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Your IP : 3.15.18.157
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{ Driver, ReturningType } from \"../Driver\"\nimport { ConnectionIsNotSetError } from \"../../error/ConnectionIsNotSetError\"\nimport { DriverPackageNotInstalledError } from \"../../error/DriverPackageNotInstalledError\"\nimport { DriverUtils } from \"../DriverUtils\"\nimport { CteCapabilities } from \"../types/CteCapabilities\"\nimport { MysqlQueryRunner } from \"./MysqlQueryRunner\"\nimport { ObjectLiteral } from \"../../common/ObjectLiteral\"\nimport { ColumnMetadata } from \"../../metadata/ColumnMetadata\"\nimport { DateUtils } from \"../../util/DateUtils\"\nimport { PlatformTools } from \"../../platform/PlatformTools\"\nimport { DataSource } from \"../../data-source/DataSource\"\nimport { RdbmsSchemaBuilder } from \"../../schema-builder/RdbmsSchemaBuilder\"\nimport { MysqlConnectionOptions } from \"./MysqlConnectionOptions\"\nimport { MappedColumnTypes } from \"../types/MappedColumnTypes\"\nimport { ColumnType } from \"../types/ColumnTypes\"\nimport { DataTypeDefaults } from \"../types/DataTypeDefaults\"\nimport { TableColumn } from \"../../schema-builder/table/TableColumn\"\nimport { MysqlConnectionCredentialsOptions } from \"./MysqlConnectionCredentialsOptions\"\nimport { EntityMetadata } from \"../../metadata/EntityMetadata\"\nimport { OrmUtils } from \"../../util/OrmUtils\"\nimport { ApplyValueTransformers } from \"../../util/ApplyValueTransformers\"\nimport { ReplicationMode } from \"../types/ReplicationMode\"\nimport { TypeORMError } from \"../../error\"\nimport { Table } from \"../../schema-builder/table/Table\"\nimport { View } from \"../../schema-builder/view/View\"\nimport { TableForeignKey } from \"../../schema-builder/table/TableForeignKey\"\nimport { VersionUtils } from \"../../util/VersionUtils\"\nimport { InstanceChecker } from \"../../util/InstanceChecker\"\nimport { UpsertType } from \"../types/UpsertType\"\n\n/**\n * Organizes communication with MySQL DBMS.\n */\nexport class MysqlDriver implements Driver {\n // -------------------------------------------------------------------------\n // Public Properties\n // -------------------------------------------------------------------------\n\n /**\n * Connection used by driver.\n */\n connection: DataSource\n\n /**\n * Mysql underlying library.\n */\n mysql: any\n\n /**\n * Connection pool.\n * Used in non-replication mode.\n */\n pool: any\n\n /**\n * Pool cluster used in replication mode.\n */\n poolCluster: any\n\n // -------------------------------------------------------------------------\n // Public Implemented Properties\n // -------------------------------------------------------------------------\n\n /**\n * Connection options.\n */\n options: MysqlConnectionOptions\n\n /**\n * Version of MySQL. Requires a SQL query to the DB, so it is not always set\n */\n version?: string\n\n /**\n * Master database used to perform all write queries.\n */\n database?: string\n\n /**\n * Indicates if replication is enabled.\n */\n isReplicated: boolean = false\n\n /**\n * Indicates if tree tables are supported by this driver.\n */\n treeSupport = true\n\n /**\n * Represent transaction support by this driver\n */\n transactionSupport = \"nested\" as const\n\n /**\n * Gets list of supported column data types by a driver.\n *\n * @see https://www.tutorialspoint.com/mysql/mysql-data-types.htm\n * @see https://dev.mysql.com/doc/refman/8.0/en/data-types.html\n */\n supportedDataTypes: ColumnType[] = [\n // numeric types\n \"bit\",\n \"int\",\n \"integer\", // synonym for int\n \"tinyint\",\n \"smallint\",\n \"mediumint\",\n \"bigint\",\n \"float\",\n \"double\",\n \"double precision\", // synonym for double\n \"real\", // synonym for double\n \"decimal\",\n \"dec\", // synonym for decimal\n \"numeric\", // synonym for decimal\n \"fixed\", // synonym for decimal\n \"bool\", // synonym for tinyint\n \"boolean\", // synonym for tinyint\n // date and time types\n \"date\",\n \"datetime\",\n \"timestamp\",\n \"time\",\n \"year\",\n // string types\n \"char\",\n \"nchar\", // synonym for national char\n \"national char\",\n \"varchar\",\n \"nvarchar\", // synonym for national varchar\n \"national varchar\",\n \"blob\",\n \"text\",\n \"tinyblob\",\n \"tinytext\",\n \"mediumblob\",\n \"mediumtext\",\n \"longblob\",\n \"longtext\",\n \"enum\",\n \"set\",\n \"binary\",\n \"varbinary\",\n // json data type\n \"json\",\n // spatial data types\n \"geometry\",\n \"point\",\n \"linestring\",\n \"polygon\",\n \"multipoint\",\n \"multilinestring\",\n \"multipolygon\",\n \"geometrycollection\",\n // additional data types for mariadb\n \"uuid\",\n \"inet4\",\n \"inet6\",\n ]\n\n /**\n * Returns type of upsert supported by driver if any\n */\n supportedUpsertTypes: UpsertType[] = [\"on-duplicate-key-update\"]\n\n /**\n * Gets list of spatial column data types.