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typeorm

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Data-Mapper ORM for TypeScript and ES2021+. Supports MySQL/MariaDB, PostgreSQL, MS SQL Server, Oracle, SAP HANA, SQLite, MongoDB databases.

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"use strict"; Object.defineProperty(exports, "__esModule", { value: true }); exports.SqlServerDriver = void 0; const ConnectionIsNotSetError_1 = require("../../error/ConnectionIsNotSetError"); const DriverPackageNotInstalledError_1 = require("../../error/DriverPackageNotInstalledError"); const DriverUtils_1 = require("../DriverUtils"); const SqlServerQueryRunner_1 = require("./SqlServerQueryRunner"); const DateUtils_1 = require("../../util/DateUtils"); const PlatformTools_1 = require("../../platform/PlatformTools"); const RdbmsSchemaBuilder_1 = require("../../schema-builder/RdbmsSchemaBuilder"); const MssqlParameter_1 = require("./MssqlParameter"); const TableColumn_1 = require("../../schema-builder/table/TableColumn"); const OrmUtils_1 = require("../../util/OrmUtils"); const ApplyValueTransformers_1 = require("../../util/ApplyValueTransformers"); const error_1 = require("../../error"); const InstanceChecker_1 = require("../../util/InstanceChecker"); const FindOperator_1 = require("../../find-options/FindOperator"); /** * Organizes communication with SQL Server DBMS. */ class SqlServerDriver { // ------------------------------------------------------------------------- // Constructor // ------------------------------------------------------------------------- constructor(connection) { /** * Pool for slave databases. * Used in replication. */ this.slaves = []; /** * Indicates if replication is enabled. */ this.isReplicated = false; /** * Indicates if tree tables are supported by this driver. */ this.treeSupport = true; /** * Represent transaction support by this driver */ this.transactionSupport = "simple"; /** * Gets list of supported column data types by a driver. * * @see https://docs.microsoft.com/en-us/sql/t-sql/data-types/data-types-transact-sql */ this.supportedDataTypes = [ "int", "bigint", "bit", "decimal", "money", "numeric", "smallint", "smallmoney", "tinyint", "float", "real", "date", "datetime2", "datetime", "datetimeoffset", "smalldatetime", "time", "char", "varchar", "text", "nchar", "nvarchar", "ntext", "binary", "image", "varbinary", "hierarchyid", "sql_variant", "timestamp", "uniqueidentifier", "xml", "geometry", "geography", "rowversion", ]; /** * Returns type of upsert supported by driver if any */ this.supportedUpsertTypes = ["merge-into"]; /** * Gets list of spatial column data types. */ this.spatialTypes = ["geometry", "geography"]; /** * Gets list of column data types that support length by a driver. */ this.withLengthColumnTypes = [ "char", "varchar", "nchar", "nvarchar", "binary", "varbinary", ]; /** * Gets list of column data types that support precision by a driver. */ this.withPrecisionColumnTypes = [ "decimal", "numeric", "time", "datetime2", "datetimeoffset", ]; /** * Gets list of column data types that support scale by a driver. */ this.withScaleColumnTypes = ["decimal", "numeric"]; /** * Orm has special columns and we need to know what database column types should be for those types. * Column types are driver dependant. */ this.mappedDataTypes = { createDate: "datetime2", createDateDefault: "getdate()", updateDate: "datetime2", updateDateDefault: "getdate()", deleteDate: "datetime2", deleteDateNullable: true, version: "int", treeLevel: "int", migrationId: "int", migrationName: "varchar", migrationTimestamp: "bigint", cacheId: "int", cacheIdentifier: "nvarchar", cacheTime: "bigint", cacheDuration: "int", cacheQuery: "nvarchar(MAX)", cacheResult: "nvarchar(MAX)", metadataType: "varchar", metadataDatabase: "varchar", metadataSchema: "varchar", metadataTable: "varchar", metadataName: "varchar", metadataValue: "nvarchar(MAX)", }; /** * The prefix used for the parameters */ this.parametersPrefix = "@"; /** * Default values of length, precision and scale depends on column data type. * Used in the cases when length/precision/scale is not specified by user. */ this.dataTypeDefaults = { char: { length: 1 }, nchar: { length: 1 }, varchar: { length: 255 }, nvarchar: { length: 255 }, binary: { length: 1 }, varbinary: { length: 1 }, decimal: { precision: 18, scale: 0 }, numeric: { precision: 18, scale: 0 }, time: { precision: 7 }, datetime2: { precision: 7 }, datetimeoffset: { precision: 7 }, }; this.cteCapabilities = { enabled: true, // todo: enable it for SQL Server - it's partially supported, but there are issues with generation of non-standard OUTPUT clause writable: false, }; /** * Max