Cannot save attribute

[maximehuran]

Preconditions

1. Have an attribute with a source model Magento\Eav\Model\Entity\Attribute\Source\Boolean
2. Have it's frontend_input with "select".

Steps to reproduce

1. Go in backend and try to save the attribute

Expected result

1. The attribute must be saved with success

Actual result

1. Error 500 :

1 exception(s):
Exception #0 (Exception): Notice: Undefined index: value in /var/www/preprod/vendor/magento/module-catalog/Controller/Adminhtml/Product/Attribute/Validate.php on line 155

Exception #0 (Exception): Notice: Undefined index: value in /var/www/preprod/vendor/magento/module-catalog/Controller/Adminhtml/Product/Attribute/Validate.php on line 155
#0 /var/www/preprod/vendor/magento/module-catalog/Controller/Adminhtml/Product/Attribute/Validate.php(155): Magento\Framework\App\ErrorHandler->handler(8, 'Undefined index...', '/var/www/prepro...', 155, Array)
#1 /var/www/preprod/vendor/magento/module-catalog/Controller/Adminhtml/Product/Attribute/Validate.php(108): Magento\Catalog\Controller\Adminhtml\Product\Attribute\Validate->checkUniqueOption(Object(Magento\Framework\DataObject), Array)
#2 /var/www/preprod/var/generation/Magento/Catalog/Controller/Adminhtml/Product/Attribute/Validate/Interceptor.php(24): Magento\Catalog\Controller\Adminhtml\Product\Attribute\Validate->execute()
#3 /var/www/preprod/vendor/magento/framework/App/Action/Action.php(102): Magento\Catalog\Controller\Adminhtml\Product\Attribute\Validate\Interceptor->execute()
#4 /var/www/preprod/vendor/magento/module-backend/App/AbstractAction.php(226): Magento\Framework\App\Action\Action->dispatch(Object(Magento\Framework\App\Request\Http))
#5 /var/www/preprod/vendor/magento/module-catalog/Controller/Adminhtml/Product/Attribute.php(79): Magento\Backend\App\AbstractAction->dispatch(Object(Magento\Framework\App\Request\Http))
#6 /var/www/preprod/vendor/magento/framework/Interception/Interceptor.php(74): Magento\Catalog\Controller\Adminhtml\Product\Attribute->dispatch(Object(Magento\Framework\App\Request\Http))
#7 /var/www/preprod/vendor/magento/framework/Interception/Chain/Chain.php(70): Magento\Catalog\Controller\Adminhtml\Product\Attribute\Validate\Interceptor->___callParent('dispatch', Array)
#8 /var/www/preprod/vendor/magento/framework/Interception/Chain/Chain.php(63): Magento\Framework\Interception\Chain\Chain->invokeNext('Magento\\Catalog...', 'dispatch', Object(Magento\Catalog\Controller\Adminhtml\Product\Attribute\Validate\Interceptor), Array, 'adminAuthentica...')
#9 /var/www/preprod/vendor/magento/module-backend/App/Action/Plugin/Authentication.php(143): Magento\Framework\Interception\Chain\Chain->Magento\Framework\Interception\Chain\{closure}(Object(Magento\Framework\App\Request\Http))
#10 /var/www/preprod/vendor/magento/framework/Interception/Chain/Chain.php(67): Magento\Backend\App\Action\Plugin\Authentication->aroundDispatch(Object(Magento\Catalog\Controller\Adminhtml\Product\Attribute\Validate\Interceptor), Object(Closure), Object(Magento\Framework\App\Request\Http))
#11 /var/www/preprod/vendor/magento/framework/Interception/Interceptor.php(138): Magento\Framework\Interception\Chain\Chain->invokeNext('Magento\\Catalog...', 'dispatch', Object(Magento\Catalog\Controller\Adminhtml\Product\Attribute\Validate\Interceptor), Array, 'adminMassaction...')
#12 /var/www/preprod/vendor/magento/module-backend/App/Action/Plugin/MassactionKey.php(33): Magento\Catalog\Controller\Adminhtml\Product\Attribute\Validate\Interceptor->Magento\Framework\Interception\{closure}(Object(Magento\Framework\App\Request\Http))
#13 /var/www/preprod/vendor/magento/framework/Interception/Interceptor.php(142): Magento\Backend\App\Action\Plugin\MassactionKey->aroundDispatch(Object(Magento\Catalog\Controller\Adminhtml\Product\Attribute\Validate\Interceptor), Object(Closure), Object(Magento\Framework\App\Request\Http))
#14 /var/www/preprod/var/generation/Magento/Catalog/Controller/Adminhtml/Product/Attribute/Validate/Interceptor.php(39): Magento\Catalog\Controller\Adminhtml\Product\Attribute\Validate\Interceptor->___callPlugins('dispatch', Array, Array)
#15 /var/www/preprod/vendor/magento/framework/App/FrontController.php(55): Magento\Catalog\Controller\Adminhtml\Product\Attribute\Validate\Interceptor->dispatch(Object(Magento\Framework\App\Request\Http))
#16 /var/www/preprod/vendor/magento/framework/Interception/Interceptor.php(74): Magento\Framework\App\FrontController->dispatch(Object(Magento\Framework\App\Request\Http))
#17 /var/www/preprod/vendor/magento/framework/Interception/Chain/Chain.php(70): Magento\Framework\App\FrontController\Interceptor->___callParent('dispatch', Array)
#18 /var/www/preprod/vendor/magento/framework/Interception/Interceptor.php(138): Magento\Framework\Interception\Chain\Chain->invokeNext('Magento\\Framewo...', 'dispatch', Object(Magento\Framework\App\FrontController\Interceptor), Array, 'install')
#19 /var/www/preprod/vendor/magento/framework/Module/Plugin/DbStatusValidator.php(69): Magento\Framework\App\FrontController\Interceptor->Magento\Framework\Interception\{closure}(Object(Magento\Framework\App\Request\Http))
#20 /var/www/preprod/vendor/magento/framework/Interception/Interceptor.php(142): Magento\Framework\Module\Plugin\DbStatusValidator->aroundDispatch(Object(Magento\Framework\App\FrontController\Interceptor), Object(Closure), Object(Magento\Framework\App\Request\Http))
#21 /var/www/preprod/var/generation/Magento/Framework/App/FrontController/Interceptor.php(26): Magento\Framework\App\FrontController\Interceptor->___callPlugins('dispatch', Array, Array)
#22 /var/www/preprod/vendor/magento/framework/App/Http.php(135): Magento\Framework\App\FrontController\Interceptor->dispatch(Object(Magento\Framework\App\Request\Http))
#23 /var/www/preprod/vendor/magento/framework/App/Bootstrap.php(258): Magento\Framework\App\Http->launch()
#24 /var/www/preprod/index.php(39): Magento\Framework\App\Bootstrap->run(Object(Magento\Framework\App\Http))
#25 {main}