\n */\n spatialTypes: ColumnType[] = [\n \"geometry\",\n \"point\",\n \"linestring\",\n \"polygon\",\n \"multipoint\",\n \"multilinestring\",\n \"multipolygon\",\n \"geometrycollection\",\n ]\n\n /**\n * Gets list of column data types that support length by a driver.\n */\n withLengthColumnTypes: ColumnType[] = [\n \"char\",\n \"varchar\",\n \"nvarchar\",\n \"binary\",\n \"varbinary\",\n ]\n\n /**\n * Gets list of column data types that support length by a driver.\n */\n withWidthColumnTypes: ColumnType[] = [\n \"bit\",\n \"tinyint\",\n \"smallint\",\n \"mediumint\",\n \"int\",\n \"integer\",\n \"bigint\",\n ]\n\n /**\n * Gets list of column data types that support precision by a driver.\n */\n withPrecisionColumnTypes: ColumnType[] = [\n \"decimal\",\n \"dec\",\n \"numeric\",\n \"fixed\",\n \"float\",\n \"double\",\n \"double precision\",\n \"real\",\n \"time\",\n \"datetime\",\n \"timestamp\",\n ]\n\n /**\n * Gets list of column data types that supports scale by a driver.\n */\n withScaleColumnTypes: ColumnType[] = [\n \"decimal\",\n \"dec\",\n \"numeric\",\n \"fixed\",\n \"float\",\n \"double\",\n \"double precision\",\n \"real\",\n ]\n\n /**\n * Gets list of column data types that supports UNSIGNED and ZEROFILL attributes.\n */\n unsignedAndZerofillTypes: ColumnType[] = [\n \"int\",\n \"integer\",\n \"smallint\",\n \"tinyint\",\n \"mediumint\",\n \"bigint\",\n \"decimal\",\n \"dec\",\n \"numeric\",\n \"fixed\",\n \"float\",\n \"double\",\n \"double precision\",\n \"real\",\n ]\n\n /**\n * ORM has special columns and we need to know what database column types should be for those columns.\n * Column types are driver dependant.\n */\n mappedDataTypes: MappedColumnTypes = {\n createDate: \"datetime\",\n createDatePrecision: 6,\n createDateDefault: \"CURRENT_TIMESTAMP(6)\",\n updateDate: \"datetime\",\n updateDatePrecision: 6,\n updateDateDefault: \"CURRENT_TIMESTAMP(6)\",\n deleteDate: \"datetime\",\n deleteDatePrecision: 6,\n deleteDateNullable: true,\n version: \"int\",\n treeLevel: \"int\",\n migrationId: \"int\",\n migrationName: \"varchar\",\n migrationTimestamp: \"bigint\",\n cacheId: \"int\",\n cacheIdentifier: \"varchar\",\n cacheTime: \"bigint\",\n cacheDuration: \"int\",\n cacheQuery: \"text\",\n cacheResult: \"text\",\n metadataType: \"varchar\",\n metadataDatabase: \"varchar\",\n metadataSchema: \"varchar\",\n metadataTable: \"varchar\",\n metadataName: \"varchar\",\n metadataValue: \"text\",\n }\n\n /**\n * Default values of length, precision and scale depends on column data type.\n * Used in the cases when length/precision/scale is not specified by user.\n */\n dataTypeDefaults: DataTypeDefaults = {\n varchar: { length: 255 },\n nvarchar: { length: 255 },\n \"national varchar\": { length: 255 },\n char: { length: 1 },\n binary: { length: 1 },\n varbinary: { length: 255 },\n decimal: { precision: 10, scale: 0 },\n dec: { precision: 10, scale: 0 },\n numeric: { precision: 10, scale: 0 },\n fixed: { precision: 10, scale: 0 },\n float: { precision: 12 },\n double: { precision: 22 },\n time: { precision: 0 },\n datetime: { precision: 0 },\n timestamp: { precision: 0 },\n bit: { width: 1 },\n int: { width: 11 },\n integer: { width: 11 },\n tinyint: { width: 4 },\n smallint: { width: 6 },\n mediumint: { width: 9 },\n bigint: { width: 20 },\n }\n\n /**\n * Max length allowed by MySQL for aliases.\n * @see https://dev.mysql.com/doc/refman/5.5/en/identifiers.html\n */\n maxAliasLength = 63\n\n cteCapabilities: CteCapabilities = {\n enabled: false,\n requiresRecursiveHint: true,\n }\n\n /**\n * Supported returning types\n */\n private readonly _isReturningSqlSupported: Record<ReturningType, boolean> =\n {\n delete: false,\n insert: false,\n update: false,\n }\n\n /** MariaDB supports uuid type for version 10.7.0 and up */\n private uuidColumnTypeSuported = false\n\n // -------------------------------------------------------------------------\n // Constructor\n // -------------------------------------------------------------------------\n\n constructor(connection: DataSource) {\n this.connection = connection\n this.options = {\n legacySpatialSupport: true,\n ...connection.options,\n } as MysqlConnectionOptions\n this.isReplicated = this.options.replication ? true : false\n\n // load mysql package\n this.loadDependencies()\n\n this.database = DriverUtils.buildDriverOptions(\n this.options.replication\n ? this.options.replication.master\n : this.options,\n ).database\n\n // validate options to make sure everything is set\n // todo: revisit validation with replication in mind\n // if (!