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e47bcddb CW |
1 | <?php |
2 | /* | |
3 | +--------------------------------------------------------------------+ | |
41498ac5 | 4 | | Copyright CiviCRM LLC. All rights reserved. | |
e47bcddb | 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 | | |
e47bcddb CW |
9 | +--------------------------------------------------------------------+ |
10 | */ | |
11 | namespace Civi\API; | |
34f3bbd9 | 12 | |
ab039e22 | 13 | use Civi\API\Exception\UnauthorizedException; |
e47bcddb CW |
14 | |
15 | /** | |
16 | * Query builder for civicrm_api_basic_get. | |
17 | * | |
18 | * Fetches an entity based on specified params for the "where" clause, | |
19 | * return properties for the "select" clause, | |
20 | * as well as limit and order. | |
21 | * | |
22 | * Automatically joins on custom fields to return or filter by them. | |
23 | * | |
24 | * Supports an additional sql fragment which the calling api can provide. | |
25 | * | |
26 | * @package Civi\API | |
27 | */ | |
8bcc0d86 | 28 | abstract class SelectQuery { |
e47bcddb | 29 | |
6c051493 CW |
30 | const |
31 | MAX_JOINS = 4, | |
32 | MAIN_TABLE_ALIAS = 'a'; | |
5b46e216 | 33 | |
e47bcddb CW |
34 | /** |
35 | * @var string | |
36 | */ | |
37 | protected $entity; | |
c64f69d9 CW |
38 | public $select = []; |
39 | public $where = []; | |
40 | public $orderBy = []; | |
8bcc0d86 CW |
41 | public $limit; |
42 | public $offset; | |
e47bcddb CW |
43 | /** |
44 | * @var array | |
45 | */ | |
c64f69d9 | 46 | protected $selectFields = []; |
e47bcddb CW |
47 | /** |
48 | * @var bool | |
49 | */ | |
8bcc0d86 | 50 | public $isFillUniqueFields = FALSE; |
e47bcddb CW |
51 | /** |
52 | * @var \CRM_Utils_SQL_Select | |
53 | */ | |
54 | protected $query; | |
2cfe873c CW |
55 | /** |
56 | * @var array | |
57 | */ | |
c64f69d9 | 58 | protected $joins = []; |
e47bcddb CW |
59 | /** |
60 | * @var array | |
61 | */ | |
62 | protected $apiFieldSpec; | |
63 | /** | |
64 | * @var array | |
65 | */ | |
66 | protected $entityFieldNames; | |
b53bcc5d CW |
67 | /** |
68 | * @var array | |
69 | */ | |
c64f69d9 | 70 | protected $aclFields = []; |
d343069c CW |
71 | /** |
72 | * @var string|bool | |
73 | */ | |
8e8bf584 | 74 | protected $checkPermissions; |
8bcc0d86 CW |
75 | |
76 | protected $apiVersion; | |
e47bcddb CW |
77 | |
78 | /** | |
8bcc0d86 | 79 | * @param string $entity |
8e8bf584 | 80 | * @param bool $checkPermissions |
e47bcddb | 81 | */ |
8e8bf584 | 82 | public function __construct($entity, $checkPermissions) { |
8bcc0d86 CW |
83 | $this->entity = $entity; |
84 | require_once 'api/v3/utils.php'; | |
85 | $baoName = _civicrm_api3_get_BAO($entity); | |
6c051493 | 86 | $bao = new $baoName(); |
e47bcddb | 87 | |
6c051493 | 88 | $this->entityFieldNames = _civicrm_api3_field_names(_civicrm_api3_build_fields_array($bao)); |
8bcc0d86 | 89 | $this->apiFieldSpec = $this->getFields(); |
e47bcddb | 90 | |
6c051493 | 91 | $this->query = \CRM_Utils_SQL_Select::from($bao->tableName() . ' ' . self::MAIN_TABLE_ALIAS); |
b53bcc5d | 92 | |
6c051493 | 93 | // Add ACLs first to avoid redundant subclauses |
8e8bf584 | 94 | $this->checkPermissions = $checkPermissions; |
6c051493 | 95 | $this->query->where($this->getAclClause(self::MAIN_TABLE_ALIAS, $baoName)); |
e47bcddb CW |
96 | } |
97 | ||
d343069c CW |
98 | /** |
99 | * Build & execute the query and return results array | |
100 | * | |
066c4638 | 101 | * @return array|int |
d343069c CW |
102 | * @throws \API_Exception |
103 | * @throws \CRM_Core_Exception | |
104 | * @throws \Exception | |
