . FunctionsPrint::formatFactPlace($event) . '</em>';
813				case 2:
814					return '<dl><dt class="label">' . $event->getLabel() . '</dt><dd class="field">' . FunctionsPrint::formatFactDate($event, $this, false, false) . $joiner . FunctionsPrint::formatFactPlace($event) . '</dd></dl>';
815				}
816			}
817		}
818
819		return '';
820	}
821
822	/**
823	 * Find individuals linked to this record.
824	 *
825	 * @param string $link
826	 *
827	 * @return Individual[]
828	 */
829	public function linkedIndividuals($link) {
830		$rows = Database::prepare(
831			"SELECT i_id AS xref, i_gedcom AS gedcom" .
832			" FROM `##individuals`" .
833			" JOIN `##link` ON i_file = l_file AND i_id = l_from" .
834			" LEFT JOIN `##name` ON i_file = n_file AND i_id = n_id AND n_num = 0" .
835			" WHERE i_file = :tree_id AND l_type = :link AND l_to = :xref" .
836			" ORDER BY n_sort COLLATE :collation"
837		)->execute([
838			'tree_id'   => $this->tree->getTreeId(),
839			'link'      => $link,
840			'xref'      => $this->xref,
841			'collation' => I18N::collation(),
842		])->fetchAll();
843
844		$list = [];
845		foreach ($rows as $row) {
846			$record = Individual::getInstance($row->xref, $this->tree, $row->gedcom);
847			if ($record->canShowName()) {
848				$list[] = $record;
849			}
850		}
851
852		return $list;
853	}
854
855	/**
856	 * Find families linked to this record.
857	 *
858	 * @param string $link
859	 *
860	 * @return Family[]
861	 */
862	public function linkedFamilies($link) {
863		$rows = Database::prepare(
864			"SELECT f_id AS xref, f_gedcom AS gedcom" .
865			" FROM `##families`" .
866			" JOIN `##link` ON f_file = l_file AND f_id = l_from" .
867			" LEFT JOIN `##name` ON f_file = n_file AND f_id = n_id AND n_num = 0" .
868			" WHERE f_file = :tree_id AND l_type = :link AND l_to = :xref"
869		)->execute([
870			'tree_id' => $this->tree->getTreeId(),
871			'link'    => $link,
872			'xref'    => $this->xref,
873		])->fetchAll();
874
875		$list = [];
876		foreach ($rows as $row) {
877			$record = Family::getInstance($row->xref, $this->tree, $row->gedcom);
878			if ($record->canShowName()) {
879				$list[] = $record;
880			}
881		}
882
883		return $list;
884	}
885
886	/**
887	 * Find sources linked to this record.
888	 *
889	 * @param string $link
890	 *
891	 * @return Source[]
892	 */
893	public function linkedSources($link) {
894		$rows = Database::prepare(
895			"SELECT s_id AS xref, s_gedcom AS gedcom" .
896			" FROM `##sources`" .
897			" JOIN `##link` ON s_file = l_file AND s_id = l_from" .
898			" WHERE s_file = :tree_id AND l_type = :link AND l_to = :xref" .
899			" ORDER BY s_name COLLATE :collation"
900		)->execute([
901			'tree_id'   => $this->tree->getTreeId(),
902			'link'      => $link,
903			'xref'      => $this->xref,
904			'collation' => I18N::collation(),
905		])->fetchAll();
906
907		$list = [];
908		foreach ($rows as $row) {
909			$record = Source::getInstance($row->xref, $this->tree, $row->gedcom);
910			if ($record->canShowName()) {
911				$list[] = $record;
912			}
913		}
914
915		return $list;
916	}
917
918	/**
919	 * Find media objects linked to this record.
920	 *
921	 * @param string $link
922	 *
923	 * @return Media[]
924	 */
925	public function linkedMedia($link) {
926		$rows = Database::prepare(
927			"SELECT m_id AS xref, m_gedcom AS gedcom" .
928			" FROM `##media`" .
