database-builder
Version:
Library to assist in creating and maintaining SQL commands.
335 lines (334 loc) • 15.3 kB
JavaScript
"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
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) : adopt(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) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, 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;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
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;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
var __spreadArray = (this && this.__spreadArray) || function (to, from, pack) {
if (pack || arguments.length === 2) for (var i = 0, l = from.length, ar; i < l; i++) {
if (ar || !(i in from)) {
if (!ar) ar = Array.prototype.slice.call(from, 0, i);
ar[i] = from[i];
}
}
return to.concat(ar || Array.prototype.slice.call(from));
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.ManagedTransaction = void 0;
var utils_1 = require("../core/utils");
var transaction_status_1 = require("./transaction-status");
var core_1 = require("../core");
var rxjs_1 = require("rxjs");
var replacement_param_1 = require("../core/replacement-param");
/**
* Manages better and homogeneous transaction between providers
*/
var ManagedTransaction = /** @class */ (function () {
function ManagedTransaction(_database, _singleTransactionManager) {
this._database = _database;
this._singleTransactionManager = _singleTransactionManager;
this._status = transaction_status_1.TransactionStatus.OPEN;
this._stack = [];
this._idTransaction = "transaction_".concat(utils_1.Utils.GUID().replace(/-/g, "_"));
}
Object.defineProperty(ManagedTransaction.prototype, "id", {
/**
* return transaction id
*/
get: function () {
return this._idTransaction;
},
enumerable: false,
configurable: true
});
Object.defineProperty(ManagedTransaction.prototype, "status", {
/**
* Set transaction status
*/
set: function (value) {
this._status = value;
},
enumerable: false,
configurable: true
});
/**
* Add command statement in transaction
* @param statement command to apply
* @param params command params
*/
ManagedTransaction.prototype.addStatement = function (statement, params) {
this.checkTransactionActive();
this._stack.push({ statement: statement, params: params });
};
/**
* Add command compilable in transaction
* @param compilable command compilable for add in transaction
*/
ManagedTransaction.prototype.add = function (compilable) {
var _this = this;
var compiled = compilable.compile();
compiled.forEach(function (c) { return _this.addStatement(c.query, c.params); });
};
/**
* @deprecated Será removido, pois não tem utilidade real e não funciona de forma homegenea entre providers
* @param executable
*/
ManagedTransaction.prototype.executeImmediate = function (executable) {
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
this.checkTransactionActive();
return [4 /*yield*/, this.beginTransaction()];
case 1:
_a.sent();
return [4 /*yield*/, this.executeStack()];
case 2:
_a.sent();
return [2 /*return*/, executable.execute().toPromise()];
}
});
});
};
/**
* Commit a transaction
*/
ManagedTransaction.prototype.commit = function () {
if (this._singleTransactionManager) {
return this._singleTransactionManager.commitOnStack(this.commitExecuteObservable());
}
return this.commitExecuteObservable();
};
/**
* Rollback in current transaction
*/
ManagedTransaction.prototype.rollback = function () {
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (this._status === transaction_status_1.TransactionStatus.ROLLBACKED) {
console.warn("Transaction (id: ".concat(this._idTransaction, ") already rollbacked"));
return [2 /*return*/, true];
}
this.checkTransactionActive();
this.clearStackTransaction();
if (!(this._status === transaction_status_1.TransactionStatus.STARTED
|| this._status === transaction_status_1.TransactionStatus.RELEASED)) return [3 /*break*/, 2];
this.addStatement(this.commandRollbackTransaction(), []);
return [4 /*yield*/, this.executeStack()];
case 1:
_a.sent();
_a.label = 2;
case 2: return [2 /*return*/, this.finishTransaction(transaction_status_1.TransactionStatus.ROLLBACKED)];
}
});
});
};
ManagedTransaction.prototype.sqlBatch = function (sqlStatements) {
return this._database.sqlBatch(sqlStatements);
};
ManagedTransaction.prototype.executeSql = function (statement, params) {
return this._database.executeSql(statement, params);
};
/**
* Commit a transaction
*/
ManagedTransaction.prototype.commitExecuteObservable = function () {
var _this = this;
return new rxjs_1.Observable(function (observer) {
_this.commitExecute()
.then(function (result) {
observer.next(result);
observer.complete();
}).catch(function (error) {
observer.error(error);
});
});
};
/**
* Commit a transaction
*/
ManagedTransaction.prototype.commitExecute = function () {