105 | */ | |
e47bcddb | 106 | public function run() { |
8bcc0d86 | 107 | $this->buildSelectFields(); |
e47bcddb | 108 | |
8bcc0d86 | 109 | $this->buildWhereClause(); |
258c92c6 | 110 | if (in_array('count_rows', $this->select)) { |
8bcc0d86 | 111 | $this->query->select("count(*) as c"); |
e47bcddb | 112 | } |
8bcc0d86 CW |
113 | else { |
114 | foreach ($this->selectFields as $column => $alias) { | |
69aae315 | 115 | $this->query->select("$column as `$alias`"); |
e47bcddb | 116 | } |
8bcc0d86 CW |
117 | // Order by |
118 | $this->buildOrderBy(); | |
e47bcddb CW |
119 | } |
120 | ||
530c3791 | 121 | // Limit |
8bcc0d86 CW |
122 | if (!empty($this->limit) || !empty($this->offset)) { |
123 | $this->query->limit($this->limit, $this->offset); | |
e47bcddb CW |
124 | } |
125 | ||
c64f69d9 | 126 | $result_entities = []; |
e47bcddb CW |
127 | $result_dao = \CRM_Core_DAO::executeQuery($this->query->toSQL()); |
128 | ||
129 | while ($result_dao->fetch()) { | |
258c92c6 | 130 | if (in_array('count_rows', $this->select)) { |
e47bcddb CW |
131 | return (int) $result_dao->c; |
132 | } | |
c64f69d9 | 133 | $result_entities[$result_dao->id] = []; |
8bcc0d86 | 134 | foreach ($this->selectFields as $column => $alias) { |
69aae315 CW |
135 | $returnName = $alias; |
136 | $alias = str_replace('.', '_', $alias); | |
e47bcddb | 137 | if (property_exists($result_dao, $alias) && $result_dao->$alias != NULL) { |
69aae315 | 138 | $result_entities[$result_dao->id][$returnName] = $result_dao->$alias; |
e47bcddb CW |
139 | } |
140 | // Backward compatibility on fields names. | |
984f31ae CW |
141 | if ($this->isFillUniqueFields && !empty($this->apiFieldSpec[$alias]['uniqueName'])) { |
142 | $result_entities[$result_dao->id][$this->apiFieldSpec[$alias]['uniqueName']] = $result_dao->$alias; | |
e47bcddb CW |
143 | } |
144 | foreach ($this->apiFieldSpec as $returnName => $spec) { | |
145 | if (empty($result_entities[$result_dao->id][$returnName]) && !empty($result_entities[$result_dao->id][$spec['name']])) { | |
146 | $result_entities[$result_dao->id][$returnName] = $result_entities[$result_dao->id][$spec['name']]; | |
147 | } | |
148 | } | |
149 | }; | |
150 | } | |
e47bcddb CW |
151 | return $result_entities; |
152 | } | |
153 | ||
154 | /** | |
155 | * @param \CRM_Utils_SQL_Select $sqlFragment | |
4b350175 | 156 | * @return SelectQuery |
e47bcddb CW |
157 | */ |
158 | public function merge($sqlFragment) { | |
159 | $this->query->merge($sqlFragment); | |
160 | return $this; | |
161 | } | |
69aae315 CW |
162 | |
163 | /** | |
164 | * Joins onto an fk field | |
165 | * | |
166 | * Adds one or more joins to the query to make this field available for use in a clause. | |
167 | * | |
d343069c CW |
168 | * Enforces permissions at the api level and by appending the acl clause for that entity to the join. |
169 | * | |
69aae315 | 170 | * @param $fkFieldName |
2cfe873c CW |
171 | * @param $side |
172 | * | |
69aae315 CW |
173 | * @return array|null |
174 | * Returns the table and field name for adding this field to a SELECT or WHERE clause | |
d343069c | 175 | * @throws \API_Exception |
ab039e22 | 176 | * @throws \Civi\API\Exception\UnauthorizedException |
69aae315 | 177 | */ |
8bcc0d86 | 178 | protected function addFkField($fkFieldName, $side) { |
69aae315 CW |
179 | $stack = explode('.', $fkFieldName); |
180 | if (count($stack) < 2) { | |
181 | return NULL; | |
182 | } | |
6c051493 | 183 | $prev = self::MAIN_TABLE_ALIAS; |
69aae315 CW |
184 | foreach ($stack as $depth => $fieldName) { |
185 | // Setup variables then skip the first level | |
