如何在TYPO3中禁用图像轮播的缓存

Question

My TYPO3 extension has a lib that generates random 5 images from the total stock, for example out of the 100 images. This is done randomly every time the page is loaded. Only default the TYPO3 cache is enabled so every time the same 5 images are showed. As the lib is in the header of the website (so on every page) I don't want to disable the cache. How can I disable the cache of only this one lib?

TypoScript:

plugin.tx_ExtName.widgets {
  Slider = USER
  Slider {
    userFunc = TYPO3\CMS\Extbase\Core\Bootstrap->run
    vendorName = Name
    extensionName = ExtName
    pluginName = Backend
    controller = Customers
    action = Slider
    switchableControllerActions {
      Customers{
        1 = Slider
      }
    }
    settings =< plugin.tx_ExtName.settings
    persistence =< plugin.tx_ExtName.persistence
    view =< plugin.tx_ExtName.view
  }
}

lib {
    slider < plugin.tx_ExtName.widgets.Slider
}

Answer 1

in your ext_localconf.php there, where you added your plugin make an usage of the 4-th param of configurePlugin method

\TYPO3\CMS\Extbase\Utility\ExtensionUtility::configurePlugin(
    'Vendor.' . $_EXTKEY,
    'PluginName',
    array('Customers' => 'slider',),
    array('Customers' => 'slider',) // List non-cachable action(s)
);

Of course fix the VendorName and PluginName to your own. It will cause that plugin's actions won't be cached, while whole page will be kept in cache still.

Alternative solution

You can also use JavaScript for this, just place an JS array of paths in the source code and choose 5 random items on document load it will allow you to avoid non-cached content.

Answer 2

Alternative solution: plugin.tx_ExtName.widgets.Slider = USER_INT . This makes sure that the Slider plugin is always uncached.