(this.options.host || (this.options.extra && this.options.extra.socketPath)) && !this.options.socketPath)\n // throw new DriverOptionNotSetError(\"socketPath and host\");\n // if (!this.options.username)\n // throw new DriverOptionNotSetError(\"username\");\n // if (!this.options.database)\n // throw new DriverOptionNotSetError(\"database\");\n // todo: check what is going on when connection is setup without database and how to connect to a database then?\n // todo: provide options to auto-create a database if it does not exist yet\n }\n\n // -------------------------------------------------------------------------\n // Public Methods\n // -------------------------------------------------------------------------\n\n /**\n * Performs connection to the database.\n */\n async connect(): Promise<void> {\n if (this.options.replication) {\n this.poolCluster = this.mysql.createPoolCluster(\n this.options.replication,\n )\n this.options.replication.slaves.forEach((slave, index) => {\n this.poolCluster.add(\n \"SLAVE\" + index,\n this.createConnectionOptions(this.options, slave),\n )\n })\n this.poolCluster.add(\n \"MASTER\",\n this.createConnectionOptions(\n this.options,\n this.options.replication.master,\n ),\n )\n } else {\n this.pool = await this.createPool(\n this.createConnectionOptions(this.options, this.options),\n )\n }\n\n if (!this.database) {\n const queryRunner = await this.createQueryRunner(\"master\")\n\n this.database = await queryRunner.getCurrentDatabase()\n\n await queryRunner.release()\n }\n\n const queryRunner = this.createQueryRunner(\"master\")\n const result: {\n version: string\n }[] = await queryRunner.query(`SELECT VERSION() AS \\`version\\``)\n const dbVersion = result[0].version\n this.version = dbVersion\n await queryRunner.release()\n\n if (this.options.type === \"mariadb\") {\n if (VersionUtils.isGreaterOrEqual(dbVersion, \"10.0.5\")) {\n this._isReturningSqlSupported.delete = true\n }\n if (VersionUtils.isGreaterOrEqual(dbVersion, \"10.5.0\")) {\n this._isReturningSqlSupported.insert = true\n }\n if (VersionUtils.isGreaterOrEqual(dbVersion, \"10.2.0\")) {\n this.cteCapabilities.enabled = true\n }\n if (VersionUtils.isGreaterOrEqual(dbVersion, \"10.7.0\")) {\n this.uuidColumnTypeSuported = true\n }\n } else if (this.options.type === \"mysql\") {\n if (VersionUtils.isGreaterOrEqual(dbVersion, \"8.0.0\")) {\n this.cteCapabilities.enabled = true\n }\n }\n }\n\n /**\n * Makes any action after connection (e.g. create extensions in Postgres driver).\n */\n afterConnect(): Promise<void> {\n return Promise.resolve()\n }\n\n /**\n * Closes connection with the database.\n */\n async disconnect(): Promise<void> {\n if (!this.poolCluster && !this.pool)\n return Promise.reject(new ConnectionIsNotSetError(\"mysql\"))\n\n if (this.poolCluster) {\n return new Promise<void>((ok, fail) => {\n this.poolCluster.end((err: any) => (err ? fail(err) : ok()))\n this.poolCluster = undefined\n })\n }\n if (this.pool) {\n return new Promise<void>((ok, fail) => {\n this.pool.end((err: any) => {\n if (err) return fail(err)\n this.pool = undefined\n ok()\n })\n })\n }\n }\n\n /**\n * Creates a schema builder used to build and sync a schema.\n */\n createSchemaBuilder() {\n return new RdbmsSchemaBuilder(this.connection)\n }\n\n /**\n * Creates a query runner used to execute database queries.\n */\n createQueryRunner(mode: ReplicationMode) {\n return new MysqlQueryRunner(this, mode)\n }\n\n /**\n * Replaces parameters in the given sql with special escaping character\n * and an array of parameter names to be passed to a query.\n */\n escapeQueryWithParameters(\n sql: string,\n parameters: ObjectLiteral,\n nativeParameters: ObjectLiteral,\n ): [string, any[]] {\n const escapedParameters: any[] = Object.keys(nativeParameters).map(\n (key) => nativeParameters[key],\n )\n if (!parameters || !Object.keys(parameters).length)\n return [sql, escapedParameters]\n\n sql = sql.replace(\n /:(\\.\\.\\.)?([A-Za-z0-9_.]+)/g,\n (full, isArray: string, key: string): string => {\n if (!parameters.hasOwnProperty(key)) {\n return full\n }\n\n let value: any = parameters[key]\n\n if (isArray) {\n return value\n .map((v: any) => {\n escapedParameters.push(v)\n return this.createParameter(\n key,\n escapedParameters.length - 1,\n )\n })\n .join(\", \")\n }\n\n if (typeof value === \"function\") {\n return value()\n }\n\n escapedParameters.push(value)\n return this.createParameter(key, escapedParameters.length - 1)\n },\n ) // todo: make replace only in value statements, otherwise problems\n return [sql, escapedParameters]\n }\n\n /**\n * Escapes a column name.\n */\n escape(columnName: string): string {\n return \"`\" + columnName + \"`\"\n }\n\n /**\n * Build full table name with database name, schema name and table name.