[charcoal/admin] Add support for searching multiple fields to Selectize controller

[mcaskill]

Currently limited to a single field which limits what can be searched.

charcoal/packages/admin/src/Charcoal/Admin/Action/Selectize/LoadAction.php

Lines 74 to 78 in c72eca8

	$query = [
	'property' => $searchField,
	'operator' => 'LIKE',
	'value' => '%' . $this->query() . '%',
	];

Selectize's searchField setting is used to:

An array of property names to analyze when filtering options.

For example:

$("select").selectize({
	valueField: "email",
	labelField: "name",
	searchField: ["name", "email"],
	options: [
		{ email: "selectize@risadams.com", name: "Ris Adams" },
		{ email: "someone@gmail.com", name: "Someone" },
		{ email: "someone-else@yahoo.com", name: "Someone Else" },
	],
});

Since Charcoal's Selectize Input Property extends Object Property, the options are already formatted as { value: number|string, label: string }, Selectize's searchField can only ever be at best [ 'value', 'label' ] which makes it incompatible with Charcoal's Selectize Load controller's collection filters which expect a model property name.

One solution is to add a separate input option, for example, searchProperties which would be used by the Selectize Load controller to filter the collection.

Alternatively, have Selectize Input Property and Load controller not be constrained to Object Property's value/label pair.

[charcoal-butler]

🎉 This issue has been resolved in version 5.0.0 🎉

The release is available on GitHub release

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