@directus/api/dist/utils/filter-items.js

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

import { generateJoi } from '@directus/utils';
/*
 Note: Filtering is normally done through SQL in run-ast. This function can be used in case an already
 existing array of items has to be filtered using the same filter syntax as used in the ast-to-sql flow
 */
export function filterItems(items, filter) {
    if (!filter)
        return items;
    return items.filter((item) => passesFilter(item, filter));
    function passesFilter(item, filter) {
        if (!filter || Object.keys(filter).length === 0)
            return true;
        if (Object.keys(filter)[0] === '_and') {
            const subfilter = Object.values(filter)[0];
            return subfilter.every((subFilter) => {
                return passesFilter(item, subFilter);
            });
        }
        else if (Object.keys(filter)[0] === '_or') {
            const subfilter = Object.values(filter)[0];
            return subfilter.some((subFilter) => {
                return passesFilter(item, subFilter);
            });
        }
        else {
            const schema = generateJoi(filter);
            const { error } = schema.validate(item);
            return error === undefined;
        }
    }
}