length allowed by MSSQL Server for aliases (identifiers). * @see https://docs.microsoft.com/en-us/sql/sql-server/maximum-capacity-specifications-for-sql-server */ this.maxAliasLength = 128; this.connection = connection; this.options = connection.options; this.isReplicated = this.options.replication ? true : false; // load mssql package this.loadDependencies(); this.database = DriverUtils_1.DriverUtils.buildDriverOptions(this.options.replication ? this.options.replication.master : this.options).database; this.schema = DriverUtils_1.DriverUtils.buildDriverOptions(this.options).schema; // Object.assign(connection.options, DriverUtils.buildDriverOptions(connection.options)); // todo: do it better way // validate options to make sure everything is set // if (!this.options.host) // throw new DriverOptionNotSetError("host"); // if (!this.options.username) // throw new DriverOptionNotSetError("username"); // if (!this.options.database) // throw new DriverOptionNotSetError("database"); } // ------------------------------------------------------------------------- // Public Implemented Methods // ------------------------------------------------------------------------- /** * Performs connection to the database. * Based on pooling options, it can either create connection immediately, * either create a pool and create connection when needed. */ async connect() { if (this.options.replication) { this.slaves = await Promise.all(this.options.replication.slaves.map((slave) => { return this.createPool(this.options, slave); })); this.master = await this.createPool(this.options, this.options.replication.master); } else { this.master = await this.createPool(this.options, this.options); } if (!this.database || !this.searchSchema) { const queryRunner = this.createQueryRunner("master"); if (!this.database) { this.database = await queryRunner.getCurrentDatabase(); } if (!this.searchSchema) { this.searchSchema = await queryRunner.getCurrentSchema(); } await queryRunner.release(); } if (!this.schema) { this.schema = this.searchSchema; } } /** * Makes any action after connection (e.g. create extensions in Postgres driver). */ afterConnect() { return Promise.resolve(); } /** * Closes connection with the database. */ async disconnect() { if (!this.master) { throw new ConnectionIsNotSetError_1.ConnectionIsNotSetError("mssql"); } await this.closePool(this.master); await Promise.all(this.slaves.map((slave) => this.closePool(slave))); this.master = undefined; this.slaves = []; } /** * Closes connection pool. */ async closePool(pool) { return new Promise((ok, fail) => { pool.close((err) => (err ? fail(err) : ok())); }); } /** * Creates a schema builder used to build and sync a schema. */ createSchemaBuilder() { return new RdbmsSchemaBuilder_1.RdbmsSchemaBuilder(this.connection); } /** * Creates a query runner used to execute database queries. */ createQueryRunner(mode) { return new SqlServerQueryRunner_1.SqlServerQueryRunner(this, mode); } /** * Replaces parameters in the given sql with special escaping character * and an array of parameter names to be passed to a query. */ escapeQueryWithParameters(sql, parameters, nativeParameters) { const escapedParameters = Object.keys(nativeParameters).map((key) => nativeParameters[key]); if (!parameters || !Object.keys(parameters).length) return [sql, escapedParameters]; const parameterIndexMap = new Map(); sql = sql.replace(/:(\.\.\.)?([A-Za-z0-9_.]+)/g, (full, isArray, key) => { if (!parameters.hasOwnProperty(key)) { return full; } if (parameterIndexMap.has(key)) { return this.parametersPrefix + parameterIndexMap.get(key); } const value = parameters[key]; if (isArray) { return value .map((v) => { escapedParameters.push(v); return this.createParameter(key, escapedParameters.length - 1); }) .join(", "); } if (typeof value === "function") { return value(); } escapedParameters.push(value); parameterIndexMap.set(key, escapedParameters.length - 1); return this.createParameter(key, escapedParameters.length - 1); }); // todo: make replace only in value statements, otherwise problems return [sql, escapedParameters]; } /** * Escapes a column name. */ escape(columnName) { return `"${columnName}"`; } /** * Build full table name with database name, schema name and table name. * E.g. myDB.mySchema.myTable */ buildTableName(tableName, schema, database) { const tablePath = [tableName]; if (schema) { tablePath.unshift(schema); } if (database) { if (!schema) { tablePath.unshift(""); } tablePath.unshift(database); } return tablePath.join("."); } /** * Parse a target table name or other types and return a normalized table definition. */ parseTableName(target) { const driverDatabase = this.database; const driverSchema = this.schema; if (InstanceChecker_1.InstanceChecker.isTable(target) || InstanceChecker_1.InstanceChecker.isView(target)) { const parsed = this.parseTableName(target.name); return { database: target.database || parsed.database || driverDatabase, schema: target.schema || parsed.schema || driverSchema, tableName: parsed.tableName, }; } if (InstanceChecker_1.InstanceChecker.isTableForeignKey(target)) { const parsed = this.parseTableName(target.referencedTableName); return { database: target.referencedDatabase || parsed.database || driverDatabase, schema: target.referencedSchema || parsed.schema || driverSchema, tableName: parsed.tableName, }; } if (InstanceChecker_1.InstanceChecker.isEntityMetadata(target)) { // EntityMetadata tableName is never a path return { database: target.database || driverDatabase, schema: target.schema || driverSchema, tableName: target.tableName, }; } const parts = target.split("."); if (parts.length === 3) { return { database: parts[0] || driverDatabase, schema: parts[1] || driverSchema, tableName: parts[2], }; } else if (parts.length === 2) { return { database: driverDatabase, schema: parts[0], tableName: parts[1], }; } else { return { database: driverDatabase, schema: driverSchema, tableName: target, }; } } /** * Prepares given value to a value to be persisted, based on its column type and metadata. */ preparePersistentValue(value, columnMetadata) { if (columnMetadata.transformer) value = ApplyValueTransformers_1.ApplyValueTransformers.transformTo(columnMetadata.transformer, value); if (value === null || value === undefined) return value; if (columnMetadata.type === Boolean) { return value === true ? 1 : 0; } else if (columnMetadata.type === "date") { return DateUtils_1.DateUtils.mixedDateToDate(value); } else if (columnMetadata.type === "time") { return DateUtils_1.DateUtils.mixedTimeToDate(value); } else if (columnMetadata.type === "datetime" || columnMetadata.type === "smalldatetime" || columnMetadata.type === Date) { return DateUtils_1.DateUtils.mixedDateToDate(value, false, false); } else if (columnMetadata.type === "datetime2" || columnMetadata.type === "datetimeoffset") { return DateUtils_1.DateUtils.mixedDateToDate(value, false, true); } else if (columnMetadata.type === "simple-array") { return DateUtils_1.DateUtils.simpleArrayToString(value); } else if (columnMetadata.type === "simple-json") { return DateUtils_1.DateUtils.simpleJsonToString(value); } else if (columnMetadata.type === "simple-enum") { return DateUtils_1.DateUtils.simpleEnumToString(value); } return value; } /** * Prepares given value to a value to be persisted, based on its column type or metadata. */ prepareHydratedValue(value, columnMetadata) { if (value === null || value === undefined) return columnMetadata.transformer ? ApplyValueTransformers_1.ApplyValueTransformers.transformFrom(columnMetadata.transformer, value) : value; if (columnMetadata.type === Boolean) { value = value ? true : false; } else if (columnMetadata.type === "datetime" || columnMetadata.type === Date || columnMetadata.type === "datetime2" || columnMetadata.type === "smalldatetime" || columnMetadata.type === "datetimeoffset") { value = DateUtils_1.DateUtils.normalizeHydratedDate(value); } else if (columnMetadata.type === "date") { value = DateUtils_1.DateUtils.mixedDateToDateString(value); } else if (columnMetadata.type === "time") { value = DateUtils_1.DateUtils.mixedTimeToString(value); } else if (columnMetadata.type === "simple-array") { value = DateUtils_1.DateUtils.stringToSimpleArray(value); } else if (columnMetadata.type === "simple-json") { value = DateUtils_1.DateUtils.stringToSimpleJson(value); } else if (columnMetadata.type === "simple-enum") { value = DateUtils_1.DateUtils.stringToSimpleEnum(value, columnMetadata); } else if (columnMetadata.type === Number) { // convert to number if number value = !isNaN(+value) ? parseInt(value) : value; } if (columnMetadata.transformer) value = ApplyValueTransformers_1.ApplyValueTransformers.transformFrom(columnMetadata.transformer, value); return value; } /** * Creates a database type from a given column metadata. */ normalizeType(column) { if (column.type === Number || column.type === "integer") { return "int"; } else if (column.type === String) { return "nvarchar"; } else if (column.type === Date) { return "datetime"; } else if (column.type === Boolean) { return "bit"; } else if (column.type === Buffer) { return "binary"; } else if (column.type === "uuid") { return "uniqueidentifier"; } else if (column.type === "simple-array" || column.type === "simple-json") { return "ntext"; } else if (column.type === "simple-enum") { return "nvarchar"; } else if (column.type === "dec") { return "decimal"; } else if (column.type === "double precision") { return "float"; } else if (column.type === "rowversion") { return "timestamp"; // the rowversion type's name in SQL server metadata is timestamp } else { return column.type || ""; } } /** * Normalizes "default" value of the column. */ normalizeDefault(columnMetadata) { const defaultValue = columnMetadata.default; if (typeof defaultValue === "number") { return `${defaultValue}`; } if (typeof defaultValue === "boolean") { return defaultValue ? "1" : "0"; } if (typeof defaultValue === "function") { const value = defaultValue(); if (value.toUpperCase() === "CURRENT_TIMESTAMP") { return "getdate()"; } return value; } if (typeof defaultValue === "string") { return `'${defaultValue}'`; } if (defaultValue === undefined || defaultValue === null) { return undefined; } return `${defaultValue}`; } /** * Normalizes "isUnique" value of the column. */ normalizeIsUnique(column) { return column.entityMetadata.uniques.some((uq) => uq.columns.length === 1 && uq.columns[0] === column); } /** * Returns default column lengths, which is required on column creation. */ getColumnLength(column) { if (column.length) return column.length.toString(); if (column.type === "varchar" || column.type === "nvarchar" || column.type === String) return "255"; return ""; } /** * Creates column type definition including length, precision and scale */ createFullType(column) { // The Database Engine determines the data type of the computed column by applying the rules // of data type precedence to the expressions specified in the formula. if (column.asExpression) return ""; let type = column.type; // used 'getColumnLength()' method, because SqlServer sets `varchar` and `nvarchar` length to 1 by default. if (this.getColumnLength(column)) { type += `(${this.getColumnLength(column)})`; } else if (column.precision !== null && column.precision !== undefined && column.scale !== null && column.scale !== undefined) { type += `(${column.precision},${column.scale})`; } else if (column.precision !== null && column.precision !== undefined) { type += `(${column.precision})`; } if (column.isArray) type += " array"; return type; } /** * Obtains a new database connection to a master server. * Used for replication. * If replication is not setup then returns default connection's database connection. */ obtainMasterConnection() { if (!this.master) { return Promise.reject(new error_1.TypeORMError("Driver not Connected")); } return Promise.resolve(this.master); } /** * Obtains a new database connection to a slave server. * Used for replication. * If replication is not setup then returns master (default) connection's database connection. */ obtainSlaveConnection() { if (!this.slaves.length) return this.obtainMasterConnection(); const random = Math.floor(Math.random() * this.slaves.length); return Promise.resolve(this.slaves[random]); } /** * Creates generated map of values generated or returned by database after INSERT query. */ createGeneratedMap(metadata, insertResult) { if (!insertResult) return undefined; return Object.keys(insertResult).reduce((map, key) => { const column = metadata.findColumnWithDatabaseName(key); if (column) { OrmUtils_1.OrmUtils.mergeDeep(map, column.createValueMap(this.prepareHydratedValue(insertResult[key], column))); } return map; }, {}); } /** * Differentiate columns of this table and columns from the given column metadatas columns * and returns only changed. */ findChangedColumns(tableColumns, columnMetadatas) { return columnMetadatas.filter((columnMetadata) => { const tableColumn = tableColumns.find((c) => c.name === columnMetadata.databaseName); if (!tableColumn) return false; // we don't need new columns, we only need exist and changed const isColumnChanged = tableColumn.name !== columnMetadata.databaseName || this.compareColumnType(tableColumn, columnMetadata) || this.compareColumnLength(tableColumn, columnMetadata) || tableColumn.precision !== columnMetadata.precision || tableColumn.scale !== columnMetadata.scale || // || tableColumn.comment !== columnMetadata.comment || // todo tableColumn.isGenerated !== columnMetadata.isGenerated || (!tableColumn.isGenerated && this.lowerDefaultValueIfNecessary(this.normalizeDefault(columnMetadata)) !== this.lowerDefaultValueIfNecessary(tableColumn.default)) || // we included check for generated here, because generated columns already can have default values tableColumn.isPrimary !== columnMetadata.isPrimary || tableColumn.isNullable !== columnMetadata.isNullable || tableColumn.asExpression !== columnMetadata.asExpression || tableColumn.generatedType !== columnMetadata.generatedType || tableColumn.isUnique !