grapher/lib/namedQuery/namedQuery.server.js

import prepareForProcess from '../query/lib/prepareForProcess.js';
import Base from './namedQuery.base';
import deepClone from 'lodash.cloneDeep';

export default class extends Base {
    /**
     * Retrieves the data.
     * @returns {*}
     */
    fetch() {
        const query = this.collection.createQuery(
            deepClone(this.body),
            deepClone(this.params)
        );

        return query.fetch();
    }

    /**
     * @param args
     * @returns {*}
     */
    fetchOne(...args) {
        return _.first(this.fetch(...args));
    }

    /**
     * Gets the count of matching elements.
     *
     * @returns {any}
     */
    getCount() {
        return this.getCursorForCounting().count();
    }

    /**
     * Returns the cursor for counting
     * This is most likely used for counts cursor
     */
    getCursorForCounting() {
        let body = prepareForProcess(this.body, this.params);

        return this.collection.find(body.$filters || {}, {fields: {_id: 1}});
    }
}