This is a custom plugin

• Basic template
• 4 Sub menu pages
• Settings API
• CPT
• Custom Taxo
• Two Metabox
• Shortcode
• Plugin frontend template

Workflow

• Create folder structure

  • index.php
  • uninstall.php
  • custom-plugin.php
  • phpunit.xml
  • /inc
    • /Base
      • Activate.php - flush_rewrite_rules
      • Deactivate.php - flush_rewrite_rules
      • SettingsLink.php - Adds a settings link to the plugin
      • Enqueue.php - Enqueues all scripts and stylesheets
      • BaseController.php - provides common path and url attributes.
    • /Pages
      • Admin.php - Handles Admin pages
        • register()
          • initiates SettingsApi and AdminCallbacks classes
          • calls setPages method that sets $this->pages
          • calls setSubPages that sets $this->subpages
          • calls settingsApi object and envokes its addPages(this->pages)->withSubPage('Dashboard')->addSubPages(this->subpages)->register()
        • setPage() sets this->pages array attribute
        • SetSubPages() sets this->subpages array attribute
    • /Api
      • /Callbacks
        • AdminCallbacks.php - loads all admin related callbacks for example loading html
      • SettingsApi.php - Provides an API for accessing wordpress settings API
        • register()
          • if admin_pages variable is not empty then add pages to menu using admin_menu hook - addAdminMenu is the callback
        • addPages(array $pages) sets $this->admin_pages and return object;
        • withSubpage(string $title = null) if $this->admin_pages is empty return object if it has pages then attach the first sub page to whatever is found on the admin page. So it produces a default page with same link. return object
        • addSubPage(array $pages) array_merge and combile existing admin_subpage with default page with rest of the pages.
        • addAdminMenu use two foreach loops to add_menu_page and add_submenu_page
  • /templates
    • /fronend - Custom template to be included for frontend
    • /backend - Admin side templates
  • /assets
    • /css
    • /js
  • /tests
    • /unit

• Create php unit test environment

• write tests

• setup composer autoload

• custom-plugin.php

  • write header
  • sercurity measure
  • require composer autoload
  • procedurally add activation and deactivation hook
  • Call register_service static method from Init class

• Init.php

  • getServices() - returns an array with services
  • instantiate($class) - takes class as parameter and instantiate that class and returns it.
  • register_services()
  • interates through getServices() arrays and instantiate each of them and checks if register method is present. if yes then calls it.