Civi/Test/Api3TestTrait.php

   1 <?php
   2
   3 namespace Civi\Test;
   4
   5 use Civi\API\Exception\NotImplementedException;
   6
   7 require_once 'api/v3/utils.php';
   8 /**
   9  * Class Api3TestTrait
  10  * @package Civi\Test
  11  *
  12  * This trait defines a number of helper functions for testing APIv3. Commonly
  13  * used helpers include `callAPISuccess()`, `callAPIFailure()`,
  14  * `assertAPISuccess()`, and `assertAPIFailure()`.
  15  *
  16  * This trait is intended for use with PHPUnit-based test cases.
  17  */
  18 trait Api3TestTrait {
  19
  20   /**
  21    * Get the api versions to test.
  22    *
  23    * @return array
  24    */
  25   public function versionThreeAndFour() {
  26     return [
  27       'APIv3' => [3],
  28       'APIv4' => [4],
  29     ];
  30   }
  31
  32   /**
  33    * Api version - easier to override than just a define
  34    * @var int
  35    */
  36   protected $_apiversion = 3;
  37
  38   /**
  39    * Check that api returned 'is_error' => 1
  40    * else provide full message
  41    * @param array $result
  42    * @param $expected
  43    * @param array $valuesToExclude
  44    * @param string $prefix
  45    *   Extra test to add to message.
  46    */
  47   public function assertAPIArrayComparison($result, $expected, $valuesToExclude = [], $prefix = '') {
  48     $valuesToExclude = array_merge($valuesToExclude, ['debug', 'xdebug', 'sequential']);
  49     foreach ($valuesToExclude as $value) {
  50       if (isset($result[$value])) {
  51         unset($result[$value]);
  52       }
  53       if (isset($expected[$value])) {
  54         unset($expected[$value]);
  55       }
  56     }
  57     $this->assertEquals($result, $expected, "api result array comparison failed " . $prefix . print_r($result, TRUE) . ' was compared to ' . print_r($expected, TRUE));
  58   }
  59
  60   /**
  61    * Check that a deleted item has been deleted.
  62    *
  63    * @param $entity
  64    * @param $id
  65    */
  66   public function assertAPIDeleted($entity, $id) {
  67     $this->callAPISuccess($entity, 'getcount', ['id' => $id], 0);
  68   }
  69
  70   /**
  71    * Check that api returned 'is_error' => 1.
  72    *
  73    * @param array $apiResult
  74    *   Api result.
  75    * @param string $prefix
  76    *   Extra test to add to message.
  77    * @param null $expectedError
  78    */
  79   public function assertAPIFailure($apiResult, $prefix = '', $expectedError = NULL) {
  80     if (!empty($prefix)) {
  81       $prefix .= ': ';
  82     }
  83     if ($expectedError && !empty($apiResult['is_error'])) {
  84       $this->assertStringContainsString($expectedError, $apiResult['error_message'], 'api error message not as expected' . $prefix);
  85     }
  86     $this->assertEquals(1, $apiResult['is_error'], "api call should have failed but it succeeded " . $prefix . (print_r($apiResult, TRUE)));
  87     $this->assertNotEmpty($apiResult['error_message']);
  88   }
  89
  90   /**
  91    * Check that api returned 'is_error' => 0.
  92    *
  93    * @param array $apiResult
  94    *   Api result.
  95    * @param string $prefix
  96    *   Extra test to add to message.
  97    */
  98   public function assertAPISuccess($apiResult, $prefix = '') {
  99     if (!empty($prefix)) {
 100       $prefix .= ': ';
 101     }
 102     $errorMessage = empty($apiResult['error_message']) ? '' : " " . $apiResult['error_message'];
 103
 104     if (!empty($apiResult['debug_information'])) {
 105       $errorMessage .= "\n " . print_r($apiResult['debug_information'], TRUE);
 106     }
 107     if (!empty($apiResult['trace'])) {
 108       $errorMessage .= "\n" . print_r($apiResult['trace'], TRUE);
 109     }
 110     $this->assertEmpty($apiResult['is_error'] ?? NULL, $prefix . $errorMessage);
 111   }
 112
 113   /**
 114    * This function exists to wrap api functions.
