PHP CRM_Core_Transaction类代码示例

 function add_participant_to_cart()
 {
     require 'CRM/Core/Transaction.php';
     $transaction = new CRM_Core_Transaction();
     $cart_id = $_GET['cart_id'];
     $event_id = $_GET['event_id'];
     $cart = CRM_Event_Cart_BAO_Cart::find_by_id($_GET['cart_id']);
     $params_array = array('cart_id' => $cart->id, 'contact_id' => CRM_Event_Cart_Form_Cart::find_or_create_contact(), 'event_id' => $event_id);
     //XXX security?
     $participant = CRM_Event_Cart_BAO_MerParticipant::create($params_array);
     $participant->save();
     $form = new CRM_Core_Form();
     $pform = new CRM_Event_Cart_Form_MerParticipant($participant);
     $pform->appendQuickForm($form);
     $renderer = $form->getRenderer();
     $config = CRM_Core_Config::singleton();
     $templateDir = $config->templateDir;
     if (is_array($templateDir)) {
         $templateDir = array_pop($templateDir);
     }
     $requiredTemplate = file_get_contents($templateDir . '/CRM/Form/label.tpl');
     $renderer->setRequiredTemplate($requiredTemplate);
     $form->accept($renderer);
     $template = CRM_Core_Smarty::singleton();
     $template->assign('form', $renderer->toArray());
     $template->assign('participant', $participant);
     $output = $template->fetch("CRM/Event/Cart/Form/Checkout/Participant.tpl");
     $transaction->commit();
     echo $output;
     CRM_Utils_System::civiExit();
 }

 /**
  * takes an associative array and creates a price field object
  *
  * This function is invoked from within the web form layer and also from the api layer
  *
  * @param array $params (reference) an assoc array of name/value pairs
  *
  * @return object CRM_Price_DAO_PriceField object
  * @access public
  * @static
  */
 static function create(&$params)
 {
     if (empty($params['id']) && empty($params['name'])) {
         $params['name'] = strtolower(CRM_Utils_String::munge($params['label'], '_', 242));
     }
     $transaction = new CRM_Core_Transaction();
     $priceField = self::add($params);
     if (is_a($priceField, 'CRM_Core_Error')) {
         $transaction->rollback();
         return $priceField;
     }
     $optionsIds = array();
     $maxIndex = CRM_Price_Form_Field::NUM_OPTION;
     if ($priceField->html_type == 'Text') {
         $maxIndex = 1;
         $fieldValue = new CRM_Price_DAO_PriceFieldValue();
         $fieldValue->price_field_id = $priceField->id;
         // update previous field values( if any )
         if ($fieldValue->find(TRUE)) {
             $optionsIds['id'] = $fieldValue->id;
         }
     }
     $defaultArray = array();
     //html type would be empty in update scenario not sure what would happen ...
     if (!empty($params['html_type']) && $params['html_type'] == 'CheckBox' && isset($params['default_checkbox_option'])) {
         $tempArray = array_keys($params['default_checkbox_option']);
         foreach ($tempArray as $v) {
             if ($params['option_amount'][$v]) {
                 $defaultArray[$v] = 1;
             }
         }
     } else {
         if (!empty($params['default_option'])) {
             $defaultArray[$params['default_option']] = 1;
         }
     }
     for ($index = 1; $index <= $maxIndex; $index++) {
         if (array_key_exists('option_amount', $params) && array_key_exists($index, $params['option_amount']) && (CRM_Utils_Array::value($index, CRM_Utils_Array::value('option_label', $params)) || !empty($params['is_quick_config'])) && !CRM_Utils_System::isNull($params['option_amount'][$index])) {
             $options = array('price_field_id' => $priceField->id, 'label' => trim($params['option_label'][$index]), 'name' => CRM_Utils_String::munge($params['option_label'][$index], '_', 64), 'amount' => CRM_Utils_Rule::cleanMoney(trim($params['option_amount'][$index])), 'count' => CRM_Utils_Array::value($index, CRM_Utils_Array::value('option_count', $params), NULL), 'max_value' => CRM_Utils_Array::value($index, CRM_Utils_Array::value('option_max_value', $params), NULL), 'description' => CRM_Utils_Array::value($index, CRM_Utils_Array::value('option_description', $params), NULL), 'membership_type_id' => CRM_Utils_Array::value($index, CRM_Utils_Array::value('membership_type_id', $params), NULL), 'weight' => $params['option_weight'][$index], 'is_active' => 1, 'is_default' => CRM_Utils_Array::value($params['option_weight'][$index], $defaultArray) ? $defaultArray[$params['option_weight'][$index]] : 0, 'membership_num_terms' => NULL);
             if ($options['membership_type_id']) {
                 $options['membership_num_terms'] = CRM_Utils_Array::value($index, CRM_Utils_Array::value('membership_num_terms', $params), 1);
             }
             if (CRM_Utils_Array::value($index, CRM_Utils_Array::value('option_financial_type_id', $params))) {
                 $options['financial_type_id'] = $params['option_financial_type_id'][$index];
             } elseif (!empty($params['financial_type_id'])) {
                 $options['financial_type_id'] = $params['financial_type_id'];
             }
             if ($opIds = CRM_Utils_Array::value('option_id', $params)) {
                 if ($opId = CRM_Utils_Array::value($index, $opIds)) {
                     $optionsIds['id'] = $opId;
                 } else {
                     $optionsIds['id'] = NULL;
                 }
             }
             CRM_Price_BAO_PriceFieldValue::create($options, $optionsIds);
         }
     }
     $transaction->commit();
     return $priceField;
 }

