Add function filterLinks to return an array of links for an entity that can be used by the API / form layer to generate a link

[mattwire]

Overview

Add function filterLinks to return an array of links for an entity that can be used by the API / form layer to generate a link

Before

Link html is generated server-side using CRM_Core_Action::formLink()

After

Link html can be generated client-side using CRM_Core_Action::filterLinks()

Technical Details

A new function that parses the same data structures as CRM_Core_Action::formLink()

Comments

This is currently unused but I want to use it for the case activity links refactor and it could be used in various other places too. https://github.com/mattwire/civicrm-core/tree/case_links_refactor_part2

It will also help with replacing the current form layer as we are not relying on server-side hardcoded html and can instead choose how to present the links (eg. via API or client-side).

[civibot]

(Standard links)

• If this is your first pull-request for CiviCRM, please browse CONTRIBUTING.md for information about the development and testing processes.
• If you are reviewing this pull-request, you may wish to consult the test sites and the Review Standards (long template, short template).

[eileenmcnaughton]

I'm not a fan of adding a function without setting at least one place in the code to use it at the same time. However, I realise this is something you've already thought through & broken out into a PR for simplification so I'm going to proceed to merge this one

[eileenmcnaughton]

I'm not a fan of adding a function without setting at least one place in the code to use it at the same time. However, I realise this is something you've already thought through & broken out into a PR for simplification so I'm going to proceed to merge this one