186 | if (!$depth) { | |
187 | $fk = $fieldName; | |
188 | // We only join on core fields | |
189 | // @TODO: Custom contact ref fields could be supported too | |
190 | if (!in_array($fk, $this->entityFieldNames)) { | |
191 | return NULL; | |
192 | } | |
193 | $fkField = &$this->apiFieldSpec[$fk]; | |
194 | continue; | |
195 | } | |
4f7a32d8 | 196 | // More than 4 joins deep seems excessive - DOS attack? |
5b46e216 | 197 | if ($depth > self::MAX_JOINS) { |
3924e596 | 198 | throw new UnauthorizedException("Maximum number of joins exceeded in parameter $fkFieldName"); |
4f7a32d8 | 199 | } |
466fce54 CW |
200 | $subStack = array_slice($stack, 0, $depth); |
201 | $this->getJoinInfo($fkField, $subStack); | |
2cfe873c | 202 | if (!isset($fkField['FKApiName']) || !isset($fkField['FKClassName'])) { |
ab039e22 | 203 | // Join doesn't exist - might be another param with a dot in it for some reason, we'll just ignore it. |
69aae315 CW |
204 | return NULL; |
205 | } | |
a762b380 | 206 | // Ensure we have permission to access the other api |
b53bcc5d | 207 | if (!$this->checkPermissionToJoin($fkField['FKApiName'], $subStack)) { |
ab039e22 | 208 | throw new UnauthorizedException("Authorization failed to join onto {$fkField['FKApiName']} api in parameter $fkFieldName"); |
a762b380 | 209 | } |
69aae315 CW |
210 | if (!isset($fkField['FKApiSpec'])) { |
211 | $fkField['FKApiSpec'] = \_civicrm_api_get_fields($fkField['FKApiName']); | |
212 | } | |
213 | $fieldInfo = \CRM_Utils_Array::value($fieldName, $fkField['FKApiSpec']); | |
214 | ||
9c846e15 CW |
215 | $keyColumn = \CRM_Utils_Array::value('FKKeyColumn', $fkField, 'id'); |
216 | if (!$fieldInfo || !isset($fkField['FKApiSpec'][$keyColumn])) { | |
ab039e22 | 217 | // Join doesn't exist - might be another param with a dot in it for some reason, we'll just ignore it. |
69aae315 CW |
218 | return NULL; |
219 | } | |
3493febb CW |
220 | |
221 | // Skip if we don't have permission to access this field | |
222 | if ($this->checkPermissions && !empty($fieldInfo['permission']) && !\CRM_Core_Permission::check($fieldInfo['permission'])) { | |
223 | return NULL; | |
224 | } | |
225 | ||
69aae315 | 226 | $fkTable = \CRM_Core_DAO_AllCoreTables::getTableForClass($fkField['FKClassName']); |
b53bcc5d | 227 | $tableAlias = implode('_to_', $subStack) . "_to_$fkTable"; |
69aae315 | 228 | |
d343069c | 229 | // Add acl condition |
2cfe873c | 230 | $joinCondition = array_merge( |
c64f69d9 | 231 | ["$prev.$fk = $tableAlias.$keyColumn"], |
2cfe873c CW |
232 | $this->getAclClause($tableAlias, \_civicrm_api3_get_BAO($fkField['FKApiName']), $subStack) |
233 | ); | |
d343069c | 234 | |
9c846e15 CW |
235 | if (!empty($fkField['FKCondition'])) { |
236 | $joinCondition[] = str_replace($fkTable, $tableAlias, $fkField['FKCondition']); | |
237 | } | |
238 | ||
2cfe873c | 239 | $this->join($side, $fkTable, $tableAlias, $joinCondition); |
69aae315 CW |
240 | |
241 | if (strpos($fieldName, 'custom_') === 0) { | |
2cfe873c | 242 | list($tableAlias, $fieldName) = $this->addCustomField($fieldInfo, $side, $tableAlias); |
69aae315 CW |
243 | } |
244 | ||
245 | // Get ready to recurse to the next level | |
246 | $fk = $fieldName; | |
247 | $fkField = &$fkField['FKApiSpec'][$fieldName]; | |
248 | $prev = $tableAlias; | |
249 | } | |
c64f69d9 | 250 | return [$tableAlias, $fieldName]; |
69aae315 CW |
251 | } |
252 | ||
466fce54 | 253 | /** |
9c846e15 | 254 | * Get join info for dynamically-joined fields (e.g. "entity_id", "option_group") |
466fce54 CW |
255 | * |
256 | * @param $fkField | |
