Get the applicable namespace prefix for a component section. Possible sections:
auto Auto-detect which is the current component section
inverse The inverse area than auto
site Frontend
admin Backend
| public getNamespacePrefix ( string $section = 'auto' ) : string | ||
| $section | string | The section you want to get information for |
| Результат | string | The namespace prefix for the component's classes, e.g. \Foobar\Example\Site\ |
/**
* Load a helper file
*
* @param string $helperClass The last part of the name of the helper
* class.
*
* @return void
*
* @deprecated 3.0 Just use the class in your code. That's what the autoloader is for.
*/
public function loadHelper($helperClass = null)
{
// Get the helper class name
$className = '\\' . $this->container->getNamespacePrefix() . 'Helper\\' . ucfirst($helperClass);
// This trick autoloads the helper class. We can't instantiate it as
// helpers are (supposed to be) abstract classes with static method
// interfaces.
class_exists($className);
}
/**
* Load a class for one of the form's entities of a particular type.
* Currently, it makes sense to use this method for the "field" and "rule" entities
* (but you can support more entities in your subclass).
*
* @param string $entity One of the form entities (field, header or rule).
* @param string $type Type of an entity.
*
* @return mixed Class name on success or false otherwise.
*
* @since 2.0
*/
public function loadClass($entity, $type)
{
// Get the prefixes for namespaced classes (FOF3 way)
$namespacedPrefixes = array($this->container->getNamespacePrefix(), 'FOF30\\');
// Get the prefixes for non-namespaced classes (FOF2 and Joomla! way)
$plainPrefixes = array('J');
// If the type is given as prefix.type add the custom type into the two prefix arrays
if (strpos($type, '.')) {
list($prefix, $type) = explode('.', $type);
array_unshift($plainPrefixes, $prefix);
array_unshift($namespacedPrefixes, $prefix);
}
// First try to find the namespaced class
foreach ($namespacedPrefixes as $prefix) {
$class = rtrim($prefix, '\\') . '\\Form\\' . ucfirst($entity) . '\\' . ucfirst($type);
if (class_exists($class, true)) {
return $class;
}
}
// TODO The rest of the code is legacy and will be removed in a future version
// Then try to find the non-namespaced class
$classes = array();
foreach ($plainPrefixes as $prefix) {
$class = \JString::ucfirst($prefix, '_') . 'Form' . \JString::ucfirst($entity, '_') . \JString::ucfirst($type, '_');
if (class_exists($class, true)) {
return $class;
}
$classes[] = $class;
}
// Get the field search path array.
$reflector = new \ReflectionClass('\\JFormHelper');
$addPathMethod = $reflector->getMethod('addPath');
$addPathMethod->setAccessible(true);
$paths = $addPathMethod->invoke(null, $entity);
// If the type is complex, add the base type to the paths.
if ($pos = strpos($type, '_')) {
// Add the complex type prefix to the paths.
for ($i = 0, $n = count($paths); $i < $n; $i++) {
// Derive the new path.
$path = $paths[$i] . '/' . strtolower(substr($type, 0, $pos));
// If the path does not exist, add it.
if (!in_array($path, $paths)) {
$paths[] = $path;
}
}
// Break off the end of the complex type.
$type = substr($type, $pos + 1);
}
// Try to find the class file.
$type = strtolower($type) . '.php';
foreach ($paths as $path) {
if ($file = \JPath::find($path, $type)) {
require_once $file;
foreach ($classes as $class) {
if (class_exists($class, false)) {
return $class;
}
}
}
}
return false;
}