 115    * so we can ensure they fail where expected & throw exceptions without litterering the test with checks
 116    * @param string $entity
 117    * @param string $action
 118    * @param array $params
 119    * @param string $expectedErrorMessage
 120    *   Error.
 121    * @param null $extraOutput
 122    * @return array|int
 123    */
 124   public function callAPIFailure($entity, $action, $params, $expectedErrorMessage = NULL, $extraOutput = NULL) {
 125     if (is_array($params)) {
 126       $params += [
 127         'version' => $this->_apiversion,
 128       ];
 129     }
 130     try {
 131       $result = $this->civicrm_api($entity, $action, $params);
 132     }
 133     catch (\API_Exception $e) {
 134       // api v4 call failed and threw an exception.
 135       return [];
 136     }
 137     $this->assertAPIFailure($result, "We expected a failure for $entity $action but got a success", $expectedErrorMessage);
 138     return $result;
 139   }
 140
 141   /**
 142    * wrap api functions.
 143    * so we can ensure they succeed & throw exceptions without litterering the test with checks
 144    *
 145    * @param string $entity
 146    * @param string $action
 147    * @param array $params
 148    * @param mixed $checkAgainst
 149    *   Optional value to check result against, implemented for getvalue,.
 150    *   getcount, getsingle. Note that for getvalue the type is checked rather than the value
 151    *   for getsingle the array is compared against an array passed in - the id is not compared (for
 152    *   better or worse )
 153    *
 154    * @return array|int
 155    *
 156    * @throws \CRM_Core_Exception
 157    */
 158   public function callAPISuccess($entity, $action, $params = [], $checkAgainst = NULL) {
 159     $params = array_merge([
 160       'version' => $this->_apiversion,
 161       'debug' => 1,
 162     ],
 163       $params
 164     );
 165     switch (strtolower($action)) {
 166       case 'getvalue':
 167         return $this->callAPISuccessGetValue($entity, $params, $checkAgainst);
 168
 169       case 'getsingle':
 170         return $this->callAPISuccessGetSingle($entity, $params, $checkAgainst);
 171
 172       case 'getcount':
 173         return $this->callAPISuccessGetCount($entity, $params, $checkAgainst);
 174     }
 175     $result = $this->civicrm_api($entity, $action, $params);
 176     $this->assertAPISuccess($result, "Failure in api call for $entity $action");
 177     return $result;
 178   }
 179
 180   /**
 181    * This function exists to wrap api getValue function & check the result
 182    * so we can ensure they succeed & throw exceptions without littering the test with checks
 183    * There is a type check in this
 184    *
 185    * @param string $entity
 186    * @param array $params
 187    * @param int $count
 188    *
 189    * @return array|int
 190    */
 191   public function callAPISuccessGetCount($entity, $params, $count = NULL) {
 192     $params += [
 193       'version' => $this->_apiversion,
 194       'debug' => 1,
 195     ];
 196     $result = $this->civicrm_api($entity, 'getcount', $params);
 197     if (!is_int($result) || !empty($result['is_error']) || isset($result['values'])) {
 198       $this->fail('Invalid getcount result : ' . print_r($result, TRUE) . ' type :' . gettype($result));
 199     }
 200     if (is_int($count)) {
 201       $this->assertEquals($count, $result, "incorrect count returned from $entity getcount");
 202     }
 203     return $result;
 204   }
 205
 206   /**
 207    * This function exists to wrap api getsingle function & check the result
 208    * so we can ensure they succeed & throw exceptions without litterering the test with checks
 209    *
 210    * @param string $entity
 211    * @param array $params
 212    * @param array $checkAgainst
 213    *   Array to compare result against.
