"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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var tslib_1 = require("tslib");
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var QueryRunnerAlreadyReleasedError_1 = require("../../error/QueryRunnerAlreadyReleasedError");
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var QueryFailedError_1 = require("../../error/QueryFailedError");
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var AbstractSqliteQueryRunner_1 = require("../sqlite-abstract/AbstractSqliteQueryRunner");
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var TransactionAlreadyStartedError_1 = require("../../error/TransactionAlreadyStartedError");
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var TransactionNotStartedError_1 = require("../../error/TransactionNotStartedError");
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var Broadcaster_1 = require("../../subscriber/Broadcaster");
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/**
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* Runs queries on a single sqlite database connection.
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*/
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var ExpoQueryRunner = /** @class */ (function (_super) {
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tslib_1.__extends(ExpoQueryRunner, _super);
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// -------------------------------------------------------------------------
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// Constructor
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// -------------------------------------------------------------------------
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function ExpoQueryRunner(driver) {
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var _this = _super.call(this) || this;
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_this.driver = driver;
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_this.connection = driver.connection;
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_this.broadcaster = new Broadcaster_1.Broadcaster(_this);
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return _this;
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}
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/**
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* Starts transaction. Within Expo, all database operations happen in a
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* transaction context, so issuing a `BEGIN TRANSACTION` command is
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* redundant and will result in the following error:
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*
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* `Error: Error code 1: cannot start a transaction within a transaction`
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*
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* Instead, we keep track of a `Transaction` object in `this.transaction`
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* and continue using the same object until we wish to commit the
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* transaction.
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*/
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ExpoQueryRunner.prototype.startTransaction = function () {
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return tslib_1.__awaiter(this, void 0, void 0, function () {
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return tslib_1.__generator(this, function (_a) {
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if (this.isTransactionActive && typeof this.transaction !== "undefined")
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throw new TransactionAlreadyStartedError_1.TransactionAlreadyStartedError();
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this.isTransactionActive = true;
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return [2 /*return*/];
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});
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});
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};
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/**
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* Commits transaction.
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* Error will be thrown if transaction was not started.
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* Since Expo will automatically commit the transaction once all the
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* callbacks of the transaction object have been completed, "committing" a
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* transaction in this driver's context means that we delete the transaction
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* object and set the stage for the next transaction.
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*/
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ExpoQueryRunner.prototype.commitTransaction = function () {
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return tslib_1.__awaiter(this, void 0, void 0, function () {
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return tslib_1.__generator(this, function (_a) {
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if (!this.isTransactionActive && typeof this.transaction === "undefined")
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throw new TransactionNotStartedError_1.TransactionNotStartedError();
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this.isTransactionActive = false;
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this.transaction = undefined;
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return [2 /*return*/];
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});
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});
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};
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/**
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* Rollbacks transaction.
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* Error will be thrown if transaction was not started.
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* This method's functionality is identical to `commitTransaction()` because
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* the transaction lifecycle is handled within the Expo transaction object.
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* Issuing separate statements for `COMMIT` or `ROLLBACK` aren't necessary.
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*/
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ExpoQueryRunner.prototype.rollbackTransaction = function () {
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return tslib_1.__awaiter(this, void 0, void 0, function () {
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return tslib_1.__generator(this, function (_a) {
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if (!this.isTransactionActive && typeof this.transaction === "undefined")
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throw new TransactionNotStartedError_1.TransactionNotStartedError();
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this.isTransactionActive = false;
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this.transaction = undefined;
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return [2 /*return*/];
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});
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});
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};
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/**
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* Executes a given SQL query.
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*/
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ExpoQueryRunner.prototype.query = function (query, parameters) {
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var _this = this;
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if (this.isReleased)
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throw new QueryRunnerAlreadyReleasedError_1.QueryRunnerAlreadyReleasedError();
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return new Promise(function (ok, fail) { return tslib_1.__awaiter(_this, void 0, void 0, function () {
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var databaseConnection, queryStartTime;
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var _this = this;
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return tslib_1.__generator(this, function (_a) {
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switch (_a.label) {
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case 0: return [4 /*yield*/, this.connect()];
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case 1:
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databaseConnection = _a.sent();
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this.driver.connection.logger.logQuery(query, parameters, this);
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queryStartTime = +new Date();
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// All Expo SQL queries are executed in a transaction context
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databaseConnection.transaction(function (transaction) {
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if (typeof _this.transaction === "undefined") {
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_this.startTransaction();
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_this.transaction = transaction;
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}
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_this.transaction.executeSql(query, parameters, function (t, result) {
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// log slow queries if maxQueryExecution time is set
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var maxQueryExecutionTime = _this.driver.connection.options.maxQueryExecutionTime;
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var queryEndTime = +new Date();
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var queryExecutionTime = queryEndTime - queryStartTime;
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if (maxQueryExecutionTime && queryExecutionTime > maxQueryExecutionTime) {
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_this.driver.connection.logger.logQuerySlow(queryExecutionTime, query, parameters, _this);
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}
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// return id of inserted row, if query was insert statement.
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if (query.substr(0, 11) === "INSERT INTO") {
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ok(result.insertId);
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}
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else {
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var resultSet = [];
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for (var i = 0; i < result.rows.length; i++) {
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resultSet.push(result.rows.item(i));
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}
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ok(resultSet);
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}
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}, function (t, err) {
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_this.driver.connection.logger.logQueryError(err, query, parameters, _this);
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fail(new QueryFailedError_1.QueryFailedError(query, parameters, err));
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});
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}, function (err) {
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_this.rollbackTransaction();
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}, function () {
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_this.isTransactionActive = false;
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_this.transaction = undefined;
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});
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return [2 /*return*/];
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}
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});
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}); });
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};
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return ExpoQueryRunner;
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}(AbstractSqliteQueryRunner_1.AbstractSqliteQueryRunner));
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exports.ExpoQueryRunner = ExpoQueryRunner;
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//# sourceMappingURL=ExpoQueryRunner.js.map
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