ViewHelperResolver
class ViewHelperResolver extends ViewHelperResolver (View source)
Class ViewHelperResolver
Class whose purpose is dedicated to resolving classes which can be used as ViewHelpers and ExpressionNodes in Fluid.
In addition to modifying the behavior or the parser when legacy mode is requested, this ViewHelperResolver is also made capable of "mixing" two different ViewHelper namespaces to effectively create aliases for the Fluid core ViewHelpers to be loaded in the (TYPO3|Neos) scope as well.
Properties
| protected ObjectManagerInterface | $objectManager | ||
| protected PackageManager | $packageManager | ||
| protected array | $namespaces | Custom merged namespace for Neos Fluid adapter; will look for classes in both namespaces starting from the bottom. |
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| protected array | $namespacesFromConfiguration |
Methods
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Add a PHP namespace where ViewHelpers can be found and give it an alias/identifier.
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Details
initializeObject($reason)
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ViewHelperInterface
createViewHelperInstanceFromClassName(string $viewHelperClassName)
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void
addNamespace(string $identifier, string|array $phpNamespace)
Add a PHP namespace where ViewHelpers can be found and give it an alias/identifier.
The provided namespace can be either a single namespace or an array of namespaces, as strings. The identifier/alias is always a single, alpha-numeric ASCII string.
Calling this method multiple times with different PHP namespaces for the same alias causes that namespace to be extended, meaning that the PHP namespace you provide second, third etc. are also used in lookups and are used first, so that if any of the namespaces you add contains a class placed and named the same way as one that exists in an earlier namespace, then your class gets used instead of the earlier one.
Example:
$resolver->addNamespace('my', 'My\Package\ViewHelpers'); // Any ViewHelpers under this namespace can now be accessed using for example {my:example()} // Now, assuming you also have an ExampleViewHelper class in a different // namespace and wish to make that ExampleViewHelper override the other: $resolver->addNamespace('my', 'My\OtherPackage\ViewHelpers'); // Now, since ExampleViewHelper exists in both places but the // My\OtherPackage\ViewHelpers namespace was added last, Fluid // will find and use My\OtherPackage\ViewHelpers\ExampleViewHelper.
Alternatively, setNamespaces() can be used to reset and redefine all previously added namespaces - which is great for cases where you need to remove or replace previously added namespaces. Be aware that setNamespaces() also removes the default "f" namespace, so when you use this method you should always include the "f" namespace.
protected
addNamespaceInternal(string $identifier, string $phpNamespace)
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