Merge pull request #3437 from Budibase/oracle-datatasource-plus
Oracle datatasource plus
This commit is contained in:
Rory Powell
GitHub
commit
6f0f431fd3
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@ -0,0 +1,31 @@
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module OracleDbMock {
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// mock execute
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const execute = jest.fn(() => ({
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rows: [
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{
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a: "string",
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b: 1,
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},
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],
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}))
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const close = jest.fn()
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// mock connection
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function Connection() {}
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Connection.prototype.execute = execute
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Connection.prototype.close = close
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// mock oracledb
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const oracleDb: any = {}
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oracleDb.getConnection = jest.fn(() => {
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// @ts-ignore
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return new Connection()
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})
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// expose mocks
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oracleDb.executeMock = execute
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oracleDb.closeMock = close
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module.exports = oracleDb
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}
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@ -3,14 +3,28 @@ import {
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DatasourceFieldTypes,
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QueryTypes,
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SqlQuery,
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QueryJson,
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} from "../definitions/datasource"
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import { getSqlQuery } from "./utils"
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import oracledb, { ExecuteOptions, Result, Connection, ConnectionAttributes } from "oracledb"
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import {
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finaliseExternalTables,
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getSqlQuery,
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buildExternalTableId,
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convertType,
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} from "./utils"
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import oracledb, {
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ExecuteOptions,
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Result,
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Connection,
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ConnectionAttributes,
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BindParameters,
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} from "oracledb"
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import Sql from "./base/sql"
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import { Table } from "../definitions/common"
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import { DatasourcePlus } from "./base/datasourcePlus"
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import { FieldTypes } from "../constants"
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module OracleModule {
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oracledb.outFormat = oracledb.OUT_FORMAT_OBJECT;
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oracledb.outFormat = oracledb.OUT_FORMAT_OBJECT
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interface OracleConfig {
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host: string
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@ -22,8 +36,10 @@ module OracleModule {
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const SCHEMA: Integration = {
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docs: "https://github.com/oracle/node-oracledb",
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plus: true,
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friendlyName: "Oracle",
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description: "Oracle Database is an object-relational database management system developed by Oracle Corporation",
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description:
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"Oracle Database is an object-relational database management system developed by Oracle Corporation",
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datasource: {
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host: {
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type: DatasourceFieldTypes.STRING,
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@ -46,7 +62,7 @@ module OracleModule {
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password: {
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type: DatasourceFieldTypes.PASSWORD,
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required: true,
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}
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},
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},
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query: {
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create: {
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@ -63,64 +79,361 @@ module OracleModule {
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},
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},
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}
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class OracleIntegration extends Sql {
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const UNSUPPORTED_TYPES = ["BLOB", "CLOB", "NCLOB"]
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const TYPE_MAP = {
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long: FieldTypes.LONGFORM,
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number: FieldTypes.NUMBER,
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binary_float: FieldTypes.NUMBER,
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binary_double: FieldTypes.NUMBER,
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timestamp: FieldTypes.DATETIME,
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date: FieldTypes.DATETIME,
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}
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/**
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* Raw query response
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*/
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interface ColumnsResponse {
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TABLE_NAME: string
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COLUMN_NAME: string
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DATA_TYPE: string
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DATA_DEFAULT: string | null
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COLUMN_ID: number
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CONSTRAINT_NAME: string | null
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CONSTRAINT_TYPE: string | null
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R_CONSTRAINT_NAME: string | null
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SEARCH_CONDITION: string | null
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}
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/**
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* An oracle constraint
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*/
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interface OracleConstraint {
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name: string
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type: string
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relatedConstraintName: string | null
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searchCondition: string | null
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}
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/**
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* An oracle column and it's related constraints
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*/
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interface OracleColumn {
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name: string
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type: string
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default: string | null
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id: number
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constraints: { [key: string]: OracleConstraint }
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}
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/**
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* An oracle table and it's related columns
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*/
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interface OracleTable {
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name: string
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columns: { [key: string]: OracleColumn }
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}
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const OracleContraintTypes = {
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PRIMARY: "P",
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NOT_NULL_OR_CHECK: "C",
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FOREIGN_KEY: "R",
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UNIQUE: "U",
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}
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class OracleIntegration extends Sql implements DatasourcePlus {
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private readonly config: OracleConfig