/**
 * Add or update a link between contribution and membership
 *
 * @param  array   $params           (reference ) input parameters
 *
 * @return array (reference )        membership_payment_id of created or updated record
 * @static void
 * @access public
 */
function &civicrm_membershipcontributionlink_create(&$params)
{
    _civicrm_initialize();
    if (empty($params)) {
        return civicrm_create_error(ts('No input parameters present'));
    }
    if (!is_array($params)) {
        return civicrm_create_error(ts('Input parameters is not an array'));
    }
    if (!isset($params['contribution_id']) || !isset($params['membership_id'])) {
        return civicrm_create_error(ts('Required parameters missing'));
    }
    require_once 'CRM/Core/Transaction.php';
    $transaction = new CRM_Core_Transaction();
    require_once 'CRM/Member/DAO/MembershipPayment.php';
    $mpDAO =& new CRM_Member_DAO_MembershipPayment();
    $mpDAO->copyValues($params);
    $result = $mpDAO->save();
    if (is_a($result, 'CRM_Core_Error')) {
        $transaction->rollback();
        return civicrm_create_error($result->_errors[0]['message']);
    }
    $transaction->commit();
    _civicrm_object_to_array($mpDAO, $mpArray);
    return $mpArray;
}

/**
 * Create a new domain - with a domain group.
 *
 * This is not fully developed & need to work on creating admin menus etc
 *
 * @param array $params
 *
 * @return array
 * @example DomainCreate.php
 * {@getfields domain_create}
 */
function civicrm_api3_multisite_domain_create($params)
{
    $transaction = new CRM_Core_Transaction();
    if (empty($params['contact_id'])) {
        $params['contact_id'] = _civicrm_api3_multisite_domain_create_if_not_exists('Contact', array('organization_name' => $params['name'], 'contact_type' => 'organization'));
    }
    $domain = civicrm_api('domain', 'getsingle', array('version' => 3, 'current_domain' => TRUE));
    $fullParams = array_merge($domain, $params);
    $fullParams['domain_version'] = $domain['version'];
    $fullParams['version'] = 3;
    unset($fullParams['id']);
    if (empty($params['group_id'])) {
        $groupParams = array('title' => !empty($params['group_name']) ? $params['group_name'] : $params['name']);
        $group = civicrm_api3('Group', 'get', array_merge($groupParams, array('options' => array('limit' => 1))));
        if (empty($group['id'])) {
            // Ideally would fix the api to be more consistent & not assume default but...
            $groupParams['group_type'] = array(1 => 1);
            $group = civicrm_api3('Group', 'create', $groupParams);
        }
        $domainGroupID = $group['id'];
    } else {
        $domainGroupID = $params['group_id'];
    }
    _civicrm_api3_multisite_domain_create_if_not_exists('GroupOrganization', array('group_id' => $domainGroupID, 'organization_id' => $params['contact_id']));
    $domainID = _civicrm_api3_multisite_domain_create_if_not_exists('domain', $fullParams);
    if (!$domainID || $domainID != civicrm_api3('Domain', 'getvalue', array('name' => $params['name'], 'return' => 'id'))) {
        throw new CiviCRM_API3_Exception('Failed to create domain', 'unknown');
    }
    $transaction->commit();
    if (!civicrm_api3('Navigation', 'getcount', array('domain_id' => $domainID))) {
        _civicrm_load_navigation($params['name'], $domainID);
    }
    civicrm_api3('Setting', 'create', array('is_enabled' => TRUE, 'domain_group_id' => $domainGroupID, 'domain_id' => $domainID));
    return civicrm_api3_create_success(array($domainID => array('id' => $domainID)));
}

