✨️ implement validation of TwingleProject settings

CRM/TwingleCampaign/BAO/Campaign.php

@@ -33,7 +33,7 @@ abstract class CRM_TwingleCampaign_BAO_Campaign {
    * @param array $values
    * @param int|null $id
    */
-  protected function __construct(array $values, int $id = NULL) {
+  protected function __construct(array $values = [], int $id = NULL) {
 
     $this->id = $id;
     $tmpClassName = explode('_', get_class($this));

CRM/TwingleCampaign/BAO/TwingleApiCall.php

@@ -129,10 +129,14 @@ class CRM_TwingleCampaign_BAO_TwingleApiCall {
    */
   public function pushProject(array $project): array {
 
+    if (isset($project['project_options'])) {
       $projectOptions = $project['project_options'];
       unset($project['project_options']);
+    }
+    if (isset($project['payment_methods'])) {
       $paymentMethods = $project['payment_methods'];
       unset($project['payment_methods']);
+    }
 
     try {
       if (!isset($project['id'])) {
@@ -153,14 +157,22 @@ class CRM_TwingleCampaign_BAO_TwingleApiCall {
       }
 
       // Post project_options
+      if (isset($projectOptions)) {
         $updatedProject['project_options'] =
           $this->curlPost($url . '/options', $projectOptions);
+      }
+      else {
+        $updatedProject['project_options'] = $this->getProjectOptions($updatedProject['id']);
+      }
 
       // Post payment_methods
+      if (isset ($paymentMethods)) {
         $this->curlPost($url . '/payment-methods', $paymentMethods);
+      }
         $updatedProject['payment_methods'] =
           $this->getProjectPaymentMethods($updatedProject['id']);
 
+
         // Set last update time
         $updatedProject['last_update'] = max(
           $updatedProject['last_update'],
@@ -171,14 +183,14 @@ class CRM_TwingleCampaign_BAO_TwingleApiCall {
         unset($updatedProject['payment_methods']['updated_at']);
 
         return $updatedProject;
-    } catch (Exception $e) {
+      }
+    catch
+      (Exception $e) {
         throw new Exception(
           E::SHORT_NAME . 'Call to Twingle API failed: ' .
           $e->getMessage()
         );
       }
-
-
   }
 
 
@@ -266,6 +278,7 @@ class CRM_TwingleCampaign_BAO_TwingleApiCall {
   /**
    * ## Get project options
    * Gets all project options from the Twingle API
+   *
    * @param $projectId
    *
    * @return array
@@ -279,6 +292,7 @@ class CRM_TwingleCampaign_BAO_TwingleApiCall {
   /**
    * ## Get project payment methods
    * Gets all project payment methods from the Twingle API
+   *
    * @param $projectId
    *
    * @return array
@@ -360,7 +374,8 @@ class CRM_TwingleCampaign_BAO_TwingleApiCall {
     }
     if ($curl_status_code == 404) {
       throw new Exception('http status code 404 (not found)');
-    } elseif ($curl_status_code == 500) {
+    }
+    elseif ($curl_status_code == 500) {
       throw new Exception('https status code 500 (internal error)');
     }
     return $response;
@@ -402,7 +417,8 @@ class CRM_TwingleCampaign_BAO_TwingleApiCall {
     }
     if ($curl_status_code == 404) {
       throw new Exception('http status code 404 (not found)');
-    } elseif ($curl_status_code == 500) {
+    }
+    elseif ($curl_status_code == 500) {
       throw new Exception('https status code 500 (internal error)');
     }
     if (sizeof($response) == 1 && isset($response['message'])) {
@@ -448,7 +464,8 @@ class CRM_TwingleCampaign_BAO_TwingleApiCall {
     }
     if ($curl_status_code == 404) {
       throw new Exception('http status code 404 (not found)');
-    } elseif ($curl_status_code == 500) {
+    }
+    elseif ($curl_status_code == 500) {
       throw new Exception('https status code 500 (internal error)');
     }
     return ($curl_status_code == 200);

CRM/TwingleCampaign/BAO/TwingleCampaign.php

@@ -26,7 +26,7 @@ class CRM_TwingleCampaign_BAO_TwingleCampaign {
    *
    * @throws \CiviCRM_API3_Exception
    */
-  public function __construct(array $values, int $id = NULL) {
+  public function __construct(array $values = [], int $id = NULL) {
 
     $this->prefix = 'twingle_campaign_';
     $this->id = $id ?? NULL;

CRM/TwingleCampaign/BAO/TwingleEvent.php

@@ -19,7 +19,7 @@ class CRM_TwingleCampaign_BAO_TwingleEvent extends Campaign {
    *
    * @throws \Exception
    */
-  public function __construct(array $event, int $id = NULL) {
+  public function __construct(array $event = [], int $id = NULL) {
     parent::__construct($event, $id);
 
     $this->prefix = 'twingle_event_';

CRM/TwingleCampaign/BAO/TwingleProject.php

@@ -40,7 +40,7 @@ class CRM_TwingleCampaign_BAO_TwingleProject extends Campaign {
    * @param int|null $id
    * CiviCRM Campaign id
    */
-  public function __construct(array $values, int $id = NULL) {
+  public function __construct(array $values = [], int $id = NULL) {
     parent::__construct($values, $id);
 
     $this->prefix = 'twingle_project_';
@@ -85,7 +85,9 @@ class CRM_TwingleCampaign_BAO_TwingleProject extends Campaign {
    * ## Int to bool
    * Changes all project values that are defined as CiviCRM 'Boolean' types
    * from strings to booleans.
+   *
    * @param array $values
+   *
    * @throws \Exception
    */
   private function intToBool(array &$values) {
@@ -104,7 +106,10 @@ class CRM_TwingleCampaign_BAO_TwingleProject extends Campaign {
       }
       elseif (in_array($key, $boolArrays)) {
         foreach ($values[$key] as $_key => $_value) {
-          if (is_numeric($_value) && $_value < 2 || empty($_value)) {
+          if (is_bool($_value)) {
+            // nothing to do here
+          }
+          elseif (is_numeric($_value) && $_value < 2 || empty($_value)) {
             $values[$key][$_key] = (bool) $_value;
           }
           else {
@@ -122,7 +127,9 @@ class CRM_TwingleCampaign_BAO_TwingleProject extends Campaign {
    * ## Int to bool
    * Changes all project values that are strings but originally came as integers
    * back to integers.
+   *
    * @param array $values
+   *
    * @throws \Exception
    */
   private function strToInt(array &$values) {
@@ -214,8 +221,33 @@ class CRM_TwingleCampaign_BAO_TwingleProject extends Campaign {
   }
 
   /**
-   * ## Clone this TwingleProject
+   * ## Complement campaign values
+   * Complement existing campaign values with new ones
    *
+   * @param array $arrayToComplement
+   *
+   * @overrides CRM_TwingleCampaign_BAO_Campaign
+   */
+  public function complement(array $arrayToComplement) {
+
+    // Set all contact fields to false
+    if (
+      isset($arrayToComplement['values']['project_options']['contact_fields'])
+    ) {
+    foreach (
+      $arrayToComplement['values']['project_options']['contact_fields']
+      as $key => $value
+    ) {
+      $arrayToComplement['values']['project_options']['contact_fields'][$key]
+        = FALSE;
+    }
+  }
+
+    parent::complement($arrayToComplement);
+  }
+
+  /**
+   * ## Clone this TwingleProject
    * This method removes the id and the identifier from this instance and in
    * the next step it pushes the clone as a new project with the same values to
    * Twingle.
@@ -223,11 +255,163 @@ class CRM_TwingleCampaign_BAO_TwingleProject extends Campaign {
    * @throws \Exception
    */
   public function clone() {
-    $this->values['id'] = 0;
+    $this->values['id'] = '';
-    $this->values['identifier'] = 0;
+    $this->values['identifier'] = '';
     $this->create(); // this will also trigger the postSave hook
   }
 
+  /**
+   * ## Validate
+   * Validates project values and returns an array containing the result and
+   * another array with eventual error messages.
+   *
+   * @return array ['valid' => bool, 'messages' => array]
+   */
+  public function validate(): array {
+    $valid = TRUE;
+    $messages = [];
+
+    // Validate email address
+    if (
+      !filter_var(
+        $this->values['project_options']['bcc_email_address'],
+        FILTER_VALIDATE_EMAIL
+      )
+      && !empty($this->values['project_options']['bcc_email_address'])
+    ) {
+      $valid = FALSE;
+      $messages[] = E::ts("BCC email invalid");
+    }
+
+    // Validate hexadecimal color fields
+    $colorFields =
+      [
+        'design_background_color',
+        'design_primary_color',
+        'design_font_color',
+      ];
+    foreach ($colorFields as $colorField) {
+      if (
+        !empty($this->values['project_options'][$colorField]) &&
+        (
+          !(
+            ctype_xdigit($this->values['project_options'][$colorField]) ||
+            is_integer($this->values['project_options'][$colorField])
+          ) ||
+          strlen((string) $this->values['project_options'][$colorField]) > 6
+        )
+      ) {
+        $valid = FALSE;
+        $messages[] =
+          E::ts("Invalid hexadecimal value in color field: %1",
+            [1 => $colorField]);
+      }
+    }
+
+    // Check if donation values are integers and if proposed donation value
+    // lies between max and min values
+    if (
+      // Is integer and >= 0 or empty
+      (
+        empty($this->values['project_options']['donation_value_default']) ||
+        (
+          is_integer($this->values['project_options']['donation_value_default']) ||
+          ctype_digit($this->values['project_options']['donation_value_default'])
+        ) && (
+          $this->values['project_options']['donation_value_default'] >= 0
+        )
+      ) && (
+        empty($this->values['project_options']['donation_value_min']) ||
+        (
+          is_integer($this->values['project_options']['donation_value_min']) ||
+          ctype_digit($this->values['project_options']['donation_value_min'])
+        ) && (
+          $this->values['project_options']['donation_value_max'] >= 0
+        )
+      ) && (
+        empty($this->values['project_options']['donation_value_max']) ||
+        (
+          is_integer($this->values['project_options']['donation_value_max']) ||
+          ctype_digit($this->values['project_options']['donation_value_max'])
+        ) && (
+          $this->values['project_options']['donation_value_max'] >= 0
+        )
+      )
+    ) {
+      if (
+        // all empty
+        empty($this->values['project_options']['donation_value_default']) &&
+        empty($this->values['project_options']['donation_value_min']) &&
+        empty($this->values['project_options']['donation_value_max'])
+      ) {
+        // nothing to validate
+      }
+      elseif (
+        // Max empty, min not empty
+        (!empty($this->values['project_options']['donation_value_min']) &&
+          empty($this->values['project_options']['donation_value_max'])) ||
+        // Max empty, default not empty
+        (!empty($this->values['project_options']['donation_value_default']) &&
+          empty($this->values['project_options']['donation_value_max']))
+      ) {
+        $valid = FALSE;
+        $messages[] =
+          E::ts("Missing maximum donation value");
+      }
+      else {
+        if (
+          // Min >= Max
+          $this->values['project_options']['donation_value_min'] >=
+          $this->values['project_options']['donation_value_max']
+        ) {
+          $valid = FALSE;
+          $messages[] =
+            E::ts("Maximum donation value must be higher than the minimum");
+        }
+        elseif (
+          // Default < min or default > max
+          $this->values['project_options']['donation_value_default'] <
+          $this->values['project_options']['donation_value_min'] ||
+          $this->values['project_options']['donation_value_default'] >
+          $this->values['project_options']['donation_value_max']
+        ) {
+          $valid = FALSE;
+          $messages[] =
+            E::ts("Default donation value must lie in between maximum and minimum values");
+        }
+      }
+    }
+    else {
+      $valid = FALSE;
+      $messages[] =
+        E::ts("Donation values (Min, Max, Default) must be positive integers");
+    }
+
+    // Validate sharing url
+    $urlFields =
+      [
+        'custom_css',
+        'share_url',
+      ];
+
+    foreach ($urlFields as $urlField) {
+      if (!empty($this->values['project_options'][$urlField])) {
+        if (
+          !filter_var(
+            $this->values['project_options'][$urlField],
+            FILTER_VALIDATE_URL
+          ) || empty($this->values['project_options'][$urlField])
+        ) {
+          $valid = FALSE;
+          $messages[] =
+            E::ts("Invalid URL: %1", [1 => $urlField]);
+        }
+      }
+    }
+
+    return ['valid' => $valid, 'messages' => $messages];
+  }
+
 
   /**
    * ## Translate values between CiviCRM Campaigns and Twingle formats
@@ -246,7 +430,8 @@ class CRM_TwingleCampaign_BAO_TwingleProject extends Campaign {
    *
    * @throws Exception
    */
-  public static function formatValues(array &$values, string $direction) {
+  public
+  static function formatValues(array &$values, string $direction) {
 
     if ($direction == self::IN) {
 
@@ -467,7 +652,8 @@ class CRM_TwingleCampaign_BAO_TwingleProject extends Campaign {
    * @return array
    *
    */
-  public function getResponse(string $status = NULL): array {
+  public
+  function getResponse(string $status = NULL): array {
     $project_type = empty($this->values['type']) ? 'default' : $this->values['type'];
     $response =
       [
@@ -489,7 +675,8 @@ class CRM_TwingleCampaign_BAO_TwingleProject extends Campaign {
    *
    * @return int|string|null
    */
-  public function lastUpdate() {
+  public
+  function lastUpdate(): ?int {
     return self::getTimestamp($this->values['last_update']);
   }
 
@@ -500,8 +687,72 @@ class CRM_TwingleCampaign_BAO_TwingleProject extends Campaign {
    *
    * @return int
    */
-  public function getProjectId(): int {
+  public
+  function getProjectId(): int {
     return (int) $this->values['id'];
   }
 
+  /**
+   * ## Get the payment methods array of this project
+   *
+   * @return array
+   */
+  public function getValues(): array {
+    if (isset($this->values)) {
+      return $this->values;
+    }
+    else {
+      return [];
+    }
+  }
+
+  /**
+   * ## Get the project options array of this project
+   *
+   * @return array
+   */
+  public function getOptions(): array {
+    if (isset($this->values['project_options'])) {
+      return $this->values['project_options'];
+    }
+    else {
+      return [];
+    }
+  }
+
+  /**
+   * ## Get the payment methods array of this project
+   *
+   * @return array
+   */
+  public function getPaymentMethods(): array {
+    if (isset($this->values['payment_methods'])) {
+      return $this->values['payment_methods'];
+    }
+    else {
+      return [];
+    }
+  }
+
+  /**
+   * ## Get the payment methods array of this project
+   */
+  public function deleteValues(): void {
+    unset ($this->values);
+  }
+
+  /**
+   * ## Get the project options array of this project
+   */
+  public function deleteOptions(): void {
+    unset($this->values['project_options']);
+  }
+
+  /**
+   * ## Get the payment methods array of this project
+   */
+  public function deletePaymentMethods(): void {
+    unset($this->values['payment_methods']);
+  }
+
 }

api/v3/TwingleProject/Sync.php

@@ -131,6 +131,20 @@ function civicrm_api3_twingle_project_Sync(array $params): array {
       // instantiate project
       $project = new TwingleProject($result, $id);
 
+      // Send project information to Tingle and update project with the
+      // answer
+      $projectOptions = $project->getOptions();
+      $project->deleteOptions();
+      $paymentMethods = $project->getPaymentMethods();
+      $project->deletePaymentMethods();
+      $projectFromTwingle = $twingleApi->pushProject($project->export());
+      $project = new TwingleProject($projectFromTwingle, $project->getId());
+      $projectValues = $project->getValues();
+      $projectValues['project_options'] = $projectOptions;
+      $projectValues['payment_methods'] = $paymentMethods;
+      $project->update($projectValues);
+      $project->complement($projectFromTwingle);
+
       // Push project to Twingle
       return _pushProjectToTwingle($project, $twingleApi, $params);
     }
@@ -342,17 +356,19 @@ function _updateProjectLocally(array $project_from_twingle,
  * @param \CRM_TwingleCampaign_BAO_TwingleProject $project
  * @param \CRM_TwingleCampaign_BAO_TwingleApiCall $twingleApi
  * @param array $params
+ * @param bool $update Update project after push?
  *
  * @return array
  * @throws \CiviCRM_API3_Exception
  */
 function _pushProjectToTwingle(TwingleProject $project,
                                TwingleApiCall $twingleApi,
-                               array $params): array {
+                               array $params = [],
+                               bool $update = TRUE): array {
 
   // If this is a test, do not make db changes
-  if ($params['is_test']) {
+  if (isset($params['is_test']) && $params['is_test']) {
-    $response[$project->getId] =
+    $response[$project->getId()] =
       $project->getResponse('TwingleProject ready to push to Twingle');
     return civicrm_api3_create_success(
       $response,
@@ -379,6 +395,7 @@ function _pushProjectToTwingle(TwingleProject $project,
   }
 
   // Update local campaign with data returning from Twingle
+  if ($update) {
     if ($result) {
       $project->update($result);
       try {
@@ -419,6 +436,17 @@ function _pushProjectToTwingle(TwingleProject $project,
       );
     }
   }
+  else {
+    $response[$project->getId()] =
+      $project->getResponse('TwingleProject pushed to Twingle');
+    return civicrm_api3_create_success(
+      $response,
+      $params,
+      'TwingleProject',
+      'Sync'
+    );
+  }
+}
 
 
 /**

twinglecampaign.php

@@ -1,6 +1,8 @@
 <?php
 
 use CRM_TwingleCampaign_Utils_ExtensionCache as ExtensionCache;
+use CRM_TwingleCampaign_BAO_TwingleProject as TwingleProject;
+use CRM_TwingleCampaign_BAO_TwingleApiCall as TwingleApiCall;
 use CRM_TwingleCampaign_ExtensionUtil as E;
 
 require_once 'twinglecampaign.civix.php';
@@ -9,6 +11,7 @@ require_once 'twinglecampaign.civix.php';
  * Implements hook_civicrm_config().
  *
  * @link https://docs.civicrm.org/dev/en/latest/hooks/hook_civicrm_config/
+ *
  * @param $config
  */
 function twinglecampaign_civicrm_config(&$config) {
@@ -63,15 +66,20 @@ function twinglecampaign_civicrm_postSave_civicrm_campaign($dao) {
     // If the db transaction is still running, add a function to it that will
     // be called afterwards
     if (CRM_Core_Transaction::isActive()) {
+
+      if (_validateAndSendInput($dao->id, $dao->campaign_type_id)) {
+
         CRM_Core_Transaction::addCallback(
           CRM_Core_Transaction::PHASE_POST_COMMIT,
-        'twinglecampaign_postSave_campaign_callback',
+          'twinglecampaign_postSave_campaign_update_callback',
           [$dao->id, $dao->campaign_type_id]
         );
       }
+    }
+
     // If the transaction is already finished, call the function directly
     else {
-      twinglecampaign_postSave_campaign_callback($dao->id, $dao->campaign_type_id);
+      twinglecampaign_postSave_campaign_update_callback($dao->id, $dao->campaign_type_id);
     }
 
   }
@@ -89,21 +97,13 @@ function twinglecampaign_civicrm_postSave_civicrm_campaign($dao) {
  *
  * @throws \CiviCRM_API3_Exception
  */
-function twinglecampaign_postSave_campaign_callback (
+function twinglecampaign_postSave_campaign_update_callback(
   int $campaign_id,
   int $campaign_type_id
 ) {
 
-  // Get campaign type id for TwingleProject
+  $twingle_project_campaign_type_id = _get_campaign_type_id_twingle_project();
-  $twingle_project_campaign_type_id =
+  $twingle_campaign_campaign_type_id = _get_campaign_type_id_twingle_campaign();
-    ExtensionCache::getInstance()
-      ->getCampaigns()['campaign_types']['twingle_project']['id'];
-
-  // Get campaign type id for TwingleCampaign
-  $twingle_campaign_campaign_type_id =
-    ExtensionCache::getInstance()
-      ->getCampaigns()['campaign_types']['twingle_campaign']['id'];
-
 
   // If $campaign_type_id is a TwingleProject or TwingleCampaign campaign,
   // synchronize it
@@ -121,15 +121,14 @@ function twinglecampaign_postSave_campaign_callback (
     }
 