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public tables: Record<string, Table> = {}
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public schemaErrors: Record<string, string> = {}
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private readonly COLUMNS_SQL = `
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SELECT
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tabs.table_name,
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cols.column_name,
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cols.data_type,
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cols.data_default,
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cols.column_id,
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cons.constraint_name,
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cons.constraint_type,
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cons.r_constraint_name,
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cons.search_condition
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FROM
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user_tables tabs
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JOIN
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user_tab_columns cols
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ON tabs.table_name = cols.table_name
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LEFT JOIN
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user_cons_columns col_cons
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ON cols.column_name = col_cons.column_name
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AND cols.table_name = col_cons.table_name
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LEFT JOIN
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user_constraints cons
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ON col_cons.constraint_name = cons.constraint_name
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AND cons.table_name = cols.table_name
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WHERE
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(cons.status = 'ENABLED'
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OR cons.status IS NULL)
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`
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constructor(config: OracleConfig) {
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super("oracle")
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super("oracledb")
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this.config = config
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}
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private query = async (query: SqlQuery): Promise<Result<any>> => {
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/**
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* Map the flat tabular columns and constraints data into a nested object
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*/
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private mapColumns(result: Result<ColumnsResponse>): {
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[key: string]: OracleTable
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} {
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const oracleTables: { [key: string]: OracleTable } = {}
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if (result.rows) {
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result.rows.forEach(row => {
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const tableName = row.TABLE_NAME
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const columnName = row.COLUMN_NAME
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const dataType = row.DATA_TYPE
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const dataDefault = row.DATA_DEFAULT
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const columnId = row.COLUMN_ID
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const constraintName = row.CONSTRAINT_NAME
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const constraintType = row.CONSTRAINT_TYPE
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const relatedConstraintName = row.R_CONSTRAINT_NAME
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const searchCondition = row.SEARCH_CONDITION
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let table = oracleTables[tableName]
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if (!table) {
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table = {
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name: tableName,
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columns: {},
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}
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oracleTables[tableName] = table
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}
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let column = table.columns[columnName]
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if (!column) {
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column = {
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name: columnName,
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type: dataType,
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default: dataDefault,
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id: columnId,
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constraints: {},
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}
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table.columns[columnName] = column
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}
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if (constraintName && constraintType) {
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let constraint = column.constraints[constraintName]
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if (!constraint) {
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constraint = {
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name: constraintName,
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type: constraintType,
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relatedConstraintName: relatedConstraintName,
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searchCondition: searchCondition,
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}
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}
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column.constraints[constraintName] = constraint
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}
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})
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}
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return oracleTables
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}
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private isSupportedColumn(column: OracleColumn) {
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if (UNSUPPORTED_TYPES.includes(column.type)) {
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return false
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}
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return true
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}
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private isAutoColumn(column: OracleColumn) {
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if (column.default && column.default.toLowerCase().includes("nextval")) {
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return true
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}
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return false
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}
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/**
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* No native boolean in oracle. Best we can do is to check if a manual 1 or 0 number constraint has been set up
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* This matches the default behaviour for generating DDL used in knex.
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*/
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private isBooleanType(column: OracleColumn): boolean {
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if (
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column.type.toLowerCase() === "number" &&
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Object.values(column.constraints).filter(c => {
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if (
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c.type === OracleContraintTypes.NOT_NULL_OR_CHECK &&
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c.searchCondition
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) {
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const condition = c.searchCondition
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.replace(/\s/g, "") // remove spaces
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.replace(/[']+/g, "") // remove quotes
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if (
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condition.includes("in(0,1)") ||
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condition.includes("in(1,0)")
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) {
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return true
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}
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}
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return false
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}).length > 0
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) {
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return true
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}
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return false
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}
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private internalConvertType(column: OracleColumn): string {
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if (this.isBooleanType(column)) {
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return FieldTypes.BOOLEAN
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}
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return convertType(column.type, TYPE_MAP)
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}
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/**
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* Fetches the tables from the oracle table and assigns them to the datasource.
