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<?php
/**
* @file
* Hooks provided by the User module.
*/
/**
* @addtogroup hooks
* @{
*/
/**
* Act on user objects when loaded from the database.
*
* Due to the static cache in user_load_multiple() you should not use this
* hook to modify the user properties returned by the {users} table itself
* since this may result in unreliable results when loading from cache.
*
* @param $users
* An array of user objects, indexed by uid.
*
* @see user_load_multiple()
* @see profile_user_load()
*/
function hook_user_load($users) {
$result = db_query('SELECT uid, foo FROM {my_table} WHERE uid IN (:uids)', array(':uids' => array_keys($users)));
foreach ($result as $record) {
$users[$record->uid]->foo = $record->foo;
}
}
/**
* Respond to user deletion.
*
* This hook is invoked from user_delete_multiple() before field_attach_delete()
* is called and before users are actually removed from the database.
*
* Modules should additionally implement hook_user_cancel() to process stored
* user data for other account cancellation methods.
*
* @param $account
* The account that is being deleted.
*
* @see user_delete_multiple()
*/
function hook_user_delete($account) {
db_delete('mytable')
->condition('uid', $account->uid)
->execute();
}
/**
* Act on user account cancellations.
*
* This hook is invoked from user_cancel() before a user account is canceled.
* Depending on the account cancellation method, the module should either do
* nothing, unpublish content, or anonymize content. See user_cancel_methods()
* for the list of default account cancellation methods provided by User module.
* Modules may add further methods via hook_user_cancel_methods_alter().
*
* This hook is NOT invoked for the 'user_cancel_delete' account cancellation
* method. To react on this method, implement hook_user_delete() instead.
*
* Expensive operations should be added to the global account cancellation batch
* by using batch_set().
*
* @param $edit
* The array of form values submitted by the user.
* @param $account
* The user object on which the operation is being performed.
* @param $method
* The account cancellation method.
*
* @see user_cancel_methods()
* @see hook_user_cancel_methods_alter()
*/
function hook_user_cancel($edit, $account, $method) {
switch ($method) {
case 'user_cancel_block_unpublish':
// Unpublish nodes (current revisions).
module_load_include('inc', 'node', 'node.admin');
$nodes = db_select('node', 'n')
->fields('n', array('nid'))
->condition('uid', $account->uid)
->execute()
->fetchCol();
node_mass_update($nodes, array('status' => 0));
break;
case 'user_cancel_reassign':
// Anonymize nodes (current revisions).
module_load_include('inc', 'node', 'node.admin');
$nodes = db_select('node', 'n')
->fields('n', array('nid'))
->condition('uid', $account->uid)
->execute()
->fetchCol();
node_mass_update($nodes, array('uid' => 0));
// Anonymize old revisions.
db_update('node_revision')
->fields(array('uid' => 0))
->condition('uid', $account->uid)
->execute();
// Clean history.
db_delete('history')
->condition('uid', $account->uid)
->execute();
break;
}
}
/**
* Modify account cancellation methods.
*
* By implementing this hook, modules are able to add, customize, or remove
* account cancellation methods. All defined methods are turned into radio
* button form elements by user_cancel_methods() after this hook is invoked.
* The following properties can be defined for each method:
* - title: The radio button's title.
* - description: (optional) A description to display on the confirmation form
* if the user is not allowed to select the account cancellation method. The
* description is NOT used for the radio button, but instead should provide
* additional explanation to the user seeking to cancel their account.
* - access: (optional) A boolean value indicating whether the user can access
* a method. If #access is defined, the method cannot be configured as default
* method.
*
* @param $methods
* An array containing user account cancellation methods, keyed by method id.
*
* @see user_cancel_methods()
* @see user_cancel_confirm_form()
*/
function hook_user_cancel_methods_alter(&$methods) {
// Limit access to disable account and unpublish content method.
$methods['user_cancel_block_unpublish']['access'] = user_access('administer site configuration');
// Remove the content re-assigning method.
unset($methods['user_cancel_reassign']);
// Add a custom zero-out method.