929			" JOIN `##link` ON m_file = l_file AND m_id = l_from" .
930			" WHERE m_file = :tree_id AND l_type = :link AND l_to = :xref" .
931			" ORDER BY m_titl COLLATE :collation"
932		)->execute([
933			'tree_id'   => $this->tree->getTreeId(),
934			'link'      => $link,
935			'xref'      => $this->xref,
936			'collation' => I18N::collation(),
937		])->fetchAll();
938
939		$list = [];
940		foreach ($rows as $row) {
941			$record = Media::getInstance($row->xref, $this->tree, $row->gedcom);
942			if ($record->canShowName()) {
943				$list[] = $record;
944			}
945		}
946
947		return $list;
948	}
949
950	/**
951	 * Find notes linked to this record.
952	 *
953	 * @param string $link
954	 *
955	 * @return Note[]
956	 */
957	public function linkedNotes($link) {
958		$rows = Database::prepare(
959			"SELECT o_id AS xref, o_gedcom AS gedcom" .
960			" FROM `##other`" .
961			" JOIN `##link` ON o_file = l_file AND o_id = l_from" .
962			" LEFT JOIN `##name` ON o_file = n_file AND o_id = n_id AND n_num = 0" .
963			" WHERE o_file = :tree_id AND o_type = 'NOTE' AND l_type = :link AND l_to = :xref" .
964			" ORDER BY n_sort COLLATE :collation"
965		)->execute([
966			'tree_id'   => $this->tree->getTreeId(),
967			'link'      => $link,
968			'xref'      => $this->xref,
969			'collation' => I18N::collation(),
970		])->fetchAll();
971
972		$list = [];
973		foreach ($rows as $row) {
974			$record = Note::getInstance($row->xref, $this->tree, $row->gedcom);
975			if ($record->canShowName()) {
976				$list[] = $record;
977			}
978		}
979
980		return $list;
981	}
982
983	/**
984	 * Find repositories linked to this record.
985	 *
986	 * @param string $link
987	 *
988	 * @return Repository[]
989	 */
990	public function linkedRepositories($link) {
991		$rows = Database::prepare(
992			"SELECT o_id AS xref, o_gedcom AS gedcom" .
993			" FROM `##other`" .
994			" JOIN `##link` ON o_file = l_file AND o_id = l_from" .
995			" LEFT JOIN `##name` ON o_file = n_file AND o_id = n_id AND n_num = 0" .
996			" WHERE o_file = :tree_id AND o_type = 'REPO' AND l_type = :link AND l_to = :xref" .
997			" ORDER BY n_sort COLLATE :collation"
998		)->execute([
999			'tree_id'   => $this->tree->getTreeId(),
1000			'link'      => $link,
1001			'xref'      => $this->xref,
1002			'collation' => I18N::collation(),
1003		])->fetchAll();
1004
1005		$list = [];
1006		foreach ($rows as $row) {
1007			$record = Repository::getInstance($row->xref, $this->tree, $row->gedcom);
1008			if ($record->canShowName()) {
1009				$list[] = $record;
1010			}
1011		}
1012
1013		return $list;
1014	}
1015
1016	/**
1017	 * Get all attributes (e.g. DATE or PLAC) from an event (e.g. BIRT or MARR).
1018	 * This is used to display multiple events on the individual/family lists.
1019	 * Multiple events can exist because of uncertainty in dates, dates in different
1020	 * calendars, place-names in both latin and hebrew character sets, etc.
1021	 * It also allows us to combine dates/places from different events in the summaries.
