@ossareh/typeorm
Version:
Data-Mapper ORM for TypeScript, ES7, ES6, ES5. Supports MySQL, PostgreSQL, MariaDB, SQLite, MS SQL Server, Oracle, MongoDB databases.
189 lines (187 loc) • 10.3 kB
JavaScript
;
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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());
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Object.defineProperty(exports, "__esModule", { value: true });
var QueryRunnerAlreadyReleasedError_1 = require("../../error/QueryRunnerAlreadyReleasedError");
var QueryFailedError_1 = require("../../error/QueryFailedError");
var AbstractSqliteQueryRunner_1 = require("../sqlite-abstract/AbstractSqliteQueryRunner");
var TransactionAlreadyStartedError_1 = require("../../error/TransactionAlreadyStartedError");
var TransactionNotStartedError_1 = require("../../error/TransactionNotStartedError");
var Broadcaster_1 = require("../../subscriber/Broadcaster");
/**
* Runs queries on a single sqlite database connection.
*/
var ExpoQueryRunner = /** @class */ (function (_super) {
__extends(ExpoQueryRunner, _super);
// -------------------------------------------------------------------------
// Constructor
// -------------------------------------------------------------------------
function ExpoQueryRunner(driver) {
var _this = _super.call(this) || this;
_this.driver = driver;
_this.connection = driver.connection;
_this.broadcaster = new Broadcaster_1.Broadcaster(_this);
return _this;
}
/**
* Starts transaction. Within Expo, all database operations happen in a
* transaction context, so issuing a `BEGIN TRANSACTION` command is
* redundant and will result in the following error:
*
* `Error: Error code 1: cannot start a transaction within a transaction`
*
* Instead, we keep track of a `Transaction` object in `this.transaction`
* and continue using the same object until we wish to commit the
* transaction.
*/
ExpoQueryRunner.prototype.startTransaction = function () {
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
if (this.isTransactionActive && typeof this.transaction !== "undefined")
throw new TransactionAlreadyStartedError_1.TransactionAlreadyStartedError();
this.isTransactionActive = true;
return [2 /*return*/];
});
});
};
/**
* Commits transaction.
* Error will be thrown if transaction was not started.
* Since Expo will automatically commit the transaction once all the
* callbacks of the transaction object have been completed, "committing" a
* transaction in this driver's context means that we delete the transaction
* object and set the stage for the next transaction.
*/
ExpoQueryRunner.prototype.commitTransaction = function () {
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
if (!this.isTransactionActive && typeof this.transaction === "undefined")
throw new TransactionNotStartedError_1.TransactionNotStartedError();
this.isTransactionActive = false;
this.transaction = undefined;
return [2 /*return*/];
});
});
};
/**
* Rollbacks transaction.
* Error will be thrown if transaction was not started.
* This method's functionality is identical to `commitTransaction()` because
* the transaction lifecycle is handled within the Expo transaction object.
* Issuing separate statements for `COMMIT` or `ROLLBACK` aren't necessary.
*/
ExpoQueryRunner.prototype.rollbackTransaction = function () {
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
if (!this.isTransactionActive && typeof this.transaction === "undefined")
throw new TransactionNotStartedError_1.TransactionNotStartedError();
this.isTransactionActive = false;
this.transaction = undefined;
return [2 /*return*/];
});
});
};
/**
* Executes a given SQL query.
*/
ExpoQueryRunner.prototype.query = function (query, parameters) {
var _this = this;
if (this.isReleased)
throw new QueryRunnerAlreadyReleasedError_1.QueryRunnerAlreadyReleasedError();
return new Promise(function (ok, fail) { return __awaiter(_this, void 0, void 0, function () {
var databaseConnection, queryStartTime;
var _this = this;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, this.connect()];
case 1:
databaseConnection = _a.sent();
this.driver.connection.logger.logQuery(query, parameters, this);
queryStartTime = +new Date();
// All Expo SQL queries are executed in a transaction context
databaseConnection.transaction(function (transaction) {
if (typeof _this.transaction === "undefined") {
_this.startTransaction();
_this.transaction = transaction;
}
_this.transaction.executeSql(query, parameters, function (t, result) {
// log slow queries if maxQueryExecution time is set
var maxQueryExecutionTime = _this.driver.connection.options.maxQueryExecutionTime;
var queryEndTime = +new Date();
var queryExecutionTime = queryEndTime - queryStartTime;
if (maxQueryExecutionTime && queryExecutionTime > maxQueryExecutionTime) {
_this.driver.connection.logger.logQuerySlow(queryExecutionTime, query, parameters, _this);
}
// return id of inserted row, if query was insert statement.
if (query.substr(0, 11) === "INSERT INTO") {
ok(result.insertId);
}
else {
var resultSet = [];
for (var i = 0; i < result.rows.length; i++) {
resultSet.push(result.rows.item(i));
}
ok(resultSet);
}
}, function (t, err) {
_this.driver.connection.logger.logQueryError(err, query, parameters, _this);
fail(new QueryFailedError_1.QueryFailedError(query, parameters, err));
});
}, function (err) {
_this.rollbackTransaction();
}, function () {
_this.isTransactionActive = false;
_this.transaction = undefined;
});
return [2 /*return*/];
}
});
}); });
};
return ExpoQueryRunner;
}(AbstractSqliteQueryRunner_1.AbstractSqliteQueryRunner));
exports.ExpoQueryRunner = ExpoQueryRunner;
//# sourceMappingURL=ExpoQueryRunner.js.map