xref: /webtrees/app/Services/SearchService.php (revision c5e5c1cea5f7d35d6fd56eb77c9a68e91d21befe)
1<?php
2/**
3 * webtrees: online genealogy
4 * Copyright (C) 2019 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 */
16declare(strict_types=1);
17
18namespace Fisharebest\Webtrees\Services;
19
20use Closure;
21use Fisharebest\Webtrees\Date;
22use Fisharebest\Webtrees\Exceptions\InternalServerErrorException;
23use Fisharebest\Webtrees\Family;
24use Fisharebest\Webtrees\Gedcom;
25use Fisharebest\Webtrees\GedcomRecord;
26use Fisharebest\Webtrees\I18N;
27use Fisharebest\Webtrees\Individual;
28use Fisharebest\Webtrees\Media;
29use Fisharebest\Webtrees\Note;
30use Fisharebest\Webtrees\Place;
31use Fisharebest\Webtrees\Repository;
32use Fisharebest\Webtrees\Soundex;
33use Fisharebest\Webtrees\Source;
34use Fisharebest\Webtrees\Tree;
35use Illuminate\Database\Capsule\Manager as DB;
36use Illuminate\Database\Query\Builder;
37use Illuminate\Database\Query\Expression;
38use Illuminate\Database\Query\JoinClause;
39use Illuminate\Support\Collection;
40use stdClass;
41use function mb_stripos;
42
43/**
44 * Search trees for genealogy records.
45 */
46class SearchService
47{
48    /**
49     * @param Tree[]   $trees
50     * @param string[] $search
51     *
52     * @return Collection|Family[]
53     */
54    public function searchFamilies(array $trees, array $search): Collection
55    {
56        $query = DB::table('families');
57
58        $this->whereTrees($query, 'f_file', $trees);
59        $this->whereSearch($query, 'f_gedcom', $search);
60
61        return $query
62            ->get()
63            ->each($this->rowLimiter())
64            ->map(Family::rowMapper())
65            ->filter(GedcomRecord::accessFilter())
66            ->filter($this->rawGedcomFilter($search));
67    }
68
69    /**
70     * Search for families by name.
71     *
72     * @param Tree[]   $trees
73     * @param string[] $search
74     * @param int      $offset
75     * @param int      $limit
76     *
77     * @return Collection|Family[]
78     */
79    public function searchFamilyNames(array $trees, array $search, int $offset = 0, int $limit = PHP_INT_MAX): Collection
80    {
81        $query = DB::table('families')
82            ->join('name AS husb_name', function (JoinClause $join): void {
83                $join
84                    ->on('husb_name.n_file', '=', 'families.f_file')
85                    ->on('husb_name.n_id', '=', 'families.f_husb');
86            })
87            ->join('name AS wife_name', function (JoinClause $join): void {
88                $join
89                    ->on('wife_name.n_file', '=', 'families.f_file')
90                    ->on('wife_name.n_id', '=', 'families.f_wife');
91            })
92            ->where('wife_name.n_type', '<>', '_MARNM')
93            ->where('husb_name.n_type', '<>', '_MARNM');
94
95        $prefix = DB::connection()->getTablePrefix();
96        $field  = DB::raw($prefix . 'husb_name.n_full || ' . $prefix . 'wife_name.n_full');
97
98        $this->whereTrees($query, 'f_file', $trees);
99        $this->whereSearch($query, $field, $search);
100
101        $query
102            ->orderBy('husb_name.n_sort')
103            ->orderBy('wife_name.n_sort')
104            ->select(['families.*', 'husb_name.n_sort', 'wife_name.n_sort'])
105            ->distinct();
106
107        return $this->paginateQuery($query, Family::rowMapper(), GedcomRecord::accessFilter(), $offset, $limit);
108    }
109
110    /**
111     * @param Tree[]   $trees
112     * @param string[] $search
113     *
114     * @return Collection|Individual[]
115     */
116    public function searchIndividuals(array $trees, array $search): Collection
117    {
118        $query = DB::table('individuals');
119
120        $this->whereTrees($query, 'i_file', $trees);
121        $this->whereSearch($query, 'i_gedcom', $search);
122
123        return $query
124            ->get()
125            ->each($this->rowLimiter())
126            ->map(Individual::rowMapper())
127            ->filter(GedcomRecord::accessFilter())
128            ->filter($this->rawGedcomFilter($search));
129    }
130
131    /**
132     * Search for individuals by name.
