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Menu Updates

OroNavigationBundle introduces a mechanism called Menu Updates that allows creating and modifying menu items in different scopes using back-office UI.

The architecture of this mechanism consists of the following:

1. Entity class Oro\Bundle\CommerceMenuBundle\Entity\MenuUpdate to store the changes made to menu items.

2. Menu builder Oro\Bundle\NavigationBundle\Menu\MenuUpdateBuilder that applies menu updates for the current scope.

3. Menu updates provider Oro\Bundle\NavigationBundle\Provider\MenuUpdateProvider that provides menu updates for the current scope.

4. Menu update applier Oro\Bundle\NavigationBundle\MenuUpdate\Applier\MenuUpdateApplier that applies each menu update.

5. Menu-update-to-menu-item propagator Oro\Bundle\NavigationBundle\MenuUpdate\Propagator\ToMenuItem\CompositePropagator that propagates the data stored in a MenuUpdate into the corresponding menu item.

Menu Update Scopes

Oro applications enable you to configure back-office menus in 3 scopes: global, organization, and user. For user documentation, see Edit back-office menus.

Menu Update Types

Depending on how menus were created, there are three types of updates:

• system

• custom

• synthetic

The item menu affected by the menu update is additionally marked with an extra option indicating the type of the update, so the system / custom / synthetic concept can be applied not only to the menu update, but also the menu item.

System Type

This menu update is aimed at modifying a menu item initially created by the application via navigation.yml or a menu builder. Menu update is treated as system if both custom and synthetic fields are set to false. A system menu update is created when a user either submits the form of an already existing menu item, moves the menu item, or toggles the menu item display using Show / Hide buttons in the back-office menu management UI. The menu update of the system type cannot modify a non-existing menu item and should not create a new one, so if the target menu item from which the menu update was initially created is missing, then the corresponding changes enclosed in the menu update become lost.

Custom Type

This menu update aims to create a new menu item or modify one if it is already created by a custom menu update in the parent scope. Menu items affected by these menu updates are marked with the Oro\Bundle\NavigationBundle\Entity\MenuUpdateInterface::IS_CUSTOM extra option. The menu update is treated as custom if the custom field is set to true. A custom menu update is created when a user hits the “Create Menu Item” button and submits the form in the back-office menu management UI.

Synthetic Type

This menu update modifies or creates a new menu item if it does not already exist. Menu items affected by these menu updates are marked with the Oro\Bundle\NavigationBundle\Entity\MenuUpdateInterface::IS_SYNTHETIC extra option. Menu update is treated as synthetic if the synthetic field is set to true. A synthetic menu update is created when a user either submits the form, moves the menu item, or toggles the menu item display of an already existing menu item that can become synthetic in the back-office menu management UI. The ability of a menu item to produce a synthetic menu update can be controlled by a propagator, which is a class that implements the Oro\Bundle\NavigationBundle\MenuUpdate\Propagator\ToMenuUpdate\MenuItemToMenuUpdatePropagatorInterface interface. This type is not used out-of-the-box in OroPlatform.

Unlike the system menu update, the synthetic one can create a new menu item if the target one is missing, and in contrast to the custom menu update, the synthetic one can be created only from a system menu item (e.g., by moving the menu item or toggling the menu item display using Show / Hide buttons in the back-office menu management UI).

Menu Update Builder

Oro\Bundle\NavigationBundle\Menu\MenuUpdateBuilder menu builder collects all menu updates for the current scope from the Oro\Bundle\NavigationBundle\Provider\MenuUpdateProvider provider and applies them to a menu using Menu Update Applier.

After all menu updates are applied, the menu builder dispatches the Oro\Bundle\NavigationBundle\Event\MenuUpdatesApplyAfterEvent event with the context object Oro\Bundle\NavigationBundle\MenuUpdate\Applier\Model\MenuUpdateApplierContext with applied menu updates and changes made to the menu.

Menu Update Applier

Oro\Bundle\NavigationBundle\MenuUpdate\Applier\MenuUpdateApplier is responsible for applying a specific Menu Update to menu: create, update or move a specific menu item. The responsibility of applying other data (e.g. title, description, etc.) is delegated to the propagator Oro\Bundle\NavigationBundle\MenuUpdate\Propagator\ToMenuItem\CompositePropagator.