return __awaiter(this, void 0, void 0, function () {
var batch;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (this._status === transaction_status_1.TransactionStatus.COMMITTED) {
console.warn("Transaction (id: ".concat(this._idTransaction, ") already committed"));
return [2 /*return*/, true];
}
this.checkParametersAllowedInTransaction();
this.checkTransactionActive();
if (!(this._status === transaction_status_1.TransactionStatus.STARTED
|| this._status === transaction_status_1.TransactionStatus.RELEASED)) return [3 /*break*/, 2];
this.addStatement(this.commandCommitTransaction(), []);
return [4 /*yield*/, this.executeStack()];
case 1:
_a.sent();
return [3 /*break*/, 4];
case 2:
batch = this.buildSqlBatch(this._stack);
this.clearStackTransaction();
this.status = transaction_status_1.TransactionStatus.STARTED;
return [4 /*yield*/, this.sqlBatch(batch)];
case 3:
_a.sent();
_a.label = 4;
case 4: return [2 /*return*/, this.finishTransaction(transaction_status_1.TransactionStatus.COMMITTED)];
}
});
});
};
/**
* Execute stack in Database
*/
ManagedTransaction.prototype.executeStack = function () {
return __awaiter(this, void 0, void 0, function () {
var batch;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (!(this._stack.length > 0)) return [3 /*break*/, 2];
batch = this.buildSqlExecute(this._stack);
return [4 /*yield*/, this.executeSql(batch.statement, batch.params)];
case 1:
_a.sent();
this.clearStackTransaction();
_a.label = 2;
case 2: return [2 /*return*/];
}
});
});
};
ManagedTransaction.prototype.checkParametersAllowedInTransaction = function () {
this._stack.forEach(function (itemStack) {
itemStack.params.forEach(function (param, index) {
if (param instanceof replacement_param_1.ReplacementParam) {
throw new core_1.DatabaseBuilderError("Insert cascading with autoincrement mapper not supported with transaction. (Found in \"".concat(itemStack.statement, "\", params: [").concat(itemStack.params.map(function (x) { return x instanceof replacement_param_1.ReplacementParam ? "[".concat(x.properties.join(","), "]") : x; }).join(","), "], paramIndex: ").concat(index, ")"));
}
});
});
};
/**
* check transaction is active (open, stated, released) and throw error if inactive
*/
ManagedTransaction.prototype.checkTransactionActive = function () {
if (!this.isTransactionActive()) {
throw new core_1.DatabaseBuilderError("Transaction (id: ".concat(this._idTransaction, ") is no longer active, and can no longer be used. Current status: ").concat(transaction_status_1.TransactionStatus[this._status]));
}
};
/**
* return true if transaction is active (open, stated, released)
*/
ManagedTransaction.prototype.isTransactionActive = function () {
return this._status === transaction_status_1.TransactionStatus.OPEN
|| this._status === transaction_status_1.TransactionStatus.STARTED
|| this._status === transaction_status_1.TransactionStatus.RELEASED;
};
/**
* Finish transaction and set status
* @param status Status for finished transaction
*/
ManagedTransaction.prototype.finishTransaction = function (status) {
this.status = status;
this.clearStackTransaction();
return true;
};
/**
* Clear stack transaction
*/
ManagedTransaction.prototype.clearStackTransaction = function () {
this._stack = [];
};
/**
* Convert Array commands for SqlBatch format
* @param compiled Array commands
*/
ManagedTransaction.prototype.buildSqlBatch = function (compiled) {
return compiled.map(function (x) {
var r = x.params.length > 0
? [x.statement, x.params]
: x.statement;
return r;
});
};
/**
* Convert Array commands for SqlExecute format
* @param compiled Array commands
*/
ManagedTransaction.prototype.buildSqlExecute = function (compiled) {
return compiled.reduce(function (previous, current) {
previous.statement += "".concat(current.statement, ";");
previous.params = __spreadArray(__spreadArray([], previous.params, true), current.params, true);
return previous;
}, { statement: "", params: [] });
};
/**
* Begin transaction
*/
ManagedTransaction.prototype.beginTransaction = function () {
return __awaiter(this, void 0, void 0, function () {
var result;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (this._status === transaction_status_1.TransactionStatus.STARTED) {
return [2 /*return*/, Promise.resolve(void 0)];
}
return [4 /*yield*/, this.executeSql("BEGIN TRANSACTION", [])];
case 1:
result = _a.sent();
this.status = transaction_status_1.TransactionStatus.STARTED;
return [2 /*return*/, result];
}
});
});
};
/**
* Command commit transaction
*/
ManagedTransaction.prototype.commandCommitTransaction = function () {
return "COMMIT TRANSACTION";
};
/**
* Command roolback transaction
*/
ManagedTransaction.prototype.commandRollbackTransaction = function () {
return "ROLLBACK TRANSACTION";
};
return ManagedTransaction;
}());
exports.ManagedTransaction = ManagedTransaction;