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19b53e5b C |
1 | <?php |
2 | /* | |
3 | +--------------------------------------------------------------------+ | |
41498ac5 | 4 | | Copyright CiviCRM LLC. All rights reserved. | |
19b53e5b | 5 | | | |
41498ac5 TO |
6 | | This work is published under the GNU AGPLv3 license with some | |
7 | | permitted exceptions and without any warranty. For full license | | |
8 | | and copyright information, see https://civicrm.org/licensing | | |
19b53e5b C |
9 | +--------------------------------------------------------------------+ |
10 | */ | |
11 | ||
12 | namespace Civi\Api4\Query; | |
13 | ||
14 | use Civi\API\SelectQuery; | |
15 | use Civi\Api4\Event\Events; | |
16 | use Civi\Api4\Event\PostSelectQueryEvent; | |
17 | use Civi\Api4\Service\Schema\Joinable\CustomGroupJoinable; | |
18 | use Civi\Api4\Service\Schema\Joinable\Joinable; | |
19 | use Civi\Api4\Utils\FormattingUtil; | |
20 | use Civi\Api4\Utils\CoreUtil; | |
39e0f675 | 21 | use Civi\Api4\Utils\SelectUtil; |
19b53e5b C |
22 | use CRM_Core_DAO_AllCoreTables as AllCoreTables; |
23 | use CRM_Utils_Array as UtilsArray; | |
24 | ||
25 | /** | |
26 | * A query `node` may be in one of three formats: | |
27 | * | |
28 | * * leaf: [$fieldName, $operator, $criteria] | |
29 | * * negated: ['NOT', $node] | |
30 | * * branch: ['OR|NOT', [$node, $node, ...]] | |
31 | * | |
32 | * Leaf operators are one of: | |
33 | * | |
34 | * * '=', '<=', '>=', '>', '<', 'LIKE', "<>", "!=", | |
35 | * * "NOT LIKE", 'IN', 'NOT IN', 'BETWEEN', 'NOT BETWEEN', | |
36 | * * 'IS NOT NULL', or 'IS NULL'. | |
37 | */ | |
38 | class Api4SelectQuery extends SelectQuery { | |
39 | ||
40 | /** | |
41 | * @var int | |
42 | */ | |
43 | protected $apiVersion = 4; | |
44 | ||
45 | /** | |
46 | * @var array | |
47 | * Maps select fields to [<table_alias>, <column_alias>] | |
48 | */ | |
49 | protected $fkSelectAliases = []; | |
50 | ||
51 | /** | |
52 | * @var \Civi\Api4\Service\Schema\Joinable\Joinable[] | |
53 | * The joinable tables that have been joined so far | |
54 | */ | |
55 | protected $joinedTables = []; | |
56 | ||
b65fa6dc CW |
57 | /** |
58 | * If set to an array, this will start collecting debug info. | |
59 | * | |
60 | * @var null|array | |
61 | */ | |
62 | public $debugOutput = NULL; | |
63 | ||
19b53e5b | 64 | /** |
3c7c8fa6 CW |
65 | * @param \Civi\Api4\Generic\DAOGetAction $apiGet |
66 | */ | |
67 | public function __construct($apiGet) { | |
68 | $this->entity = $apiGet->getEntityName(); | |
69 | $this->checkPermissions = $apiGet->getCheckPermissions(); | |
70 | $this->select = $apiGet->getSelect(); | |
71 | $this->where = $apiGet->getWhere(); | |
72 | $this->orderBy = $apiGet->getOrderBy(); | |
73 | $this->limit = $apiGet->getLimit(); | |
74 | $this->offset = $apiGet->getOffset(); | |
75 | if ($apiGet->getDebug()) { | |
76 | $this->debugOutput =& $apiGet->_debugOutput; | |
77 | } | |
78 | $baoName = CoreUtil::getBAOFromApiName($this->entity); | |
79 | $this->entityFieldNames = array_column($baoName::fields(), 'name'); | |
80 | $this->apiFieldSpec = $apiGet->entityFields(); | |
19b53e5b | 81 | |
3c7c8fa6 | 82 | $this->constructQueryObject($baoName); |
19b53e5b C |
83 | |
84 | // Add ACLs first to avoid redundant subclauses | |
85 | $this->query->where($this->getAclClause(self::MAIN_TABLE_ALIAS, $baoName)); | |
86 | } | |
87 | ||
88 | /** | |
