class views_handler_argument_formula

Abstract argument handler for simple formulae.

Child classes of this object should implement summary_argument, at least.

Definition terms:

  • formula: The formula to use for this handler.

Hierarchy

Expanded class hierarchy of views_handler_argument_formula

Related topics

Views argument handlers
Handlers to tell Views how to contextually filter queries.

File

handlers/views_handler_argument_formula.inc, line 18

View source 
class views_handler_argument_formula extends views_handler_argument {
    
    /**
     *
     */
    public $formula = NULL;
    
    /**
     * {@inheritdoc}
     */
    public function construct() {
        parent::construct();
        if (!empty($this->definition['formula'])) {
            $this->formula = $this->definition['formula'];
        }
    }
    
    /**
     *
     */
    public function get_formula() {
        return str_replace('***table***', $this->table_alias, $this->formula);
    }
    
    /**
     * Build the summary query based on a formula.
     */
    public function summary_query() {
        $this->ensure_my_table();
        // Now that our table is secure, get our formula.
        $formula = $this->get_formula();
        // Add the field.
        $this->base_alias = $this->name_alias = $this->query
            ->add_field(NULL, $formula, $this->field);
        $this->query
            ->set_count_field(NULL, $formula, $this->field);
        return $this->summary_basics(FALSE);
    }
    
    /**
     * Build the query based upon the formula.
     */
    public function query($group_by = FALSE) {
        $this->ensure_my_table();
        // Now that our table is secure, get our formula.
        $placeholder = $this->placeholder();
        $formula = $this->get_formula() . ' = ' . $placeholder;
        $placeholders = array(
            $placeholder => $this->argument,
        );
        $this->query
            ->add_where(0, $formula, $placeholders, 'formula');
    }