133     *
134     * @param Tree[]   $trees
135     * @param string[] $search
136     * @param int      $offset
137     * @param int      $limit
138     *
139     * @return Collection|Individual[]
140     */
141    public function searchIndividualNames(array $trees, array $search, int $offset = 0, int $limit = PHP_INT_MAX): Collection
142    {
143        $query = DB::table('individuals')
144            ->join('name', function (JoinClause $join): void {
145                $join
146                    ->on('name.n_file', '=', 'individuals.i_file')
147                    ->on('name.n_id', '=', 'individuals.i_id');
148            })
149            ->orderBy('n_sort')
150            ->select(['individuals.*', 'n_sort', 'n_num'])
151            ->distinct();
152
153        $this->whereTrees($query, 'i_file', $trees);
154        $this->whereSearch($query, 'n_full', $search);
155
156        return $this->paginateQuery($query, Individual::rowMapper(), GedcomRecord::accessFilter(), $offset, $limit);
157    }
158
159    /**
160     * Search for media objects.
161     *
162     * @param Tree[]   $trees
163     * @param string[] $search
164     * @param int      $offset
165     * @param int      $limit
166     *
167     * @return Collection|Media[]
168     */
169    public function searchMedia(array $trees, array $search, int $offset = 0, int $limit = PHP_INT_MAX): Collection
170    {
171        $query = DB::table('media');
172
173        $this->whereTrees($query, 'media.m_file', $trees);
174        $this->whereSearch($query, 'm_gedcom', $search);
175
176        return $this->paginateQuery($query, Media::rowMapper(), GedcomRecord::accessFilter(), $offset, $limit);
177    }
178
179    /**
180     * Search for notes.
181     *
182     * @param Tree[]   $trees
183     * @param string[] $search
184     * @param int      $offset
185     * @param int      $limit
186     *
187     * @return Collection|Note[]
188     */
189    public function searchNotes(array $trees, array $search, int $offset = 0, int $limit = PHP_INT_MAX): Collection
190    {
191        $query = DB::table('other')
192            ->where('o_type', '=', 'NOTE');
193
194        $this->whereTrees($query, 'o_file', $trees);
195        $this->whereSearch($query, 'o_gedcom', $search);
196
197        return $this->paginateQuery($query, Note::rowMapper(), GedcomRecord::accessFilter(), $offset, $limit);
198    }
199
200    /**
201     * Search for repositories.
202     *
203     * @param Tree[]   $trees
204     * @param string[] $search
205     * @param int      $offset
206     * @param int      $limit
207     *
208     * @return Collection|Repository[]
209     */
210    public function searchRepositories(array $trees, array $search, int $offset = 0, int $limit = PHP_INT_MAX): Collection
211    {
212        $query = DB::table('other')
213            ->where('o_type', '=', 'REPO');
214
215        $this->whereTrees($query, 'o_file', $trees);
216        $this->whereSearch($query, 'o_gedcom', $search);
217
218        return $this->paginateQuery($query, Repository::rowMapper(), GedcomRecord::accessFilter(), $offset, $limit);
219    }
220
221    /**
222     * Search for sources.
223     *
224     * @param Tree[]   $trees
225     * @param string[] $search
226     * @param int      $offset
227     * @param int      $limit
228     *
229     * @return Collection|Source[]
230     */
231    public function searchSources(array $trees, array $search, int $offset = 0, int $limit = PHP_INT_MAX): Collection
232    {
233        $query = DB::table('sources');
234
235        $this->whereTrees($query, 's_file', $trees);
236        $this->whereSearch($query, 's_gedcom', $search);
237
238        return $this->paginateQuery($query, Source::rowMapper(), GedcomRecord::accessFilter(), $offset, $limit);
239    }
240
241    /**
242     * Search for sources by name.
243     *
244     * @param Tree[]   $trees
245     * @param string[] $search
246     * @param int      $offset
247     * @param int      $limit
248     *
249     * @return Collection|Source[]
250     */
251    public function searchSourcesByName(array $trees, array $search, int $offset = 0, int $limit = PHP_INT_MAX): Collection
252    {
253        $query = DB::table('sources')
254            ->orderBy('s_name');
255
256        $this->whereTrees($query, 's_file', $trees);
257        $this->whereSearch($query, 's_name', $search);
258
259        return $this->paginateQuery($query, Source::rowMapper(), GedcomRecord::accessFilter(), $offset, $limit);
260    }
261
262    /**
263     * Search for submitters.