 214    *   - boolean
 215    *   - integer
 216    *   - double
 217    *   - string
 218    *   - array
 219    *   - object
 220    *
 221    * @throws \CRM_Core_Exception
 222    *
 223    * @return array|int
 224    */
 225   public function callAPISuccessGetSingle($entity, $params, $checkAgainst = NULL) {
 226     $params += [
 227       'version' => $this->_apiversion,
 228     ];
 229     $result = $this->civicrm_api($entity, 'getsingle', $params);
 230     if (!is_array($result) || !empty($result['is_error']) || isset($result['values'])) {
 231       $unfilteredResult = $this->civicrm_api($entity, 'get', ['version' => $this->_apiversion]);
 232       throw new \CRM_Core_Exception(
 233         'Invalid getsingle result' . print_r($result, TRUE)
 234         . "\n entity: $entity . \n params \n " . print_r($params, TRUE)
 235         . "\n entities retrieved with blank params \n" . print_r($unfilteredResult, TRUE)
 236       );
 237     }
 238     if ($checkAgainst) {
 239       // @todo - have gone with the fn that unsets id? should we check id?
 240       $this->checkArrayEquals($result, $checkAgainst);
 241     }
 242     return $result;
 243   }
 244
 245   /**
 246    * This function exists to wrap api getValue function & check the result
 247    * so we can ensure they succeed & throw exceptions without litterering the test with checks
 248    * There is a type check in this
 249    *
 250    * @param string $entity
 251    * @param array $params
 252    * @param string $type
 253    *   Per http://php.net/manual/en/function.gettype.php possible types.
 254    *   - boolean
 255    *   - integer
 256    *   - double
 257    *   - string
 258    *   - array
 259    *   - object
 260    *
 261    * @return array|int
 262    * @throws \CRM_Core_Exception
 263    */
 264   public function callAPISuccessGetValue($entity, $params, $type = NULL) {
 265     $params += [
 266       'version' => $this->_apiversion,
 267     ];
 268     $result = $this->civicrm_api($entity, 'getvalue', $params);
 269     if (is_array($result) && (!empty($result['is_error']) || isset($result['values']))) {
 270       throw new \CRM_Core_Exception('Invalid getvalue result' . print_r($result, TRUE));
 271     }
 272     if ($type) {
 273       if ($type === 'integer') {
 274         // api seems to return integers as strings
 275         $this->assertTrue(is_numeric($result), "expected a numeric value but got " . print_r($result, 1));
 276       }
 277       else {
 278         $this->assertType($type, $result, "returned result should have been of type $type but was ");
 279       }
 280     }
 281     return $result;
 282   }
 283
 284   /**
 285    * A stub for the API interface. This can be overriden by subclasses to change how the API is called.
 286    *
 287    * @param $entity
 288    * @param $action
 289    * @param array $params
 290    * @return array|int
 291    */
 292   public function civicrm_api($entity, $action, $params = []) {
 293     if (($params['version'] ?? 0) == 4) {
 294       return $this->runApi4Legacy($entity, $action, $params);
 295     }
 296     return civicrm_api($entity, $action, $params);
 297   }
 298
 299   /**
 300    * Emulate v3 syntax so we can run api3 tests on v4
 301    *
 302    * @param $v3Entity
 303    * @param $v3Action
 304    * @param array $v3Params
 305    * @return array|int
 306    * @throws \API_Exception
 307    * @throws \CiviCRM_API3_Exception
 308    * @throws \Exception
 309    */
 310   public function runApi4Legacy($v3Entity, $v3Action, $v3Params = []) {
 311     $v4Entity = \CRM_Core_DAO_AllCoreTables::convertEntityNameToCamel($v3Entity);
 312     $v4Action = $v3Action = strtolower($v3Action);
 313     $v4Params = ['checkPermissions' => isset($v3Params['check_permissions']) ? (bool) $v3Params['check_permissions'] : FALSE];
 314     $sequential = !empty($v3Params['sequential']);
 315     $options = \_civicrm_api3_get_options_from_params($v3Params, in_array($v4Entity, ['Contact', 'Participant', 'Event', 'Group', 'Contribution', 'Membership']));
