371 lines
9.1 KiB
PHP
371 lines
9.1 KiB
PHP
<?php
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/**
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*
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* This class allows to consume the API, either from within a module that knows civicrm already:
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*
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* @code
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* require_once('api/class.api.php');
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* $api = new civicrm_api3();
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* @endcode
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*
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* or from any code on the same server as civicrm
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*
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* @code
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* require_once('/your/civi/folder/api/class.api.php');
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* // the path to civicrm.settings.php
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* $api = new civicrm_api3 (array('conf_path'=> '/your/path/to/your/civicrm/or/joomla/site));
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* @endcode
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*
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* or to query a remote server via the rest api
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*
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* @code
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* $api = new civicrm_api3 (array ('server' => 'http://example.org',
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* 'api_key'=>'theusersecretkey',
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* 'key'=>'thesitesecretkey'));
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* @endcode
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*
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* No matter how initialised and if civicrm is local or remote, you use the class the same way.
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*
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* @code
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* $api->{entity}->{action}($params);
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* @endcode
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*
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* So, to get the individual contacts:
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*
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* @code
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* if ($api->Contact->Get(array('contact_type'=>'Individual','return'=>'sort_name,current_employer')) {
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* // each key of the result array is an attribute of the api
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* echo "\n contacts found " . $api->count;
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* foreach ($api->values as $c) {
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* echo "\n".$c->sort_name. " working for ". $c->current_employer;
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* }
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* // in theory, doesn't append
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* } else {
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* echo $api->errorMsg();
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* }
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* @endcode
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*
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* Or, to create an event:
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*
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* @code
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* if ($api->Event->Create(array('title'=>'Test','event_type_id' => 1,'is_public' => 1,'start_date' => 19430429))) {
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* echo "created event id:". $api->id;
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* } else {
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* echo $api->errorMsg();
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* }
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* @endcode
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*
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* To make it easier, the Actions can either take for input an
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* associative array $params, or simply an id. The following two lines
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* are equivalent.
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*
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* @code
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* $api->Activity->Get (42);
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* $api->Activity->Get (array('id'=>42));
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* @endcode
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*
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*
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* You can also get the result like civicrm_api does, but as an object
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* instead of an array (eg $entity->attribute instead of
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* $entity['attribute']).
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*
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* @code
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* $result = $api->result;
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* // is the json encoded result
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* echo $api;
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* @endcode
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*/
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class civicrm_api3 {
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/**
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* Class constructor.
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*
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* @param array $config API configuration.
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*/
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public function __construct($config = NULL) {
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$this->local = TRUE;
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$this->input = array();
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$this->lastResult = array();
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if (isset($config) && isset($config['server'])) {
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// we are calling a remote server via REST
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$this->local = FALSE;
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$this->uri = $config['server'];
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if (isset($config['path'])) {
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$this->uri .= "/" . $config['path'];
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}
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else {
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$this->uri .= '/sites/all/modules/civicrm/extern/rest.php';
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}
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if (isset($config['key'])) {
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$this->key = $config['key'];
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}
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else {
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die("\nFATAL:param['key] missing\n");
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}
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if (isset($config['api_key'])) {
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$this->api_key = $config['api_key'];
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}
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else {
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die("\nFATAL:param['api_key] missing\n");
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}
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return;
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}
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if (isset($config) && isset($config['conf_path'])) {
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if (!defined('CIVICRM_SETTINGS_PATH')) {
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define('CIVICRM_SETTINGS_PATH', $config['conf_path'] . '/civicrm.settings.php');
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}
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require_once CIVICRM_SETTINGS_PATH;
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require_once 'CRM/Core/ClassLoader.php';
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require_once 'api/api.php';
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require_once "api/v3/utils.php";
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CRM_Core_ClassLoader::singleton()->register();
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$this->cfg = CRM_Core_Config::singleton();
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$this->init();
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}
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else {
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$this->cfg = CRM_Core_Config::singleton();
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}
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}
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/**
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* Convert to string.
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*
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* @return string
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*/
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public function __toString() {
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return json_encode($this->lastResult);
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}
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/**
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* Perform action.
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*
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* @param $action
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* @param $params
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*
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* @return bool
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*/
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public function __call($action, $params) {
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// @TODO Check if it's a valid action.
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if (isset($params[0])) {
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return $this->call($this->currentEntity, $action, $params[0]);
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}
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else {
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return $this->call($this->currentEntity, $action, $this->input);
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}
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}
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/**
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* Call via rest.
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*
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* @param $entity
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* @param $action
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* @param array $params
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*
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* @return \stdClass
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*/
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private function remoteCall($entity, $action, $params = array()) {
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$query = $this->uri . "?entity=$entity&action=$action";
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$fields = http_build_query(array(
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'key' => $this->key,
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'api_key' => $this->api_key,
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'json' => json_encode($params),
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));
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if (function_exists('curl_init')) {
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// To facilitate debugging without leaking info, entity & action
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// are GET, other data is POST.
