api/api.php

   1 <?php
   2
   3 /**
   4  * @file CiviCRM APIv3 API wrapper.
   5  *
   6  * @package CiviCRM_APIv3
   7  */
   8
   9 /**
  10  * CiviCRM API wrapper function.
  11  *
  12  * @param string $entity
  13  *   type of entities to deal with
  14  * @param string $action
  15  *   create, get, delete or some special action name.
  16  * @param array $params
  17  *   array to be passed to function
  18  *
  19  * @return array|int
  20  */
  21 function civicrm_api(string $entity, string $action, array $params) {
  22   return \Civi::service('civi_api_kernel')->runSafe($entity, $action, $params);
  23 }
  24
  25 /**
  26  * CiviCRM API version 4.
  27  *
  28  * This API (Application Programming Interface) is used to access and manage data in CiviCRM.
  29  *
  30  * APIv4 is the latest stable version.
  31  *
  32  * @see https://docs.civicrm.org/dev/en/latest/api/v4/usage/
  33  *
  34  * @param string $entity Name of the CiviCRM entity to access.
  35  *   All entity names are capitalized CamelCase, e.g. `ContributionPage`.
  36  *   Most entities correspond to a database table (e.g. `Contact` is the table `civicrm_contact`).
  37  *   For a complete list of available entities, call `civicrm_api4('Entity', 'get');`
  38  *
  39  * @param string $action The "verb" of the api call.
  40  *   For a complete list of actions for a given entity (e.g. `Contact`), call `civicrm_api4('Contact', 'getActions');`
  41  *
  42  * @param array $params An array of API input keyed by parameter name.
  43  *   The easiest way to discover all available parameters is to visit the API Explorer on your CiviCRM site.
  44  *   The API Explorer is listed in the CiviCRM menu under Support -> Developer.
  45  *
  46  * @param string|int|array $index Controls the Result array format.
  47  *   By default the api Result contains a non-associative array of data. Passing an $index tells the api to
  48  *   automatically reformat the array, depending on the variable type passed:
  49  *   - **Integer:** return a single result array;
  50  *     e.g. `$index = 0` will return the first result, 1 will return the second, and -1 will return the last.
  51  *   - **String:** index the results by a field value;
  52  *     e.g. `$index = "name"` will return an associative array with the field 'name' as keys.
  53  *   - **Non-associative array:** return a single value from each result;
  54  *     e.g. `$index = ['title']` will return a non-associative array of strings - the 'title' field from each result.
  55  *   - **Associative array:** a combination of the previous two modes;
  56  *     e.g. `$index = ['name' => 'title']` will return an array of strings - the 'title' field keyed by the 'name' field.
  57  *
  58  * @return \Civi\Api4\Generic\Result
  59  * @throws \API_Exception
  60  * @throws \Civi\API\Exception\NotImplementedException
  61  */
  62 function civicrm_api4(string $entity, string $action, array $params = [], $index = NULL) {
  63   $indexField = $index && is_string($index) && !CRM_Utils_Rule::integer($index) ? $index : NULL;
  64   $removeIndexField = FALSE;
  65
  66   // If index field is not part of the select query, we add it here and remove it below
  67   if ($indexField && !empty($params['select']) && is_array($params['select']) && !\Civi\Api4\Utils\SelectUtil::isFieldSelected($indexField, $params['select'])) {
  68     $params['select'][] = $indexField;
  69     $removeIndexField = TRUE;
  70   }
  71   $apiCall = \Civi\API\Request::create($entity, $action, ['version' => 4] + $params);
  72
  73   if ($index && is_array($index)) {
  74     $indexCol = reset($index);
  75     $indexField = key($index);
  76     if (property_exists($apiCall, 'select')) {
  77       $apiCall->setSelect([$indexCol]);
  78       if ($indexField && $indexField != $indexCol) {
  79         $apiCall->addSelect($indexField);
  80       }
  81     }
  82   }
  83
  84   $result = $apiCall->execute();
  85
  86   // Index results by key
  87   if ($indexField) {
  88     $result->indexBy($indexField);
  89     if ($removeIndexField) {
  90       foreach ($result as $key => $value) {
  91         unset($result[$key][$indexField]);
  92       }
  93     }
  94   }
  95   // Return result at index
  96   elseif (CRM_Utils_Rule::integer($index)) {
  97     $item = $result->itemAt($index);
  98     if (is_null($item)) {
  99       throw new \API_Exception("Index $index not found in api results");
 100     }
 101     // Attempt to return a Result object if item is array, otherwise just return the item
 102     if (!is_array($item)) {
 103       return $item;
 104     }
 105     $result->exchangeArray($item);
 106   }
 107   if (!empty($indexCol)) {
 108     $result->exchangeArray($result->column($indexCol));
 109   }
 110   return $result;
 111 }
 112
 113 /**
 114  * Version 3 wrapper for civicrm_api.