 316     $indexBy = in_array($v3Action, ['get', 'create', 'replace']) && !$sequential ? 'id' : NULL;
 317     $onlyId = !empty($v3Params['format.only_id']);
 318     $onlySuccess = !empty($v3Params['format.is_success']);
 319     if (!empty($v3Params['filters']['is_current']) || !empty($v3Params['isCurrent'])) {
 320       $v4Params['current'] = TRUE;
 321     }
 322     $language = $v3Params['options']['language'] ?? $v3Params['option.language'] ?? NULL;
 323     if ($language) {
 324       $v4Params['language'] = $language;
 325     }
 326     $toRemove = ['option.', 'return', 'api.', 'format.'];
 327     $chains = $joins = $custom = [];
 328     foreach ($v3Params as $key => $val) {
 329       foreach ($toRemove as $remove) {
 330         if (strpos($key, $remove) === 0) {
 331           if ($remove == 'api.') {
 332             $chains[$key] = $val;
 333           }
 334           unset($v3Params[$key]);
 335         }
 336       }
 337     }
 338
 339     $v3Fields = civicrm_api3($v3Entity, 'getfields', ['action' => $v3Action])['values'];
 340
 341     // Fix 'null'
 342     foreach ($v3Params as $key => $val) {
 343       if ($val === 'null') {
 344         $v3Params[$key] = NULL;
 345       }
 346     }
 347
 348     if ($v4Entity == 'Setting') {
 349       $indexBy = NULL;
 350       $v4Params['domainId'] = $v3Params['domain_id'] ?? NULL;
 351       if ($v3Action == 'getfields') {
 352         if (!empty($v3Params['name'])) {
 353           $v3Params['filters']['name'] = $v3Params['name'];
 354         }
 355         foreach ($v3Params['filters'] ?? [] as $filter => $val) {
 356           $v4Params['where'][] = [$filter, '=', $val];
 357         }
 358       }
 359       if ($v3Action == 'create') {
 360         $v4Action = 'set';
 361       }
 362       if ($v3Action == 'revert') {
 363         $v4Params['select'] = (array) $v3Params['name'];
 364       }
 365       if ($v3Action == 'getvalue') {
 366         $options['return'] = [$v3Params['name'] => 1];
 367         $v3Params = [];
 368       }
 369       \CRM_Utils_Array::remove($v3Params, 'domain_id', 'name');
 370     }
 371
 372     \CRM_Utils_Array::remove($v3Params, 'options', 'debug', 'version', 'sort', 'offset', 'rowCount', 'check_permissions', 'sequential', 'filters', 'isCurrent');
 373
 374     // Work around ugly hack in v3 Domain api
 375     if ($v4Entity == 'Domain') {
 376       $v3Fields['version'] = ['name' => 'version', 'api.aliases' => ['domain_version']];
 377       unset($v3Fields['domain_version']);
 378     }
 379
 380     foreach ($v3Fields as $name => $field) {
 381       // Resolve v3 aliases
 382       foreach ($field['api.aliases'] ?? [] as $alias) {
 383         if (isset($v3Params[$alias])) {
 384           $v3Params[$field['name']] = $v3Params[$alias];
 385           unset($v3Params[$alias]);
 386         }
 387       }
 388       // Convert custom field names
 389       if (strpos($name, 'custom_') === 0 && is_numeric($name[7])) {
 390         // Strictly speaking, using titles instead of names is incorrect, but it works for
 391         // unit tests where names and titles are identical and saves an extra db lookup.
 392         $custom[$field['groupTitle']][$field['title']] = $name;
 393         $v4FieldName = $field['groupTitle'] . '.' . $field['title'];
 394         if (isset($v3Params[$name])) {
 395           $v3Params[$v4FieldName] = $v3Params[$name];
 396           unset($v3Params[$name]);
 397         }
 398         if (isset($options['return'][$name])) {
 399           $options['return'][$v4FieldName] = 1;
 400           unset($options['return'][$name]);
 401         }
 402       }
 403
 404       if ($name === 'option_group_id' && isset($v3Params[$name]) && !is_numeric($v3Params[$name])) {
 405         // This is a per field hack (bad) but we can't solve everything at once
 406         // & a cleverer way turned out to be too much for this round.