\n * E.g. myDB.mySchema.myTable\n */\n buildTableName(\n tableName: string,\n schema?: string,\n database?: string,\n ): string {\n let tablePath = [tableName]\n\n if (database) {\n tablePath.unshift(database)\n }\n\n return tablePath.join(\".\")\n }\n\n /**\n * Parse a target table name or other types and return a normalized table definition.\n */\n parseTableName(\n target: EntityMetadata | Table | View | TableForeignKey | string,\n ): { database?: string; schema?: string; tableName: string } {\n const driverDatabase = this.database\n const driverSchema = undefined\n\n if (InstanceChecker.isTable(target) || InstanceChecker.isView(target)) {\n const parsed = this.parseTableName(target.name)\n\n return {\n database: target.database || parsed.database || driverDatabase,\n schema: target.schema || parsed.schema || driverSchema,\n tableName: parsed.tableName,\n }\n }\n\n if (InstanceChecker.isTableForeignKey(target)) {\n const parsed = this.parseTableName(target.referencedTableName)\n\n return {\n database:\n target.referencedDatabase ||\n parsed.database ||\n driverDatabase,\n schema:\n target.referencedSchema || parsed.schema || driverSchema,\n tableName: parsed.tableName,\n }\n }\n\n if (InstanceChecker.isEntityMetadata(target)) {\n // EntityMetadata tableName is never a path\n\n return {\n database: target.database || driverDatabase,\n schema: target.schema || driverSchema,\n tableName: target.tableName,\n }\n }\n\n const parts = target.split(\".\")\n\n return {\n database:\n (parts.length > 1 ? parts[0] : undefined) || driverDatabase,\n schema: driverSchema,\n tableName: parts.length > 1 ? parts[1] : parts[0],\n }\n }\n\n /**\n * Prepares given value to a value to be persisted, based on its column type and metadata.\n */\n preparePersistentValue(value: any, columnMetadata: ColumnMetadata): any {\n if (columnMetadata.transformer)\n value = ApplyValueTransformers.transformTo(\n columnMetadata.transformer,\n value,\n )\n\n if (value === null || value === undefined) return value\n\n if (columnMetadata.type === Boolean) {\n return value === true ? 1 : 0\n } else if (columnMetadata.type === \"date\") {\n return DateUtils.mixedDateToDateString(value)\n } else if (columnMetadata.type === \"time\") {\n return DateUtils.mixedDateToTimeString(value)\n } else if (columnMetadata.type === \"json\") {\n return JSON.stringify(value)\n } else if (\n columnMetadata.type === \"timestamp\" ||\n columnMetadata.type === \"datetime\" ||\n columnMetadata.type === Date\n ) {\n return DateUtils.mixedDateToDate(value)\n } else if (columnMetadata.type === \"simple-array\") {\n return DateUtils.simpleArrayToString(value)\n } else if (columnMetadata.type === \"simple-json\") {\n return DateUtils.simpleJsonToString(value)\n } else if (\n columnMetadata.type === \"enum\" ||\n columnMetadata.type === \"simple-enum\"\n ) {\n return \"\" + value\n } else if (columnMetadata.type === \"set\") {\n return DateUtils.simpleArrayToString(value)\n } else if (columnMetadata.type === Number) {\n // convert to number if number\n value = !isNaN(+value) ? parseInt(value) : value\n }\n\n return value\n }\n\n /**\n * Prepares given value to a value to be persisted, based on its column type or metadata.\n */\n prepareHydratedValue(value: any, columnMetadata: ColumnMetadata): any {\n if (value === null || value === undefined)\n return columnMetadata.transformer\n ? ApplyValueTransformers.transformFrom(\n columnMetadata.transformer,\n value,\n )\n : value\n\n if (\n columnMetadata.type === Boolean ||\n columnMetadata.type === \"bool\" ||\n columnMetadata.type === \"boolean\"\n ) {\n value = value ? true : false\n } else if (\n columnMetadata.type === \"datetime\" ||\n columnMetadata.type === Date\n ) {\n value = DateUtils.normalizeHydratedDate(value)\n } else if (columnMetadata.type === \"date\") {\n value = DateUtils.mixedDateToDateString(value)\n } else if (columnMetadata.type === \"json\") {\n value = typeof value === \"string\" ? JSON.parse(value) : value\n } else if (columnMetadata.type === \"time\") {\n value = DateUtils.mixedTimeToString(value)\n } else if (columnMetadata.type === \"simple-array\") {\n value = DateUtils.stringToSimpleArray(value)\n } else if (columnMetadata.type === \"simple-json\") {\n value = DateUtils.stringToSimpleJson(value)\n } else if (\n (columnMetadata.type === \"enum\" ||\n columnMetadata.type === \"simple-enum\") &&\n columnMetadata.enum &&\n !isNaN(value) &&\n columnMetadata.enum.indexOf(parseInt(value)) >= 0\n ) {\n // convert to number if that exists in possible enum options\n value = parseInt(value)\n } else if (columnMetadata.type === \"set\") {\n value = DateUtils.stringToSimpleArray(value)\n } else if (columnMetadata.type === Number) {\n // convert to number if number\n value = !isNaN(+value) ? parseInt(value) : value\n }\n\n if (columnMetadata.transformer)\n value = ApplyValueTransformers.transformFrom(\n columnMetadata.transformer,\n value,\n )\n\n return value\n }\n\n /**\n * Creates a database type from a given column metadata.