Add the possibility to duplicate pages

[giuscris]

This pull request adds a "Duplicate Page" feature to the CMS, allowing users to create a copy of an existing page through the panel UI. The implementation includes backend logic for duplicating a page, frontend modal integration, new route and permissions checks, and UI updates to expose the feature in both the page editor and the page tree.

The most important changes are:

Backend functionality:

• Added isDuplicable() and duplicate() methods to the Page class, enabling logic to check if a page can be duplicated and to perform the duplication, including copying content and updating fields like slug and title. [1] [2] [3]
• Added a new controller action duplicate in PagesController to handle the duplication request, validate input, and redirect the user to the new page's editor. Also added a helper method duplicatePage for the duplication process and content history update. [1] [2]
• Registered a new POST route panel.pages.duplicate for the duplication endpoint.

Frontend and UI integration:

• Added a new modal definition duplicatePage.yaml for collecting title and slug when duplicating a page.
• Updated the page editor and page tree views to include a "Duplicate Page" option in the actions dropdown, with permission checks and disabled state if the page is not duplicable. [1] [2]
• Registered the duplicate page modal in relevant views. [1] [2]

Frontend logic:

• Updated the TypeScript pages.ts component to handle opening the duplicate modal, pre-filling the title and slug fields using the original page title, and generating a slug automatically. [1] [2] [3]

Localization:

• Added new translation strings for the duplicate page feature.

[Copilot]

Pull Request Overview

This PR adds functionality to duplicate pages in the panel. Users can now duplicate pages through a new modal dialog, which copies the page content and allows setting a new title and slug for the duplicate.

Key changes:

• Added a duplicate page modal with title and slug fields
• Added duplicate buttons to the page tree view and editor view with permission checks
• Implemented backend duplication logic that copies page content and handles file operations

Reviewed Changes

Copilot reviewed 8 out of 9 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
panel/views/pages/tree.php	Adds duplicate modal registration and duplicate button in dropdown menu
panel/views/pages/editor.php	Adds duplicate modal registration and restructures page actions into a dropdown menu containing duplicate and delete options
panel/translations/en.yaml	Adds translation keys for duplicate page action and default title format
panel/src/ts/components/views/pages.ts	Imports makeSlug utility and adds modal handler to pre-fill duplicate title/slug fields
panel/modals/duplicatePage.yaml	Defines modal configuration with title and slug fields
panel/config/routes/routes.php	Registers new route for duplicate action
panel/assets/icons/svg/duplicate.svg	Adds duplicate icon SVG
formwork/src/Panel/Controllers/PagesController.php	Implements duplicate controller action with validation and error handling
formwork/src/Pages/Page.php	Adds isDuplicable() method, duplicate() method, and refactors save() to use new write() method

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[sgirard84]

You are on a roll with all these PR recently :) And I see you started some work with plugins too.. That's really exciting! Thank for this great CMS

[Copilot]

Pull Request Overview

Copilot reviewed 18 out of 19 changed files in this pull request and generated 4 comments.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.