Display Custom Fields on ContributionPage settings

[aydun]

Overview

This adds the display of Custom Fields on ContributionPages.

Before

Custom Fields on ContributionPages can be configured by API but not displayed.

After

Custom Fields on ContributionPages are displayed at the bottom of the Settings tab.

Technical Details

Comments

The customDataBlock.tpl that pulls in custom fields only loads groups with style of 'Inline'.

The GDPR extension creates custom fields on ContributionPages with Inline style but has its own code to display these as a tab. This PR causes those fields to also be shown on the Settings tab. This can be avoided by changing the style to Tab - I will create a PR for GDPR.

[civibot]

🤖 Thank you for contributing to CiviCRM! ❤️ We will need to test and review this PR. 👷

Introduction for new contributors...

• If this is your first PR, an admin will greenlight automated testing with the command ok to test or add to whitelist.
• A series of tests will automatically run. You can see the results at the bottom of this page (if there are any problems, it will include a link to see what went wrong).
• A demo site will be built where anyone can try out a version of CiviCRM that includes your changes.
• If this process needs to be repeated, an admin will issue the command test this please to rerun tests and build a new demo site.
• Before this PR can be merged, it needs to be reviewed. Please keep in mind that reviewers are volunteers, and their response time can vary from a few hours to a few weeks depending on their availability and their knowledge of this particular part of CiviCRM.
• A great way to speed up this process is to "trade reviews" with someone - find an open PR that you feel able to review, and leave a comment like "I'm reviewing this now, could you please review mine?" (include a link to yours). You don't have to wait for a response to get started (and you don't have to stop at one!) the more you review, the faster this process goes for everyone 😄
• To ensure that you are credited properly in the final release notes, please add yourself to contributor-key.yml
• For more information about contributing, see CONTRIBUTING.md.

Quick links for reviewers...

• ➡️ PR Demo site (can be rebuilt with the command test this please).
• 📖 Review standards
• 🗒️ Review template (brief or verbose)

➡️ Online demo of this PR 🔗

[demeritcowboy]

Looks good. Putting merge-ready just because it's not clear if it's intentional/out-of-scope that it doesn't work with subtypes, e.g. a custom group that is only for ContributionPages with financial type Donation. You can define such a custom group, but then it doesn't display here. I think it's ok for this if it's out-of-scope.

Test fails are also happening elsewhere.

[seamuslee001]

Whilst I agree with this work, I think that we may want to think about some kind of upgrade step for people with this extension https://lab.civicrm.org/extensions/contributionpagecustomfield

[seamuslee001]

Just to clarify the extension I was referring to above currently handles the ability to have custom fields on contribution pages and also displays them. So if we merge this then people upgrading would probably end up possibly with the custom data displaying twice right? So I was thinking we could essentially pull this option value into core https://lab.civicrm.org/extensions/contributionpagecustomfield/-/blob/master/contributionpagecustomfield.php?ref_type=heads#L42 and then effectively deprecate that whole extension at that point and have an upgrade message of like "We see that you had the Contribution Page Custom Field extension enabled, this has now been disabled as it is now incorporated in core or similar"

[colemanw]

@seamuslee001 actually that wheel has already been invented :)
Just push an entry into this file (could do it as part of this PR for completeness): https://github.com/civicrm/civicrm-core/blob/master/extension-compatibility.json