== this.normalizeIsUnique(columnMetadata) || (tableColumn.enum && columnMetadata.enum && !OrmUtils_1.OrmUtils.isArraysEqual(tableColumn.enum, columnMetadata.enum.map((val) => val + ""))); // DEBUG SECTION // if (isColumnChanged) { // console.log("table:", columnMetadata.entityMetadata.tableName) // console.log( // "name:", // tableColumn.name, // columnMetadata.databaseName, // ) // console.log( // "type:", // tableColumn.type, // this.normalizeType(columnMetadata), // this.compareColumnType(tableColumn, columnMetadata), // ) // console.log( // "length:", // tableColumn.length, // columnMetadata.length, // this.compareColumnLength(tableColumn, columnMetadata), // ) // console.log( // "precision:", // tableColumn.precision, // columnMetadata.precision, // ) // console.log("scale:", tableColumn.scale, columnMetadata.scale) // console.log( // "isGenerated:", // tableColumn.isGenerated, // columnMetadata.isGenerated, // ) // console.log( // "isGenerated 2:", // !tableColumn.isGenerated && // this.lowerDefaultValueIfNecessary( // this.normalizeDefault(columnMetadata), // ) !== // this.lowerDefaultValueIfNecessary( // tableColumn.default, // ), // ) // console.log( // "isPrimary:", // tableColumn.isPrimary, // columnMetadata.isPrimary, // ) // console.log( // "isNullable:", // tableColumn.isNullable, // columnMetadata.isNullable, // ) // console.log( // "asExpression:", // tableColumn.asExpression, // columnMetadata.asExpression, // ) // console.log( // "generatedType:", // tableColumn.generatedType, // columnMetadata.generatedType, // ) // console.log( // "isUnique:", // tableColumn.isUnique, // this.normalizeIsUnique(columnMetadata), // ) // console.log("==========================================") // } return isColumnChanged; }); } /** * Returns true if driver supports RETURNING / OUTPUT statement. */ isReturningSqlSupported() { if (this.options.options && this.options.options.disableOutputReturning) { return false; } return true; } /** * Returns true if driver supports uuid values generation on its own. */ isUUIDGenerationSupported() { return true; } /** * Returns true if driver supports fulltext indices. */ isFullTextColumnTypeSupported() { return false; } /** * Creates an escaped parameter. */ createParameter(parameterName, index) { return this.parametersPrefix + index; } // ------------------------------------------------------------------------- // Public Methods // ------------------------------------------------------------------------- /** * Sql server's parameters needs to be wrapped into special object with type information about this value. * This method wraps given value into MssqlParameter based on its column definition. */ parametrizeValue(column, value) { // if its already MssqlParameter then simply return it if (InstanceChecker_1.InstanceChecker.isMssqlParameter(value)) return value; const normalizedType = this.normalizeType({ type: column.type }); if (column.length) { return new MssqlParameter_1.MssqlParameter(value, normalizedType, column.length); } else if (column.precision !== null && column.precision !== undefined && column.scale !== null && column.scale !== undefined) { return new MssqlParameter_1.MssqlParameter(value, normalizedType, column.precision, column.scale); } else if (column.precision !== null && column.precision !== undefined) { return new MssqlParameter_1.MssqlParameter(value, normalizedType, column.precision); } else if (column.scale !== null && column.scale !== undefined) { return new MssqlParameter_1.MssqlParameter(value, normalizedType, column.scale); } return new MssqlParameter_1.MssqlParameter(value, normalizedType); } /** * Recursively wraps values (including those inside FindOperators) into MssqlParameter instances, * ensuring correct type metadata is passed to the SQL Server driver. * * - If the value is a FindOperator containing an array, all elements are individually parametrized. * - If the value is a non-raw FindOperator, a transformation is applied to its internal value. * - Otherwise, the value is passed directly to parametrizeValue for wrapping. * * This ensures SQL Server receives properly typed parameters for queries involving operators like * In, MoreThan, Between, etc. */ parametrizeValues(column, value) { if (value instanceof FindOperator_1.FindOperator) { if (value.type !