MenuUpdateApplier stores the following details of the menu update in context object Oro\Bundle\NavigationBundle\MenuUpdate\Applier\Model\MenuUpdateApplierContext:

1. Created menu items.

2. Updated menu items.

3. Lost menu items: menu items created by a system menu update, but the target system menu items do not exist anymore.

4. Orphaned menu items: menu items without a parent menu item (parent menu item does not exist).

Note

Orphaned menu items are placed into the menu root by Oro\Bundle\NavigationBundle\Menu\OrphanItemsBuilder at the end of the menu builders chain.

Note

Lost menu items are removed from the menu by Oro\Bundle\NavigationBundle\Menu\LostItemsBuilder at the end of the menu builders chain.

Menu Update to Menu Item Propagator

The propagator is represented by a composite class Oro\Bundle\NavigationBundle\MenuUpdate\Propagator\ToMenuItem\CompositePropagator that calls inner propagators:

1. Oro\Bundle\NavigationBundle\MenuUpdate\Propagator\ToMenuItem\BasicPropagator: fills the menu item label, URI, display (shown/hidden), link attributes.

2. Oro\Bundle\NavigationBundle\MenuUpdate\Propagator\ToMenuItem\ExtrasPropagator: fills the menu item extras with fields that are not represented in the menu item explicitly.

Note

You can create your own menu-update-to-menu-item propagator by creating a class implementing Oro\Bundle\NavigationBundle\MenuUpdate\Propagator\ToMenuItem\MenuUpdateToMenuItemPropagatorInterface and registering it as a service with tag oro_navigation.menu_update.propagator.to_menu_item.

Menu Update Manager

Oro\Bundle\NavigationBundle\Manager\MenuUpdateManager is responsible for CRUD operations on MenuUpdate entities. The responsibility of creating a Menu Update is delegated to the factory Oro\Bundle\NavigationBundle\MenuUpdate\Factory\MenuUpdateFactory and propagator Oro\Bundle\NavigationBundle\MenuUpdate\Propagator\ToMenuUpdate\CompositePropagator.

There are additional managers responsible for other operations on MenuUpdate entities:

1. Oro\Bundle\NavigationBundle\Manager\MenuUpdateMoveManager is responsible for moving menu items.

2. Oro\Bundle\NavigationBundle\Manager\MenuUpdateDisplayManager is responsible for toggling the display state (shown/hidden).

Menu Item to Menu Update Propagator

The propagator is responsible for taking menu item data and copying it to the MenuUpdate entity. It is represented by a composite class Oro\Bundle\NavigationBundle\MenuUpdate\Propagator\ToMenuUpdate\CompositePropagator that calls inner propagators:

1. Oro\Bundle\NavigationBundle\MenuUpdate\Propagator\ToMenuUpdate\BasicPropagator: fills parentKey, display state (shown/hidden), URI.

2. Oro\Bundle\NavigationBundle\MenuUpdate\Propagator\ToMenuUpdate\TitlePropagator

3. Oro\Bundle\NavigationBundle\MenuUpdate\Propagator\ToMenuUpdate\DescriptionPropagator

4. Oro\Bundle\NavigationBundle\MenuUpdate\Propagator\ToMenuUpdate\ExtrasPropagator: fills Menu Update fields with data found in extras options of the menu item.

Note

You can create your own menu-item-to-menu-update propagator by creating a class implementing Oro\Bundle\NavigationBundle\MenuUpdate\Propagator\ToMenuUpdate\MenuItemToMenuUpdatePropagatorInterface and registering it as a service with tag oro_navigation.menu_update.propagator.to_menu_update.

In order not to store in the menu update the data not explicitly seen and approved by a user (by submitting the menu item form), menu-item-to-menu-update propagators are called according to the specified strategy:

1. Oro\Bundle\NavigationBundle\MenuUpdate\Propagator\ToMenuUpdate\MenuItemToMenuUpdatePropagatorInterface::STRATEGY_FULL: used for propagating the menu update to show in the form in the back-office menu management UI.

2. Oro\Bundle\NavigationBundle\MenuUpdate\Propagator\ToMenuUpdate\MenuItemToMenuUpdatePropagatorInterface::STRATEGY_BASIC: used for propagating the menu update when a menu item is moved or its display state is toggled in the back-office menu management UI.