Contains Drupal\Core\Extension\ModuleHandlerInterface.
<?php
/**
* @file
* Contains Drupal\Core\Extension\ModuleHandlerInterface.
*/
namespace Drupal\Core\Extension;
/**
* Interface for classes that manage a set of enabled modules.
*
* Classes implementing this interface work with a fixed list of modules and are
* responsible for loading module files and maintaining information about module
* dependencies and hook implementations.
*/
interface ModuleHandlerInterface {
/**
* Includes a module's .module file.
*
* This prevents including a module more than once.
*
* @param string $name
* The name of the module to load.
*
* @return bool
* TRUE if the item is loaded or has already been loaded.
*/
public function load($name);
/**
* Loads all enabled modules.
*/
public function loadAll();
/**
* Loads all enabled bootstrap modules.
*/
public function loadBootstrapModules();
/**
* Returns whether all modules have been loaded.
*
* @return bool
* A Boolean indicating whether all modules have been loaded. This means all
* modules; the load status of bootstrap modules cannot be checked.
*/
public function isLoaded();
/**
* Reloads all enabled modules.
*/
public function reload();
/**
* Returns a list of currently active modules.
*
* @return array
* An associative array whose keys are the names of the modules and whose
* values are the module filenames.
*/
public function getModuleList();
/**
* Explicitly sets the moduleList property to the passed in array of modules.
*
* @param array $module_list
* An associative array whose keys are the names of the modules and whose
* values are the module filenames.
*/
public function setModuleList(array $module_list = array());
/**
* Retrieves the list of bootstrap modules.
*/
public function getBootstrapModules();
/**
* Determines which modules require and are required by each module.
*
* @param array $modules
* An array of module objects keyed by module name. Each object contains
* information discovered during a Drupal\Core\SystemListing scan.
*
* @return
* The same array with the new keys for each module:
* - requires: An array with the keys being the modules that this module
* requires.
* - required_by: An array with the keys being the modules that will not work
* without this module.
*
* @see \Drupal\Core\SystemListing
*/
public function buildModuleDependencies(array $modules);
/**
* Determines whether a given module is enabled.
*
* @param string $module
* The name of the module (without the .module extension).
*
* @return bool
* TRUE if the module is both installed and enabled.
*/
public function moduleExists($module);
/**
* Loads an include file for each enabled module.
*
* @param string $type
* The include file's type (file extension).
* @param string $name
* (optional) The base file name (without the $type extension). If omitted,
* each module's name is used; i.e., "$module.$type" by default.
*/
public function loadAllIncludes($type, $name = NULL);
/**
* Loads a module include file.
*
* Examples:
* @code
* // Load node.admin.inc from the node module.
* $this->loadInclude('node', 'inc', 'node.admin');
* // Load content_types.inc from the node module.
* $this->loadInclude('node', 'inc', ''content_types');
* @endcode
*
* @param string $module
* The module to which the include file belongs.
* @param string $type
* The include file's type (file extension).
* @param string $name
* (optional) The base file name (without the $type extension). If omitted,
* $module is used; i.e., resulting in "$module.$type" by default.
*
* @return string|false
* The name of the included file, if successful; FALSE otherwise.
*/
public function loadInclude($module, $type, $name = NULL);
/**
* Retrieves a list of hooks that are declared through hook_hook_info().
*
* @return array
* An associative array whose keys are hook names and whose values are an
* associative array containing a group name. The structure of the array
* is the same as the return value of hook_hook_info().
*
* @see hook_hook_info()
*/
public function getHookInfo();
/**
* Determines which modules are implementing a hook.
*
* @param string $hook
* The name of the hook (e.g. "help" or "menu").
*
* @return array
* An array with the names of the modules which are implementing this hook.
*/
public function getImplementations($hook);
/**
* Resets the cached list of hook implementations.
*/
public function resetImplementations();
/**
* Returns whether a given module implements a given hook.
*
* @param string $module
* The name of the module (without the .module extension).
* @param string $hook
* The name of the hook (e.g. "help" or "menu").
*
* @return bool
* TRUE if the module is both installed and enabled, and the hook is
* implemented in that module.
*/
public function implementsHook($module, $hook);
/**
* Invokes a hook in a particular module.
*
* @param string $module
* The name of the module (without the .module extension).
* @param string $hook
* The name of the hook to invoke.
* @param ...
* Arguments to pass to the hook implementation.
*
* @return mixed
* The return value of the hook implementation.
*/
public function invoke($module, $hook, $args = array());
/**
* Invokes a hook in all enabled modules that implement it.
*
* @param string $hook
* The name of the hook to invoke.
* @param ...
* Arguments to pass to the hook.