}

Members

Title Deprecated Modifiers Object type Summary Overriden Title Overrides
views_handler::$handler_type public property The type of the handler, for example filter/footer/field.
views_handler::$query public property Where the $query object will reside:. 1
views_handler::$real_field public property The actual field in the database table, maybe different
on other kind of query plugins/special handlers.
views_handler::$relationship public property The relationship used for this field.
views_handler::$table_alias public property The alias of the table of this handler which is used in the query.
views_handler::$view public property The top object of a view. Overrides views_object::$view
views_handler::accept_exposed_input public function Take input from exposed handlers and assign to this handler, if necessary. 1
views_handler::access public function Check whether current user has access to this handler. 10
views_handler::admin_summary public function Provide text for the administrative summary. 4
views_handler::broken public function Determine if the handler is considered 'broken'. 6
views_handler::can_expose public function Determine if a handler can be exposed. 2
views_handler::case_transform public function Transform a string by a certain method.
views_handler::ensure_my_table public function Ensure the main table for this handler is in the query. This is used
a lot. 		8
views_handler::exposed_form public function Render our chunk of the exposed handler form when selecting. 1
views_handler::exposed_info public function Get information about the exposed form for the form renderer. 1
views_handler::exposed_submit public function Submit the exposed handler form.
views_handler::exposed_validate public function Validate the exposed handler form. 4
views_handler::expose_form public function Form for exposed handler options. 2
views_handler::expose_options public function Set new exposed option defaults when exposed setting is flipped
on. 		2
views_handler::expose_submit public 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 public function Validate the options form. 1
views_handler::extra_options public function Provide defaults for the handler.
views_handler::extra_options_form public function Provide a form for setting options. 1
views_handler::extra_options_submit public 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 public function Validate the options form.
views_handler::get_field public function Shortcut to get a handler's raw field value.
views_handler::get_join public function Get the join object that should be used for this handler.
views_handler::groupby_form public function Provide a form for aggregation settings. 1
views_handler::groupby_form_submit public function Perform any necessary changes to the form values prior to storage.
There is no need for this function to actually store the data. 		1
views_handler::has_extra_options public function If a handler has 'extra options' it will get a little settings widget and
another form called extra_options. 		1
views_handler::is_a_group public function Returns TRUE if the exposed filter works like a grouped filter. 1
views_handler::is_exposed public function Determine if this item is 'exposed', meaning it provides form elements
to let users modify the view.
views_handler::multiple_exposed_input public function Define if the exposed input has to be submitted multiple times.
This is TRUE when exposed filters grouped are using checkboxes as
widgets. 		1
views_handler::placeholder public function Provides a unique placeholders for handlers.
views_handler::post_execute public function Run after the view is executed, before the result is cached. 1
views_handler::pre_query public function Run before the view is built. 1
views_handler::sanitize_value public function Sanitize the value for output.
views_handler::set_relationship public function Called just prior to query(), this lets a handler set up any relationship
it needs.
views_handler::show_expose_button public function Shortcut to display the expose/hide button. 2
views_handler::show_expose_form public function Shortcut to display the exposed options form.
views_handler::store_exposed_input public function If set to remember exposed input in the session, store it there. 1
views_handler::ui_name public function Return a string representing this handler's name in the UI. 9
views_handler::use_group_by public function Provides the handler some groupby. 2
views_handler::validate public function Validates the handler against the complete View. 1
views_handler_argument::$argument public property
views_handler_argument::$name_field public property The field to use for the name to use in the summary.
views_handler_argument::$name_table public property The table to use for the name, if not the same table as the argument.
views_handler_argument::$validator public property
views_handler_argument::$value public property 1
views_handler_argument::default_access_denied public function Default action: access denied.
views_handler_argument::default_action public function Handle the default action, which means our argument wasn't present.
views_handler_argument::default_actions public function List of default behaviors for this argument if the argument is not present. 4
views_handler_argument::default_argument_form public function Provide a form for selecting the default argument. 1
views_handler_argument::default_default public function This just returns true.
views_handler_argument::default_empty public function Default action: empty.
views_handler_argument::default_ignore public function Default action: ignore.
views_handler_argument::default_not_found public function Default action: not found.
views_handler_argument::default_summary public function Default action: summary.
views_handler_argument::default_summary_form public function Form for selecting further summary options.
views_handler_argument::exception_title public function Work out which title to use.
views_handler_argument::export_plugin public function Generic plugin export handler. 1
views_handler_argument::export_summary public function Export handler for summary export.
views_handler_argument::export_validation public function Export handler for validation export.
views_handler_argument::get_default_argument public function Get a default argument, if available. 1
views_handler_argument::get_plugin public function Get the display or row plugin, if it exists.
views_handler_argument::get_sort_name public function Return a description of how the argument would normally be sorted. 5
views_handler_argument::get_title public function Called by the view object to get the title.
views_handler_argument::get_value public function Get the value of this argument.
views_handler_argument::has_default_argument public function Determine if the argument is set to provide a default argument.
views_handler_argument::init public function Init the handler with necessary data. Overrides views_handler::init 3
views_handler_argument::is_exception public function
views_handler_argument::needs_style_plugin public function Determine if the argument needs a style plugin. Overrides views_handler::needs_style_plugin
views_handler_argument::options_form public function Build the options form. Overrides views_handler::options_form 8
views_handler_argument::options_submit public 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 public function Validate the options form. Overrides views_handler::options_validate
views_handler_argument::option_definition public function Information about options for all kinds of purposes will be held here. Overrides views_handler::option_definition 6
views_handler_argument::process_summary_arguments public function Process the summary arguments for display.
views_handler_argument::set_argument public function Set the input for this argument.
views_handler_argument::set_breadcrumb public function Give an argument the opportunity to modify the breadcrumb, if it wants. 3
views_handler_argument::summary_argument public function Provide the argument to use to link from the summary to the next level. 4
views_handler_argument::summary_basics public function Some basic summary behavior.
views_handler_argument::summary_name public function Provides the name to use for the summary. 10
views_handler_argument::summary_name_field public function Add the name field, which is the field displayed in summary queries.
views_handler_argument::summary_sort public function Sorts the summary based upon the user's selection.
views_handler_argument::title public function Get the title this argument will assign the view, given the argument. 13
views_handler_argument::uses_breadcrumb public function Determine if the argument can generate a breadcrumb.
views_handler_argument::validate_arg public function Validate that this argument works. By default, all arguments are valid.
views_handler_argument::validate_argument public function Called by the menu system to validate an argument.
views_handler_argument::validate_argument_basic public function Provide a basic argument validation. 1
views_handler_argument::validate_fail public function How to act if validation fails.
views_handler_argument_formula::$formula public property
views_handler_argument_formula::construct public function Views handlers use a special construct function. Overrides views_handler_argument::construct 6
views_handler_argument_formula::get_formula public function
views_handler_argument_formula::query public function Build the query based upon the formula. Overrides views_handler_argument::query
views_handler_argument_formula::summary_query public function Build the summary query based on a formula. Overrides views_handler_argument::summary_query
views_object::$definition public property Handler's definition.
views_object::$options public property Except for displays, options for the object will be held here. 1
views_object::altered_option_definition public function Collect this handler's option definition and alter them, ready for use.
views_object::destroy public function Destructor. 2
views_object::export_option public function 1
views_object::export_options public function
views_object::export_option_always public function Always exports the option, regardless of the default value.
views_object::options Deprecated public function Set default options on this object. 1
views_object::set_default_options public function Set default options.
views_object::set_definition public function Let the handler know what its full definition is.
views_object::unpack_options public 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 public function