gun-flint/dist/Adapter/key-val-adapter.js

Micro-framework for building Gun adapters

'use strict';

Object.defineProperty(exports, "__esModule", {
    value: true
});

var _keys = require('babel-runtime/core-js/object/keys');

var _keys2 = _interopRequireDefault(_keys);

var _getPrototypeOf = require('babel-runtime/core-js/object/get-prototype-of');

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = require('babel-runtime/helpers/possibleConstructorReturn');

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = require('babel-runtime/helpers/inherits');

var _inherits3 = _interopRequireDefault(_inherits2);

var _baseAdapter = require('./base-adapter');

var _baseAdapter2 = _interopRequireDefault(_baseAdapter);

var _util = require('./../util');

var _util2 = _interopRequireDefault(_util);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var KeyValAdapter = function (_BaseAdapter) {
    (0, _inherits3.default)(KeyValAdapter, _BaseAdapter);

    function KeyValAdapter() {
        (0, _classCallCheck3.default)(this, KeyValAdapter);
        return (0, _possibleConstructorReturn3.default)(this, (KeyValAdapter.__proto__ || (0, _getPrototypeOf2.default)(KeyValAdapter)).apply(this, arguments));
    }

    (0, _createClass3.default)(KeyValAdapter, [{
        key: 'read',


        /**
         *  @param {Array|Object}    result    - An array of objects (= records) like so
         *                               {
         *                                  key: 'uuid for the node'
         *                                  nodeKey: 'node value's name'
         *                                  val:     'Value'
         *                                  rel:     'Relationship (if referring to another node)
         *                                  state:   'conflict resolution value'
         *                               }
         *  @param {Function} callback - Call once read finished
         *  @return {void}
         */
        value: function read(result, done) {
            if (result) {
                var key = result instanceof Array && result.length ? result[0].key : result.key;
                result = _util2.default.gunify(key, result);
            }
            done(null, result);
        }

        /**
         *  @param {Object}   delta    - A delta for the current node
         *  @param {Function} callback - Called once write finished
         *  @return {void}
         */

    }, {
        key: 'write',
        value: function write(delta, done) {
            var _this2 = this;

            var keys = (0, _keys2.default)(delta);

            // Batch together key:val writes
            var batch = [];

            // Iterate through each node in the delta
            keys.forEach(function (key) {
                var nodeDelta = delta[key];
                var conflictState = nodeDelta._['>'];

                // Iterate through each field in the node delta
                (0, _keys2.default)(nodeDelta).map(function (field) {

                    // Ignore meta info
                    if (field !== '_') {
                        var state = conflictState[field];

                        // base node
                        var node = { state: state, field: field, key: key };

                        // Add rel or val
                        if (_this2.Gun.obj.is(nodeDelta[field])) {
                            node.rel = nodeDelta[field]['#'];
                        } else {
                            node.val = nodeDelta[field];
                        }
                        batch.push(node);
                    }
                });
            }, this);

            // Write batch
            if (batch.length) {
                this._put(batch, done);
            }
        }
    }]);
    return KeyValAdapter;
}(_baseAdapter2.default);

exports.default = KeyValAdapter;