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$ch = curl_init();
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curl_setopt($ch, CURLOPT_URL, $query);
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curl_setopt($ch, CURLOPT_POST, TRUE);
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curl_setopt($ch, CURLOPT_POSTFIELDS, $fields);
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
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$result = curl_exec($ch);
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// CiviCRM expects to get back a CiviCRM error object.
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if (curl_errno($ch)) {
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$res = new stdClass();
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$res->is_error = 1;
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$res->error_message = curl_error($ch);
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$res->level = "cURL";
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$res->error = array('cURL error' => curl_error($ch));
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return $res;
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}
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curl_close($ch);
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}
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else {
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// Should be discouraged, because the API credentials and data
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// are submitted as GET data, increasing chance of exposure..
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$result = file_get_contents($query . '&' . $fields);
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}
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if (!$res = json_decode($result)) {
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$res = new stdClass();
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$res->is_error = 1;
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$res->error_message = 'Unable to parse returned JSON';
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$res->level = 'json_decode';
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$res->error = array('Unable to parse returned JSON' => $result);
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$res->row_result = $result;
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}
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return $res;
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}
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/**
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* Call api function.
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*
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* @param $entity
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* @param string $action
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* @param array $params
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*
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* @return bool
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*/
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private function call($entity, $action = 'Get', $params = array()) {
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if (is_int($params)) {
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$params = array('id' => $params);
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}
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elseif (is_string($params)) {
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$params = json_decode($params);
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}
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if (!isset($params['version'])) {
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$params['version'] = 3;
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}
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if (!isset($params['sequential'])) {
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$params['sequential'] = 1;
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}
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if (!$this->local) {
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$this->lastResult = $this->remoteCall($entity, $action, $params);
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}
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else {
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// Converts a multi-dimentional array into an object.
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$this->lastResult = json_decode(json_encode(civicrm_api($entity, $action, $params)));
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}
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// Reset the input to be ready for a new call.
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$this->input = array();
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if (property_exists($this->lastResult, 'is_error')) {
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return !$this->lastResult->is_error;
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}
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// getsingle doesn't have is_error.
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return TRUE;
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}
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/**
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* Helper method for long running programs (eg bots).
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*/
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public function ping() {
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global $_DB_DATAOBJECT;
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foreach ($_DB_DATAOBJECT['CONNECTIONS'] as & $c) {
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if (!$c->connection->ping()) {
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$c->connect($this->cfg->dsn);
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if (!$c->connection->ping()) {
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die("we couldn't connect");
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}
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}
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}
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}
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/**
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* Return the last error message.
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* @return string
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*/
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public function errorMsg() {
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return $this->lastResult->error_message;
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}
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/**
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* Initialize.
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*/
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public function init() {
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CRM_Core_DAO::init($this->cfg->dsn);
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}
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/**
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* Get attribute.
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*
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* @param $name
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* @param null $value
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*
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* @return $this
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*/
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public function attr($name, $value = NULL) {
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if ($value === NULL) {
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if (property_exists($this->lastResult, $name)) {
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return $this->lastResult->$name;
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}
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}
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else {
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$this->input[$name] = $value;
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}
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return $this;
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}
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/**
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* Is this an error.
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*
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* @return bool
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*/
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public function is_error() {
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return (property_exists($this->lastResult, 'is_error') && $this->lastResult->is_error);
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}
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/**
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* Check if var is set.
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*
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* @param string $name
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*
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* @return bool
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*/
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public function is_set($name) {
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return (isset($this->lastResult->$name));
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}
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/**
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* Get object.
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*
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* @param string $name
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*
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* @return $this
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*/
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public function __get($name) {
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// @TODO Test if valid entity.
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if (strtolower($name) !== $name) {
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// Cheap and dumb test to differentiate call to
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// $api->Entity->Action & value retrieval.
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$this->currentEntity = $name;
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return $this;
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}
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if ($name === 'result') {
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return $this->lastResult;
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}
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if ($name === 'values') {
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return $this->lastResult->values;
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}
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if (property_exists($this->lastResult, $name)) {
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return $this->lastResult->$name;
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}
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$this->currentEntity = $name;
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return $this;
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}
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/**
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* Or use $api->value.
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* @return array
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*/
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public function values() {
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if (is_array($this->lastResult)) {
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return $this->lastResult['values'];
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}
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else {
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return $this->lastResult->values;
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}
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}
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/**
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* Or use $api->result.
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* @return array
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*/
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public function result() {
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return $this->lastResult;
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}
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}
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