264     *
265     * @param Tree[]   $trees
266     * @param string[] $search
267     * @param int      $offset
268     * @param int      $limit
269     *
270     * @return Collection|GedcomRecord[]
271     */
272    public function searchSubmitters(array $trees, array $search, int $offset = 0, int $limit = PHP_INT_MAX): Collection
273    {
274        $query = DB::table('other')
275            ->where('o_type', '=', 'SUBM');
276
277        $this->whereTrees($query, 'o_file', $trees);
278        $this->whereSearch($query, 'o_gedcom', $search);
279
280        return $this->paginateQuery($query, GedcomRecord::rowMapper(), GedcomRecord::accessFilter(), $offset, $limit);
281    }
282
283    /**
284     * Search for places.
285     *
286     * @param Tree   $tree
287     * @param string $search
288     * @param int    $offset
289     * @param int    $limit
290     *
291     * @return Collection|Place[]
292     */
293    public function searchPlaces(Tree $tree, string $search, int $offset = 0, int $limit = PHP_INT_MAX): Collection
294    {
295        $query = DB::table('places AS p0')
296            ->where('p0.p_file', '=', $tree->id())
297            ->leftJoin('places AS p1', 'p1.p_id', '=', 'p0.p_parent_id')
298            ->leftJoin('places AS p2', 'p2.p_id', '=', 'p1.p_parent_id')
299            ->leftJoin('places AS p3', 'p3.p_id', '=', 'p2.p_parent_id')
300            ->leftJoin('places AS p4', 'p4.p_id', '=', 'p3.p_parent_id')
301            ->leftJoin('places AS p5', 'p5.p_id', '=', 'p4.p_parent_id')
302            ->leftJoin('places AS p6', 'p6.p_id', '=', 'p5.p_parent_id')
303            ->leftJoin('places AS p7', 'p7.p_id', '=', 'p6.p_parent_id')
304            ->leftJoin('places AS p8', 'p8.p_id', '=', 'p7.p_parent_id')
305            ->orderBy('p0.p_place')
306            ->orderBy('p1.p_place')
307            ->orderBy('p2.p_place')
308            ->orderBy('p3.p_place')
309            ->orderBy('p4.p_place')
310            ->orderBy('p5.p_place')
311            ->orderBy('p6.p_place')
312            ->orderBy('p7.p_place')
313            ->orderBy('p8.p_place')
314            ->select([
315                'p0.p_place AS place0',
316                'p1.p_place AS place1',
317                'p2.p_place AS place2',
318                'p3.p_place AS place3',
319                'p4.p_place AS place4',
320                'p5.p_place AS place5',
321                'p6.p_place AS place6',
322                'p7.p_place AS place7',
323                'p8.p_place AS place8',
324            ]);
325
326        // Filter each level of the hierarchy.
327        foreach (explode(',', $search, 9) as $level => $string) {
328            $query->whereContains('p' . $level . '.p_place', $string);
329        }
330
331        $row_mapper = function (stdClass $row) use ($tree): Place {
332            $place = implode(', ', array_filter((array) $row));
333
334            return new Place($place, $tree);
335        };
336
337        $filter = function (): bool {
338            return true;
339        };
340
341        return $this->paginateQuery($query, $row_mapper, $filter, $offset, $limit);
342    }
343
344    /**
345     * @param Tree[]   $trees
346     * @param string[] $fields
347     * @param string[] $modifiers
348     *
349     * @return Collection|Individual[]
350     */
351    public function searchIndividualsAdvanced(array $trees, array $fields, array $modifiers): Collection
352    {
353        $fields = array_filter($fields);
354
355        $query = DB::table('individuals')
356            ->select(['individuals.*'])
357            ->distinct();
358
359        $this->whereTrees($query, 'i_file', $trees);
360
361        // Join the following tables
362        $father_name   = false;
363        $mother_name   = false;
364        $spouse_family = false;
365        $indi_name     = false;
366        $indi_date     = false;
367        $fam_date      = false;
368        $indi_plac     = false;
369        $fam_plac      = false;
370
371        foreach ($fields as $field_name => $field_value) {
372            if ($field_value !== '') {
373                if (substr($field_name, 0, 14) === 'FAMC:HUSB:NAME') {
374                    $father_name = true;
375                } elseif (substr($field_name, 0, 14) === 'FAMC:WIFE:NAME') {
376                    $mother_name = true;
377                } elseif (substr($field_name, 0, 4) === 'NAME') {
378                    $indi_name = true;
379                } elseif (strpos($field_name, ':DATE') !== false) {
380                    if (substr($field_name, 0, 4) === 'FAMS') {
381                        $fam_date      = true;
382                        $spouse_family = true;
383                    } else {
384                        $indi_date = true;
385                    }
386                } elseif (strpos($field_name, ':PLAC') !== false) {
387                    if (substr($field_name, 0, 4) === 'FAMS') {
388                        $fam_plac      = true;
389                        $spouse_family = true;
390                    } else {
391                        $indi_plac = true;
392                    }
393                } elseif ($field_name === 'FAMS:NOTE') {
394                    $spouse_family = true;
395                }
396            }
397        }
398
399        if ($father_name || $mother_name) {
400            $query->join('link AS l1', function (JoinClause $join): void {
401                $join
402                    ->on('l1.l_file', '=', 'individuals.i_file')
403                    ->on('l1.l_from', '=', 'individuals.i_id')
404                    ->where('l1.l_type', '=', 'FAMC');
405            });
406
407            if ($father_name) {
408                $query->join('link AS l2', function (JoinClause $join): void {
409                    $join