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* @param {*} datasourceId - datasourceId to fetch
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* @param entities - the tables that are to be built
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*/
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async buildSchema(datasourceId: string, entities: Record<string, Table>) {
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const columnsResponse = await this.internalQuery<ColumnsResponse>({
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sql: this.COLUMNS_SQL,
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})
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const oracleTables = this.mapColumns(columnsResponse)
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const tables: { [key: string]: Table } = {}
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// iterate each table
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Object.values(oracleTables).forEach(oracleTable => {
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let table = tables[oracleTable.name]
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if (!table) {
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table = {
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_id: buildExternalTableId(datasourceId, oracleTable.name),
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primary: [],
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name: oracleTable.name,
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schema: {},
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}
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tables[oracleTable.name] = table
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}
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// iterate each column on the table
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Object.values(oracleTable.columns)
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// remove columns that we can't read / save
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.filter(oracleColumn => this.isSupportedColumn(oracleColumn))
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// match the order of the columns in the db
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.sort((c1, c2) => c1.id - c2.id)
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.forEach(oracleColumn => {
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const columnName = oracleColumn.name
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let fieldSchema = table.schema[columnName]
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if (!fieldSchema) {
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fieldSchema = {
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autocolumn: this.isAutoColumn(oracleColumn),
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name: columnName,
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type: this.internalConvertType(oracleColumn),
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}
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table.schema[columnName] = fieldSchema
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}
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// iterate each constraint on the column
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Object.values(oracleColumn.constraints).forEach(
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oracleConstraint => {
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if (oracleConstraint.type === OracleContraintTypes.PRIMARY) {
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table.primary!.push(columnName)
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}
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}
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)
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})
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})
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const final = finaliseExternalTables(tables, entities)
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this.tables = final.tables
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this.schemaErrors = final.errors
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}
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private async internalQuery<T>(query: SqlQuery): Promise<Result<T>> {
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let connection
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try {
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connection = await this.getConnection()
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const options : ExecuteOptions = { autoCommit: true }
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const result: Result<any> = await connection.execute(query.sql, [], options)
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const options: ExecuteOptions = { autoCommit: true }
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const bindings: BindParameters = query.bindings || []
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const result: Result<T> = await connection.execute<T>(
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query.sql,
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bindings,
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options
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)
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return result
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} finally {
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if (connection) {
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try {
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await connection.close();
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} catch (err) {
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console.error(err);
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}
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}
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if (connection) {
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try {
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await connection.close()
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} catch (err) {
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console.error(err)
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}
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}
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}
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}
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private getConnection = async (): Promise<Connection> => {
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//connectString : "(DESCRIPTION =(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))(CONNECT_DATA =(SID= ORCL)))"
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const connectString = `${this.config.host}:${this.config.port || 1521}/${this.config.database}`
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const connectString = `${this.config.host}:${this.config.port || 1521}/${
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this.config.database
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}`
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const attributes: ConnectionAttributes = {
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user: this.config.user,
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password: this.config.user,
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connectString,
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}
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return oracledb.getConnection(attributes);
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return oracledb.getConnection(attributes)
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}