4e97c268 | 89 | * Builds final sql statement after all params are set. |
19b53e5b | 90 | * |
4e97c268 CW |
91 | * @return string |
92 | * @throws \API_Exception | |
93 | * @throws \CRM_Core_Exception | |
94 | * @throws \Civi\API\Exception\UnauthorizedException | |
19b53e5b | 95 | */ |
4e97c268 | 96 | public function getSql() { |
19b53e5b C |
97 | $this->addJoins(); |
98 | $this->buildSelectFields(); | |
99 | $this->buildWhereClause(); | |
100 | ||
101 | // Select | |
102 | if (in_array('row_count', $this->select)) { | |
103 | $this->query->select("count(*) as c"); | |
104 | } | |
105 | else { | |
106 | foreach ($this->selectFields as $column => $alias) { | |
107 | $this->query->select("$column as `$alias`"); | |
108 | } | |
109 | // Order by | |
110 | $this->buildOrderBy(); | |
111 | } | |
112 | ||
113 | // Limit | |
114 | if (!empty($this->limit) || !empty($this->offset)) { | |
115 | $this->query->limit($this->limit, $this->offset); | |
116 | } | |
4e97c268 CW |
117 | return $this->query->toSQL(); |
118 | } | |
19b53e5b | 119 | |
4e97c268 CW |
120 | /** |
121 | * Why walk when you can | |
122 | * | |
123 | * @return array|int | |
124 | */ | |
125 | public function run() { | |
19b53e5b | 126 | $results = []; |
4e97c268 | 127 | $sql = $this->getSql(); |
b65fa6dc | 128 | if (is_array($this->debugOutput)) { |
0f7babcc | 129 | $this->debugOutput['sql'][] = $sql; |
b65fa6dc | 130 | } |
19b53e5b C |
131 | $query = \CRM_Core_DAO::executeQuery($sql); |
132 | ||
133 | while ($query->fetch()) { | |
134 | if (in_array('row_count', $this->select)) { | |
135 | $results[]['row_count'] = (int) $query->c; | |
136 | break; | |
137 | } | |
138 | $results[$query->id] = []; | |
139 | foreach ($this->selectFields as $column => $alias) { | |
140 | $returnName = $alias; | |
141 | $alias = str_replace('.', '_', $alias); | |
142 | $results[$query->id][$returnName] = property_exists($query, $alias) ? $query->$alias : NULL; | |
143 | }; | |
144 | } | |
145 | $event = new PostSelectQueryEvent($results, $this); | |
146 | \Civi::dispatcher()->dispatch(Events::POST_SELECT_QUERY, $event); | |
147 | ||
148 | return $event->getResults(); | |
149 | } | |
150 | ||
151 | /** | |
152 | * Gets all FK fields and does the required joins | |
153 | */ | |
154 | protected function addJoins() { | |
155 | $allFields = array_merge($this->select, array_keys($this->orderBy)); | |
156 | $recurse = function($clauses) use (&$allFields, &$recurse) { | |
157 | foreach ($clauses as $clause) { | |
158 | if ($clause[0] === 'NOT' && is_string($clause[1][0])) { | |
159 | $recurse($clause[1][1]); | |
160 | } | |
161 | elseif (in_array($clause[0], ['AND', 'OR', 'NOT'])) { | |
162 | $recurse($clause[1]); | |
163 | } | |
164 | elseif (is_array($clause[0])) { | |
165 | array_walk($clause, $recurse); | |
166 | } | |
167 | else { | |
168 | $allFields[] = $clause[0]; | |
169 | } | |
170 | } | |
171 | }; | |
172 | $recurse($this->where); | |
173 | $dotFields = array_unique(array_filter($allFields, function ($field) { | |
174 | return strpos($field, '.') !== FALSE; | |
175 | })); | |
176 | ||
177 | foreach ($dotFields as $dotField) { | |
178 | $this->joinFK($dotField); | |
179 | } | |
180 | } | |
181 | ||
182 | /** | |
183 | * Populate $this->selectFields | |
184 | * | |
185 | * @throws \Civi\API\Exception\UnauthorizedException | |
186 | */ | |
187 | protected function buildSelectFields() { | |
39e0f675 CW |
188 | $selectAll = (empty($this->select) || in_array('*', $this->select)); |
