Yes, in Yii, the configuration for the «modules» component must contain a «class» element.
In Yii, modules are self-contained components that encapsulate a set of functionality within an application. They allow for modular development, where different parts of the application can be developed independently and then assembled together.
To configure modules in Yii, you need to define the modules array in the application configuration file, typically located at config/web.php or config/main.php. Inside this array, you define each module as a key-value pair, where the key is the module ID and the value is an array of module settings.
One of the required settings for a module is the "class" element, which specifies the fully qualified class name for the module class. This tells Yii which class to use as the module's implementation.
For example, let's say we have a module called "admin" that encapsulates the administrative functionality of our application. We would configure it in the application configuration file like this:
'modules' => [
'admin' => [
'class' => 'appmodulesadminModule',
// other module settings...
],
// other modules...
],
In this example, we have defined the "admin" module and set its class to 'appmodulesadminModule'. The 'appmodulesadminModule' string is the fully qualified class name of the module class. The actual module class should be located at the specified namespace and extend the yiibaseModule class.
By including the "class" element in the module configuration, Yii knows how to instantiate the module and make it available for use within the application. This allows you to access the module's functionality through its provided controllers, models, and views.
It's important to note that the "class" element is mandatory for module configuration in Yii. If you omit it, Yii will not be able to instantiate the module properly, and you will likely encounter errors when trying to access the module or its functionality.
In summary, the "class" element is a required part of the module configuration in Yii. It specifies the fully qualified class name of the module class and allows Yii to instantiate and use the module within the application.