\n */\n normalizeType(column: {\n type: ColumnType\n length?: number | string\n precision?: number | null\n scale?: number\n }): string {\n if (column.type === Number || column.type === \"integer\") {\n return \"int\"\n } else if (column.type === String) {\n return \"varchar\"\n } else if (column.type === Date) {\n return \"datetime\"\n } else if ((column.type as any) === Buffer) {\n return \"blob\"\n } else if (column.type === Boolean) {\n return \"tinyint\"\n } else if (column.type === \"uuid\" && !this.uuidColumnTypeSuported) {\n return \"varchar\"\n } else if (\n column.type === \"json\" &&\n this.options.type === \"mariadb\" &&\n !VersionUtils.isGreaterOrEqual(this.version ?? \"0.0.0\", \"10.4.3\")\n ) {\n /*\n * MariaDB implements this as a LONGTEXT rather, as the JSON data type contradicts the SQL standard,\n * and MariaDB's benchmarks indicate that performance is at least equivalent.\n *\n * @see https://mariadb.com/kb/en/json-data-type/\n * if Version is 10.4.3 or greater, JSON is an alias for longtext and an automatic check_json(column) constraint is added\n */\n return \"longtext\"\n } else if (\n column.type === \"simple-array\" ||\n column.type === \"simple-json\"\n ) {\n return \"text\"\n } else if (column.type === \"simple-enum\") {\n return \"enum\"\n } else if (\n column.type === \"double precision\" ||\n column.type === \"real\"\n ) {\n return \"double\"\n } else if (\n column.type === \"dec\" ||\n column.type === \"numeric\" ||\n column.type === \"fixed\"\n ) {\n return \"decimal\"\n } else if (column.type === \"bool\" || column.type === \"boolean\") {\n return \"tinyint\"\n } else if (\n column.type === \"nvarchar\" ||\n column.type === \"national varchar\"\n ) {\n return \"varchar\"\n } else if (column.type === \"nchar\" || column.type === \"national char\") {\n return \"char\"\n } else {\n return (column.type as string) || \"\"\n }\n }\n\n /**\n * Normalizes \"default\" value of the column.\n */\n normalizeDefault(columnMetadata: ColumnMetadata): string | undefined {\n const defaultValue = columnMetadata.default\n\n if (defaultValue === null) {\n return undefined\n }\n\n if (\n (columnMetadata.type === \"enum\" ||\n columnMetadata.type === \"simple-enum\" ||\n typeof defaultValue === \"string\") &&\n defaultValue !== undefined\n ) {\n return `'${defaultValue}'`\n }\n\n if (columnMetadata.type === \"set\" && defaultValue !== undefined) {\n return `'${DateUtils.simpleArrayToString(defaultValue)}'`\n }\n\n if (typeof defaultValue === \"number\") {\n return `'${defaultValue.toFixed(columnMetadata.scale)}'`\n }\n\n if (typeof defaultValue === \"boolean\") {\n return defaultValue ? \"1\" : \"0\"\n }\n\n if (typeof defaultValue === \"function\") {\n const value = defaultValue()\n return this.normalizeDatetimeFunction(value)\n }\n\n if (defaultValue === undefined) {\n return undefined\n }\n\n return `${defaultValue}`\n }\n\n /**\n * Normalizes \"isUnique\" value of the column.\n */\n normalizeIsUnique(column: ColumnMetadata): boolean {\n return column.entityMetadata.indices.some(\n (idx) =>\n idx.isUnique &&\n idx.columns.length === 1 &&\n idx.columns[0] === column,\n )\n }\n\n /**\n * Returns default column lengths, which is required on column creation.\n */\n getColumnLength(column: ColumnMetadata | TableColumn): string {\n if (column.length) return column.length.toString()\n\n /**\n * fix https://github.com/typeorm/typeorm/issues/1139\n * note that if the db did support uuid column type it wouldn't have been defaulted to varchar\n */\n if (\n column.generationStrategy === \"uuid\" &&\n !this.uuidColumnTypeSuported\n )\n return \"36\"\n\n switch (column.type) {\n case String:\n case \"varchar\":\n case \"nvarchar\":\n case \"national varchar\":\n return \"255\"\n case \"varbinary\":\n return \"255\"\n default:\n return \"\"\n }\n }\n\n /**\n * Creates column type definition including length, precision and scale\n */\n createFullType(column: TableColumn): string {\n let type = column.type\n\n // used 'getColumnLength()' method, because MySQL requires column length for `varchar`, `nvarchar` and `varbinary` data types\n if (this.getColumnLength(column)) {\n type += `(${this.getColumnLength(column)})`\n } else if (column.width) {\n type += `(${column.width})`\n } else if (\n column.precision !== null &&\n column.precision !== undefined &&\n column.scale !== null &&\n column.scale !== undefined\n ) {\n type += `(${column.precision},${column.scale})`\n } else if (\n column.precision !