257 | * @param $stack | |
258 | */ | |
259 | protected function getJoinInfo(&$fkField, $stack) { | |
260 | if ($fkField['name'] == 'entity_id') { | |
261 | $entityTableParam = substr(implode('.', $stack), 0, -2) . 'table'; | |
262 | $entityTable = \CRM_Utils_Array::value($entityTableParam, $this->where); | |
263 | if ($entityTable && is_string($entityTable) && \CRM_Core_DAO_AllCoreTables::getClassForTable($entityTable)) { | |
264 | $fkField['FKClassName'] = \CRM_Core_DAO_AllCoreTables::getClassForTable($entityTable); | |
265 | $fkField['FKApiName'] = \CRM_Core_DAO_AllCoreTables::getBriefName($fkField['FKClassName']); | |
266 | } | |
267 | } | |
9c846e15 CW |
268 | if (!empty($fkField['pseudoconstant']['optionGroupName'])) { |
269 | $fkField['FKClassName'] = 'CRM_Core_DAO_OptionValue'; | |
270 | $fkField['FKApiName'] = 'OptionValue'; | |
271 | $fkField['FKKeyColumn'] = 'value'; | |
272 | $fkField['FKCondition'] = "civicrm_option_value.option_group_id = (SELECT id FROM civicrm_option_group WHERE name = '{$fkField['pseudoconstant']['optionGroupName']}')"; | |
273 | } | |
466fce54 CW |
274 | } |
275 | ||
69aae315 CW |
276 | /** |
277 | * Joins onto a custom field | |
278 | * | |
279 | * Adds a join to the query to make this field available for use in a clause. | |
280 | * | |
281 | * @param array $customField | |
2cfe873c | 282 | * @param string $side |
69aae315 CW |
283 | * @param string $baseTable |
284 | * @return array | |
285 | * Returns the table and field name for adding this field to a SELECT or WHERE clause | |
286 | */ | |
8bcc0d86 | 287 | protected function addCustomField($customField, $side, $baseTable = self::MAIN_TABLE_ALIAS) { |
69aae315 CW |
288 | $tableName = $customField["table_name"]; |
289 | $columnName = $customField["column_name"]; | |
290 | $tableAlias = "{$baseTable}_to_$tableName"; | |
c64f69d9 CW |
291 | $this->join($side, $tableName, $tableAlias, ["`$tableAlias`.entity_id = `$baseTable`.id"]); |
292 | return [$tableAlias, $columnName]; | |
69aae315 CW |
293 | } |
294 | ||
295 | /** | |
296 | * Fetch a field from the getFields list | |
297 | * | |
69aae315 CW |
298 | * @param string $fieldName |
299 | * @return array|null | |
300 | */ | |
8bcc0d86 | 301 | abstract protected function getField($fieldName); |
69aae315 | 302 | |
48488ea3 | 303 | /** |
2fa03859 CW |
304 | * Perform input validation on params that use the join syntax |
305 | * | |
306 | * Arguably this should be done at the api wrapper level, but doing it here provides a bit more consistency | |
307 | * in that api permissions to perform the join are checked first. | |
48488ea3 CW |
308 | * |
309 | * @param $fieldName | |
310 | * @param $value | |
311 | * @throws \Exception | |
312 | */ | |
8bcc0d86 | 313 | protected function validateNestedInput($fieldName, &$value) { |
48488ea3 CW |
314 | $stack = explode('.', $fieldName); |
315 | $spec = $this->apiFieldSpec; | |
316 | $fieldName = array_pop($stack); | |
317 | foreach ($stack as $depth => $name) { | |
318 | $entity = $spec[$name]['FKApiName']; | |
319 | $spec = $spec[$name]['FKApiSpec']; | |
320 | } | |
c64f69d9 | 321 | $params = [$fieldName => $value]; |
2fa03859 CW |
322 | \_civicrm_api3_validate_fields($entity, 'get', $params, $spec); |
323 | $value = $params[$fieldName]; | |
48488ea3 CW |
324 | } |
325 | ||
a762b380 CW |
326 | /** |
327 | * Check permission to join onto another api entity | |
328 | * | |
329 | * @param string $entity | |
330 | * @param array $fieldStack | |
331 | * The stack of fields leading up to this join | |
332 | * @return bool | |