== "raw") { value.transformValue({ to: (v) => this.parametrizeValues(column, v), from: (v) => v, }); } return value; } return this.parametrizeValue(column, value); } /** * Sql server's parameters needs to be wrapped into special object with type information about this value. * This method wraps all values of the given object into MssqlParameter based on their column definitions in the given table. */ parametrizeMap(tablePath, map) { // find metadata for the given table if (!this.connection.hasMetadata(tablePath)) // if no metadata found then we can't proceed because we don't have columns and their types return map; const metadata = this.connection.getMetadata(tablePath); return Object.keys(map).reduce((newMap, key) => { const value = map[key]; // find column metadata const column = metadata.findColumnWithDatabaseName(key); if (!column) // if we didn't find a column then we can't proceed because we don't have a column type return value; newMap[key] = this.parametrizeValue(column, value); return newMap; }, {}); } buildTableVariableDeclaration(identifier, columns) { const outputColumns = columns.map((column) => { return `${this.escape(column.databaseName)} ${this.createFullType(new TableColumn_1.TableColumn({ name: column.databaseName, type: this.normalizeType(column), length: column.length, isNullable: column.isNullable, isArray: column.isArray, }))}`; }); return `DECLARE ${identifier} TABLE (${outputColumns.join(", ")})`; } // ------------------------------------------------------------------------- // Protected Methods // ------------------------------------------------------------------------- /** * If driver dependency is not given explicitly, then try to load it via "require". */ loadDependencies() { try { const mssql = this.options.driver || PlatformTools_1.PlatformTools.load("mssql"); this.mssql = mssql; } catch (e) { // todo: better error for browser env throw new DriverPackageNotInstalledError_1.DriverPackageNotInstalledError("SQL Server", "mssql"); } } compareColumnType(tableColumn, columnMetadata) { // The Database Engine determines the data type of the computed column by applying the rules // of data type precedence to the expressions specified in the formula. if (columnMetadata.asExpression) return false; return tableColumn.type !== this.normalizeType(columnMetadata); } compareColumnLength(tableColumn, columnMetadata) { // The Database Engine determines the data type of the computed column by applying the rules // of data type precedence to the expressions specified in the formula. if (columnMetadata.asExpression) return false; return (tableColumn.length.toUpperCase() !== this.getColumnLength(columnMetadata).toUpperCase()); } lowerDefaultValueIfNecessary(value) { // SqlServer saves function calls in default value as lowercase https://github.com/typeorm/typeorm/issues/2733 if (!value) { return value; } return value .split(`'`) .map((v, i) => { return i % 2 === 1 ? v : v.toLowerCase(); }) .join(`'`); } /** * Creates a new connection pool for a given database credentials. */ createPool(options, credentials) { credentials = Object.assign({}, credentials, DriverUtils_1.DriverUtils.buildDriverOptions(credentials)); // todo: do it better way // todo: credentials.domain is deprecation. remove it in future const authentication = !credentials.domain ? credentials.authentication : { type: "ntlm", options: { domain: credentials.domain, userName: credentials.username, password: credentials.password, }, }; // build connection options for the driver const connectionOptions = Object.assign({}, { connectionTimeout: this.options.connectionTimeout, requestTimeout: this.options.requestTimeout, stream: this.options.stream, pool: this.options.pool, options: this.options.options, }, { server: credentials.host, database: credentials.database, port: credentials.port, user: credentials.username, password: credentials.password, authentication: authentication, }, options.extra || {}); // set default useUTC option if it hasn't been set if (!connectionOptions.options) { connectionOptions.options = { useUTC: false }; } else if (!connectionOptions.options.useUTC) { Object.assign(connectionOptions.options, { useUTC: false }); } // Match the next release of tedious for configuration options // Also prevents warning messages. Object.assign(connectionOptions.options, { enableArithAbort: true }); // pooling is enabled either when its set explicitly to true, // either when its not defined at all (e.g. enabled by default) return new Promise((ok, fail) => { const pool = new this.mssql.ConnectionPool(connectionOptions); const { logger } = this.connection; const poolErrorHandler = (options.pool && options.pool.errorHandler) || ((error) => logger.log("warn", `MSSQL pool raised an error. ${error}`)); /** * Attaching an error handler to pool errors is essential, as, otherwise, errors raised will go unhandled and * cause the hosting app to crash. */ pool.on("error", poolErrorHandler); const connection = pool.connect((err) => { if (err) return fail(err); ok(connection); }); }); } } exports.SqlServerDriver = SqlServerDriver; //# sourceMappingURL=SqlServerDriver.js.map