Base class for arguments.

The basic argument works for very simple arguments such as nid and uid

Definition terms for this handler:

  • name field: The field to use for the name to use in the summary, which is the displayed output. For example, for the node: nid argument, the argument itself is the nid, but node.title is displayed.
  • name table: The table to use for the name, should it not be in the same table as the argument.
  • empty field name: For arguments that can have no value, such as taxonomy which can have "no term", this is the string which will be displayed for this lack of value. Be sure to use t().
  • validate type: A little used string to allow an argument to restrict which validator is available to just one. Use the validator ID. This probably should not be used at all, and may disappear or change.
  • numeric: If set to TRUE this field is numeric and will use %d instead of %s in queries.


Expanded class hierarchy of views_handler_argument

Related topics


core/modules/views/handlers/, line 37


Contains filters are case sensitive
Namesort descending Modifiers Type Description
views_handler::$table public property The Views name of the table on which this handler effects.
views_handler::$table_alias public property The alias of the table of this handler which is used in the query.
views_handler::accept_exposed_input function Take input from exposed handlers and assign to this handler, if necessary.
views_handler::access function Check whether current user has access to this handler.
views_handler::admin_summary function Provide text for the administrative summary
views_handler::broken function Determine if the handler is considered 'broken', meaning it's a a placeholder used when a handler can't be found.
views_handler::can_expose function Determine if a handler can be exposed.
views_handler::case_transform function Transform a string by a certain method.
views_handler::ensure_my_table function Ensure the main table for this handler is in the query. This is used a lot.
views_handler::exposed_form function Render our chunk of the exposed handler form when selecting
views_handler::exposed_info function Get information about the exposed form for the form renderer.
views_handler::exposed_submit function Submit the exposed handler form
views_handler::exposed_validate function Validate the exposed handler form
views_handler::expose_form function Form for exposed handler options.
views_handler::expose_options function Set new exposed option defaults when exposed setting is flipped on.
views_handler::expose_submit function Perform any necessary changes to the form exposes prior to storage. There is no need for this function to actually store the data.
views_handler::expose_validate function Validate the options form.
views_handler::extra_options function Provide defaults for the handler.
views_handler::extra_options_form function Provide a form for setting options.
views_handler::extra_options_submit function Perform any necessary changes to the form values prior to storage. There is no need for this function to actually store the data.
views_handler::extra_options_validate function Validate the options form.
views_handler::get_field function Shortcut to get a handler's raw field value.
views_handler::get_join function Get the join object that should be used for this handler.
views_handler::groupby_form function Provide a form for aggregation settings.
views_handler::groupby_form_submit function Perform any necessary changes to the form values prior to storage. There is no need for this function to actually store the data.
views_handler::has_extra_options function If a handler has 'extra options' it will get a little settings widget and another form called extra_options.
views_handler::is_a_group function Returns TRUE if the exposed filter works like a grouped filter.
views_handler::is_exposed function Determine if this item is 'exposed', meaning it provides form elements to let users modify the view.
views_handler::multiple_exposed_input function Define if the exposed input has to be submitted multiple times. This is TRUE when exposed filters grouped are using checkboxes as widgets.
views_handler::placeholder function Provides a unique placeholders for handlers.
views_handler::post_execute function Run after the view is executed, before the result is cached.
views_handler::pre_query function Run before the view is built.
views_handler::sanitize_value function Sanitize the value for output.
views_handler::set_relationship function Called just prior to query(), this lets a handler set up any relationship it needs.
views_handler::show_expose_button function Shortcut to display the expose/hide button.
views_handler::show_expose_form function Shortcut to display the exposed options form.
views_handler::store_exposed_input function If set to remember exposed input in the session, store it there.
views_handler::ui_name function Return a string representing this handler's name in the UI.
views_handler::use_group_by function Provides the handler some groupby.
views_handler::validate function Validates the handler against the complete View.
views_handler_argument::construct function Constructor Overrides views_object::construct
views_handler_argument::default_access_denied function Default action: access denied.