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async create(query: SqlQuery | string) {
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const response = await this.query(getSqlQuery(query))
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return response.rows && response.rows.length ? response.rows : [{ created: true }]
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const response = await this.internalQuery(getSqlQuery(query))
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return response.rows && response.rows.length
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? response.rows
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: [{ created: true }]
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}
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async read(query: SqlQuery | string) {
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const response = await this.query(getSqlQuery(query))
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const response = await this.internalQuery(getSqlQuery(query))
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return response.rows
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}
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async update(query: SqlQuery | string) {
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const response = await this.query(getSqlQuery(query))
|
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return response.rows && response.rows.length ? response.rows : [{ updated: true }]
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const response = await this.internalQuery(getSqlQuery(query))
|
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return response.rows && response.rows.length
|
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? response.rows
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: [{ updated: true }]
|
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}
|
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|
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async delete(query: SqlQuery | string) {
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const response = await this.query(getSqlQuery(query))
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return response.rows && response.rows.length ? response.rows : [{ deleted: true }]
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const response = await this.internalQuery(getSqlQuery(query))
|
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return response.rows && response.rows.length
|
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? response.rows
|
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: [{ deleted: true }]
|
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}
|
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|
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async query(json: QueryJson) {
|
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const operation = this._operation(json).toLowerCase()
|
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const input = this._query(json, { disableReturning: true })
|
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if (Array.isArray(input)) {
|
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const responses = []
|
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for (let query of input) {
|
||||
responses.push(await this.internalQuery(query))
|
||||
}
|
||||
return responses
|
||||
} else {
|
||||
const response = await this.internalQuery(input)
|
||||
return response.rows && response.rows.length
|
||||
? response.rows
|
||||
: [{ [operation]: true }]
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -0,0 +1,94 @@
|
|||
const oracledb = require("oracledb")
|
||||
const OracleIntegration = require("../oracle")
|
||||
jest.mock("oracledb")
|
||||
|
||||
class TestConfiguration {
|
||||
constructor(config = {}) {
|
||||
this.integration = new OracleIntegration.integration(config)
|
||||
}
|
||||
}
|
||||
|
||||
const options = { autoCommit: true }
|
||||
|
||||
describe("Oracle Integration", () => {
|
||||
let config
|
||||
|
||||
beforeEach(() => {
|
||||
jest.clearAllMocks()
|
||||
config = new TestConfiguration()
|
||||
})
|
||||
|
||||
afterEach(() => {
|
||||
expect(oracledb.closeMock).toHaveBeenCalled()
|
||||
expect(oracledb.closeMock).toHaveBeenCalledTimes(1)
|
||||
})
|
||||
|
||||
it("calls the create method with the correct params", async () => {
|
||||
const sql = "insert into users (name, age) values ('Joe', 123);"
|
||||
await config.integration.create({
|
||||
sql
|
||||
})
|
||||
expect(oracledb.executeMock).toHaveBeenCalledWith(sql, [], options)
|
||||
expect(oracledb.executeMock).toHaveBeenCalledTimes(1)
|
||||
})
|
||||
|
||||
it("calls the read method with the correct params", async () => {
|
||||
const sql = "select * from users;"
|
||||
await config.integration.read({
|
||||
sql
|
||||
})
|
||||
expect(oracledb.executeMock).toHaveBeenCalledWith(sql, [], options)
|
||||
expect(oracledb.executeMock).toHaveBeenCalledTimes(1)
|
||||
})
|
||||
|
||||
it("calls the update method with the correct params", async () => {
|
||||
const sql = "update table users set name = 'test';"
|
||||
const response = await config.integration.update({
|
||||
sql
|
||||
})
|
||||
expect(oracledb.executeMock).toHaveBeenCalledWith(sql, [], options)
|
||||
expect(oracledb.executeMock).toHaveBeenCalledTimes(1)
|
||||
})
|
||||
|
||||
it("calls the delete method with the correct params", async () => {
|
||||
const sql = "delete from users where name = 'todelete';"
|
||||
await config.integration.delete({
|
||||
sql
|
||||
})
|
||||
expect(oracledb.executeMock).toHaveBeenCalledWith(sql, [], options)
|
||||
expect(oracledb.executeMock).toHaveBeenCalledTimes(1)
|
||||
})
|
||||
|
||||
describe("no rows returned", () => {
|
||||
beforeEach(() => {
|
||||
oracledb.executeMock.mockImplementation(() => ({ rows: [] }))
|
||||
})
|
||||
|
||||
it("returns the correct response when the create response has no rows", async () => {
|
||||
const sql = "insert into users (name, age) values ('Joe', 123);"
|
||||
const response = await config.integration.create({
|
||||
sql
|
||||
})
|
||||
expect(response).toEqual([{ created: true }])
|
||||
expect(oracledb.executeMock).toHaveBeenCalledTimes(1)
|
||||
})
|
||||
|
||||
it("returns the correct response when the update response has no rows", async () => {
|
||||
const sql = "update table users set name = 'test';"
|
||||
const response = await config.integration.update({
|
||||
sql
|
||||
})
|
||||
expect(response).toEqual([{ updated: true }])
|
||||
expect(oracledb.executeMock).toHaveBeenCalledTimes(1)
|
||||
})
|
||||
|
||||
it("returns the correct response when the delete response has no rows", async () => {
|
||||
const sql = "delete from users where name = 'todelete';"
|
||||
const response = await config.integration.delete({
|
||||
sql
|
||||
})
|
||||
expect(response).toEqual([{ deleted: true }])
|
||||
expect(oracledb.executeMock).toHaveBeenCalledTimes(1)
|
||||
})
|
||||
})
|
||||
})
|
||||
|
|
@ -161,7 +161,7 @@ export function finaliseExternalTables(
|
|||
tables: { [key: string]: any },
|
||||
entities: { [key: string]: any }
|
||||
) {
|
||||
const finalTables: { [key: string]: any } = {}
|
||||
let finalTables: { [key: string]: any } = {}
|
||||
const errors: { [key: string]: string } = {}
|
||||
for (let [name, table] of Object.entries(tables)) {
|
||||
// make sure every table has a key
|
||||
|
|
@ -172,5 +172,9 @@ export function finaliseExternalTables(
|
|||
// make sure all previous props have been added back
|
||||
finalTables[name] = copyExistingPropsOver(name, table, entities)
|
||||
}
|
||||
// sort the tables by name
|
||||
finalTables = Object.entries(finalTables)
|
||||
.sort(([a], [b]) => a.localeCompare(b))
|
||||
.reduce((r, [k, v]) => ({ ...r, [k]: v }), {})
|
||||
return { tables: finalTables, errors }
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue