create custom exceptions

CRM/Twingle/Exceptions/BaseException.php

@@ -0,0 +1,43 @@
+<?php
+
+use CRM_Twingle_ExtensionUtil as E;
+
+/**
+ * A simple custom exception class that indicates a problem within a class
+ * of the Twingle API extension.
+ */
+class CRM_Twingle_Exceptions_BaseException extends Exception {
+
+  private string $error_code;
+  private string $log_message;
+
+  /**
+   * BaseException Constructor
+   * @param string $message
+   *  Error message
+   * @param string $error_code
+   *  A meaningful error code
+   */
+  public function __construct(string $message = '', string $error_code = '') {
+    parent::__construct($message, 1);
+    $this->log_message = !empty($message) ? E::LONG_NAME . ': ' . $message : '';
+    $this->error_code = $error_code;
+  }
+
+  /**
+   * Returns the error message, but with the extension name prefixed.
+   * @return string
+   */
+  public function getLogMessage() {
+    return $this->log_message;
+  }
+
+  /**
+   * Returns the error code.
+   * @return string
+   */
+  public function getErrorCode() {
+    return $this->error_code;
+  }
+
+}

CRM/Twingle/Exceptions/ProfileException.php

@@ -0,0 +1,16 @@
+<?php
+
+/**
+ * A simple custom exception that indicates a problem within the
+ * CRM_Twingle_Profile class
+ */
+class CRM_Twingle_Exceptions_ProfileException extends CRM_Twingle_Exceptions_BaseException {
+
+  public const ERROR_CODE_PROFILE_NOT_FOUND = 'profile_not_found';
+  public const ERROR_CODE_DEFAULT_PROFILE_NOT_FOUND = 'default_profile_not_found';
+  public const ERROR_CODE_COULD_NOT_SAVE_PROFILE = 'could_not_save_profile';
+  public const ERROR_CODE_COULD_NOT_RESET_PROFILE = 'could_not_reset_profile';
+  public const ERROR_CODE_COULD_NOT_DELETE_PROFILE = 'could_not_delete_profile';
+  public const ERROR_CODE_UNKNOWN_PROFILE_ATTRIBUTE = 'unknown_profile_attribute';
+
+}

CRM/Twingle/Exceptions/ProfileValidationError.php

@@ -0,0 +1,34 @@
+<?php
+
+/**
+ * A simple custom error indicating a problem with the validation of the
+ * CRM_Twingle_Profile
+ */
+class CRM_Twingle_Exceptions_ProfileValidationError extends CRM_Twingle_Exceptions_BaseException {
+
+  private string $affected_field_name;
+  public const ERROR_CODE_PROFILE_VALIDATION_FAILED = 'profile_validation_failed';
+
+  /**
+   * ProfileValidationError Constructor
+   * @param string $affected_field_name
+   *  The name of the profile field which caused the exception
+   * @param string $message
+   *  Error message
+   * @param string $error_code
+   *  A meaningful error code
+   */
+  public function __construct(string $affected_field_name, string $message = '', string $error_code = '') {
+    parent::__construct($message, 1);
+    $this->affected_field_name = $affected_field_name;
+  }
+
+  /**
+   * Returns the name of the profile field that caused the exception.
+   * @return string
+   */
+  public function getAffectedFieldName() {
+    return $this->affected_field_name;
+  }
+
+}

CRM/Twingle/Form/Profile.php

@@ -16,6 +16,8 @@
 declare(strict_types = 1);
 
 use CRM_Twingle_ExtensionUtil as E;
+use CRM_Twingle_Exceptions_ProfileException as ProfileException;
+use CRM_Twingle_Exceptions_ProfileValidationError as ProfileValidationError;
 
 /**
  * Form controller class
@@ -633,23 +635,33 @@ class CRM_Twingle_Form_Profile extends CRM_Core_Form {
    */
   public function postProcess() {
     $values = $this->exportValues();
-    if (in_array($this->_op, ['create', 'edit', 'copy'])) {
+    try {
-      if (empty($values['name'])) {
+      if (in_array($this->_op, ['create', 'edit', 'copy'])) {
-        $values['name'] = 'default';
+        if (empty($values['name'])) {
-      }
+          $values['name'] = 'default';
-      $this->profile->setName($values['name']);
-      foreach ($this->profile->getData() as $element_name => $value) {
-        if ($element_name == 'newsletter_double_opt_in') {
-          $values[$element_name] = (int) isset($values[$element_name]);
         }
-        if (isset($values[$element_name])) {
+        $this->profile->setName($values['name']);
-          $this->profile->setAttribute($element_name, $values[$element_name]);
+        foreach ($this->profile->getData() as $element_name => $value) {
+          if ($element_name == 'newsletter_double_opt_in') {
+            $values[$element_name] = (int) isset($values[$element_name]);
+          }
+          if (isset($values[$element_name])) {
+            $this->profile->setAttribute($element_name, $values[$element_name]);
+          }
         }
+        $this->profile->saveProfile();
       }
-      $this->profile->saveProfile();
+      elseif ($this->_op == 'delete') {
-    }
+        $this->profile->deleteProfile();
-    elseif ($this->_op == 'delete') {
+      }
-      $this->profile->deleteProfile();
+    } catch (ProfileException $e) {
+      Civi::log()->error($e->getLogMessage());
+      CRM_Core_Session::setStatus(
+        E::ts('Error'),
+        $e->getMessage(),
+        'error',
+        ['unique' => TRUE]
+      );
     }
     parent::postProcess();
   }

CRM/Twingle/Profile.php

@@ -16,6 +16,8 @@
 declare(strict_types = 1);
 
 use CRM_Twingle_ExtensionUtil as E;
+use CRM_Twingle_Exceptions_ProfileException as ProfileException;
+use CRM_Twingle_Exceptions_ProfileValidationError as ProfileValidationError;
 
 /**
  * Profiles define how incoming submissions from the Twingle API are
@@ -142,12 +144,15 @@ class CRM_Twingle_Profile {
    * @param string $attribute_name
    * @param mixed $value
    *
-   * @throws \Exception
+   * @throws \CRM_Twingle_Exceptions_ProfileException
    *   When the attribute name is not known.
    */
   public function setAttribute($attribute_name, $value) {
     if (!in_array($attribute_name, self::allowedAttributes())) {
-      throw new Exception(E::ts('Unknown attribute %1.', [1 => $attribute_name]));
+      throw new ProfileException(
+        E::ts('Unknown attribute %1.', [1 => $attribute_name]),
+      ProfileException::ERROR_CODE_UNKNOWN_PROFILE_ATTRIBUTE
+      );
     }
     // TODO: Check if value is acceptable.
     $this->data[$attribute_name] = $value;
@@ -430,6 +435,7 @@ class CRM_Twingle_Profile {
    * Get the stats (access_count, last_access) for all twingle profiles
    *
    * @return CRM_Twingle_Profile[]
+   * @throws \Civi\Core\Exception\DBQueryException
    */
   public static function getProfileStats() {
     $stats = [];