$methods['mymodule_zero_out'] = array(
'title' => t('Delete the account and remove all content.'),
'description' => t('All your content will be replaced by empty strings.'),
// access should be used for administrative methods only.
'access' => user_access('access zero-out account cancellation method'),
);
}
/**
* Add mass user operations.
*
* This hook enables modules to inject custom operations into the mass operations
* dropdown found at admin/people, by associating a callback function with
* the operation, which is called when the form is submitted. The callback function
* receives one initial argument, which is an array of the checked users.
*
* @return
* An array of operations. Each operation is an associative array that may
* contain the following key-value pairs:
* - "label": Required. The label for the operation, displayed in the dropdown menu.
* - "callback": Required. The function to call for the operation.
* - "callback arguments": Optional. An array of additional arguments to pass to
* the callback function.
*
*/
function hook_user_operations() {
$operations = array(
'unblock' => array(
'label' => t('Unblock the selected users'),
'callback' => 'user_user_operations_unblock',
),
'block' => array(
'label' => t('Block the selected users'),
'callback' => 'user_user_operations_block',
),
'cancel' => array(
'label' => t('Cancel the selected user accounts'),
),
);
return $operations;
}
/**
* Retrieve a list of user setting or profile information categories.
*
* @return
* An array of associative arrays. Each inner array has elements:
* - "name": The internal name of the category.
* - "title": The human-readable, localized name of the category.
* - "weight": An integer specifying the category's sort ordering.
* - "access callback": Name of the access callback function to use to
* determine whether the user can edit the category. Defaults to using
* user_edit_access(). See hook_menu() for more information on access
* callbacks.
* - "access arguments": Arguments for the access callback function. Defaults
* to array(1).
*/
function hook_user_categories() {
return array(array(
'name' => 'account',
'title' => t('Account settings'),
'weight' => 1,
));
}
/**
* A user account is about to be created or updated.
*
* This hook is primarily intended for modules that want to store properties in
* the serialized {users}.data column, which is automatically loaded whenever a
* user account object is loaded, modules may add to $edit['data'] in order
* to have their data serialized on save.
*
* @param $edit
* The array of form values submitted by the user.
* @param $account
* The user object on which the operation is performed.
* @param $category
* The active category of user information being edited.
*
* @see hook_user_insert()
* @see hook_user_update()
*/
function hook_user_presave(&$edit, $account, $category) {
// Make sure that our form value 'mymodule_foo' is stored as
// 'mymodule_bar' in the 'data' (serialized) column.
if (isset($edit['mymodule_foo'])) {
$edit['data']['mymodule_bar'] = $edit['mymodule_foo'];
}
}
/**
* A user account was created.
*
* The module should save its custom additions to the user object into the
* database.
*
* @param $edit
* The array of form values submitted by the user.
* @param $account
* The user object on which the operation is being performed.
* @param $category
* The active category of user information being edited.
*
* @see hook_user_presave()
* @see hook_user_update()
*/
function hook_user_insert(&$edit, $account, $category) {
db_insert('mytable')
->fields(array(
'myfield' => $edit['myfield'],
'uid' => $account->uid,
))
->execute();
}
/**
* A user account was updated.
*
* Modules may use this hook to update their user data in a custom storage
* after a user account has been updated.
*
* @param $edit
* The array of form values submitted by the user.
* @param $account
* The user object on which the operation is performed.
* @param $category
* The active category of user information being edited.
*
* @see hook_user_presave()
* @see hook_user_insert()
*/
function hook_user_update(&$edit, $account, $category) {
db_insert('user_changes')
->fields(array(
'uid' => $account->uid,
'changed' => time(),
))
->execute();
}
/**
* The user just logged in.
*
* @param $edit
* The array of form values submitted by the user.
* @param $account
* The user object on which the operation was just performed.
*/
function hook_user_login(&$edit, $account) {
// If the user has a NULL time zone, notify them to set a time zone.
if (!$account->timezone && variable_get('configurable_timezones', 1) && variable_get('empty_timezone_message', 0)) {
drupal_set_message(t('Configure your <a href="@user-edit">account time zone setting</a>.', array('@user-edit' => url("user/$account->uid/edit", array('query' => drupal_get_destination(), 'fragment' => 'edit-timezone')))));
}
}
/**
* The user just logged out.