189 | $select = $selectAll ? $this->entityFieldNames : $this->select; | |
19b53e5b C |
190 | |
191 | // Always select the ID if the table has one. | |
192 | if (array_key_exists('id', $this->apiFieldSpec) || strstr($this->entity, 'Custom_')) { | |
193 | $this->selectFields[self::MAIN_TABLE_ALIAS . ".id"] = "id"; | |
194 | } | |
195 | ||
196 | // core return fields | |
39e0f675 | 197 | foreach ($select as $fieldName) { |
19b53e5b C |
198 | $field = $this->getField($fieldName); |
199 | if (strpos($fieldName, '.') && !empty($this->fkSelectAliases[$fieldName]) && !array_filter($this->getPathJoinTypes($fieldName))) { | |
200 | $this->selectFields[$this->fkSelectAliases[$fieldName]] = $fieldName; | |
201 | } | |
202 | elseif ($field && in_array($field['name'], $this->entityFieldNames)) { | |
203 | $this->selectFields[self::MAIN_TABLE_ALIAS . "." . UtilsArray::value('column_name', $field, $field['name'])] = $field['name']; | |
204 | } | |
205 | } | |
206 | } | |
207 | ||
208 | /** | |
209 | * @inheritDoc | |
210 | */ | |
211 | protected function buildWhereClause() { | |
212 | foreach ($this->where as $clause) { | |
213 | $sql_clause = $this->treeWalkWhereClause($clause); | |
214 | $this->query->where($sql_clause); | |
215 | } | |
216 | } | |
217 | ||
218 | /** | |
219 | * @inheritDoc | |
220 | */ | |
221 | protected function buildOrderBy() { | |
222 | foreach ($this->orderBy as $field => $dir) { | |
223 | if ($dir !== 'ASC' && $dir !== 'DESC') { | |
224 | throw new \API_Exception("Invalid sort direction. Cannot order by $field $dir"); | |
225 | } | |
226 | if ($this->getField($field)) { | |
227 | $this->query->orderBy(self::MAIN_TABLE_ALIAS . '.' . $field . " $dir"); | |
228 | } | |
229 | else { | |
230 | throw new \API_Exception("Invalid sort field. Cannot order by $field $dir"); | |
231 | } | |
232 | } | |
233 | } | |
234 | ||
235 | /** | |
236 | * Recursively validate and transform a branch or leaf clause array to SQL. | |
237 | * | |
238 | * @param array $clause | |
239 | * @return string SQL where clause | |
240 | * | |
241 | * @uses validateClauseAndComposeSql() to generate the SQL etc. | |
242 | * @todo if an 'and' is nested within and 'and' (or or-in-or) then should | |
243 | * flatten that to be a single list of clauses. | |
244 | */ | |
245 | protected function treeWalkWhereClause($clause) { | |
246 | switch ($clause[0]) { | |
247 | case 'OR': | |
248 | case 'AND': | |
249 | // handle branches | |
250 | if (count($clause[1]) === 1) { | |
251 | // a single set so AND|OR is immaterial | |
252 | return $this->treeWalkWhereClause($clause[1][0]); | |
253 | } | |
254 | else { | |
255 | $sql_subclauses = []; | |
256 | foreach ($clause[1] as $subclause) { | |
257 | $sql_subclauses[] = $this->treeWalkWhereClause($subclause); | |
258 | } | |
259 | return '(' . implode("\n" . $clause[0], $sql_subclauses) . ')'; | |
260 | } | |
261 | ||
262 | case 'NOT': | |
263 | // If we get a group of clauses with no operator, assume AND | |
264 | if (!is_string($clause[1][0])) { | |
265 | $clause[1] = ['AND', $clause[1]]; | |
266 | } | |
267 | return 'NOT (' . $this->treeWalkWhereClause($clause[1]) . ')'; | |
268 | ||
269 | default: | |
270 | return $this->validateClauseAndComposeSql($clause); | |
271 | } | |
272 | } | |
273 | ||
274 | /** | |
275 | * Validate and transform a leaf clause array to SQL. | |
276 | * @param array $clause [$fieldName, $operator, $criteria] | |