     if (isset($_POST['action'])) {
-      if ($_POST['action'] == 'clone') {
+      if ($_POST['action'] == 'clone' && $entity == 'TwingleProject') {
         unset($_POST['action']);
-        $result = civicrm_api3($entity, 'getsingle',
+        $result = civicrm_api3('TwingleProject', 'getsingle',
           ['id' => $campaign_id]
-        )['values'][$campaign_id];
+        );
-        $className = 'CRM_TwingleCampaign_BAO_' . $entity;
         $id = $result['id'];
         unset($result['id']);
-        $project = new $className($result, $id);
+        $project = new TwingleProject($result, $id);
         try {
           $project->clone();
         } catch (Exception $e) {
@@ -137,23 +136,42 @@ function twinglecampaign_postSave_campaign_callback (
             E::LONG_NAME .
             ' could not clone ' . $entity . ': ' . $e->getMessage()
           );
-          CRM_Utils_System::setUFMessage($entity . ' could not get cloned.');
+          CRM_Core_Session::setStatus(
+            $e->getMessage(),
+            E::ts("Campaign cloning failed"),
+            error,
+            [unique => TRUE]
+          );
         }
       }
+    }
+
+    // If a TwingleProject is getting saved
     elseif ($entity == 'TwingleProject') {
+
+      // Synchronize all child TwingleCampaign campaigns
       try {
-          civicrm_api3('TwingleProject', 'sync', ['id' => $campaign_id]);
+        civicrm_api3(
-          CRM_Utils_System::setUFMessage('TwingleProject was saved.');
+          'TwingleCampaign',
+          'sync',
+          ['parent_id' => $campaign_id]);
       } catch (CiviCRM_API3_Exception $e) {
+        CRM_Core_Session::setStatus(
+          $e->getMessage(),
+          E::ts("TwingleCampaign update failed"),
+          error, [unique => TRUE]
+        );
         Civi::log()->error(
-            'twinglecampaign_postSave_callback ' . $e->getMessage()
+          E::SHORT_NAME .
+          ' Update of TwingleCampaigns failed: ' . $e->getMessage()
         );
       }
     }
     else {
       try {
-          civicrm_api3('TwingleCampaign', 'create', ['id' => $campaign_id]);
+        civicrm_api3('TwingleCampaign', 'create',
-          CRM_Utils_System::setUFMessage('TwingleCampaign was saved.');
+          ['id' => $campaign_id, 'parent_id' => $_POST['parent_id']]);
+        CRM_Utils_System::setUFMessage(E::ts('TwingleCampaign was saved.'));
       } catch (CiviCRM_API3_Exception $e) {
         Civi::log()->error(
           'twinglecampaign_postSave_callback ' . $e->getMessage()
@@ -161,18 +179,7 @@ function twinglecampaign_postSave_campaign_callback (
       }
     }
   }
-    elseif ($entity == 'TwingleProject') {
-      // Also synchronize all child TwingleCampaign campaigns
-      try {
-        civicrm_api3('TwingleCampaign', 'sync', ['project_id' => $campaign_id]);
-      } catch (CiviCRM_API3_Exception $e) {
-        Civi::log()->error(
-          'twinglecampaign_postSave_callback ' . $e->getMessage()
-        );
 }
-      try {
-        civicrm_api3('TwingleProject', 'sync', ['id' => $campaign_id]);
-        CRM_Utils_System::setUFMessage('TwingleProject was saved.');
 
 function _get_campaign_type_id_twingle_project() {
   return ExtensionCache::getInstance()
@@ -184,11 +191,177 @@ function _get_campaign_type_id_twingle_campaign() {
     ->getCampaignIds()['campaign_types']['twingle_campaign']['id'];
 }
 