1022	 *
1023	 * @param string $event_type
1024	 *
1025	 * @return Date[]
1026	 */
1027	public function getAllEventDates($event_type) {
1028		$dates = [];
1029		foreach ($this->getFacts($event_type) as $event) {
1030			if ($event->getDate()->isOK()) {
1031				$dates[] = $event->getDate();
1032			}
1033		}
1034
1035		return $dates;
1036	}
1037
1038	/**
1039	 * Get all the places for a particular type of event
1040	 *
1041	 * @param string $event_type
1042	 *
1043	 * @return array
1044	 */
1045	public function getAllEventPlaces($event_type) {
1046		$places = [];
1047		foreach ($this->getFacts($event_type) as $event) {
1048			if (preg_match_all('/\n(?:2 PLAC|3 (?:ROMN|FONE|_HEB)) +(.+)/', $event->getGedcom(), $ged_places)) {
1049				foreach ($ged_places[1] as $ged_place) {
1050					$places[] = $ged_place;
1051				}
1052			}
1053		}
1054
1055		return $places;
1056	}
1057
1058	/**
1059	 * Get the first (i.e. prefered) Fact for the given fact type
1060	 *
1061	 * @param string $tag
1062	 *
1063	 * @return Fact|null
1064	 */
1065	public function getFirstFact($tag) {
1066		foreach ($this->getFacts() as $fact) {
1067			if ($fact->getTag() === $tag) {
1068				return $fact;
1069			}
1070		}
1071
1072		return null;
1073	}
1074
1075	/**
1076	 * The facts and events for this record.
1077	 *
1078	 * @param string    $filter
1079	 * @param bool      $sort
1080	 * @param int|null  $access_level
1081	 * @param bool      $override     Include private records, to allow us to implement $SHOW_PRIVATE_RELATIONSHIPS and $SHOW_LIVING_NAMES.
1082	 *
1083	 * @return Fact[]
1084	 */
1085	public function getFacts($filter = null, $sort = false, $access_level = null, $override = false) {
1086		if ($access_level === null) {
1087			$access_level = Auth::accessLevel($this->tree);
1088		}
1089
1090			$facts = [];
1091		if ($this->canShow($access_level) || $override) {
1092			foreach ($this->facts as $fact) {
1093				if (($filter === null || preg_match('/^' . $filter . '$/', $fact->getTag())) && $fact->canShow($access_level)) {
1094					$facts[] = $fact;
1095				}
1096			}
1097		}
1098		if ($sort) {
1099			Functions::sortFacts($facts);
1100		}
1101
1102		return $facts;
1103	}
1104
1105	/**
1106	 * Get the last-change timestamp for this record, either as a formatted string
1107	 * (for display) or as a unix timestamp (for sorting)
1108	 *
1109	 * @param bool $sorting
1110	 *
1111	 * @return string
1112	 */
1113	public function lastChangeTimestamp($sorting = false) {
1114		$chan = $this->getFirstFact('CHAN');
1115
1116		if ($chan) {
1117			// The record does have a CHAN event
1118			$d = $chan->getDate()->minimumDate();
1119			if (preg_match('/\n3 TIME (\d\d):(\d\d):(\d\d)/', $chan->getGedcom(), $match)) {
1120				$t = mktime((int) $match[1], (int) $match[2], (int) $match[3], (int) $d->format('%n'), (int) $d->format('%j'), (int) $d->format('%Y'));
1121			} elseif (preg_match('/\n3 TIME (\d\d):(\d\d)/', $chan->getGedcom(), $match)) {
1122				$t = mktime((int) $match[1], (int) $match[2], 0, (int) $d->format('%n'), (int) $d->format('%j'), (int) $d->format('%Y'));
1123			} else {
1124				$t = mktime(0, 0, 0, (int) $d->format('%n'), (int) $d->format('%j'), (int) $d->format('%Y'));
1125			}
1126			if ($sorting) {
1127				return $t;
1128			} else {
1129				return strip_tags(FunctionsDate::formatTimestamp($t));
1130			}
1131		} else {
1132			// The record does not have a CHAN event
1133			if ($sorting) {
1134				return '0';
1135			} else {
1136				return '';
1137			}
1138		}
1139	}
1140
1141	/**
1142	 * Get the last-change user for this record
1143	 *
1144	 * @return string
1145	 */
1146	public function lastChangeUser() {
1147		$chan = $this->getFirstFact('CHAN');
1148
1149		if ($chan === null) {
1150			return I18N::translate('Unknown');
1151		} else {
1152			$chan_user = $chan->getAttribute('_WT_USER');
1153			if ($chan_user === '') {
1154				return I18N::translate('Unknown');
1155			} else {
1156				return $chan_user;
1157			}
1158		}
1159	}
1160
1161	/**
1162	 * Add a new fact to this record
1163	 *
1164	 * @param string $gedcom
1165	 * @param bool   $update_chan
1166	 */
1167	public function createFact($gedcom, $update_chan) {
1168		$this->updateFact(null, $gedcom, $update_chan);
1169	}
1170
1171	/**
1172	 * Delete a fact from this record
1173	 *
1174	 * @param string $fact_id
1175	 * @param bool   $update_chan
1176	 */
1177	public function deleteFact($fact_id, $update_chan) {
1178		$this->updateFact($fact_id, null, $update_chan);
1179	}
1180
1181	/**
1182	 * Replace a fact with a new gedcom data.