 407         // Being in the test class it's tested....
 408         $v3Params['option_group.name'] = $v3Params['option_group_id'];
 409         unset($v3Params['option_group_id']);
 410       }
 411       if (isset($field['pseudoconstant'], $v3Params[$name]) && $field['type'] === \CRM_Utils_Type::T_INT && !is_numeric($v3Params[$name]) && is_string($v3Params[$name])) {
 412         $v3Params[$name] = \CRM_Core_PseudoConstant::getKey(\CRM_Core_DAO_AllCoreTables::getFullName($v4Entity), $name, $v3Params[$name]);
 413       }
 414     }
 415
 416     switch ($v3Action) {
 417       case 'getcount':
 418         $v4Params['select'] = ['row_count'];
 419         // No break - keep processing as get
 420       case 'getsingle':
 421       case 'getvalue':
 422         $v4Action = 'get';
 423         // No break - keep processing as get
 424       case 'get':
 425         if ($options['return'] && $v3Action !== 'getcount') {
 426           $v4Params['select'] = array_keys($options['return']);
 427           // Ensure id field is returned as v3 always expects it
 428           if ($v4Entity != 'Setting' && !in_array('id', $v4Params['select'])) {
 429             $v4Params['select'][] = 'id';
 430           }
 431           // Convert join syntax
 432           foreach ($v4Params['select'] as $idx => $select) {
 433             if (strstr($select, '_id.')) {
 434               $joins[$select] = $v4Params['select'][$idx] = str_replace('_id.', '.', $select);
 435             }
 436           }
 437         }
 438         if ($options['limit'] && $v4Entity != 'Setting') {
 439           $v4Params['limit'] = $options['limit'];
 440         }
 441         if ($options['offset']) {
 442           $v4Params['offset'] = $options['offset'];
 443         }
 444         if ($options['sort']) {
 445           foreach (explode(',', $options['sort']) as $sort) {
 446             [$sortField, $sortDir] = array_pad(explode(' ', trim($sort)), 2, 'ASC');
 447             $v4Params['orderBy'][$sortField] = $sortDir;
 448           }
 449         }
 450         break;
 451
 452       case 'replace':
 453         if (empty($v3Params['values'])) {
 454           $v4Action = 'delete';
 455         }
 456         else {
 457           $v4Params['records'] = $v3Params['values'];
 458         }
 459         unset($v3Params['values']);
 460         break;
 461
 462       case 'create':
 463       case 'update':
 464         if (!empty($v3Params['id'])) {
 465           $v4Action = 'update';
 466           $v4Params['where'][] = ['id', '=', $v3Params['id']];
 467         }
 468
 469         $v4Params['values'] = $v3Params;
 470         unset($v4Params['values']['id']);
 471         break;
 472
 473       case 'delete':
 474         if (isset($v3Params['id'])) {
 475           $v4Params['where'][] = ['id', '=', $v3Params['id']];
 476         }
 477         break;
 478
 479       case 'getoptions':
 480         $indexBy = 0;
 481         $v4Action = 'getFields';
 482         $v4Params += [
 483           'where' => [['name', '=', $v3Params['field']]],
 484           'loadOptions' => TRUE,
 485         ];
 486         break;
 487
 488       case 'getfields':
 489         $v4Action = 'getFields';
 490         if (!empty($v3Params['action']) || !empty($v3Params['api_action'])) {
 491           $v4Params['action'] = !empty($v3Params['action']) ? $v3Params['action'] : $v3Params['api_action'];
 492         }
 493         $indexBy = !$sequential ? 'name' : NULL;
 494         break;
 495     }
 496
 497     // Ensure this api4 entity/action exists
 498     try {