== null &&\n column.precision !== undefined\n ) {\n type += `(${column.precision})`\n }\n\n if (column.isArray) type += \" array\"\n\n return type\n }\n\n /**\n * Obtains a new database connection to a master server.\n * Used for replication.\n * If replication is not setup then returns default connection's database connection.\n */\n obtainMasterConnection(): Promise<any> {\n return new Promise<any>((ok, fail) => {\n if (this.poolCluster) {\n this.poolCluster.getConnection(\n \"MASTER\",\n (err: any, dbConnection: any) => {\n err\n ? fail(err)\n : ok(this.prepareDbConnection(dbConnection))\n },\n )\n } else if (this.pool) {\n this.pool.getConnection((err: any, dbConnection: any) => {\n err ? fail(err) : ok(this.prepareDbConnection(dbConnection))\n })\n } else {\n fail(\n new TypeORMError(\n `Connection is not established with mysql database`,\n ),\n )\n }\n })\n }\n\n /**\n * Obtains a new database connection to a slave server.\n * Used for replication.\n * If replication is not setup then returns master (default) connection's database connection.\n */\n obtainSlaveConnection(): Promise<any> {\n if (!this.poolCluster) return this.obtainMasterConnection()\n\n return new Promise<any>((ok, fail) => {\n this.poolCluster.getConnection(\n \"SLAVE*\",\n (err: any, dbConnection: any) => {\n err ? fail(err) : ok(this.prepareDbConnection(dbConnection))\n },\n )\n })\n }\n\n /**\n * Creates generated map of values generated or returned by database after INSERT query.\n */\n createGeneratedMap(\n metadata: EntityMetadata,\n insertResult: any,\n entityIndex: number,\n ) {\n if (!insertResult) {\n return undefined\n }\n\n if (insertResult.insertId === undefined) {\n return Object.keys(insertResult).reduce((map, key) => {\n const column = metadata.findColumnWithDatabaseName(key)\n if (column) {\n OrmUtils.mergeDeep(\n map,\n column.createValueMap(insertResult[key]),\n )\n // OrmUtils.mergeDeep(map, column.createValueMap(this.prepareHydratedValue(insertResult[key], column))); // TODO: probably should be like there, but fails on enums, fix later\n }\n return map\n }, {} as ObjectLiteral)\n }\n\n const generatedMap = metadata.generatedColumns.reduce(\n (map, generatedColumn) => {\n let value: any\n if (\n generatedColumn.generationStrategy === \"increment\" &&\n insertResult.insertId\n ) {\n // NOTE: When multiple rows is inserted by a single INSERT statement,\n // `insertId` is the value generated for the first inserted row only.\n value = insertResult.insertId + entityIndex\n // } else if (generatedColumn.generationStrategy === \"uuid\") {\n // console.log(\"getting db value:\", generatedColumn.databaseName);\n // value = generatedColumn.getEntityValue(uuidMap);\n }\n\n return OrmUtils.mergeDeep(\n map,\n generatedColumn.createValueMap(value),\n )\n },\n {} as ObjectLiteral,\n )\n\n return Object.keys(generatedMap).length > 0 ? generatedMap : undefined\n }\n\n /**\n * Differentiate columns of this table and columns from the given column metadatas columns\n * and returns only changed.\n */\n findChangedColumns(\n tableColumns: TableColumn[],\n columnMetadatas: ColumnMetadata[],\n ): ColumnMetadata[] {\n return columnMetadatas.filter((columnMetadata) => {\n const tableColumn = tableColumns.find(\n (c) => c.name === columnMetadata.databaseName,\n )\n if (!tableColumn) return false // we don't need new columns, we only need exist and changed\n\n const isColumnChanged =\n tableColumn.name !== columnMetadata.databaseName ||\n this.isColumnDataTypeChanged(tableColumn, columnMetadata) ||\n tableColumn.length !== this.getColumnLength(columnMetadata) ||\n tableColumn.width !== columnMetadata.width ||\n (columnMetadata.precision !== undefined &&\n tableColumn.precision !== columnMetadata.precision) ||\n (columnMetadata.scale !== undefined &&\n tableColumn.scale !== columnMetadata.scale) ||\n tableColumn.zerofill !== columnMetadata.zerofill ||\n tableColumn.unsigned !== columnMetadata.unsigned ||\n tableColumn.asExpression !== columnMetadata.asExpression ||\n tableColumn.generatedType !== columnMetadata.generatedType ||\n tableColumn.comment !==\n this.escapeComment(columnMetadata.comment) ||\n !this.compareDefaultValues(\n this.normalizeDefault(columnMetadata),\n tableColumn.default,\n ) ||\n (tableColumn.enum &&\n columnMetadata.enum &&\n !OrmUtils.isArraysEqual(\n tableColumn.enum,\n columnMetadata.enum.map((val) => val + \"\"),\n )) ||\n tableColumn.onUpdate !==\n this.normalizeDatetimeFunction(columnMetadata.onUpdate) ||\n tableColumn.isPrimary !== columnMetadata.isPrimary ||\n !this.compareNullableValues(columnMetadata, tableColumn) ||\n tableColumn.isUnique !==\n this.normalizeIsUnique(columnMetadata) ||\n (columnMetadata.generationStrategy !