1183	 *
1184	 * @param string $fact_id
1185	 * @param string $gedcom
1186	 * @param bool   $update_chan
1187	 *
1188	 * @throws \Exception
1189	 */
1190	public function updateFact($fact_id, $gedcom, $update_chan) {
1191		// MSDOS line endings will break things in horrible ways
1192		$gedcom = preg_replace('/[\r\n]+/', "\n", $gedcom);
1193		$gedcom = trim($gedcom);
1194
1195		if ($this->pending === '') {
1196			throw new \Exception('Cannot edit a deleted record');
1197		}
1198		if ($gedcom && !preg_match('/^1 ' . WT_REGEX_TAG . '/', $gedcom)) {
1199			throw new \Exception('Invalid GEDCOM data passed to GedcomRecord::updateFact(' . $gedcom . ')');
1200		}
1201
1202		if ($this->pending) {
1203			$old_gedcom = $this->pending;
1204		} else {
1205			$old_gedcom = $this->gedcom;
1206		}
1207
1208		// First line of record may contain data - e.g. NOTE records.
1209		list($new_gedcom) = explode("\n", $old_gedcom, 2);
1210
1211		// Replacing (or deleting) an existing fact
1212		foreach ($this->getFacts(null, false, Auth::PRIV_HIDE) as $fact) {
1213			if (!$fact->isPendingDeletion()) {
1214				if ($fact->getFactId() === $fact_id) {
1215					if ($gedcom) {
1216						$new_gedcom .= "\n" . $gedcom;
1217					}
1218					$fact_id = true; // Only replace/delete one copy of a duplicate fact
1219				} elseif ($fact->getTag() != 'CHAN' || !$update_chan) {
1220					$new_gedcom .= "\n" . $fact->getGedcom();
1221				}
1222			}
1223		}
1224		if ($update_chan) {
1225			$new_gedcom .= "\n1 CHAN\n2 DATE " . strtoupper(date('d M Y')) . "\n3 TIME " . date('H:i:s') . "\n2 _WT_USER " . Auth::user()->getUserName();
1226		}
1227
1228		// Adding a new fact
1229		if (!$fact_id) {
1230			$new_gedcom .= "\n" . $gedcom;
1231		}
1232
1233		if ($new_gedcom != $old_gedcom) {
1234			// Save the changes
1235			Database::prepare(
1236				"INSERT INTO `##change` (gedcom_id, xref, old_gedcom, new_gedcom, user_id) VALUES (?, ?, ?, ?, ?)"