 499       $actionInfo = \civicrm_api4($v4Entity, 'getActions', ['checkPermissions' => FALSE, 'where' => [['name', '=', $v4Action]]]);
 500     }
 501     catch (NotImplementedException $e) {
 502       // For now we'll mark the test incomplete if a v4 entity doesn't exit yet
 503       $this->markTestIncomplete($e->getMessage());
 504     }
 505     if (!isset($actionInfo[0])) {
 506       throw new \Exception("Api4 $v4Entity $v4Action does not exist.");
 507     }
 508
 509     // Migrate special params like fix_address
 510     foreach ($actionInfo[0]['params'] as $v4ParamName => $paramInfo) {
 511       // camelCase in api4, lower_case in api3
 512       $v3ParamName = strtolower(preg_replace('/(?=[A-Z])/', '_$0', $v4ParamName));
 513       if (isset($v3Params[$v3ParamName])) {
 514         $v4Params[$v4ParamName] = $v3Params[$v3ParamName];
 515         unset($v3Params[$v3ParamName]);
 516         if ($paramInfo['type'][0] == 'bool') {
 517           $v4Params[$v4ParamName] = (bool) $v4Params[$v4ParamName];
 518         }
 519       }
 520     }
 521
 522     // Build where clause for 'getcount', 'getsingle', 'getvalue', 'get' & 'replace'
 523     if ($v4Action == 'get' || $v3Action == 'replace') {
 524       foreach ($v3Params as $key => $val) {
 525         $op = '=';
 526         if (is_array($val) && count($val) == 1 && array_intersect_key($val, array_flip(\CRM_Core_DAO::acceptedSQLOperators()))) {
 527           foreach ($val as $op => $newVal) {
 528             $val = $newVal;
 529           }
 530         }
 531         $v4Params['where'][] = [$key, $op, $val];
 532       }
 533     }
 534
 535     try {
 536       $result = \civicrm_api4($v4Entity, $v4Action, $v4Params, $indexBy);
 537     }
 538     catch (\Exception $e) {
 539       return $onlySuccess ? 0 : [
 540         'is_error' => 1,
 541         'error_message' => $e->getMessage(),
 542         'version' => 4,
 543       ];
 544     }
 545
 546     if (($v3Action == 'getsingle' || $v3Action == 'getvalue' || $v3Action == 'delete') && count($result) != 1) {
 547       return $onlySuccess ? 0 : [
 548         'is_error' => 1,
 549         'error_message' => "Expected one $v4Entity but found " . count($result),
 550         'count' => count($result),
 551       ];
 552     }
 553
 554     if ($onlySuccess) {
 555       return 1;
 556     }
 557
 558     if ($v3Action == 'getcount') {
 559       return $result->count();
 560     }
 561
 562     if ($onlyId) {
 563       return $result->first()['id'];
 564     }
 565
 566     if ($v3Action == 'getvalue' && $v4Entity == 'Setting') {
 567       return $result->first()['value'] ?? NULL;
 568     }
 569
 570     if ($v3Action == 'getvalue') {
 571       $returnKey = array_keys($options['return'])[0];
 572       return $result->first()[$returnKey] ?? NULL;
 573     }
 574
 575     // Mimic api3 behavior when using 'replace' action to delete all
 576     if ($v3Action == 'replace' && $v4Action == 'delete') {
 577       $result->exchangeArray([]);
 578     }
 579
 580     if ($v3Action == 'getoptions') {
 581       return [
 582         'is_error' => 0,
 583         'count' => $result['options'] ? count($result['options']) : 0,
 584         'values' => $result['options'] ?: [],
 585         'version' => 4,
 586       ];
 587     }
 588
 589     // Emulate the weird return format of api3 settings
 590     if (($v3Action == 'get' || $v3Action == 'create') && $v4Entity == 'Setting') {
 591       $settings = [];
 592       foreach ($result as $item) {
 593         $settings[$item['domain_id']][$item['name']] = $item['value'];
 594       }
 595       $result->exchangeArray($sequential ? array_values($settings) : $settings);