*
* @return array
* An array of return values of the hook implementations. If modules return
* arrays from their implementations, those are merged into one array.
*/
public function invokeAll($hook, $args = array());
/**
* Passes alterable variables to specific hook_TYPE_alter() implementations.
*
* This dispatch function hands off the passed-in variables to type-specific
* hook_TYPE_alter() implementations in modules. It ensures a consistent
* interface for all altering operations.
*
* A maximum of 2 alterable arguments is supported. In case more arguments need
* to be passed and alterable, modules provide additional variables assigned by
* reference in the last $context argument:
* @code
* $context = array(
* 'alterable' => &$alterable,
* 'unalterable' => $unalterable,
* 'foo' => 'bar',
* );
* $this->alter('mymodule_data', $alterable1, $alterable2, $context);
* @endcode
*
* Note that objects are always passed by reference in PHP5. If it is absolutely
* required that no implementation alters a passed object in $context, then an
* object needs to be cloned:
* @code
* $context = array(
* 'unalterable_object' => clone $object,
* );
* $this->alter('mymodule_data', $data, $context);
* @endcode
*
* @param string|array $type
* A string describing the type of the alterable $data. 'form', 'links',
* 'node_content', and so on are several examples. Alternatively can be an
* array, in which case hook_TYPE_alter() is invoked for each value in the
* array, ordered first by module, and then for each module, in the order of
* values in $type. For example, when Form API is using $this->alter() to
* execute both hook_form_alter() and hook_form_FORM_ID_alter()
* implementations, it passes array('form', 'form_' . $form_id) for $type.
* @param mixed $data
* The variable that will be passed to hook_TYPE_alter() implementations to be
* altered. The type of this variable depends on the value of the $type
* argument. For example, when altering a 'form', $data will be a structured
* array. When altering a 'profile', $data will be an object.
* @param mixed $context1
* (optional) An additional variable that is passed by reference.
* @param mixed $context2
* (optional) An additional variable that is passed by reference. If more
* context needs to be provided to implementations, then this should be an
* associative array as described above.
*/
public function alter($type, &$data, &$context1 = NULL, &$context2 = NULL);
/**
* Enables or installs a given list of modules.
*
* Definitions:
* - "Enabling" is the process of activating a module for use by Drupal.
* - "Disabling" is the process of deactivating a module.
* - "Installing" is the process of enabling it for the first time or after it
* has been uninstalled.
* - "Uninstalling" is the process of removing all traces of a module.
*
* Order of events:
* - Gather and add module dependencies to $module_list (if applicable).
* - For each module that is being enabled:
* - Install module schema and update system registries and caches.
* - If the module is being enabled for the first time or had been
* uninstalled, invoke hook_install() and add it to the list of installed
* modules.
* - Invoke hook_enable().
* - Invoke hook_modules_installed().
* - Invoke hook_modules_enabled().
*
* @param $module_list
* An array of module names.
* @param $enable_dependencies
* If TRUE, dependencies will automatically be added and enabled in the
* correct order. This incurs a significant performance cost, so use FALSE
* if you know $module_list is already complete and in the correct order.
*
* @return
* FALSE if one or more dependencies are missing, TRUE otherwise.
*
* @see hook_install()
* @see hook_enable()
* @see hook_modules_installed()
* @see hook_modules_enabled()
*/
public function enable($module_list, $enable_dependencies = TRUE);
/**
* Disables a given set of modules.
*
* @param $module_list
* An array of module names.
* @param $disable_dependents
* If TRUE, dependent modules will automatically be added and disabled in the
* correct order. This incurs a significant performance cost, so use FALSE
* if you know $module_list is already complete and in the correct order.
*/
public function disable($module_list, $disable_dependents = TRUE);
/**
* Uninstalls a given list of disabled modules.
*
* @param array $module_list
* The modules to uninstall. It is the caller's responsibility to ensure that
* all modules in this list have already been disabled before this function
* is called.
* @param bool $uninstall_dependents
* (optional) If TRUE, the function will check that all modules which depend
* on the passed-in module list either are already uninstalled or contained in
* the list, and it will ensure that the modules are uninstalled in the
* correct order. This incurs a significant performance cost, so use FALSE if
* you know $module_list is already complete and in the correct order.
* Defaults to TRUE.
*
* @return bool
* Returns TRUE if the operation succeeds or FALSE if it aborts due to an
* unsafe condition, namely, $uninstall_dependents is TRUE and a module in
* $module_list has dependents which are not already uninstalled and not also
* included in $module_list).
*/
public function uninstall($module_list = array(), $uninstall_dependents = TRUE);
}
Name | Description |
---|---|
ModuleHandlerInterface | Interface for classes that manage a set of enabled modules. |