@jokio/datastore/dist/db-transaction.js

Helper library for Google Cloud Datastore

"use strict";
var __extends = (this && this.__extends) || (function () {
    var extendStatics = Object.setPrototypeOf ||
        ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
        function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
    return function (d, b) {
        extendStatics(d, b);
        function __() { this.constructor = d; }
        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
    };
})();
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
var __generator = (this && this.__generator) || function (thisArg, body) {
    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
    return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
    function verb(n) { return function (v) { return step([n, v]); }; }
    function step(op) {
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        while (_) try {
            if (f = 1, y && (t = y[op[0] & 2 ? "return" : op[0] ? "throw" : "next"]) && !(t = t.call(y, op[1])).done) return t;
            if (y = 0, t) op = [0, t.value];
            switch (op[0]) {
                case 0: case 1: t = op; break;
                case 4: _.label++; return { value: op[1], done: false };
                case 5: _.label++; y = op[1]; op = [0]; continue;
                case 7: op = _.ops.pop(); _.trys.pop(); continue;
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                    if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
                    if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
                    if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
                    if (t[2]) _.ops.pop();
                    _.trys.pop(); continue;
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            op = body.call(thisArg, _);
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        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
    }
};
var _this = this;
Object.defineProperty(exports, "__esModule", { value: true });
var db_set_base_1 = require("./db-set-base");
var DbTransaction = /** @class */ (function (_super) {
    __extends(DbTransaction, _super);
    function DbTransaction(kind, datastore, transaction) {
        var _this = _super.call(this, kind, datastore) || this;
        _this.transaction = transaction;
        return _this;
    }
    DbTransaction.prototype.onSave = function (entities) {
        this.transaction.save(entities);
        return new Promise(function (resolve) { return resolve(undefined); });
    };
    DbTransaction.prototype.onGet = function (key, options) {
        return __awaiter(this, void 0, void 0, function () {
            var result;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0: return [4 /*yield*/, this.transaction.get(key, options)];
                    case 1:
                        result = (_a.sent())[0];
                        return [2 /*return*/, result];
                }
            });
        });
    };
    DbTransaction.prototype.onCreateQuery = function (kind) {
        return this.transaction.createQuery(this.kind);
    };
    DbTransaction.prototype.onRunQuery = function (query, options) {
        return __awaiter(this, void 0, void 0, function () {
            var results;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0: return [4 /*yield*/, this.transaction.runQuery(query, options)];
                    case 1:
                        results = _a.sent();
                        return [2 /*return*/, results];
                }
            });
        });
    };
    return DbTransaction;
}(db_set_base_1.DbSetBase));
exports.DbTransaction = DbTransaction;
exports.configureTransaction = function (datastore) {
    return function (process) { return __awaiter(_this, void 0, void 0, function () {
        var tran, err_1;
        return __generator(this, function (_a) {
            switch (_a.label) {
                case 0:
                    tran = datastore.transaction();
                    _a.label = 1;
                case 1:
                    _a.trys.push([1, 5, , 6]);
                    return [4 /*yield*/, tran.run()];
                case 2:
                    _a.sent();
                    return [4 /*yield*/, process(tran, datastore)];
                case 3:
                    _a.sent();
                    return [4 /*yield*/, tran.commit()];
                case 4:
                    _a.sent();
                    return [2 /*return*/, true];
                case 5:
                    err_1 = _a.sent();
                    tran.rollback(err_1);
                    return [2 /*return*/, false];
                case 6: return [2 /*return*/];
            }
        });
    }); };
};
exports.configureDbTransaction = function (kind, datastore) {
    return function (process) { return __awaiter(_this, void 0, void 0, function () {
        var tran, dbTransaction, err_2;
        return __generator(this, function (_a) {
            switch (_a.label) {
                case 0:
                    tran = datastore.transaction();
                    _a.label = 1;
                case 1:
                    _a.trys.push([1, 5, , 6]);
                    dbTransaction = new DbTransaction(kind, datastore, tran);
                    return [4 /*yield*/, tran.run()];
                case 2:
                    _a.sent();
                    return [4 /*yield*/, process(dbTransaction, tran)];
                case 3:
                    _a.sent();
                    return [4 /*yield*/, tran.commit()];
                case 4:
                    _a.sent();
                    return [3 /*break*/, 6];
                case 5:
                    err_2 = _a.sent();
                    tran.rollback(err_2);
                    throw err_2;
                case 6: return [2 /*return*/];
            }
        });
    }); };
};