Search Builder - Enhance UI with Select2 and EntityRef

[colemanw]

Overview

Improves the UI of Search Builder (the classic one in core, not the new Search Kit extension) by using Select2 dropdowns for selecting options & autocompleting contacts, events, etc instead of needing to enter numeric ids.

Before

After

Technical Details

The After screenshot includes PR #19463 to demonstrate that this fixes the issue caused in that other PR. Note that this PR does not require that one.

Comments

This change was motivated by #19463, in which removing Campaign pseudoconstants broke the Campagn select list in Search Builder.

[civibot]

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[demeritcowboy]

I think it's an improvement except that for Contact - ContactID it lets you enter an id same as before, but for example Case - CaseID or Participant - ContactID, it's now a dropdown list with names which doesn't seem right.

Also there's a pre-existing issue for contributions - will make a ticket.

[colemanw]

@demeritcowboy thanks for the review. I've updated the code to not render an entityRef for an entity's own ID field.

[demeritcowboy]

jenkins retest this please

[demeritcowboy]

Looks good.

[seamuslee001]

I'm going to merge this based on @demeritcowboy 's testing

[colemanw]

Thanks @demeritcowboy !