410                        ->on('l2.l_file', '=', 'l1.l_file')
411                        ->on('l2.l_from', '=', 'l1.l_to')
412                        ->where('l2.l_type', '=', 'HUSB');
413                });
414                $query->join('name AS father_name', function (JoinClause $join): void {
415                    $join
416                        ->on('father_name.n_file', '=', 'l2.l_file')
417                        ->on('father_name.n_id', '=', 'l2.l_to');
418                });
419            }
420
421            if ($mother_name) {
422                $query->join('link AS l3', function (JoinClause $join): void {
423                    $join
424                        ->on('l3.l_file', '=', 'l1.l_file')
425                        ->on('l3.l_from', '=', 'l1.l_to')
426                        ->where('l3.l_type', '=', 'WIFE');
427                });
428                $query->join('name AS mother_name', function (JoinClause $join): void {
429                    $join
430                        ->on('mother_name.n_file', '=', 'l3.l_file')
431                        ->on('mother_name.n_id', '=', 'l3.l_to');
432                });
433            }
434        }
435
436        if ($spouse_family) {
437            $query->join('link AS l4', function (JoinClause $join): void {
438                $join
439                    ->on('l4.l_file', '=', 'individuals.i_file')
440                    ->on('l4.l_from', '=', 'individuals.i_id')
441                    ->where('l4.l_type', '=', 'FAMS');
442            });
443            $query->join('families AS spouse_families', function (JoinClause $join): void {
444                $join
445                    ->on('spouse_families.f_file', '=', 'l4.l_file')
446                    ->on('spouse_families.f_id', '=', 'l4.l_to');
447            });
448        }
449
450        if ($indi_name) {
451            $query->join('name AS individual_name', function (JoinClause $join): void {
452                $join
453                    ->on('individual_name.n_file', '=', 'individuals.i_file')
454                    ->on('individual_name.n_id', '=', 'individuals.i_id');
455            });
456        }
457
458        if ($indi_date) {
459            $query->join('dates AS individual_dates', function (JoinClause $join): void {
460                $join
461                    ->on('individual_dates.d_file', '=', 'individuals.i_file')
462                    ->on('individual_dates.d_gid', '=', 'individuals.i_id');
463            });
464        }
465
466        if ($fam_date) {
467            $query->join('dates AS family_dates', function (JoinClause $join): void {
468                $join
469                    ->on('family_dates.d_file', '=', 'spouse_families.f_file')
470                    ->on('family_dates.d_gid', '=', 'spouse_families.f_id');
471            });
472        }
473
474        if ($indi_plac) {
475            $query->join('placelinks AS individual_placelinks', function (JoinClause $join): void {
476                $join
477                    ->on('individual_placelinks.pl_file', '=', 'individuals.i_file')
478                    ->on('individual_placelinks.pl_gid', '=', 'individuals.i_id');
479            });
480            $query->join('places AS individual_places', function (JoinClause $join): void {
481                $join
482                    ->on('individual_places.p_file', '=', 'individual_placelinks.pl_file')
483                    ->on('individual_places.p_id', '=', 'individual_placelinks.pl_p_id');
484            });
485        }
486
487        if ($fam_plac) {
488            $query->join('placelinks AS familyl_placelinks', function (JoinClause $join): void {
489                $join
490                    ->on('familyl_placelinks.pl_file', '=', 'individuals.i_file')
491                    ->on('familyl_placelinks.pl_gid', '=', 'individuals.i_id');
492            });
493            $query->join('places AS family_places', function (JoinClause $join): void {
494                $join
495                    ->on('family_places.p_file', '=', 'familyl_placelinks.pl_file')
496                    ->on('family_places.p_id', '=', 'familyl_placelinks.pl_p_id');
497            });
498        }
499
500        foreach ($fields as $field_name => $field_value) {
501            $parts = preg_split('/:/', $field_name . '::::');
502            if ($parts[0] === 'NAME') {
503                // NAME:*
504                switch ($parts[1]) {
505                    case 'GIVN':
506                        switch ($modifiers[$field_name]) {
507                            case 'EXACT':
508                                $query->where('individual_name.n_givn', '=', $field_value);
509                                break;
510                            case 'BEGINS':
511                                $query->where('individual_name.n_givn', 'LIKE', $field_value . '%');
512                                break;
513                            case 'CONTAINS':
514                                $query->where('individual_name.n_givn', 'LIKE', '%' . $field_value . '%');
515                                break;
516                            case 'SDX_STD':
517                                $sdx = Soundex::russell($field_value);
518                                if ($sdx !== '') {
519                                    $this->wherePhonetic($query, 'individual_name.n_soundex_givn_std', $sdx);
520                                } else {
521                                    // No phonetic content? Use a substring match
522                                    $query->where('individual_name.n_givn', 'LIKE', '%' . $field_value . '%');
523                                }
524                                break;
525                            case 'SDX': // SDX uses DM by default.