 115  *
 116  * Throws exception.
 117  *
 118  * @param string $entity
 119  *   Type of entities to deal with.
 120  * @param string $action
 121  *   Create, get, delete or some special action name.
 122  * @param array $params
 123  *   Array to be passed to function.
 124  *
 125  * @throws CiviCRM_API3_Exception
 126  *
 127  * @return array
 128  */
 129 function civicrm_api3(string $entity, string $action, array $params = []) {
 130   $params['version'] = 3;
 131   $result = \Civi::service('civi_api_kernel')->runSafe($entity, $action, $params);
 132   if (is_array($result) && !empty($result['is_error'])) {
 133     throw new CiviCRM_API3_Exception($result['error_message'], CRM_Utils_Array::value('error_code', $result, 'undefined'), $result);
 134   }
 135   return $result;
 136 }
 137
 138 /**
 139  * Call getfields from api wrapper.
 140  *
 141  * This function ensures that settings that
 142  * could alter getfields output (e.g. action for all api & profile_id for
 143  * profile api ) are consistently passed in.
 144  *
 145  * We check whether the api call is 'getfields' because if getfields is
 146  * being called we return an empty array as no alias swapping, validation or
 147  * default filling is done on getfields & we want to avoid a loop
 148  *
 149  * @todo other output modifiers include contact_type
 150  *
 151  * @param array $apiRequest
 152  *
 153  * @return array
 154  *   getfields output
 155  */
 156 function _civicrm_api3_api_getfields(&$apiRequest) {
 157   if (strtolower($apiRequest['action'] == 'getfields')) {
 158     // the main param getfields takes is 'action' - however this param is not compatible with REST
 159     // so we accept 'api_action' as an alias of action on getfields
 160     if (!empty($apiRequest['params']['api_action'])) {
 161       //  $apiRequest['params']['action'] = $apiRequest['params']['api_action'];
 162       // unset($apiRequest['params']['api_action']);
 163     }
 164     return ['action' => ['api.aliases' => ['api_action']]];
 165   }
 166   $getFieldsParams = ['action' => $apiRequest['action']];
 167   $entity = $apiRequest['entity'];
 168   if ($entity == 'Profile' && array_key_exists('profile_id', $apiRequest['params'])) {
 169     $getFieldsParams['profile_id'] = $apiRequest['params']['profile_id'];
 170   }
 171   $fields = civicrm_api3($entity, 'getfields', $getFieldsParams);
 172   return $fields['values'];
 173 }
 174
 175 /**
 176  * Check if the result is an error. Note that this function has been retained from
 177  * api v2 for convenience but the result is more standardised in v3 and param
 178  * 'format.is_success' => 1
 179  * will result in a boolean success /fail being returned if that is what you need.
 180  *
 181  * @param $result
 182  *
 183  * @return bool
 184  *   true if error, false otherwise
 185  */
 186 function civicrm_error($result) {
 187   if (is_array($result)) {
 188     return (array_key_exists('is_error', $result) &&
 189       $result['is_error']
 190     ) ? TRUE : FALSE;
 191   }
 192   return FALSE;
 193 }
 194
 195 /**
 196  * Get camel case version of entity name.
 197  *
 198  * @param string|null $entity
 199  *
 200  * @return string|null
 201  */
 202 function _civicrm_api_get_camel_name($entity) {
 203   return is_string($entity) ? CRM_Utils_String::convertStringToCamel($entity) : NULL;
 204 }
 205
 206 /**
 207  * Swap out any $values vars.
