@directus/api/dist/permissions/utils/merge-fields.js

Directus is a real-time API and App dashboard for managing SQL database content

import { intersection, union } from "lodash-es";

//#region src/permissions/utils/merge-fields.ts
function mergeFields(fieldsA, fieldsB, strategy) {
	if (fieldsA === null) fieldsA = [];
	if (fieldsB === null) fieldsB = [];
	let fields = [];
	if (strategy === "and") {
		if (fieldsA.length === 0 || fieldsB.length === 0) return [];
		if (fieldsA.includes("*")) return fieldsB;
		if (fieldsB.includes("*")) return fieldsA;
		fields = intersection(fieldsA, fieldsB);
	} else {
		if (fieldsA.length === 0) return fieldsB;
		if (fieldsB.length === 0) return fieldsA;
		if (fieldsA.includes("*") || fieldsB.includes("*")) return ["*"];
		fields = union(fieldsA, fieldsB);
	}
	if (fields.includes("*")) return ["*"];
	return fields;
}

//#endregion
export { mergeFields };