Magento goes on the class :
Magento\Catalog\Controller\Adminhtml\Product\Attribute\Validate
In the method : checkUniqueOption

/**
     * @param DataObject $response
     * @param array|null $options
     */
    private function checkUniqueOption(DataObject $response, array $options = null)
    {
        if (is_array($options) && !$this->isUniqueAdminValues($options['value'], $options['delete'])) {
            $this->setMessageToResponse($response, [__('The value of Admin must be unique.')]);
            $response->setError(true);
        }
    }

But $options['value'] doesn't exist.
Why ? Because on the backend the form disable the inputs :

[veloraven]

@maximehuran thank you for your report.
Please, also identify which version of Magento you are running.

[maximehuran]

Oh sorry. My Magento version is 2.1.3 Le ven. 20 janv. 2017 à 09:36, Olga Moyseyenko <notifications@github.com> a écrit :

…

@maximehuran <https://github.com/maximehuran> thank you for your report. Please, also identify which version of Magento you are running. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#8202 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AK2nk68-U5JZb0uK5StAmYaH9DWS7GhQks5rUHIGgaJpZM4LoXwF> .

[kumarA8]

This issue is with Magento2.1.3. I am also facing this when trying to add a new option value to 'color' attribute and saving. Error is 'The value of Admin must be unique.' (I am sure what i am inserting is unique)

[azeemism]

@veloraven I am also having the same issue when trying to add a new option to a multiple select attribute. I get the same error message @wclabhinav has indicated.

Other are also having this issue:
http://magento.stackexchange.com/questions/152845/manufacturer-problem-by-adding-brand-name

[azeemism]

@maximehuran Can something be changed in the magento database to allow an affected attribute to save? Do you know of any workaround?

Not only can I not save new option values to this attribute, I cannot save the old ones either...sure they are still there when the attribute is opened but trying to save the attribute again even if nothing is added yields the same error The value of Admin must be unique.

I do not see any issues in the following tables:

eav_attribute_option
eav_attribute_option_value

To my knowledge if you upgrade form 2.1.2 to 2.1.3, before adding a new option value to a product attribute, if you open and save the product attribute first, you may be able to add option values later without this error occurring. But falling short of this process you can get stuck with this ticket issue.

---

UPDATE: Managed to figure this out. There was one repeat option in a list of many, many options. deleting it now allows me to save the product attribute.

[andreame]

same issue in 2.1.4

[maderlock]

I think that 2.1.3 added in some validation to ensure that multiple matching values were not entered as options. That meant that if duplicates already existed then suddenly you could not save the attribute. The only option is to remove duplicates and then you should be able to save. The good news is that you should not get this issue again because of the additional validation.

[azeemism]

Same issue in 2.1.5 which is expected.