== \"uuid\" &&\n tableColumn.isGenerated !== columnMetadata.isGenerated)\n\n // DEBUG SECTION\n // if (isColumnChanged) {\n // console.log(\"table:\", columnMetadata.entityMetadata.tableName)\n // console.log(\n // \"name:\",\n // tableColumn.name,\n // columnMetadata.databaseName,\n // )\n // console.log(\n // \"type:\",\n // tableColumn.type,\n // this.normalizeType(columnMetadata),\n // )\n // console.log(\n // \"length:\",\n // tableColumn.length,\n // columnMetadata.length,\n // )\n // console.log(\"width:\", tableColumn.width, columnMetadata.width)\n // console.log(\n // \"precision:\",\n // tableColumn.precision,\n // columnMetadata.precision,\n // )\n // console.log(\"scale:\", tableColumn.scale, columnMetadata.scale)\n // console.log(\n // \"zerofill:\",\n // tableColumn.zerofill,\n // columnMetadata.zerofill,\n // )\n // console.log(\n // \"unsigned:\",\n // tableColumn.unsigned,\n // columnMetadata.unsigned,\n // )\n // console.log(\n // \"asExpression:\",\n // tableColumn.asExpression,\n // columnMetadata.asExpression,\n // )\n // console.log(\n // \"generatedType:\",\n // tableColumn.generatedType,\n // columnMetadata.generatedType,\n // )\n // console.log(\n // \"comment:\",\n // tableColumn.comment,\n // this.escapeComment(columnMetadata.comment),\n // )\n // console.log(\n // \"default:\",\n // tableColumn.default,\n // this.normalizeDefault(columnMetadata),\n // )\n // console.log(\"enum:\", tableColumn.enum, columnMetadata.enum)\n // console.log(\n // \"default changed:\",\n // !this.compareDefaultValues(\n // this.normalizeDefault(columnMetadata),\n // tableColumn.default,\n // ),\n // )\n // console.log(\n // \"isPrimary:\",\n // tableColumn.isPrimary,\n // columnMetadata.isPrimary,\n // )\n // console.log(\n // \"isNullable changed:\",\n // !this.compareNullableValues(columnMetadata, tableColumn),\n // )\n // console.log(\n // \"isUnique:\",\n // tableColumn.isUnique,\n // this.normalizeIsUnique(columnMetadata),\n // )\n // console.log(\n // \"isGenerated:\",\n // tableColumn.isGenerated,\n // columnMetadata.isGenerated,\n // )\n // console.log(\n // columnMetadata.generationStrategy !== \"uuid\" &&\n // tableColumn.isGenerated !== columnMetadata.isGenerated,\n // )\n // console.log(\"==========================================\")\n // }\n\n return isColumnChanged\n })\n }\n\n /**\n * Returns true if driver supports RETURNING / OUTPUT statement.\n */\n isReturningSqlSupported(returningType: ReturningType): boolean {\n return this._isReturningSqlSupported[returningType]\n }\n\n /**\n * Returns true if driver supports uuid values generation on its own.\n */\n isUUIDGenerationSupported(): boolean {\n return false\n }\n\n /**\n * Returns true if driver supports fulltext indices.\n */\n isFullTextColumnTypeSupported(): boolean {\n return true\n }\n\n /**\n * Creates an escaped parameter.\n */\n createParameter(parameterName: string, index: number): string {\n return \"?\"\n }\n\n // -------------------------------------------------------------------------\n // Protected Methods\n // -------------------------------------------------------------------------\n\n /**\n * Loads all driver dependencies.\n */\n protected loadDependencies(): void {\n const connectorPackage = this.options.connectorPackage ?? \"mysql\"\n const fallbackConnectorPackage =\n connectorPackage === \"mysql\"\n ? (\"mysql2\" as const)\n : (\"mysql\" as const)\n try {\n // try to load first supported package\n const mysql =\n this.options.driver || PlatformTools.load(connectorPackage)\n this.mysql = mysql\n /*\n * Some frameworks (such as Jest) may mess up Node's require cache and provide garbage for the 'mysql' module\n * if it was not installed. We check that the object we got actually contains something otherwise we treat\n * it as if the `require` call failed.\n *\n * @see https://github.com/typeorm/typeorm/issues/1373\n */\n if (Object.keys(this.mysql).length === 0) {\n throw new TypeORMError(\n `'${connectorPackage}' was found but it is empty. Falling back to '${fallbackConnectorPackage}'.`,\n )\n }\n } catch (e) {\n try {\n this.mysql = PlatformTools.load(fallbackConnectorPackage) // try to load second supported package\n } catch (e) {\n throw new DriverPackageNotInstalledError(\n \"Mysql\",\n connectorPackage,\n )\n }\n }\n }\n\n /**\n * Creates a new connection pool for a given database credentials.\n */\n protected createConnectionOptions(\n options: MysqlConnectionOptions,\n credentials: MysqlConnectionCredentialsOptions,\n ): Promise<any> {\n credentials = Object.assign(\n {},\n credentials,\n DriverUtils.buildDriverOptions(credentials),\n ) // todo: do it better way\n\n // build connection options for the driver\n return Object.assign(\n {},\n {\n charset: options.charset,\n timezone: options.timezone,\n connectTimeout: options.connectTimeout,\n insecureAuth: options.insecureAuth,\n supportBigNumbers:\n options.supportBigNumbers !