333 | */ | |
8bcc0d86 | 334 | protected function checkPermissionToJoin($entity, $fieldStack) { |
d343069c | 335 | if (!$this->checkPermissions) { |
a762b380 CW |
336 | return TRUE; |
337 | } | |
338 | // Build an array of params that relate to the joined entity | |
c64f69d9 | 339 | $params = [ |
a762b380 | 340 | 'version' => 3, |
c64f69d9 | 341 | 'return' => [], |
d343069c | 342 | 'check_permissions' => $this->checkPermissions, |
c64f69d9 | 343 | ]; |
a762b380 CW |
344 | $prefix = implode('.', $fieldStack) . '.'; |
345 | $len = strlen($prefix); | |
8bcc0d86 | 346 | foreach ($this->select as $key => $ret) { |
a762b380 CW |
347 | if (strpos($key, $prefix) === 0) { |
348 | $params['return'][substr($key, $len)] = $ret; | |
349 | } | |
350 | } | |
8bcc0d86 | 351 | foreach ($this->where as $key => $param) { |
a762b380 CW |
352 | if (strpos($key, $prefix) === 0) { |
353 | $params[substr($key, $len)] = $param; | |
354 | } | |
355 | } | |
356 | ||
357 | return \Civi::service('civi_api_kernel')->runAuthorize($entity, 'get', $params); | |
358 | } | |
359 | ||
188fd46b | 360 | /** |
d343069c CW |
361 | * Get acl clause for an entity |
362 | * | |
363 | * @param string $tableAlias | |
6c051493 | 364 | * @param string $baoName |
b53bcc5d | 365 | * @param array $stack |
2cfe873c | 366 | * @return array |
188fd46b | 367 | */ |
c64f69d9 | 368 | protected function getAclClause($tableAlias, $baoName, $stack = []) { |
d343069c | 369 | if (!$this->checkPermissions) { |
c64f69d9 | 370 | return []; |
d343069c | 371 | } |
b53bcc5d CW |
372 | // Prevent (most) redundant acl sub clauses if they have already been applied to the main entity. |
373 | // FIXME: Currently this only works 1 level deep, but tracking through multiple joins would increase complexity | |
374 | // and just doing it for the first join takes care of most acl clause deduping. | |
375 | if (count($stack) === 1 && in_array($stack[0], $this->aclFields)) { | |
c64f69d9 | 376 | return []; |
b53bcc5d | 377 | } |
20e41014 | 378 | $clauses = $baoName::getSelectWhereClause($tableAlias); |
6c051493 CW |
379 | if (!$stack) { |
380 | // Track field clauses added to the main entity | |
381 | $this->aclFields = array_keys($clauses); | |
b53bcc5d | 382 | } |
2cfe873c | 383 | return array_filter($clauses); |
188fd46b CW |
384 | } |
385 | ||
530c3791 CW |
386 | /** |
387 | * Orders the query by one or more fields | |
388 | * | |
530c3791 CW |
389 | * @throws \API_Exception |
390 | * @throws \Civi\API\Exception\UnauthorizedException | |
391 | */ | |
8bcc0d86 | 392 | protected function buildOrderBy() { |
8bcc0d86 | 393 | $sortParams = is_string($this->orderBy) ? explode(',', $this->orderBy) : (array) $this->orderBy; |
4c6cc364 CW |
394 | foreach ($sortParams as $index => $item) { |
395 | $item = trim($item); | |
396 | if ($item == '(1)') { | |
397 | continue; | |
398 | } | |
399 | $words = preg_split("/[\s]+/", $item); | |
530c3791 CW |
400 | if ($words) { |
401 | // Direction defaults to ASC unless DESC is specified | |
402 | $direction = strtoupper(\CRM_Utils_Array::value(1, $words, '')) == 'DESC' ? ' DESC' : ''; | |
403 | $field = $this->getField($words[0]); | |
404 | if ($field) { | |
4c6cc364 | 405 | $this->query->orderBy(self::MAIN_TABLE_ALIAS . '.' . $field['name'] . $direction, NULL, $index); |
530c3791 CW |
406 | } |
407 | elseif (strpos($words[0], '.')) { | |
2cfe873c | 408 | $join = $this->addFkField($words[0], 'LEFT'); |
530c3791 | 409 | if ($join) { |
4c6cc364 | 410 | $this->query->orderBy("`{$join[0]}`.`{$join[1]}`$direction", NULL, $index); |
