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Developer Documentation
- Bug fixes for general core bugs in 3.11.x will end 14 Nov 2022 (12 months plus 6 months extension).
- Bug fixes for security issues in 3.11.x will end 13 Nov 2023 (18 months plus 12 months extension).
- PHP version: minimum PHP 7.3.0 Note: minimum PHP version has increased since Moodle 3.10. PHP 7.4.x is supported too.
/user/selector/ -> lib.php (source)
Differences Between: [Versions 310 and 311] [Versions 311 and 400] [Versions 311 and 401] [Versions 311 and 402] [Versions 311 and 403] [Versions 39 and 311]
Code for ajax user selectors.
| Copyright: | 1999 onwards Martin Dougiamas http://dougiamas.com |
| License: | http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later |
| File Size: | 990 lines (39 kb) |
| Included or required: | 0 times |
| Referenced: | 0 times |
| Includes or requires: | 0 files |
Defines 4 classes
user_selector_base:: (27 methods):
__construct()
exclude()
clear_exclusions()
get_exclusions()
get_selected_users()
get_selected_user()
invalidate_selected_users()
display()
set_rows()
get_rows()
set_multiselect()
is_multiselect()
get_name()
set_extra_fields()
get_options()
is_validating()
load_selected_users()
required_fields_sql()
search_sql()
too_many_results()
output_options()
output_optgroup()
output_user()
search_button_caption()
initialise_option()
option_checkbox()
initialise_javascript()
groups_user_selector_base:: (3 methods):
__construct()
get_options()
convert_array_format()
group_members_selector:: (1 method):
find_users()
group_non_members_selector:: (5 methods):
output_user()
get_js_module()
print_user_summaries()
get_user_summaries()
find_users()
Class: user_selector_base - X-Ref
Base class for user selectors.In your theme, you must give each user-selector a defined width. If the
user selector has name="myid", then the div myid_wrapper must have a width
specified.
| __construct($name, $options = array() X-Ref |
| Constructor. Each subclass must have a constructor with this signature. param: string $name the control name/id for use in the HTML. param: array $options other options needed to construct this selector. |
| exclude($arrayofuserids) X-Ref |
| All to the list of user ids that this control will not select. For example, on the role assign page, we do not list the users who already have the role in question. param: array $arrayofuserids the user ids to exclude. |
| clear_exclusions() X-Ref |
| Clear the list of excluded user ids. |
| get_exclusions() X-Ref |
| Returns the list of user ids that this control will not select. return: array the list of user ids that this control will not select. |
| get_selected_users() X-Ref |
| The users that were selected. This is a more sophisticated version of optional_param($this->name, array(), PARAM_INT) that validates the returned list of ids against the rules for this user selector. return: array of user objects. |
| get_selected_user() X-Ref |
| Convenience method for when multiselect is false (throws an exception if not). return: object the selected user object, or null if none. |
| invalidate_selected_users() X-Ref |
| Invalidates the list of selected users. If you update the database in such a way that it is likely to change the list of users that this component is allowed to select from, then you must call this method. For example, on the role assign page, after you have assigned some roles to some users, you should call this. |
| display($return = false) X-Ref |
| Output this user_selector as HTML. param: boolean $return if true, return the HTML as a string instead of outputting it. return: mixed if $return is true, returns the HTML as a string, otherwise returns nothing. |
| set_rows($numrows) X-Ref |
| The height this control will be displayed, in rows. param: integer $numrows the desired height. |
| get_rows() X-Ref |
| Returns the number of rows to display in this control. return: integer the height this control will be displayed, in rows. |
| set_multiselect($multiselect) X-Ref |
| Whether this control will allow selection of many, or just one user. param: boolean $multiselect true = allow multiple selection. |
| is_multiselect() X-Ref |
| Returns true is multiselect should be allowed. return: boolean whether this control will allow selection of more than one user. |
| get_name() X-Ref |
| Returns the id/name of this control. return: string the id/name that this control will have in the HTML. |
| set_extra_fields($fields) X-Ref |
| Set the user fields that are displayed in the selector in addition to the user's name. param: array $fields a list of field names that exist in the user table. |
| get_options() X-Ref |
| Note: this function must be implemented if you use the search ajax field (e.g. set $options['file'] = '/admin/filecontainingyourclass.php';) return: array the options needed to recreate this user_selector. |