== undefined\n ? options.supportBigNumbers\n : true,\n bigNumberStrings:\n options.bigNumberStrings !== undefined\n ? options.bigNumberStrings\n : true,\n dateStrings: options.dateStrings,\n debug: options.debug,\n trace: options.trace,\n multipleStatements: options.multipleStatements,\n flags: options.flags,\n },\n {\n host: credentials.host,\n user: credentials.username,\n password: credentials.password,\n database: credentials.database,\n port: credentials.port,\n ssl: options.ssl,\n socketPath: credentials.socketPath,\n },\n options.acquireTimeout === undefined\n ? {}\n : { acquireTimeout: options.acquireTimeout },\n { connectionLimit: options.poolSize },\n options.extra || {},\n )\n }\n\n /**\n * Creates a new connection pool for a given database credentials.\n */\n protected createPool(connectionOptions: any): Promise<any> {\n // create a connection pool\n const pool = this.mysql.createPool(connectionOptions)\n\n // make sure connection is working fine\n return new Promise<void>((ok, fail) => {\n // (issue #610) we make first connection to database to make sure if connection credentials are wrong\n // we give error before calling any other method that creates actual query runner\n pool.getConnection((err: any, connection: any) => {\n if (err) return pool.end(() => fail(err))\n\n connection.release()\n ok(pool)\n })\n })\n }\n\n /**\n * Attaches all required base handlers to a database connection, such as the unhandled error handler.\n */\n private prepareDbConnection(connection: any): any {\n const { logger } = this.connection\n /*\n * Attaching an error handler to connection errors is essential, as, otherwise, errors raised will go unhandled and\n * cause the hosting app to crash.\n */\n if (connection.listeners(\"error\").length === 0) {\n connection.on(\"error\", (error: any) =>\n logger.log(\n \"warn\",\n `MySQL connection raised an error. ${error}`,\n ),\n )\n }\n return connection\n }\n\n /**\n * Checks if \"DEFAULT\" values in the column metadata and in the database are equal.\n */\n protected compareDefaultValues(\n columnMetadataValue: string | undefined,\n databaseValue: string | undefined,\n ): boolean {\n if (\n typeof columnMetadataValue === \"string\" &&\n typeof databaseValue === \"string\"\n ) {\n // we need to cut out \"'\" because in mysql we can understand returned value is a string or a function\n // as result compare cannot understand if default is really changed or not\n columnMetadataValue = columnMetadataValue.replace(/^'+|'+$/g, \"\")\n databaseValue = databaseValue.replace(/^'+|'+$/g, \"\")\n }\n\n return columnMetadataValue === databaseValue\n }\n\n compareNullableValues(\n columnMetadata: ColumnMetadata,\n tableColumn: TableColumn,\n ): boolean {\n // MariaDB does not support NULL/NOT NULL expressions for generated columns\n const isMariaDb = this.options.type === \"mariadb\"\n if (isMariaDb && columnMetadata.generatedType) {\n return true\n }\n\n return columnMetadata.isNullable === tableColumn.isNullable\n }\n\n /**\n * If parameter is a datetime function, e.g. \"CURRENT_TIMESTAMP\", normalizes it.\n * Otherwise returns original input.\n */\n protected normalizeDatetimeFunction(value?: string) {\n if (!value) return value\n\n // check if input is datetime function\n const isDatetimeFunction =\n value.toUpperCase().indexOf(\"CURRENT_TIMESTAMP\") !== -1 ||\n value.toUpperCase().indexOf(\"NOW\") !== -1\n\n if (isDatetimeFunction) {\n // extract precision, e.g. \"(3)\"\n const precision = value.match(/\\(\\d+\\)/)\n if (this.options.type === \"mariadb\") {\n return precision\n ? `CURRENT_TIMESTAMP${precision[0]}`\n : \"CURRENT_TIMESTAMP()\"\n } else {\n return precision\n ? `CURRENT_TIMESTAMP${precision[0]}`\n : \"CURRENT_TIMESTAMP\"\n }\n } else {\n return value\n }\n }\n\n /**\n * Escapes a given comment.\n */\n protected escapeComment(comment?: string) {\n if (!comment) return comment\n\n comment = comment.replace(/\\u0000/g, \"\") // Null bytes aren't allowed in comments\n\n return comment\n }\n\n /**\n * A helper to check if column data types have changed\n * This can be used to manage checking any types the\n * database may alias\n */\n private isColumnDataTypeChanged(\n tableColumn: TableColumn,\n columnMetadata: ColumnMetadata,\n ) {\n // this is an exception for mariadb versions where json is an alias for longtext\n if (\n this.normalizeType(columnMetadata) === \"json\" &&\n tableColumn.type.toLowerCase() === \"longtext\"\n )\n return false\n return tableColumn.type !== this.normalizeType(columnMetadata)\n }\n}\n"],"sourceRoot":"../.."}