function ndiciviparty_add_default_dashboard($contactid)
{
    $result = civicrm_api3('Dashboard', 'get', array('name' => "contact_per_month"));
    $exists = 0;
    $dashletid = 0;
    if ($result['count'] > 0) {
        $dashletid = $result['id'];
        $result = civicrm_api3('DashboardContact', 'get', array('contact_id' => $contactid, 'return' => array("dashboard_id", "contact_id")));
        if ($result['count'] > 0) {
            foreach ($result['values'] as $key => $value) {
                if ($value['dashboard_id'] == $dashletid) {
                    $exists = 1;
                }
            }
        }
        if ($exists != 1) {
            $tx = new CRM_Core_Transaction();
            $dashlet = array('dashboard_id' => $dashletid, 'contact_id' => $contactid, 'is_active' => 1, 'column_no' => 0, 'is_minimized' => 0, 'is_fullscreen' => 0, 'weight' => 0);
            try {
                $add = civicrm_api3('DashboardContact', 'create', $dashlet);
            } catch (CiviCRM_API3_Exception $e) {
                $tx->rollback();
                echo get_class($e) . ' -- ' . $e->getMessage() . "\n";
                echo $e->getTraceAsString() . "\n";
                print_r($e->getExtraParams());
            }
        }
        //end if exists
    }
    //end if dashlet found
}

 function postProcess()
 {
     $values = $this->exportValues();
     $title = str_replace("'", "''", $values['title']);
     $params = array(1 => array($title, 'String'), 2 => array($values['widget'], 'Integer'));
     if (isset($this->_id)) {
         $params += array(3 => array($this->_id, 'Integer'));
         $sql = "UPDATE civicrm_wci_embed_code SET name = %1, widget_id = %2 where id = %3";
     } else {
         $sql = "INSERT INTO civicrm_wci_embed_code (name, widget_id)VALUES (%1, %2)";
     }
     $errorScope = CRM_Core_TemporaryErrorScope::useException();
     try {
         $transaction = new CRM_Core_Transaction();
         CRM_Core_DAO::executeQuery($sql, $params);
         $transaction->commit();
         CRM_Core_Session::setStatus(ts('Embed code created successfully'), '', 'success');
         if (isset($_REQUEST['_qf_NewEmbedCode_next'])) {
             isset($this->_id) ? $embed_id = $this->_id : ($embed_id = CRM_Core_DAO::singleValueQuery('SELECT LAST_INSERT_ID()'));
             CRM_Utils_System::redirect('?action=update&reset=1&id=' . $embed_id);
         } else {
             CRM_Utils_System::redirect('embed-code?reset=1');
         }
     } catch (Exception $e) {
         CRM_Core_Session::setStatus(ts('Failed to create embed code'), '', 'error');
         $transaction->rollback();
     }
     parent::postProcess();
 }