| is_validating() X-Ref |
| Returns true if this control is validating a list of users. return: boolean if true, we are validating a list of selected users, |
| load_selected_users() X-Ref |
| Get the list of users that were selected by doing optional_param then validating the result. return: array of user objects. |
| required_fields_sql(string $u) X-Ref |
| Returns SQL to select required fields. param: string $u the table alias for the user table in the query being return: string fragment of SQL to go in the select list of the query. |
| search_sql(string $search, string $u) X-Ref |
| Returns an array with SQL to perform a search and the params that go into it. param: string $search the text to search for. param: string $u the table alias for the user table in the query being return: array an array with two elements, a fragment of SQL to go in the |
| too_many_results($search, $count) X-Ref |
| Used to generate a nice message when there are too many users to show. The message includes the number of users that currently match, and the text of the message depends on whether the search term is non-blank. param: string $search the search term, as passed in to the find users method. param: int $count the number of users that currently match. return: array in the right format to return from the find_users method. |
| output_options($groupedusers, $search) X-Ref |
| Output the list of <optgroup>s and <options>s that go inside the select. This method should do the same as the JavaScript method user_selector.prototype.handle_response. param: array $groupedusers an array, as returned by find_users. param: string $search return: string HTML code. |
| output_optgroup($groupname, $users, $select) X-Ref |
| Output one particular optgroup. Used by the preceding function output_options. param: string $groupname the label for this optgroup. param: array $users the users to put in this optgroup. param: boolean $select if true, select the users in this group. return: string HTML code. |
| output_user($user) X-Ref |
| Convert a user object to a string suitable for displaying as an option in the list box. param: object $user the user to display. return: string a string representation of the user. |
| search_button_caption() X-Ref |
| Returns the string to use for the search button caption. return: string the caption for the search button. |
| initialise_option($name, $default) X-Ref |
| Initialise one of the option checkboxes, either from the request, or failing that from the user_preferences table, or finally from the given default. param: string $name param: mixed $default return: mixed|null|string |
| option_checkbox($name, $on, $label) X-Ref |
| Output one of the options checkboxes. param: string $name param: string $on param: string $label return: string |
| initialise_javascript($search) X-Ref |
| Initialises JS for this control. param: string $search return: string any HTML needed here. |
Class: groups_user_selector_base - X-Ref
Base class to avoid duplicating code.| __construct($name, $options) X-Ref |
| Constructor. param: string $name control name param: array $options should have two elements with keys groupid and courseid. |
| get_options() X-Ref |
| Returns options for this selector. return: array |
| convert_array_format($roles, $search) X-Ref |
| Creates an organised array from given data. param: array $roles array in the format returned by groups_calculate_role_people. param: string $search return: array array in the format find_users is supposed to return. |
Class: group_members_selector - X-Ref
User selector subclass for the list of users who are in a certain group.Used on the add group memebers page.
| find_users($search) X-Ref |
| Finds users to display in this control. param: string $search return: array |
Class: group_non_members_selector - X-Ref
User selector subclass for the list of users who are not in a certain group.Used on the add group members page.
| output_user($user) X-Ref |
| Output user. param: stdClass $user return: string |
| get_js_module() X-Ref |
| Returns the user selector JavaScript module return: array |
| print_user_summaries($courseid) X-Ref |
| Creates a global JS variable (userSummaries) that is used by the group selector to print related information when the user clicks on a user in the groups UI. Used by /group/clientlib.js param: int $courseid |
| get_user_summaries($courseid) X-Ref |
| Construct HTML lists of group-memberships of the current set of users. Used in user/selector/search.php to repopulate the userSummaries JS global that is created in self::print_user_summaries() above. param: int $courseid The course return: string[] Array of HTML lists of groups. |
| find_users($search) X-Ref |
| Finds users to display in this control. param: string $search return: array |