 208  *
 209  * Ie. the value after $value is swapped for the parent $result
 210  * 'activity_type_id' => '$value.testfield',
 211  * 'tag_id'  => '$value.api.tag.create.id',
 212  * 'tag1_id' => '$value.api.entity.create.0.id'
 213  *
 214  * @param array $params
 215  * @param array $parentResult
 216  * @param string $separator
 217  */
 218 function _civicrm_api_replace_variables(&$params, &$parentResult, $separator = '.') {
 219   foreach ($params as $field => &$value) {
 220     if (substr($field, 0, 4) == 'api.') {
 221       // CRM-21246 - Leave nested calls alone.
 222       continue;
 223     }
 224     if (is_string($value) && substr($value, 0, 6) == '$value') {
 225       $value = _civicrm_api_replace_variable($value, $parentResult, $separator);
 226     }
 227     // Handle the operator syntax: array('OP' => $val)
 228     elseif (is_array($value) && is_string(reset($value)) && substr(reset($value), 0, 6) == '$value') {
 229       $key = key($value);
 230       $value[$key] = _civicrm_api_replace_variable($value[$key], $parentResult, $separator);
 231       // A null value with an operator will cause an error, so remove it.
 232       if ($value[$key] === NULL) {
 233         $value = '';
 234       }
 235     }
 236   }
 237 }
 238
 239 /**
 240  * Swap out a $value.foo variable with the value from parent api results.
 241  *
 242  * Called by _civicrm_api_replace_variables to do the substitution.
 243  *
 244  * @param string $value
 245  * @param array $parentResult
 246  * @param string $separator
 247  * @return mixed|null
 248  */
 249 function _civicrm_api_replace_variable($value, $parentResult, $separator) {
 250   $valueSubstitute = substr($value, 7);
 251
 252   if (!empty($parentResult[$valueSubstitute])) {
 253     return $parentResult[$valueSubstitute];
 254   }
 255   else {
 256     $stringParts = explode($separator, $value);
 257     unset($stringParts[0]);
 258     // CRM-16168 If we have failed to swap it out we should unset it rather than leave the placeholder.
 259     $value = NULL;
 260
 261     $fieldname = array_shift($stringParts);
 262
 263     //when our string is an array we will treat it as an array from that . onwards
 264     $count = count($stringParts);
 265     while ($count > 0) {
 266       $fieldname .= "." . array_shift($stringParts);
 267       if (array_key_exists($fieldname, $parentResult) && is_array($parentResult[$fieldname])) {
 268         $arrayLocation = $parentResult[$fieldname];
 269         foreach ($stringParts as $key => $innerValue) {
 270           $arrayLocation = CRM_Utils_Array::value($innerValue, $arrayLocation);
 271         }
 272         $value = $arrayLocation;
 273       }
 274       $count = count($stringParts);
 275     }
 276   }
 277   return $value;
 278 }
 279
 280 /**
 281  * Convert possibly camel name to underscore separated entity name.
 282  *
 283  * @param string $entity
 284  *   Entity name in various formats e.g. Contribution, contribution,
 285  *   OptionValue, option_value, UFJoin, uf_join.
 286  *
 287  * @return string
 288  *   Entity name in underscore separated format.
 289  */
 290 function _civicrm_api_get_entity_name_from_camel($entity) {
 291   if (!$entity || $entity === strtolower($entity)) {
 292     return $entity;
 293   }
 294   elseif ($entity == 'PCP') {
 295     return 'pcp';
 296   }
 297   else {
 298     $entity = ltrim(strtolower(str_replace('U_F',
 299           'uf',
 300           // That's CamelCase, beside an odd UFCamel that is expected as uf_camel
 301           preg_replace('/(?=[A-Z])/', '_$0', $entity)
 302         )), '_');
 303   }
 304   return $entity;
 305 }
 306
 307 /**
 308  * Having a DAO object find the entity name.
 309  *
 310  * @param object $bao
 311  *   DAO being passed in.
 312  *
 313  * @return string
 314  */
 315 function _civicrm_api_get_entity_name_from_dao($bao) {
 316   $daoName = str_replace("BAO", "DAO", get_class($bao));
 317   return CRM_Core_DAO_AllCoreTables::getBriefName($daoName);
 318 }