526                            case 'SDX_DM':
527                                $sdx = Soundex::daitchMokotoff($field_value);
528                                if ($sdx !== '') {
529                                    $this->wherePhonetic($query, 'individual_name.n_soundex_givn_dm', $sdx);
530                                } else {
531                                    // No phonetic content? Use a substring match
532                                    $query->where('individual_name.n_givn', 'LIKE', '%' . $field_value . '%');
533                                }
534                                break;
535                        }
536                        break;
537                    case 'SURN':
538                        switch ($modifiers[$field_name]) {
539                            case 'EXACT':
540                                $query->where('individual_name.n_surn', '=', $field_value);
541                                break;
542                            case 'BEGINS':
543                                $query->where('individual_name.n_surn', 'LIKE', $field_value . '%');
544                                break;
545                            case 'CONTAINS':
546                                $query->where('individual_name.n_surn', 'LIKE', '%' . $field_value . '%');
547                                break;
548                            case 'SDX_STD':
549                                $sdx = Soundex::russell($field_value);
550                                if ($sdx !== '') {
551                                    $this->wherePhonetic($query, 'individual_name.n_soundex_surn_std', $sdx);
552                                } else {
553                                    // No phonetic content? Use a substring match
554                                    $query->where('individual_name.n_surn', 'LIKE', '%' . $field_value . '%');
555                                }
556                                break;
557                            case 'SDX': // SDX uses DM by default.
558                            case 'SDX_DM':
559                                $sdx = Soundex::daitchMokotoff($field_value);
560                                if ($sdx !== '') {
561                                    $this->wherePhonetic($query, 'individual_name.n_soundex_surn_dm', $sdx);
562                                } else {
563                                    // No phonetic content? Use a substring match
564                                    $query->where('individual_name.n_surn', 'LIKE', '%' . $field_value . '%');
565                                }
566                                break;
567                        }
568                        break;
569                    case 'NICK':
570                    case '_MARNM':
571                    case '_HEB':
572                    case '_AKA':
573                        $query
574                            ->where('individual_name', '=', $parts[1])
575                            ->where('individual_name', 'LIKE', '%' . $field_value . '%');
576                        break;
577                }
578                unset($fields[$field_name]);
579            } elseif ($parts[1] === 'DATE') {
580                // *:DATE
581                $date = new Date($field_value);
582                if ($date->isOK()) {
583                    $delta = 365 * ($modifiers[$field_name] ?? 0);
584                    $query
585                        ->where('individual_dates.d_fact', '=', $parts[0])
586                        ->where('individual_dates.d_julianday1', '>=', $date->minimumJulianDay() - $delta)
587                        ->where('individual_dates.d_julianday2', '<=', $date->minimumJulianDay() + $delta);
588                }
589                unset($fields[$field_name]);
590            } elseif ($parts[0] === 'FAMS' && $parts[2] === 'DATE') {
591                // FAMS:*:DATE
592                $date = new Date($field_value);
593                if ($date->isOK()) {
594                    $delta = 365 * $modifiers[$field_name];
595                    $query
596                        ->where('family_dates.d_fact', '=', $parts[1])
597                        ->where('family_dates.d_julianday1', '>=', $date->minimumJulianDay() - $delta)
598                        ->where('family_dates.d_julianday2', '<=', $date->minimumJulianDay() + $delta);
599                }
600                unset($fields[$field_name]);
601            } elseif ($parts[1] === 'PLAC') {
602                // *:PLAC
603                // SQL can only link a place to a person/family, not to an event.