-          'twinglecampaign_postSave_callback ' . $e->getMessage()
+/**
+ * Callback to sync a project after its creation.
+ * @param int $campaign_id
+ */
+function twinglecampaign_postSave_project_create_callback(
+  int $campaign_id
+) {
+  try {
+    civicrm_api3(
+      'TwingleProject',
+      'sync',
+      ['id' => $campaign_id]);
+  } catch (Exception $e) {
+    CRM_Core_Session::setStatus(
+      $e->getMessage(),
+      E::ts("TwingleProject creation failed"),
+      error, [unique => TRUE]
+    );
+    Civi::log()->error(
+      E::SHORT_NAME .
+      ' Update of TwingleProject creation failed: ' . $e->getMessage()
     );
   }
 }
+
+/**
+ * First validate and then sends the input of this transaction to Twinge.
+ * If the call to the Twingle API succeeded, this function returns TRUE;
+ *
+ * @param $id
+ * @param $campaign_type_id
+ *
+ * @return bool
+ * @throws \CiviCRM_API3_Exception
+ */
+function _validateAndSendInput($id, $campaign_type_id): bool {
+
+  // Set callback for cloning
+  if (isset($_POST['action'])) {
+    CRM_Core_Transaction::addCallback(
+      CRM_Core_Transaction::PHASE_POST_COMMIT,
+      'twinglecampaign_postSave_campaign_update_callback',
+      [$id, $campaign_type_id]
+    );
+    return FALSE;
   }
+
+  if ($campaign_type_id == _get_campaign_type_id_twingle_project()) {
+
+    // Instantiate project
+    $project = new TwingleProject();
+
+    // Translate custom fields from $_POST
+    $customFields = [];
+    $customFieldsKeys = preg_grep('/^custom_/', array_keys($_POST));
+    foreach ($customFieldsKeys as $key) {
+      $customFields[preg_replace('/_-?\d*$/', '', $key)] =
+        $_POST[$key];
+    }
+    $project->translateCustomFields(
+      $customFields,
+      TwingleProject::OUT
+    );
+    TwingleProject::formatValues($customFields, TwingleProject::OUT);
+
+    // Update project
+    $project->update($customFields);
+
+    // Validate project values
+    $validation = $project->validate();
+
+    // If the input is valid, send it to Twingle
+    if ($validation['valid']) {
+
+      // Try to retrieve twingleApi from cache or create a new
+      $twingleApi = Civi::cache()->get('twinglecampaign_twingle_api');
+      if (NULL === $twingleApi) {
+        try {
+          $twingleApi =
+            new TwingleApiCall(Civi::settings()->get('twingle_api_key'));
+        } catch (Exception $e) {
+
+          // Roll back transaction if input validation failed
+          CRM_Core_Transaction::rollbackIfFalse(FALSE);
+
+          CRM_Core_Session::setStatus(
+            $e->getMessage(),
+            E::ts("Could not retrieve Twingle API key"),
+            error,
+            [unique => TRUE]
+          );
+          Civi::log()->error(
+            E::SHORT_NAME .
+            ' Could not retrieve Twingle API key: ' . $e->getMessage()
+          );
+        }
+        Civi::cache('long')->set('twinglecampaign_twingle_api', $twingleApi);
+      }
+
+      try {
+        // Complement project values with values from Twingle if it has a
+        // project_id
+        if ($project->getProjectId()) {
+          $project_from_twingle = $twingleApi->getProject($project->getProjectId());
+          $project->complement($project_from_twingle);
+        }
+        // If this campaign is just about to become created, add a callback to
+        // sync it after the transaction has finished
+        else {
+          CRM_Core_Transaction::addCallback(
+            CRM_Core_Transaction::PHASE_POST_COMMIT,
+            'twinglecampaign_postSave_project_create_callback', [$id]
+          );
+          return FALSE;
+        }
+
+        // Push project
+        require E::path() . '/api/v3/TwingleProject/Sync.php';
+        $result = _pushProjectToTwingle($project, $twingleApi, [], FALSE);
+        if ($result['is_error'] != 0) {
+          throw new \CiviCRM_API3_Exception($result['error_message']);
+        }
+      } catch (Exception $e) {
+
+        // Roll back transaction if input validation failed
+        CRM_Core_Transaction::rollbackIfFalse(FALSE);
+
+        // Display and log error message
+        CRM_Core_Session::setStatus(
+          $e->getMessage(),
+          E::ts("TwingleProject synchronization failed: %1",
+            [1 => $e->getMessage()]),
+          error,
+          [unique => TRUE]
+        );
+        Civi::log()->error(
+          E::SHORT_NAME .
+          ' TwingleProject synchronization failed: ' . $e->getMessage()
+        );
+        // Push failed
+        return FALSE;
+      }
+      // Push succeeded
+      return TRUE;
+    }
+    // Display error message if validation failed
+    else {
+
+      // Roll back transaction if input validation failed
+      CRM_Core_Transaction::rollbackIfFalse(FALSE);
+
+      // Build error message
+      $errorMessage = '<ul>';
+      foreach ($validation['messages'] as $message) {
+        $errorMessage = $errorMessage . '<li>' . $message . '</li>';
+      }
+      $errorMessage = $errorMessage . '</ul>';
+
+      CRM_Core_Session::setStatus(
+        $errorMessage,
+        E::ts("Input validation failed"),
+        error,
+        [unique => TRUE]
+      );
+      // Validation failed
+      return FALSE;
+    }
+  }
+
+  // TwingleCampaigns always return TRUE;
+  return TRUE;
 }