 596     }
 597
 598     foreach ($result as $index => $row) {
 599       // Run chains
 600       foreach ($chains as $key => $params) {
 601         $result[$index][$key] = $this->runApi4LegacyChain($key, $params, $v4Entity, $row, $sequential);
 602       }
 603       // Convert join format
 604       foreach ($joins as $api3Key => $api4Key) {
 605         $result[$index][$api3Key] = $result[$index][$api4Key] ?? NULL;
 606       }
 607       // Resolve custom field names
 608       foreach ($custom as $group => $fields) {
 609         foreach ($fields as $field => $v3FieldName) {
 610           if (isset($row["$group.$field"])) {
 611             $result[$index][$v3FieldName] = $row["$group.$field"];
 612             unset($result[$index]["$group.$field"]);
 613           }
 614         }
 615       }
 616     }
 617
 618     if ($v3Action == 'getsingle') {
 619       return $result->first();
 620     }
 621
 622     return [
 623       'is_error' => 0,
 624       'version' => 4,
 625       'count' => count($result),
 626       'values' => (array) $result,
 627       'id' => is_object($result) && count($result) == 1 ? ($result->first()['id'] ?? NULL) : NULL,
 628     ];
 629   }
 630
 631   /**
 632    * @param string $key
 633    * @param mixed $params
 634    * @param string $mainEntity
 635    * @param array $result
 636    * @param bool $sequential
 637    * @return array
 638    * @throws \API_Exception
 639    */
 640   protected function runApi4LegacyChain($key, $params, $mainEntity, $result, $sequential) {
 641     // Handle an array of multiple calls using recursion
 642     if (is_array($params) && isset($params[0]) && is_array($params[0])) {
 643       $results = [];
 644       foreach ($params as $chain) {
 645         $results[] = $this->runApi4LegacyChain($key, $chain, $mainEntity, $result, $sequential);
 646       }
 647       return $results;
 648     }
 649
 650     // Handle single api call
 651     list(, $chainEntity, $chainAction) = explode('.', $key);
 652     $lcChainEntity = \CRM_Core_DAO_AllCoreTables::convertEntityNameToLower($chainEntity);
 653     $chainEntity = \CRM_Core_DAO_AllCoreTables::convertEntityNameToCamel($chainEntity);
 654     $lcMainEntity = \CRM_Core_DAO_AllCoreTables::convertEntityNameToLower($mainEntity);
 655     $params = is_array($params) ? $params : [];
 656
 657     // Api3 expects this to be inherited
 658     $params += ['sequential' => $sequential];
 659
 660     // Replace $value.field_name
 661     foreach ($params as $name => $param) {
 662       if (is_string($param) && strpos($param, '$value.') === 0) {
 663         $param = substr($param, 7);
 664         $params[$name] = $result[$param] ?? NULL;
 665       }
 666     }
 667
 668     try {
 669       $getFields = civicrm_api4($chainEntity, 'getFields', ['select' => ['name']], 'name');
 670     }
 671     catch (NotImplementedException $e) {
 672       $this->markTestIncomplete($e->getMessage());
 673     }
 674
 675     // Emulate the string-fu guesswork that api3 does
 676     if ($chainEntity == $mainEntity && empty($params['id']) &&  !empty($result['id'])) {
 677       $params['id'] = $result['id'];
 678     }
 679     elseif (empty($params['id']) && !empty($result[$lcChainEntity . '_id'])) {
 680       $params['id'] = $result[$lcChainEntity . '_id'];
 681     }
 682     elseif (!empty($result['id']) && isset($getFields[$lcMainEntity . '_id']) && empty($params[$lcMainEntity . '_id'])) {
 683       $params[$lcMainEntity . '_id'] = $result['id'];
 684     }
 685     return $this->runApi4Legacy($chainEntity, $chainAction, $params);
 686   }
 687
 688 }