*
* @param $account
* The user object on which the operation was just performed.
*/
function hook_user_logout($account) {
db_insert('logouts')
->fields(array(
'uid' => $account->uid,
'time' => time(),
))
->execute();
}
/**
* The user's account information is being displayed.
*
* The module should format its custom additions for display and add them to the
* $account->content array.
*
* @param $account
* The user object on which the operation is being performed.
* @param $view_mode
* View mode, e.g. 'full'.
* @param $langcode
* The language code used for rendering.
*
* @see hook_user_view_alter()
* @see hook_entity_view()
*/
function hook_user_view($account, $view_mode, $langcode) {
if (user_access('create blog content', $account)) {
$account->content['summary']['blog'] = array(
'#type' => 'user_profile_item',
'#title' => t('Blog'),
'#markup' => l(t('View recent blog entries'), "blog/$account->uid", array('attributes' => array('title' => t("Read !username's latest blog entries.", array('!username' => format_username($account)))))),
'#attributes' => array('class' => array('blog')),
);
}
}
/**
* The user was built; the module may modify the structured content.
*
* This hook is called after the content has been assembled in a structured array
* and may be used for doing processing which requires that the complete user
* content structure has been built.
*
* If the module wishes to act on the rendered HTML of the user rather than the
* structured content array, it may use this hook to add a #post_render callback.
* Alternatively, it could also implement hook_preprocess_user_profile(). See
* drupal_render() and theme() documentation respectively for details.
*
* @param $build
* A renderable array representing the user.
*
* @see user_view()
* @see hook_entity_view_alter()
*/
function hook_user_view_alter(&$build) {
// Check for the existence of a field added by another module.
if (isset($build['an_additional_field'])) {
// Change its weight.
$build['an_additional_field']['#weight'] = -10;
}
// Add a #post_render callback to act on the rendered HTML of the user.
$build['#post_render'][] = 'my_module_user_post_render';
}
/**
* Inform other modules that a user role is about to be saved.
*
* Modules implementing this hook can act on the user role object before
* it has been saved to the database.
*
* @param $role
* A user role object.
*
* @see hook_user_role_insert()
* @see hook_user_role_update()
*/
function hook_user_role_presave($role) {
// Set a UUID for the user role if it doesn't already exist
if (empty($role->uuid)) {
$role->uuid = uuid_uuid();
}
}
/**
* Inform other modules that a user role has been added.
*
* Modules implementing this hook can act on the user role object when saved to
* the database. It's recommended that you implement this hook if your module
* adds additional data to user roles object. The module should save its custom
* additions to the database.
*
* @param $role
* A user role object.
*/
function hook_user_role_insert($role) {
// Save extra fields provided by the module to user roles.
db_insert('my_module_table')
->fields(array(
'rid' => $role->rid,
'role_description' => $role->description,
))
->execute();
}
/**
* Inform other modules that a user role has been updated.
*
* Modules implementing this hook can act on the user role object when updated.
* It's recommended that you implement this hook if your module adds additional
* data to user roles object. The module should save its custom additions to
* the database.
*
* @param $role
* A user role object.
*/
function hook_user_role_update($role) {
// Save extra fields provided by the module to user roles.
db_merge('my_module_table')
->key(array('rid' => $role->rid))
->fields(array(
'role_description' => $role->description
))
->execute();
}
/**
* Inform other modules that a user role has been deleted.
*
* This hook allows you act when a user role has been deleted.
* If your module stores references to roles, it's recommended that you
* implement this hook and delete existing instances of the deleted role
* in your module database tables.
*
* @param $role
* The $role object being deleted.
*/
function hook_user_role_delete($role) {
// Delete existing instances of the deleted role.
db_delete('my_module_table')
->condition('rid', $role->rid)
->execute();
}
/**
* @} End of "addtogroup hooks".
*/
