oracle thick mode support #843

2026-04-18 09:05:59 +00:00 · 2024-07-31 11:20:31 +02:00
parent faf6339b41
commit 5e68ce3218
11 changed files with 75 additions and 39 deletions
--- a/plugins/dbgate-plugin-oracle/src/frontend/driver.js
+++ b/plugins/dbgate-plugin-oracle/src/frontend/driver.js
@@ -0,0 +1,156 @@
+const { driverBase } = global.DBGATE_TOOLS;
+const Dumper = require('./Dumper');
+const { oracleSplitterOptions } = require('dbgate-query-splitter/lib/options');
+
+const spatialTypes = ['GEOGRAPHY'];
+
+/** @type {import('dbgate-types').SqlDialect} */
+const dialect = {
+  rangeSelect: true,
+  limitSelect: false,
+  offsetFetchRangeSyntax: true,
+  ilike: true,
+  // stringEscapeChar: '\\',
+  stringEscapeChar: "'",
+  fallbackDataType: 'varchar',
+  anonymousPrimaryKey: true,
+  enableConstraintsPerTable: true,
+  dropColumnDependencies: ['dependencies'],
+  quoteIdentifier(s) {
+    return '"' + s + '"';
+  },
+
+  createColumn: true,
+  dropColumn: true,
+  changeColumn: true,
+  createIndex: true,
+  dropIndex: true,
+  createForeignKey: true,
+  dropForeignKey: true,
+  createPrimaryKey: true,
+  dropPrimaryKey: true,
+  createUnique: true,
+  dropUnique: true,
+  createCheck: true,
+  dropCheck: true,
+
+  dropReferencesWhenDropTable: true,
+  requireFromDual: true,
+
+  predefinedDataTypes: [
+    'VARCHAR2',
+    'NUMBER',
+    'DATE',
+    'CLOB',
+    'BLOB',
+    'INTEGER',
+
+    'BFILE',
+    'BINARY_DOUBLE',
+    'BINARY_FLOAT',
+    'CHAR',
+    'FLOAT',
+    'INTERVAL DAY',
+    'INTERVAL YEAR',
+    'LONG',
+    'LONG RAW',
+    'NCHAR',
+    'NCLOB',
+    'NVARCHAR2',
+    'RAW',
+    'ROWID',
+    'TIMESTAMP',
+    'UROWID',
+    // 'XMLTYPE',
+  ],
+
+  createColumnViewExpression(columnName, dataType, source, alias) {
+    if (dataType && spatialTypes.includes(dataType.toUpperCase())) {
+      return {
+        exprType: 'call',
+        func: 'ST_AsText',
+        alias: alias || columnName,
+        args: [
+          {
+            exprType: 'column',
+            columnName,
+            source,
+          },
+        ],
+      };
+    }
+  },
+};
+
+/** @type {import('dbgate-types').EngineDriver} */
+const oracleDriver = {
+  engine: 'oracle@dbgate-plugin-oracle',
+  title: 'OracleDB',
+  defaultPort: 1521,
+  authTypeLabel: 'Driver mode',
+  defaultAuthTypeName: 'thin',
+  dialect,
+  dumperClass: Dumper,
+  // showConnectionField: (field, values) =>
+  //   ['server', 'port', 'user', 'password', 'defaultDatabase', 'singleDatabase'].includes(field),
+  getQuerySplitterOptions: () => oracleSplitterOptions,
+  readOnlySessions: true,
+
+  databaseUrlPlaceholder: 'e.g. localhost:1521/orcl',
+
+  
+  showConnectionField: (field, values) => {
+    if (field == 'useDatabaseUrl') return true;
+    if (field == 'authType') return true;
+    if (field == 'clientLibraryPath') return values.authType == 'thick';
+
+    if (values.useDatabaseUrl) {
+      return ['databaseUrl', 'user', 'password'].includes(field);
+    }
+
+    return ['user', 'password', 'server', 'port', 'serviceName'].includes(field);
+  },
+
+  getNewObjectTemplates() {
+    return [
+      { label: 'New view', sql: 'CREATE VIEW myview\nAS\nSELECT * FROM table1' },
+      { label: 'New materialized view', sql: 'CREATE MATERIALIZED VIEW myview\nAS\nSELECT * FROM table1' },
+      {
+        label: 'New procedure',
+        sql: `CREATE PROCEDURE myproc (arg1 INT)
+LANGUAGE SQL
+AS $$
+  SELECT * FROM table1;
+$$`,
+      },
+      {
+        label: 'New function (plpgsql)',
+        sql: `CREATE FUNCTION myfunc (arg1 INT)
+RETURNS INT
+AS $$
+BEGIN
+  RETURN 1;
+END
+$$ LANGUAGE plpgsql;`,
+      },
+    ];
+  },
+
+  dialectByVersion(version) {
+    if (version) {
+      return {
+        ...dialect,
+        materializedViews:
+          version &&
+          version.versionMajor != null &&
+          version.versionMinor != null &&
+          (version.versionMajor > 9 || version.versionMajor == 9 || version.versionMinor >= 3),
+      };
+    }
+    return dialect;
+  },
+
+  showConnectionTab: field => field == 'sshTunnel',
+};
+
+module.exports = oracleDriver;