530c3791 CW |
411 | } |
412 | } | |
413 | else { | |
414 | throw new \API_Exception("Unknown field specified for sort. Cannot order by '$item'"); | |
415 | } | |
416 | } | |
417 | } | |
530c3791 CW |
418 | } |
419 | ||
2cfe873c CW |
420 | /** |
421 | * @param string $side | |
422 | * @param string $tableName | |
423 | * @param string $tableAlias | |
424 | * @param array $conditions | |
425 | */ | |
426 | public function join($side, $tableName, $tableAlias, $conditions) { | |
427 | // INNER JOINs take precedence over LEFT JOINs | |
428 | if ($side != 'LEFT' || !isset($this->joins[$tableAlias])) { | |
429 | $this->joins[$tableAlias] = $side; | |
430 | $this->query->join($tableAlias, "$side JOIN `$tableName` `$tableAlias` ON " . implode(' AND ', $conditions)); | |
431 | } | |
432 | } | |
433 | ||
8bcc0d86 CW |
434 | /** |
435 | * Populate where clauses | |
436 | * | |
437 | * @throws \Civi\API\Exception\UnauthorizedException | |
438 | * @throws \Exception | |
439 | */ | |
440 | abstract protected function buildWhereClause(); | |
441 | ||
442 | /** | |
443 | * Populate $this->selectFields | |
444 | * | |
445 | * @throws \Civi\API\Exception\UnauthorizedException | |
446 | */ | |
447 | protected function buildSelectFields() { | |
448 | $return_all_fields = (empty($this->select) || !is_array($this->select)); | |
449 | $return = $return_all_fields ? $this->entityFieldNames : $this->select; | |
450 | if ($return_all_fields || in_array('custom', $this->select)) { | |
451 | foreach (array_keys($this->apiFieldSpec) as $fieldName) { | |
452 | if (strpos($fieldName, 'custom_') === 0) { | |
453 | $return[] = $fieldName; | |
454 | } | |
455 | } | |
456 | } | |
457 | ||
523c222f | 458 | // Always select the ID if the table has one. |
459 | if (array_key_exists('id', $this->apiFieldSpec)) { | |
460 | $this->selectFields[self::MAIN_TABLE_ALIAS . ".id"] = "id"; | |
461 | } | |
8bcc0d86 CW |
462 | |
463 | // core return fields | |
464 | foreach ($return as $fieldName) { | |
465 | $field = $this->getField($fieldName); | |
466 | if ($field && in_array($field['name'], $this->entityFieldNames)) { | |
467 | $this->selectFields[self::MAIN_TABLE_ALIAS . ".{$field['name']}"] = $field['name']; | |
468 | } | |
469 | elseif (strpos($fieldName, '.')) { | |
470 | $fkField = $this->addFkField($fieldName, 'LEFT'); | |
471 | if ($fkField) { | |
472 | $this->selectFields[implode('.', $fkField)] = $fieldName; | |
473 | } | |
474 | } | |
475 | elseif ($field && strpos($fieldName, 'custom_') === 0) { | |
476 | list($table_name, $column_name) = $this->addCustomField($field, 'LEFT'); | |
477 | ||
478 | if ($field['data_type'] != 'ContactReference') { | |
479 | // 'ordinary' custom field. We will select the value as custom_XX. | |
480 | $this->selectFields["$table_name.$column_name"] = $fieldName; | |
481 | } | |
482 | else { | |
483 | // contact reference custom field. The ID will be stored in custom_XX_id. | |
484 | // custom_XX will contain the sort name of the contact. | |
485 | $this->query->join("c_$fieldName", "LEFT JOIN civicrm_contact c_$fieldName ON c_$fieldName.id = `$table_name`.`$column_name`"); | |
486 | $this->selectFields["$table_name.$column_name"] = $fieldName . "_id"; | |
487 | // We will call the contact table for the join c_XX. | |
488 | $this->selectFields["c_$fieldName.sort_name"] = $fieldName; | |
489 | } | |
490 | } | |
491 | } | |
492 | } | |
493 | ||
494 | /** | |
495 | * Load entity fields | |
496 | * @return array | |
497 | */ | |
498 | abstract protected function getFields(); | |
499 | ||
e47bcddb | 500 | } |