277 | * @return string SQL | |
278 | * @throws \API_Exception | |
279 | * @throws \Exception | |
280 | */ | |
281 | protected function validateClauseAndComposeSql($clause) { | |
282 | // Pad array for unary operators | |
283 | list($key, $operator, $value) = array_pad($clause, 3, NULL); | |
284 | $fieldSpec = $this->getField($key); | |
285 | // derive table and column: | |
286 | $table_name = NULL; | |
287 | $column_name = NULL; | |
288 | if (in_array($key, $this->entityFieldNames)) { | |
289 | $table_name = self::MAIN_TABLE_ALIAS; | |
290 | $column_name = $key; | |
291 | } | |
292 | elseif (strpos($key, '.') && isset($this->fkSelectAliases[$key])) { | |
293 | list($table_name, $column_name) = explode('.', $this->fkSelectAliases[$key]); | |
294 | } | |
295 | ||
296 | if (!$table_name || !$column_name) { | |
297 | throw new \API_Exception("Invalid field '$key' in where clause."); | |
298 | } | |
299 | ||
2929a8fb | 300 | FormattingUtil::formatInputValue($value, $fieldSpec, $this->getEntity()); |
19b53e5b C |
301 | |
302 | $sql_clause = \CRM_Core_DAO::createSQLFilter("`$table_name`.`$column_name`", [$operator => $value]); | |
303 | if ($sql_clause === NULL) { | |
304 | throw new \API_Exception("Invalid value in where clause for field '$key'"); | |
305 | } | |
306 | return $sql_clause; | |
307 | } | |
308 | ||
309 | /** | |
310 | * @inheritDoc | |
311 | */ | |
312 | protected function getFields() { | |
313 | return $this->apiFieldSpec; | |
314 | } | |
315 | ||
316 | /** | |
317 | * Fetch a field from the getFields list | |
318 | * | |
319 | * @param string $fieldName | |
320 | * | |
321 | * @return string|null | |
322 | */ | |
323 | protected function getField($fieldName) { | |
324 | if ($fieldName) { | |
325 | $fieldPath = explode('.', $fieldName); | |
326 | if (count($fieldPath) > 1) { | |
327 | $fieldName = implode('.', array_slice($fieldPath, -2)); | |
328 | } | |
329 | return UtilsArray::value($fieldName, $this->apiFieldSpec); | |
330 | } | |
331 | return NULL; | |
332 | } | |
333 | ||
334 | /** | |
335 | * @param $key | |
336 | * @throws \API_Exception | |
337 | */ | |
338 | protected function joinFK($key) { | |
339 | $pathArray = explode('.', $key); | |
340 | ||
341 | if (count($pathArray) < 2) { | |
342 | return; | |
343 | } | |
344 | ||
345 | /** @var \Civi\Api4\Service\Schema\Joiner $joiner */ | |
346 | $joiner = \Civi::container()->get('joiner'); | |
347 | $field = array_pop($pathArray); | |
348 | $pathString = implode('.', $pathArray); | |
349 | ||
350 | if (!$joiner->canJoin($this, $pathString)) { | |
351 | return; | |
352 | } | |
353 | ||
354 | $joinPath = $joiner->join($this, $pathString); | |
355 | /** @var \Civi\Api4\Service\Schema\Joinable\Joinable $lastLink */ | |
356 | $lastLink = array_pop($joinPath); | |
357 | ||
39e0f675 CW |
358 | $isWild = strpos($field, '*') !== FALSE; |
359 | if ($isWild) { | |
360 | if (!in_array($key, $this->select)) { | |
361 | throw new \API_Exception('Wildcards can only be used in the SELECT clause.'); | |
362 | } | |
363 | $this->select = array_diff($this->select, [$key]); | |
364 | } | |
365 | ||
19b53e5b C |
366 | // Cache field info for retrieval by $this->getField() |
367 | $prefix = array_pop($pathArray) . '.'; | |
368 | if (!isset($this->apiFieldSpec[$prefix . $field])) { | |
369 | $joinEntity = $lastLink->getEntity(); | |
370 | // Custom fields are already prefixed | |