/**
 * PriceSet.FetchSection API
 *
 * @param array $params
 * @return array API result descriptor
 * @see civicrm_api3_create_success
 * @see civicrm_api3_create_error
 * @throws API_Exception
 */
function civicrm_api3_workflow_save($params)
{
    if (!array_key_exists("data", $params) || !$params['data']) {
        throw new API_Exception('Missing parameter: data', 170);
    }
    if (!array_key_exists("wid", $params) || !$params['wid']) {
        throw new API_Exception('Missing parameter: wid', 170);
    }
    $wid = $params['wid'];
    $d = urldecode($params['data']);
    $data = parse_str($d);
    //I don't know why this is important, but it made things work.
    $try2 = parse_str($params['data']);
    //Hook in case someone wants to alter the data
    CRM_Workflow_hook::beforeSave($wid, $data);
    $transaction = new CRM_Core_Transaction();
    $dsql = "DELETE FROM civicrm_workflow_detail WHERE workflow_id = {$wid}";
    $dao =& CRM_Core_DAO::executeQuery($dsql);
    if (!empty($data)) {
        $sql = "INSERT INTO civicrm_workflow_detail ( workflow_id, entity_table, entity_id, `order`, breadcrumb, `next`, title) VALUES ";
        $i = 1;
        $vals = array();
        foreach ($data as $key => $d) {
            //$did = (strpos($id, ":")) ? 0 : $id;
            $eid = $d['entity_id'];
            $e_type = $d['entity_table'];
            $order = $d['order'];
            $breadcrumb = $d['breadcrumb'];
            $next = $d['next'];
            $title = $d['title'];
            $sql = $sql . "( %" . ($i + 0) . ", %" . ($i + 1) . ", %" . ($i + 2) . ", %" . ($i + 3) . ", %" . ($i + 4) . ", %" . ($i + 5) . ", %" . ($i + 6) . "),";
            //$vals[$i++] = array($did, 'Integer');
            $vals[$i++] = array($wid, 'Integer');
            $vals[$i++] = array($e_type, 'String');
            $vals[$i++] = array($eid, 'String');
            $vals[$i++] = array($order, 'Integer');
            $vals[$i++] = array($breadcrumb, 'String');
            $vals[$i++] = array($next, 'String');
            $vals[$i++] = array($title, 'String');
        }
        $sql = substr($sql, 0, -1);
        try {
            $dao =& CRM_Core_DAO::executeQuery($sql, $vals);
        } catch (Exception $e) {
            $transaction->rollback();
            return civicrm_api3_create_error($e . message);
        }
        //TODO: Better error checking?
        if ($dao->_lastError) {
            $transaction->rollback();
        } else {
            $transaction->commit();
            CRM_Workflow_hook::afterSave($wid, $data);
        }
    }
    $returnValues = array();
    return civicrm_api3_create_success($returnValues, $params, 'PriceSet', 'FetchSection');
}

