![]() Magento was initially created by a team of experienced Java developers, and their legacy can certainly be seen throughout the codebase. In case you are not very confident about your OOP skills, it might be a good idea to review it before beginning your work with the platform. Magento’s architecture was designed with the intent of making the source code as modularized and extensible as possible. The end goal of that approach is to allow it to be easily adapted and customized according to each project’s needs.Ĭustomizing usually means changing the behavior of the platform’s code. In the majority of systems, this means changing the “core” code. In Magento, if you are following best practices, this is something you can avoid most of the time, making it possible for a store to keep up to date with the latest security patches and feature releases in a reliable fashion. Magento 2 is a Model View ViewModel (MVVM) system. Below is an explanation of each of the layers of a MVVM system: While being closely related to its sibling Model View Controller (MVC), an MVVM architecture provides a more robust separation between the Model and the View layers.The Model holds the business logic of the application, and depends on an associated class-the ResourceModel-for database access. ![]() Models rely on service contracts to expose their functionality to the other layers of the application.The View is the structure and layout of what a user sees on a screen - the actual HTML.This is achieved in the PHTML files distributed with modules. PHTML files are associated to each ViewModel in the Layout XML files, which would be referred to as binders in the MVVM dialect. The ViewModel interacts with the Model layer, exposing only the necessary information to the View layer.The layout files might also assign JavaScript files to be used in the final page. In Magento 2, this is handled by the module’s Block classes. phtml template, see the JavaScript initialization topic.Note that this was usually part of the Controller role of an MVC system. Using individual jQuery UI components instead of the monolithic jQuery UI library improves storefront performance.įor information about initializing your custom widget in a. They can be used in JS widgets by jquery-ui-modules path mapping like jquery-ui-modules/widget and jquery-ui-modules/slider. Additional dependencies demand more web requests, which can slow rendering.Īll jQuery UI components for frontend and base areas are located in lib/web/jquery/ui-modules dir. When using custom JS, try to keep dependencies to a minimum. the name of the Magento widget that you extend. According to the jQuery widgets naming convention, this value must contain a namespace and name. ![]() Your module view JS files: /view/frontend/web/jsĬreate a RequireJS configuration file requirejs-config.js, having specified the following:ĭefine (, function ( $ )).Place the custom component source file in one of the following locations: To use a custom implementation of an existing Magento JS component: Your module (depending on the needed area - base, frontend, adminhtml): /view/.The RequireJS configuration file can be placed in one of the following locations: Optionally, in the corresponding module or theme, create a requirejs-config.js configuration file, if it does not yet exist there and set path for your resource. In this case, the component is available in all modules and themes (if your module is enabled). Your module view JS files: /view/frontend/web/js.In this case the component is available in your theme and its child themes. Your theme JS files: /web/js or /_/web/js.Place the custom component source file in one of the following locations:. ![]() To add a custom JS component (module), take the following steps: All customizations must be implemented in custom modules or themes. We strongly recommend that you do not change the source code of default Magento components and widgets. This topic discusses how to use custom JavaScript components with the components provided by Magento or custom replacement implementations.
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