604                $query->where('individual_places.p_place', 'LIKE', '%' . $field_value . '%');
605            } elseif ($parts[0] === 'FAMS' && $parts[2] === 'PLAC') {
606                // FAMS:*:PLAC
607                // SQL can only link a place to a person/family, not to an event.
608                $query->where('family_places.p_place', 'LIKE', '%' . $field_value . '%');
609            } elseif ($parts[0] === 'FAMC' && $parts[2] === 'NAME') {
610                $table = $parts[1] === 'HUSB' ? 'father_name' : 'mother_name';
611                // NAME:*
612                switch ($parts[3]) {
613                    case 'GIVN':
614                        switch ($modifiers[$field_name]) {
615                            case 'EXACT':
616                                $query->where($table . '.n_givn', '=', $field_value);
617                                break;
618                            case 'BEGINS':
619                                $query->where($table . '.n_givn', 'LIKE', $field_value . '%');
620                                break;
621                            case 'CONTAINS':
622                                $query->where($table . '.n_givn', 'LIKE', '%' . $field_value . '%');
623                                break;
624                            case 'SDX_STD':
625                                $sdx = Soundex::russell($field_value);
626                                if ($sdx !== '') {
627                                    $this->wherePhonetic($query, $table . '.n_soundex_givn_std', $sdx);
628                                } else {
629                                    // No phonetic content? Use a substring match
630                                    $query->where($table . '.n_givn', 'LIKE', '%' . $field_value . '%');
631                                }
632                                break;
633                            case 'SDX': // SDX uses DM by default.
634                            case 'SDX_DM':
635                                $sdx = Soundex::daitchMokotoff($field_value);
636                                if ($sdx !== '') {
637                                    $this->wherePhonetic($query, $table . '.n_soundex_givn_dm', $sdx);
638                                } else {
639                                    // No phonetic content? Use a substring match
640                                    $query->where($table . '.n_givn', 'LIKE', '%' . $field_value . '%');
641                                }
642                                break;
643                        }
644                        break;
645                    case 'SURN':
646                        switch ($modifiers[$field_name]) {
647                            case 'EXACT':
648                                $query->where($table . '.n_surn', '=', $field_value);
649                                break;
650                            case 'BEGINS':
651                                $query->where($table . '.n_surn', 'LIKE', $field_value . '%');
652                                break;
653                            case 'CONTAINS':
654                                $query->where($table . '.n_surn', 'LIKE', '%' . $field_value . '%');
655                                break;
656                            case 'SDX_STD':
657                                $sdx = Soundex::russell($field_value);
658                                if ($sdx !== '') {
659                                    $this->wherePhonetic($query, $table . '.n_soundex_surn_std', $sdx);
660                                } else {
661                                    // No phonetic content? Use a substring match
662                                    $query->where($table . '.n_surn', 'LIKE', '%' . $field_value . '%');
663                                }
664                                break;
665                            case 'SDX': // SDX uses DM by default.
666                            case 'SDX_DM':
667                                $sdx = Soundex::daitchMokotoff($field_value);
668                                if ($sdx !== '') {
669                                    $this->wherePhonetic($query, $table . '.n_soundex_surn_dm', $sdx);
670                                } else {
671                                    // No phonetic content? Use a substring match
672                                    $query->where($table . '.n_surn', 'LIKE', '%' . $field_value . '%');
673                                }
674                                break;
675                        }
676                        break;
677                }
678                unset($fields[$field_name]);
679            } elseif ($parts[0] === 'FAMS') {
680                // e.g. searches for occupation, religion, note, etc.
681                // Initial matching only.  Need PHP to apply filter.
682                $query->where('families.f_gedcom', 'LIKE', "%\n1 " . $parts[1] . ' %' . $field_value . '%');
683            } elseif ($parts[1] === 'TYPE') {
684                // e.g. FACT:TYPE or EVEN:TYPE
685                // Initial matching only.  Need PHP to apply filter.
686                $query->where('individuals.i_gedcom', 'LIKE', "%\n1 " . $parts[0] . '%\n2 TYPE %' . $field_value . '%');
687            } else {
688                // e.g. searches for occupation, religion, note, etc.
689                // Initial matching only.  Need PHP to apply filter.