371 | if ($lastLink instanceof CustomGroupJoinable) { | |
372 | $prefix = ''; | |
373 | } | |
374 | foreach ($lastLink->getEntityFields() as $fieldObject) { | |
375 | $this->apiFieldSpec[$prefix . $fieldObject->getName()] = $fieldObject->toArray() + ['entity' => $joinEntity]; | |
376 | } | |
377 | } | |
378 | ||
39e0f675 | 379 | if (!$isWild && !$lastLink->getField($field)) { |
19b53e5b C |
380 | throw new \API_Exception('Invalid join'); |
381 | } | |
382 | ||
39e0f675 CW |
383 | $fields = $isWild ? [] : [$field]; |
384 | // Expand wildcard and add matching fields to $this->select | |
385 | if ($isWild) { | |
386 | $fields = SelectUtil::getMatchingFields($field, $lastLink->getEntityFieldNames()); | |
387 | foreach ($fields as $field) { | |
388 | $this->select[] = $pathString . '.' . $field; | |
389 | } | |
390 | $this->select = array_unique($this->select); | |
19b53e5b | 391 | } |
39e0f675 CW |
392 | |
393 | foreach ($fields as $field) { | |
394 | // custom groups use aliases for field names | |
395 | $col = ($lastLink instanceof CustomGroupJoinable) ? $lastLink->getSqlColumn($field) : $field; | |
396 | // Check Permission on field. | |
397 | if ($this->checkPermissions && !empty($this->apiFieldSpec[$prefix . $field]['permission']) && !\CRM_Core_Permission::check($this->apiFieldSpec[$prefix . $field]['permission'])) { | |
398 | return; | |
399 | } | |
400 | $this->fkSelectAliases[$pathString . '.' . $field] = sprintf('%s.%s', $lastLink->getAlias(), $col); | |
7b51867f | 401 | } |
19b53e5b C |
402 | } |
403 | ||
404 | /** | |
405 | * @param \Civi\Api4\Service\Schema\Joinable\Joinable $joinable | |
406 | * | |
407 | * @return $this | |
408 | */ | |
409 | public function addJoinedTable(Joinable $joinable) { | |
410 | $this->joinedTables[] = $joinable; | |
411 | ||
412 | return $this; | |
413 | } | |
414 | ||
415 | /** | |
416 | * @return FALSE|string | |
417 | */ | |
418 | public function getFrom() { | |
419 | return AllCoreTables::getTableForClass(AllCoreTables::getFullName($this->entity)); | |
420 | } | |
421 | ||
422 | /** | |
423 | * @return string | |
424 | */ | |
425 | public function getEntity() { | |
426 | return $this->entity; | |
427 | } | |
428 | ||
429 | /** | |
430 | * @return array | |
431 | */ | |
432 | public function getSelect() { | |
433 | return $this->select; | |
434 | } | |
435 | ||
436 | /** | |
437 | * @return array | |
438 | */ | |
439 | public function getWhere() { | |
440 | return $this->where; | |
441 | } | |
442 | ||
443 | /** | |
444 | * @return array | |
445 | */ | |
446 | public function getOrderBy() { | |
447 | return $this->orderBy; | |
448 | } | |
449 | ||
450 | /** | |
451 | * @return mixed | |
452 | */ | |
453 | public function getLimit() { | |
454 | return $this->limit; | |
455 | } | |
456 | ||
457 | /** | |
458 | * @return mixed | |
459 | */ | |
460 | public function getOffset() { | |
461 | return $this->offset; | |
462 | } | |
463 | ||
464 | /** | |
465 | * @return array | |
466 | */ | |
467 | public function getSelectFields() { | |
468 | return $this->selectFields; | |
469 | } | |
470 | ||
471 | /** | |
472 | * @return bool | |
473 | */ | |
474 | public function isFillUniqueFields() { | |
475 | return $this->isFillUniqueFields; | |
476 | } | |
477 | ||
478 | /** | |
479 | * @return \CRM_Utils_SQL_Select | |
480 | */ | |
481 | public function getQuery() { | |
482 | return $this->query; | |
483 | } | |
484 | ||
485 | /** | |
