@absolute/change-tracker-node-sdk/src/models/Field.js

ChangeTracker SDK for Node.js

/**
 * Field - Change Tracker field model
 * @class
 * @public
 */
module.exports = class Field {
    /**
     * @constructor
     * @returns {Field}
     * @param {string} name - table name
     * @param {any} prevValue - previous field value
     * @param {any} nextValue - next field value
     **/
    constructor(name, prevValue, nextValue) {
        /**
         * @type {string}
         **/
        this.f = name;
        /**
         * @type {string}
         **/
        this.p = prevValue;
        /**
         * @type {string}
         **/
        this.n = nextValue;
    }

    set name(name) {
        this.f = name;
    }

    get name() {
        return this.f;
    }

    set prevValue(prevValue) {
        this.p = prevValue;
    }

    get prevValue() {
        return this.p;
    }

    set nextValue(nextValue) {
        this.n = nextValue;
    }

    get nextValue() {
        return this.n;
    }

    toString() {
        const name = this.f, prev = this.p, next = this.n;
        if ((prev + '').toLowerCase() === (next + '').toLowerCase())
            return name + '=(' + next + ')';

        // modified
        return name + '=(' + (typeof prev === undefined ? '' : prev) + ' => ' + (typeof prev === undefined ? '' : next) + ')';
    }
}