690                $query->where('individuals.i_gedcom', 'LIKE', "%\n1 " . $parts[0] . ' %' . $field_value . '%');
691            }
692        }
693
694        return $query
695            ->get()
696            ->each($this->rowLimiter())
697            ->map(Individual::rowMapper())
698            ->filter(GedcomRecord::accessFilter())
699            ->filter(function (Individual $individual) use ($fields): bool {
700                // Check for XXXX:PLAC fields, which were only partially matched by SQL
701                foreach ($fields as $field_name => $field_value) {
702                    $regex = '/' . preg_quote($field_value, '/') . '/i';
703
704                    $parts = preg_split('/:/', $field_name . '::::');
705
706                    if ($parts[1] === 'PLAC') {
707                        // *:PLAC
708                        foreach ($individual->facts([$parts[0]]) as $fact) {
709                            if (preg_match($regex, $fact->place()->gedcomName())) {
710                                return true;
711                            }
712                        }
713                    } elseif ($parts[0] === 'FAMS' && $parts[2] === 'PLAC') {
714                        // FAMS:*:PLAC
715                        foreach ($individual->spouseFamilies() as $family) {
716                            foreach ($family->facts([$parts[1]]) as $fact) {
717                                if (preg_match($regex, $fact->place()->gedcomName())) {
718                                    return true;
719                                }
720                            }
721                        }
722                    } elseif ($parts[0] === 'FAMS') {
723                        // e.g. searches for occupation, religion, note, etc.
724                        foreach ($individual->spouseFamilies() as $family) {
725                            foreach ($family->facts([$parts[1]]) as $fact) {
726                                if (preg_match($regex, $fact->value())) {
727                                    return true;
728                                }
729                            }
730                        }
731                    } elseif ($parts[1] === 'TYPE') {
732                        // e.g. FACT:TYPE or EVEN:TYPE
733                        foreach ($individual->facts([$parts[0]]) as $fact) {
734                            if (preg_match($regex, $fact->attribute('TYPE'))) {
735                                return true;
736                            }
737                        }
738                    } else {
739                        // e.g. searches for occupation, religion, note, etc.
740                        foreach ($individual->facts([$parts[0]]) as $fact) {
741                            if (preg_match($regex, $fact->value())) {
742                                return true;
743                            }
744                        }
745                    }
746
747                    // No match
748                    return false;
749                }
750
751                return true;
752            });
753    }
754
755    /**
756     * @param string $soundex
757     * @param string $lastname
758     * @param string $firstname
759     * @param string $place
760     * @param Tree[] $search_trees
761     *
762     * @return Collection|Individual[]
763     */
764    public function searchIndividualsPhonetic(string $soundex, string $lastname, string $firstname, string $place, array $search_trees): Collection
765    {
766        switch ($soundex) {
767            default:
768            case 'Russell':
769                $givn_sdx   = Soundex::russell($firstname);
770                $surn_sdx   = Soundex::russell($lastname);
771                $plac_sdx   = Soundex::russell($place);
772                $givn_field = 'n_soundex_givn_std';
773                $surn_field = 'n_soundex_surn_std';
774                $plac_field = 'p_std_soundex';
775                break;
776            case 'DaitchM':
777                $givn_sdx   = Soundex::daitchMokotoff($firstname);
778                $surn_sdx   = Soundex::daitchMokotoff($lastname);
779                $plac_sdx   = Soundex::daitchMokotoff($place);
780                $givn_field = 'n_soundex_givn_dm';
781                $surn_field = 'n_soundex_surn_dm';
782                $plac_field = 'p_dm_soundex';
783                break;
784        }
785
786        // Nothing to search for? Return nothing.
787        if ($givn_sdx === '' && $surn_sdx === '' && $plac_sdx === '') {
788            return new Collection();
789        }
790
791        $query = DB::table('individuals')
792            ->select(['individuals.*'])
793            ->distinct();
794
795        $this->whereTrees($query, 'i_file', $search_trees);
796
797        if ($plac_sdx !== '') {
798            $query->join('placelinks', function (JoinClause $join): void {
799                $join
800                    ->on('placelinks.pl_file', '=', 'individuals.i_file')
801                    ->on('placelinks.pl_gid', '=', 'individuals.i_id');
802            });
803            $query->join('places', function (JoinClause $join): void {
804                $join
805                    ->on('places.p_file', '=', 'placelinks.pl_file')
806                    ->on('places.p_id', '=', 'placelinks.pl_p_id');
807            });
808
809            $this->wherePhonetic($query, $plac_field, $plac_sdx);
810        }
811
812        if ($givn_sdx !== '' || $surn_sdx !== '') {
813            $query->join('name', function (JoinClause $join): void {
814                $join
815                    ->on('name.n_file', '=', 'individuals.i_file')
816                    ->on('name.n_id', '=', 'individuals.i_id');
817            });
818
819            $this->wherePhonetic($query, $givn_field, $givn_sdx);
820            $this->wherePhonetic($query, $surn_field, $surn_sdx);
821        }
822
823        return $query
824            ->get()
825            ->each($this->rowLimiter())
826            ->map(Individual::rowMapper())
827            ->filter(GedcomRecord::accessFilter());
828    }
829
830    /**
831     * Paginate a search query.
