Exception when saving User with empty Phone field

[elvdm]

I have added Sprout Fields' phone field to the User field layout, and it is set as not required.

When I save the user when the field is populated with a value, it works.
When the field is not populated with a value, I get an exception thrown:

PHP Recoverable Error – yii\base\ErrorException
Method barrelstrength\sproutbase\models\sproutfields\Phone::__toString() must return a string value

Stack trace:

2018-03-07 13:55:09 [127.0.0.1][1][8madbmg67e4fthvj3bk9fbp9st][error][yii\base\ErrorException:4096] yii\base\ErrorException: Method barrelstrength\sproutbase\models\sproutfields\Phone::__toString() must return a string value in /Users/emma/Sites/bouwjobs/vendor/craftcms/cms/src/helpers/StringHelper.php:758
Stack trace:
#0 /Users/emma/Sites/bouwjobs/vendor/craftcms/cms/src/web/ErrorHandler.php(84): yii\base\ErrorHandler->handleError(4096, 'Method barrelst...', '/Users/emma/Sit...', 758)
#1 /Users/emma/Sites/bouwjobs/vendor/craftcms/cms/src/helpers/StringHelper.php(758): craft\web\ErrorHandler->handleError(4096, 'Method barrelst...', '/Users/emma/Sit...', 758, Array)
#2 /Users/emma/Sites/bouwjobs/vendor/craftcms/cms/src/base/Field.php(322): craft\helpers\StringHelper::toString(Object(barrelstrength\sproutbase\models\sproutfields\Phone), ' ')
#3 /Users/emma/Sites/bouwjobs/vendor/craftcms/cms/src/services/Content.php(236): craft\base\Field->getSearchKeywords(Object(barrelstrength\sproutbase\models\sproutfields\Phone), Object(craft\elements\User))
#4 /Users/emma/Sites/bouwjobs/vendor/craftcms/cms/src/services/Content.php(201): craft\services\Content->_updateSearchIndexes(Object(craft\elements\User), Object(craft\models\FieldLayout))
#5 /Users/emma/Sites/bouwjobs/vendor/craftcms/cms/src/services/Elements.php(455): craft\services\Content->saveContent(Object(craft\elements\User))
#6 /Users/emma/Sites/bouwjobs/vendor/craftcms/cms/src/controllers/UsersController.php(1101): craft\services\Elements->saveElement(Object(craft\elements\User), false)
#7 [internal function]: craft\controllers\UsersController->actionSaveUser()
#8 /Users/emma/Sites/bouwjobs/vendor/yiisoft/yii2/base/InlineAction.php(57): call_user_func_array(Array, Array)
#9 /Users/emma/Sites/bouwjobs/vendor/yiisoft/yii2/base/Controller.php(157): yii\base\InlineAction->runWithParams(Array)
#10 /Users/emma/Sites/bouwjobs/vendor/craftcms/cms/src/web/Controller.php(74): yii\base\Controller->runAction('save-user', Array)
#11 /Users/emma/Sites/bouwjobs/vendor/yiisoft/yii2/base/Module.php(528): craft\web\Controller->runAction('save-user', Array)
#12 /Users/emma/Sites/bouwjobs/vendor/craftcms/cms/src/web/Application.php(237): yii\base\Module->runAction('users/save-user', Array)
#13 /Users/emma/Sites/bouwjobs/vendor/craftcms/cms/src/web/Application.php(445): craft\web\Application->runAction('users/save-user', Array)
#14 /Users/emma/Sites/bouwjobs/vendor/craftcms/cms/src/web/Application.php(221): craft\web\Application->_processActionRequest(Object(craft\web\Request))
#15 /Users/emma/Sites/bouwjobs/vendor/yiisoft/yii2/base/Application.php(386): craft\web\Application->handleRequest(Object(craft\web\Request))
#16 /Users/emma/Sites/bouwjobs/web/index.php(42): yii\base\Application->run()
#17 /Users/emma/.composer/vendor/laravel/valet/server.php(147): require('/Users/emma/Sit...')
#18 {main}

Within barrelstrength\sproutbase\models\sproutfields\Phone, the __toString method is trying to return $this->international, which is set to NULL when the field is empty.
Changing this line to return (string)$this->international; appears to resolve the issue.

Thank you for this plugin by the way, it looks really useful!

[BenParizek]

Thanks @elvdm.

We'll try to recreate this and get your fix into the next release.

[BenParizek]

Fixed in v3.0.3

Thanks!