 function run()
 {
     // get the requested action
     $action = CRM_Utils_Request::retrieve('action', 'String', $this, FALSE, 'browse');
     // assign vars to templates
     $this->assign('action', $action);
     $id = CRM_Utils_Request::retrieve('id', 'Positive', $this, FALSE, 0);
     if ($action & CRM_Core_Action::UPDATE) {
         $controller = new CRM_Core_Controller_Simple('CRM_Wci_Form_ProgressBar', 'Edit Progressbar', CRM_Core_Action::UPDATE);
         $controller->set('id', $id);
         $controller->process();
         return $controller->run();
     } elseif ($action & CRM_Core_Action::COPY) {
         try {
             $sql = "INSERT INTO civicrm_wci_progress_bar (name, starting_amount, goal_amount)\n        SELECT concat(name, '-', (SELECT MAX(id) FROM civicrm_wci_progress_bar)),\n        starting_amount, goal_amount FROM civicrm_wci_progress_bar\n        WHERE id=%1";
             CRM_Core_DAO::executeQuery($sql, array(1 => array($id, 'Integer')));
             $new_pb_id = CRM_Core_DAO::singleValueQuery('SELECT LAST_INSERT_ID()');
             $sql = "INSERT INTO civicrm_wci_progress_bar_formula\n            (contribution_page_id, financial_type_id, progress_bar_id, start_date, end_date, percentage)\n            SELECT contribution_page_id, financial_type_id, %1, start_date,\n            end_date, percentage FROM civicrm_wci_progress_bar_formula WHERE progress_bar_id=%2";
             CRM_Core_DAO::executeQuery($sql, array(1 => array($new_pb_id, 'Integer'), 2 => array($id, 'Integer')));
         } catch (Exception $e) {
             CRM_Core_Session::setStatus(ts('Failed to create Progress bar. ') . $e->getMessage(), '', 'error');
             $transaction->rollback();
         }
     } elseif ($action & CRM_Core_Action::DELETE) {
         $errorScope = CRM_Core_TemporaryErrorScope::useException();
         try {
             $transaction = new CRM_Core_Transaction();
             $sql = "DELETE FROM civicrm_wci_progress_bar_formula where progress_bar_id = %1";
             $params = array(1 => array($id, 'Integer'));
             CRM_Core_DAO::executeQuery($sql, $params);
             $sql = "DELETE FROM civicrm_wci_progress_bar where id = %1";
             $params = array(1 => array($id, 'Integer'));
             CRM_Core_DAO::executeQuery($sql, $params);
             $transaction->commit();
         } catch (Exception $e) {
             $errmgs = $e->getMessage() . ts('. Check whether progressbar is used by any widget or not');
             CRM_Core_Session::setStatus($errmgs, '', 'error');
             $transaction->rollback();
         }
     }
     // Example: Set the page-title dynamically; alternatively, declare a static title in xml/Menu/*.xml
     CRM_Utils_System::setTitle(ts('Progress Bar List'));
     $query = "SELECT * FROM civicrm_wci_progress_bar";
     $params = array();
     $dao = CRM_Core_DAO::executeQuery($query, $params, TRUE, 'CRM_Wci_DAO_ProgressBar');
     while ($dao->fetch()) {
         $con_page[$dao->id] = array();
         CRM_Core_DAO::storeValues($dao, $con_page[$dao->id]);
         $action = array_sum(array_keys($this->actionLinks()));
         //build the normal action links.
         $con_page[$dao->id]['action'] = CRM_Core_Action::formLink(self::actionLinks(), $action, array('id' => $dao->id));
     }
     if (isset($con_page)) {
         $this->assign('rows', $con_page);
     }
     return parent::run();
 }

 function run()
 {
     $transaction = new CRM_Core_Transaction();
     $cart = CRM_Event_Cart_BAO_Cart::find_or_create_for_current_session();
     $cart->load_associations();
     $this->assign_by_ref('events_in_carts', $cart->get_main_events_in_carts());
     $this->assign('events_count', count($cart->get_main_events_in_carts()));
     $transaction->commit();
     return parent::run();
 }

 /**
  * @param array $params
  *
  * @return $this
  * @throws Exception
  */
 public static function create($params)
 {
     $transaction = new CRM_Core_Transaction();
     $cart = self::add($params);
     if (is_a($cart, 'CRM_Core_Error')) {
         $transaction->rollback();
         CRM_Core_Error::fatal(ts('There was an error creating an event cart'));
     }
     $transaction->commit();
     return $cart;
 }