832     *
833     * @param Builder $query      Searches the database for the desired records.
834     * @param Closure $row_mapper Converts a row from the query into a record.
835     * @param Closure $row_filter
836     * @param int     $offset     Skip this many rows.
837     * @param int     $limit      Take this many rows.
838     *
839     * @return Collection
840     */
841    private function paginateQuery(Builder $query, Closure $row_mapper, Closure $row_filter, int $offset, int $limit): Collection
842    {
843        $collection = new Collection();
844
845        foreach ($query->cursor() as $row) {
846            $record = $row_mapper($row);
847            // If the object has a method "canShow()", then use it to filter for privacy.
848            if ($row_filter($record)) {
849                if ($offset > 0) {
850                    $offset--;
851                } else {
852                    if ($limit > 0) {
853                        $collection->push($record);
854                    }
855
856                    $limit--;
857
858                    if ($limit === 0) {
859                        break;
860                    }
861                }
862            }
863        }
864
865        return $collection;
866    }
867
868    /**
869     * Apply search filters to a SQL query column.  Apply collation rules to MySQL.
870     *
871     * @param Builder           $query
872     * @param Expression|string $field
873     * @param string[]          $search_terms
874     */
875    private function whereSearch(Builder $query, $field, array $search_terms): void
876    {
877        if ($field instanceof Expression) {
878            $field = $field->getValue();
879        }
880
881        foreach ($search_terms as $search_term) {
882            $query->whereContains(DB::raw($field), $search_term);
883        }
884    }
885
886    /**
887     * Apply soundex search filters to a SQL query column.
888     *
889     * @param Builder           $query
890     * @param Expression|string $field
891     * @param string            $soundex
892     */
893    private function wherePhonetic(Builder $query, $field, string $soundex): void
894    {
895        if ($soundex !== '') {
896            $query->where(function (Builder $query) use ($soundex, $field): void {
897                foreach (explode(':', $soundex) as $sdx) {
898                    $query->orWhere($field, 'LIKE', '%' . $sdx . '%');
899                }
900            });
901        }
902    }
903
904    /**
905     * @param Builder $query
906     * @param string  $tree_id_field
907     * @param Tree[]  $trees
908     */
909    private function whereTrees(Builder $query, string $tree_id_field, array $trees): void
910    {
911        $tree_ids = array_map(function (Tree $tree) {
912            return $tree->id();
913        }, $trees);
914
915        $query->whereIn($tree_id_field, $tree_ids);
916    }
917
918    /**
919     * A closure to filter records by privacy-filtered GEDCOM data.
920     *
921     * @param array $search_terms
922     *
923     * @return Closure
924     */
925    private function rawGedcomFilter(array $search_terms): Closure
926    {
927        return function (GedcomRecord $record) use ($search_terms): bool {
928            // Ignore non-genealogy fields
929            $gedcom = preg_replace('/\n\d (?:_UID) .*/', '', $record->gedcom());
930
931            // Ignore matches in links
932            $gedcom = preg_replace('/\n\d ' . Gedcom::REGEX_TAG . '( @' . Gedcom::REGEX_XREF . '@)?/', '', $gedcom);
933
934            // Re-apply the filtering
935            foreach ($search_terms as $search_term) {
936                if (mb_stripos($gedcom, $search_term) === false) {
937                    return false;
938                }
939            }
940
941            return true;
942        };
943    }
944
945    /**
946     * Searching for short or common text can give more results than the system can process.
947     *
948     * @param int $limit
949     *
950     * @return Closure
951     */
952    private function rowLimiter(int $limit = 1000): Closure
953    {
954        return function () use ($limit) {
955            static $n = 0;
956
957            if (++$n > $limit) {
958                $message = I18N::translate('The search returned too many results.');
959
960                throw new InternalServerErrorException($message);
961            }
962        };
963    }
964}
965