486 | * @return array | |
487 | */ | |
488 | public function getJoins() { | |
489 | return $this->joins; | |
490 | } | |
491 | ||
492 | /** | |
493 | * @return array | |
494 | */ | |
495 | public function getApiFieldSpec() { | |
496 | return $this->apiFieldSpec; | |
497 | } | |
498 | ||
499 | /** | |
500 | * @return array | |
501 | */ | |
502 | public function getEntityFieldNames() { | |
503 | return $this->entityFieldNames; | |
504 | } | |
505 | ||
506 | /** | |
507 | * @return array | |
508 | */ | |
509 | public function getAclFields() { | |
510 | return $this->aclFields; | |
511 | } | |
512 | ||
513 | /** | |
514 | * @return bool|string | |
515 | */ | |
516 | public function getCheckPermissions() { | |
517 | return $this->checkPermissions; | |
518 | } | |
519 | ||
520 | /** | |
521 | * @return int | |
522 | */ | |
523 | public function getApiVersion() { | |
524 | return $this->apiVersion; | |
525 | } | |
526 | ||
527 | /** | |
528 | * @return array | |
529 | */ | |
530 | public function getFkSelectAliases() { | |
531 | return $this->fkSelectAliases; | |
532 | } | |
533 | ||
534 | /** | |
535 | * @return \Civi\Api4\Service\Schema\Joinable\Joinable[] | |
536 | */ | |
537 | public function getJoinedTables() { | |
538 | return $this->joinedTables; | |
539 | } | |
540 | ||
541 | /** | |
542 | * @return \Civi\Api4\Service\Schema\Joinable\Joinable | |
543 | */ | |
544 | public function getJoinedTable($alias) { | |
545 | foreach ($this->joinedTables as $join) { | |
546 | if ($join->getAlias() == $alias) { | |
547 | return $join; | |
548 | } | |
549 | } | |
550 | } | |
551 | ||
552 | /** | |
553 | * Get table name on basis of entity | |
554 | * | |
555 | * @param string $baoName | |
556 | * | |
557 | * @return void | |
558 | */ | |
3c7c8fa6 | 559 | public function constructQueryObject($baoName) { |
19b53e5b C |
560 | if (strstr($this->entity, 'Custom_')) { |
561 | $this->query = \CRM_Utils_SQL_Select::from(CoreUtil::getCustomTableByName(str_replace('Custom_', '', $this->entity)) . ' ' . self::MAIN_TABLE_ALIAS); | |
562 | $this->entityFieldNames = array_keys($this->apiFieldSpec); | |
563 | } | |
564 | else { | |
565 | $bao = new $baoName(); | |
566 | $this->query = \CRM_Utils_SQL_Select::from($bao->tableName() . ' ' . self::MAIN_TABLE_ALIAS); | |
567 | } | |
568 | } | |
569 | ||
570 | /** | |
571 | * Separates a string like 'emails.location_type.label' into an array, where | |
572 | * each value in the array tells whether it is 1-1 or 1-n join type | |
573 | * | |
574 | * @param string $pathString | |
575 | * Dot separated path to the field | |
576 | * | |
577 | * @return array | |
578 | * Index is table alias and value is boolean whether is 1-to-many join | |
579 | */ | |
580 | public function getPathJoinTypes($pathString) { | |
581 | $pathParts = explode('.', $pathString); | |
582 | // remove field | |
583 | array_pop($pathParts); | |
584 | $path = []; | |
585 | $query = $this; | |
586 | $isMultipleChecker = function($alias) use ($query) { | |
587 | foreach ($query->getJoinedTables() as $table) { | |
588 | if ($table->getAlias() === $alias) { | |
589 | return $table->getJoinType() === Joinable::JOIN_TYPE_ONE_TO_MANY; | |
590 | } | |
591 | } | |
592 | return FALSE; | |
593 | }; | |
594 | ||
595 | foreach ($pathParts as $part) { | |
596 | $path[$part] = $isMultipleChecker($part); | |
597 | } | |
598 | ||
599 | return $path; | |
600 | } | |
601 | ||
602 | } |