 /**
  * Confirm a pending subscription
  *
  * @param int $contact_id       The id of the contact
  * @param int $subscribe_id     The id of the subscription event
  * @param string $hash          The hash
  *
  * @return boolean              True on success
  * @access public
  * @static
  */
 public static function confirm($contact_id, $subscribe_id, $hash)
 {
     $se =& CRM_Mailing_Event_BAO_Subscribe::verify($contact_id, $subscribe_id, $hash);
     if (!$se) {
         return FALSE;
     }
     // before we proceed lets just check if this contact is already 'Added'
     // if so, we should ignore this request and hence avoid sending multiple
     // emails - CRM-11157
     $details = CRM_Contact_BAO_GroupContact::getMembershipDetail($contact_id, $se->group_id);
     if ($details && $details->status == 'Added') {
         // This contact is already subscribed
         // lets return the group title
         return CRM_Core_DAO::getFieldValue('CRM_Contact_DAO_Group', $se->group_id, 'title');
     }
     $transaction = new CRM_Core_Transaction();
     $ce = new CRM_Mailing_Event_BAO_Confirm();
     $ce->event_subscribe_id = $se->id;
     $ce->time_stamp = date('YmdHis');
     $ce->save();
     CRM_Contact_BAO_GroupContact::addContactsToGroup(array($contact_id), $se->group_id, 'Email', 'Added', $ce->id);
     $transaction->commit();
     $config = CRM_Core_Config::singleton();
     $domain = CRM_Core_BAO_Domain::getDomain();
     list($domainEmailName, $_) = CRM_Core_BAO_Domain::getNameAndEmail();
     list($display_name, $email) = CRM_Contact_BAO_Contact_Location::getEmailDetails($se->contact_id);
     $group = new CRM_Contact_DAO_Group();
     $group->id = $se->group_id;
     $group->find(TRUE);
     $component = new CRM_Mailing_BAO_Component();
     $component->is_default = 1;
     $component->is_active = 1;
     $component->component_type = 'Welcome';
     $component->find(TRUE);
     $emailDomain = CRM_Core_BAO_MailSettings::defaultDomain();
     $html = $component->body_html;
     if ($component->body_text) {
         $text = $component->body_text;
     } else {
         $text = CRM_Utils_String::htmlToText($component->body_html);
     }
     $bao = new CRM_Mailing_BAO_Mailing();
     $bao->body_text = $text;
     $bao->body_html = $html;
     $tokens = $bao->getTokens();
     $html = CRM_Utils_Token::replaceDomainTokens($html, $domain, TRUE, $tokens['html']);
     $html = CRM_Utils_Token::replaceWelcomeTokens($html, $group->title, TRUE);
     $text = CRM_Utils_Token::replaceDomainTokens($text, $domain, FALSE, $tokens['text']);
     $text = CRM_Utils_Token::replaceWelcomeTokens($text, $group->title, FALSE);
     $mailParams = array('groupName' => 'Mailing Event ' . $component->component_type, 'subject' => $component->subject, 'from' => "\"{$domainEmailName}\" <do-not-reply@{$emailDomain}>", 'toEmail' => $email, 'toName' => $display_name, 'replyTo' => "do-not-reply@{$emailDomain}", 'returnPath' => "do-not-reply@{$emailDomain}", 'html' => $html, 'text' => $text);
     // send - ignore errors because the desired status change has already been successful
     $unused_result = CRM_Utils_Mail::send($mailParams);
     return $group->title;
 }

 static function &create(&$params)
 {
     require_once 'CRM/Core/Transaction.php';
     $transaction = new CRM_Core_Transaction();
     $statusType = self::add($params);
     if (is_a($statusType, 'CRM_Core_Error')) {
         $transaction->rollback();
         return $statusType;
     }
     $transaction->commit();
     return $statusType;
 }