1237			)->execute([
1238				$this->tree->getTreeId(),
1239				$this->xref,
1240				$old_gedcom,
1241				$new_gedcom,
1242				Auth::id(),
1243			]);
1244
1245			$this->pending = $new_gedcom;
1246
1247			if (Auth::user()->getPreference('auto_accept')) {
1248				FunctionsImport::acceptAllChanges($this->xref, $this->tree->getTreeId());
1249				$this->gedcom  = $new_gedcom;
1250				$this->pending = null;
1251			}
1252		}
1253		$this->parseFacts();
1254	}
1255
1256	/**
1257	 * Update this record
1258	 *
1259	 * @param string $gedcom
1260	 * @param bool   $update_chan
1261	 */
1262	public function updateRecord($gedcom, $update_chan) {
1263		// MSDOS line endings will break things in horrible ways
1264		$gedcom = preg_replace('/[\r\n]+/', "\n", $gedcom);
1265		$gedcom = trim($gedcom);
1266
1267		// Update the CHAN record
1268		if ($update_chan) {
1269			$gedcom = preg_replace('/\n1 CHAN(\n[2-9].*)*/', '', $gedcom);
1270			$gedcom .= "\n1 CHAN\n2 DATE " . date('d M Y') . "\n3 TIME " . date('H:i:s') . "\n2 _WT_USER " . Auth::user()->getUserName();
1271		}
1272
1273		// Create a pending change
1274		Database::prepare(
1275			"INSERT INTO `##change` (gedcom_id, xref, old_gedcom, new_gedcom, user_id) VALUES (?, ?, ?, ?, ?)"
1276		)->execute([
1277			$this->tree->getTreeId(),
1278			$this->xref,
1279			$this->getGedcom(),
1280			$gedcom,
1281			Auth::id(),
1282		]);
1283
1284		// Clear the cache
1285		$this->pending = $gedcom;
1286
1287		// Accept this pending change
1288		if (Auth::user()->getPreference('auto_accept')) {
1289			FunctionsImport::acceptAllChanges($this->xref, $this->tree->getTreeId());
1290			$this->gedcom  = $gedcom;
1291			$this->pending = null;
1292		}
1293
1294		$this->parseFacts();
1295
1296		Log::addEditLog('Update: ' . static::RECORD_TYPE . ' ' . $this->xref);
1297	}
1298
1299	/**
1300	 * Delete this record
1301	 */
1302	public function deleteRecord() {
1303		// Create a pending change
1304		if (!$this->isPendingDeletion()) {
1305			Database::prepare(
1306				"INSERT INTO `##change` (gedcom_id, xref, old_gedcom, new_gedcom, user_id) VALUES (?, ?, ?, '', ?)"
1307			)->execute([
1308				$this->tree->getTreeId(),
1309				$this->xref,
1310				$this->getGedcom(),
1311				Auth::id(),
1312			]);
1313		}
1314
1315		// Auto-accept this pending change
1316		if (Auth::user()->getPreference('auto_accept')) {
1317			FunctionsImport::acceptAllChanges($this->xref, $this->tree->getTreeId());
1318		}
1319
1320		// Clear the cache
1321		self::$gedcom_record_cache  = null;
1322		self::$pending_record_cache = null;
1323
1324		Log::addEditLog('Delete: ' . static::RECORD_TYPE . ' ' . $this->xref);
1325	}
1326
1327	/**
1328	 * Remove all links from this record to $xref
1329	 *
1330	 * @param string $xref
1331	 * @param bool   $update_chan
1332	 */
1333	public function removeLinks($xref, $update_chan) {
1334		$value = '@' . $xref . '@';
1335
1336		foreach ($this->getFacts() as $fact) {
1337			if ($fact->getValue() === $value) {
1338				$this->deleteFact($fact->getFactId(), $update_chan);
1339			} elseif (preg_match_all('/\n(\d) ' . WT_REGEX_TAG . ' ' . $value . '/', $fact->getGedcom(), $matches, PREG_SET_ORDER)) {
1340				$gedcom = $fact->getGedcom();
1341				foreach ($matches as $match) {
1342					$next_level  = $match[1] + 1;
1343					$next_levels = '[' . $next_level . '-9]';
1344					$gedcom      = preg_replace('/' . $match[0] . '(\n' . $next_levels . '.*)*/', '', $gedcom);
1345				}
1346				$this->updateFact($fact->getFactId(), $gedcom, $update_chan);
1347			}
1348		}
1349	}
1350}
1351