views_handler_argument::default_action function Handle the default action, which means our argument wasn't present.
views_handler_argument::default_actions function Provide a list of default behaviors for this argument if the argument is not present.
views_handler_argument::default_argument_form function Provide a form for selecting the default argument when the default action is set to provide default argument.
views_handler_argument::default_default function This just returns true. The view argument builder will know where to find the argument from.
views_handler_argument::default_empty function Default action: empty
views_handler_argument::default_ignore function Default action: ignore.
views_handler_argument::default_not_found function Default action: not found.
views_handler_argument::default_summary function Default action: summary.
views_handler_argument::default_summary_form function Provide a form for selecting further summary options when the default action is set to display one.
views_handler_argument::exception_title function
views_handler_argument::get_default_argument function Get a default argument, if available.
views_handler_argument::get_plugin function Get the display or row plugin, if it exists.
views_handler_argument::get_sort_name function Return a description of how the argument would normally be sorted.
views_handler_argument::get_title function Called by the view object to get the title. This may be set by a validator so we don't necessarily call through to title().
views_handler_argument::get_value function Get the value of this argument.
views_handler_argument::has_default_argument function Determine if the argument is set to provide a default argument.
views_handler_argument::init function init the handler with necessary data. Overrides views_handler::init
views_handler_argument::is_exception function
views_handler_argument::needs_style_plugin function Determine if the argument needs a style plugin. Overrides views_handler::needs_style_plugin
views_handler_argument::options_form function Build the options form. Overrides views_handler::options_form
views_handler_argument::options_submit function Perform any necessary changes to the form values prior to storage. There is no need for this function to actually store the data. Overrides views_handler::options_submit
views_handler_argument::options_validate function Validate the options form. Overrides views_handler::options_validate
views_handler_argument::option_definition function Information about options for all kinds of purposes will be held here. @code 'option_name' => array( Overrides views_handler::option_definition
views_handler_argument::process_summary_arguments function Process the summary arguments for display.
views_handler_argument::query function Set up the query for this argument.
views_handler_argument::set_argument function Set the input for this argument
views_handler_argument::set_breadcrumb function Give an argument the opportunity to modify the breadcrumb, if it wants. This only gets called on displays where a breadcrumb is actually used.
views_handler_argument::summary_argument function Provide the argument to use to link from the summary to the next level; this will be called once per row of a summary, and used as part of $view->get_url().
views_handler_argument::summary_basics function Some basic summary behavior that doesn't need to be repeated as much as code that goes into summary_query()
views_handler_argument::summary_name function Provides the name to use for the summary. By default this is just the name field.
views_handler_argument::summary_name_field function Add the name field, which is the field displayed in summary queries. This is often used when the argument is numeric.
views_handler_argument::summary_query function Build the info for the summary query.
views_handler_argument::summary_sort function Sorts the summary based upon the user's selection. The base variant of this is usually adequte.
views_handler_argument::title function Get the title this argument will assign the view, given the argument.
views_handler_argument::uses_breadcrumb function Determine if the argument can generate a breadcrumb
views_handler_argument::validate_arg function Validate that this argument works. By default, all arguments are valid.
views_handler_argument::validate_argument function Called by the menu system to validate an argument.
views_handler_argument::validate_argument_basic function Provide a basic argument validation.
views_handler_argument::validate_fail function How to act if validation failes
views_object::destroy function
views_object::options Deprecated function Set default options on this object. Called by the constructor in a complex chain to deal with backward compatibility.
views_object::set_default_options function Set default options. For backward compatibility, it sends the options array; this is a feature that will likely disappear at some point.
views_object::set_definition function Let the handler know what its full definition is.
views_object::unpack_options function Unpack options over our existing defaults, drilling down into arrays so that defaults don't get totally blown away.
views_object::unpack_translatable public function Unpack a single option definition.
views_object::unpack_translatables public function Unpacks each handler to store translatable texts.
views_object::_set_option_defaults function