 function run()
 {
     // get the requested action
     $action = CRM_Utils_Request::retrieve('action', 'String', $this, FALSE, 'browse');
     // assign vars to templates
     $this->assign('action', $action);
     $id = CRM_Utils_Request::retrieve('id', 'Positive', $this, FALSE, 0);
     if ($action & CRM_Core_Action::UPDATE) {
         $controller = new CRM_Core_Controller_Simple('CRM_Wci_Form_CreateWidget', 'Edit Widget', CRM_Core_Action::UPDATE);
         $controller->set('id', $id);
         $controller->process();
         return $controller->run();
     } elseif ($action & CRM_Core_Action::COPY) {
         try {
             $sql = "INSERT INTO civicrm_wci_widget (title, logo_image, image,\n        button_title, button_link_to, progress_bar_id, description,\n        email_signup_group_id, size_variant, color_title, color_title_bg,\n        color_progress_bar, color_progress_bar_bg, color_widget_bg, color_description, color_border,\n        color_button, color_button_bg, hide_title, hide_border, hide_pbcap,\n        color_btn_newsletter, color_btn_newsletter_bg, newsletter_text,\n        color_newsletter_text, style_rules, override, custom_template, show_pb_perc)\n        SELECT concat(title, '-', (SELECT MAX(id) FROM civicrm_wci_widget)), logo_image, image,\n        button_title, button_link_to, progress_bar_id, description,\n        email_signup_group_id, size_variant, color_title, color_title_bg,\n        color_progress_bar, color_progress_bar_bg, color_widget_bg, color_description, color_border,\n        color_button, color_button_bg, hide_title, hide_border, hide_pbcap,\n        color_btn_newsletter, color_btn_newsletter_bg, newsletter_text,\n        color_newsletter_text, style_rules, override, custom_template, show_pb_perc FROM civicrm_wci_widget WHERE id=%1";
             CRM_Core_DAO::executeQuery("SET foreign_key_checks = 0;");
             CRM_Core_DAO::executeQuery($sql, array(1 => array($id, 'Integer')));
             CRM_Core_DAO::executeQuery("SET foreign_key_checks = 1;");
         } catch (Exception $e) {
             CRM_Core_Session::setStatus(ts('Failed to create widget. ') . $e->getMessage(), '', 'error');
             $transaction->rollback();
         }
     } elseif ($action & CRM_Core_Action::DELETE) {
         try {
             $transaction = new CRM_Core_Transaction();
             $sql = "DELETE FROM civicrm_wci_widget where id = %1";
             $params = array(1 => array($id, 'Integer'));
             CRM_Core_DAO::executeQuery($sql, $params);
             $transaction->commit();
         } catch (Exception $e) {
             CRM_Core_Session::setStatus(ts('Failed to delete widget. ') . $e->getMessage(), '', 'error');
             $transaction->rollback();
         }
     }
     CRM_Utils_System::setTitle(ts('Widget List'));
     $query = "SELECT * FROM civicrm_wci_widget";
     $params = array();
     $dao = CRM_Core_DAO::executeQuery($query, $params, TRUE, 'CRM_Wci_DAO_Widget');
     while ($dao->fetch()) {
         $wid_page[$dao->id] = array();
         CRM_Core_DAO::storeValues($dao, $wid_page[$dao->id]);
         $wid_page[$dao->id]['title'] = $wid_page[$dao->id]['title'];
         $description = $wid_page[$dao->id]['description'];
         $wid_page[$dao->id]['description'] = strip_tags($description);
         $action = array_sum(array_keys($this->actionLinks()));
         //build the normal action links.
         $wid_page[$dao->id]['action'] = CRM_Core_Action::formLink(self::actionLinks(), $action, array('id' => $dao->id));
     }
     if (isset($wid_page)) {
         $this->assign('rows', $wid_page);
     }
     parent::run();
 }

 function stub_out_and_inherit()
 {
     $transaction = new CRM_Core_Transaction();
     foreach ($this->cart->get_main_events_in_carts() as $event_in_cart) {
         if (empty($event_in_cart->participants)) {
             $participant = CRM_Event_Cart_BAO_MerParticipant::create(array('cart_id' => $this->cart->id, 'event_id' => $event_in_cart->event_id, 'contact_id' => self::find_or_create_contact($this->getContactID())));
             $participant->save();
             $event_in_cart->add_participant($participant);
         }
         $event_in_cart->save();
     }
     $transaction->commit();
 }

 /**
  * @param array $params
  *
  * @return object $this|CRM_Event_Cart_BAO_EventInCart
  * @throws Exception
  */
 public static function create(&$params)
 {
     $transaction = new CRM_Core_Transaction();
     $event_in_cart = new CRM_Event_Cart_BAO_EventInCart();
     $event_in_cart->copyValues($params);
     $event_in_cart = $event_in_cart->save();
     if (is_a($event_in_cart, 'CRM_Core_Error')) {
         $transaction->rollback();
         CRM_Core_Error::fatal(ts('There was an error creating an event_in_cart'));
     }
     $transaction->commit();
     return $event_in_cart;
 }