Magento 2.1.6 - Cronjob triggered e-mails ignores theme-fallback (Template, PDF, Customizations,...)

[lfritsche]

Preconditions

1. Magento 2.1.6
2. PHP 7.0

Steps to reproduce

1. We create invoice and shipment programmatically after placing an order with some cronjob routines.
2. After creating the invoice the email should be sent which worked very well until we updated from 2.0.4 to 2.1.6
3. Right no those mails sent within a cronjob routine are free from any design changes within app/design. They are sent in the magento standard design, without any customizations applied, placed unter app/design.
4. Not only the e-mail templates get ignored, but also the PDF templates (I'm using Fooman PDF customizer).
5. Language translation (using de_DE) seems to work properly.

Expected result

1. E-Mail sending should behave like sending them from the backend or on creating an order.
2. E-Mail should rely on custom templates and use third party PDF templates...
3. Magento should not ignore custom .phtml templates.

Actual result

1. Every app/design/../*.phtml file is ignored by magento, if email sending ist triggered by cronjob.
2. Magento uses the standard files and ignores theme-fallback.

Problem:

If you have Magento 2.0.4 and use Single Store Mode = On and set theme in Store>Configuration>Design>Design Theme and update magento to 2.1.x, then $theme not retrieve from config in \Magento\Theme\Model\View\Design::getConfigurationDesignTheme

if ($this->_storeManager->isSingleStoreMode()) {
    $theme = $this->_scopeConfig->getValue(
        self::XML_PATH_THEME_ID,
        ScopeInterface::SCOPE_WEBSITES
    );
} else {
    $theme = (string) $this->_scopeConfig->getValue(
        self::XML_PATH_THEME_ID,
        ScopeInterface::SCOPE_STORE,
        $store
    );
}

[lfritsche]

I had some great help and can provide an update on this:

startEnvironmentEmulation in \Magento\Store\Model\App\Emulation:

$storeTheme = $this->_viewDesign->getConfigurationDesignTheme($area, ['store' => $storeId]);
$this->_viewDesign->setDesignTheme($storeTheme, $area);

If run by cronjob $storeTheme seems to be empty. Within getConfigurationDesignTheme the Single Store Mode seems to involved.

            if ($this->_storeManager->isSingleStoreMode()) {
                $theme = $this->_scopeConfig->getValue(
                    self::XML_PATH_THEME_ID,
                    ScopeInterface::SCOPE_WEBSITES
                );
            } else {
                $theme = (string) $this->_scopeConfig->getValue(
                    self::XML_PATH_THEME_ID,
                    ScopeInterface::SCOPE_STORE,
                    $store
                );
            }

I turned SingleStore Mode OFF and everything worked as expected again. Any Idea why getConfigurationDesignTheme doesn't respond with a valid $storeTheme, if the Single Store Mode is turned on?

Thank you!

[magento-engcom-team]

@lfritsche Thanks for reporting this issue. This is migration bug. You can use "Single Store Mode" = "Yes" after resave your theme configuration in: Content>Design>Configuration

[magento-engcom-team]

We update description:

Problem:

If you have Magento 2.0.4 and use Single Store Mode = On and set theme in Store>Configuration>Design>Design Theme and update magento to 2.1.x, then $theme not retrieve from config in \Magento\Theme\Model\View\Design::getConfigurationDesignTheme

if ($this->_storeManager->isSingleStoreMode()) {
    $theme = $this->_scopeConfig->getValue(
        self::XML_PATH_THEME_ID,
        ScopeInterface::SCOPE_WEBSITES
    );
} else {
    $theme = (string) $this->_scopeConfig->getValue(
        self::XML_PATH_THEME_ID,
        ScopeInterface::SCOPE_STORE,
        $store
    );
}

[magento-engcom-team]

@lfritsche, thank you for your report. We've created internal ticket(s) MAGETWO-80156 to track progress on the issue.

[serhii-balko]

Hi @lfritsche This issue already fixed in 2.1.10 version

[JeremyPlease]

I am experiencing this issue in Magento CE 2.2.5.

Debugging the code, I see that from cron jobs, the following code returns nothing for the theme id:

$theme = $this->_scopeConfig->getValue(
    self::XML_PATH_THEME_ID,
    ScopeInterface::SCOPE_WEBSITES
);

However, the same code not triggered by a cronjob gets the theme id correctly.

@serhii-balko and @magento-engcom-team Was this fixed in Magento 2.2.x? Can you link to the commit that has the fix?

Thanks!

[jfmontanaro]

@JeremyPlease I had the same issue in 2.2.5. Here's the solution that worked for me:

• Turn off single-store mode
• Go to Content->Design->Configuration
• Edit the top row (the one that has no theme name listed)
• Set the theme to whatever custom theme you're using
• Turn single-store mode back on.

[JeremyPlease]

Thanks for the suggestion @jfmontanaro.

I ended up working around this by moving the email template to an extension and using etc/email_templates.xml to override the email template.