add node-oracledb support (#990)

* add node-oracledb support

* move file in src directory

* remove unused var

* correct pool release
correct date error

* correct bugs

* add some test

* correct a test error

* correct time zone error in schema tests

* correct time zone error in schema tests

* use inheritance to remove duplicated code

* use inherit in formatter to remove dupplicated code

* remove unused code

* remove unused require

* add blob insert support

* add queryCompiler to dialect prototype

* export queryCompiler

* fix bugs

* Correct tests

* handle returning

* clean code

* clean code

* Fix returning

* Multiple insert with blob

* Add SELECT BLOB support

* Finalise update

* Fix test error

* Fix insert error without returning

* Add transaction and code cleaning

* build

* Fix pool ping error

* Add missing rejecter

* build

* Fix error in delete

* Fix transaction rollback error throwing

* Fix typo in commit

* Fix rollback rejecter

* Remove BLOB tests

* remove lib file

* fixed oracledb linter errors

* Add .completed to transaction acquireConnection()

package.json

@@ -95,7 +95,8 @@
     "pg-query-stream": false,
     "oracle": false,
     "strong-oracle": false,
-    "sqlite3": false
+    "sqlite3": false,
+    "oracledb": false
   },
   "files": [
     "README.md",

src/dialects/oracle/index.js

@@ -130,7 +130,8 @@ assign(Client_Oracle.prototype, {
       return connection.executeAsync(obj.returningSql, rowIds)
     }).then(function(response) {
       obj.response = response;
-      return obj
+      obj.rowsAffected  = response.updateCount;
+      return obj;
     })
 
   },
@@ -158,7 +159,7 @@ assign(Client_Oracle.prototype, {
           // return an array with values if only one returning value was specified
           return flatten(map(response, values));
         }
-        return response.updateCount;
+        return obj.rowsAffected;
       default:
         return response;
     }

src/dialects/oracledb/formatter.js

@@ -0,0 +1,27 @@
+const inherits = require('inherits');
+const Oracle_Formatter = require('../oracle/formatter');
+const BlobHelper = require('./utils').BlobHelper;
+
+import {assign} from 'lodash';
+
+function Oracledb_Formatter(client) {
+  Oracle_Formatter.call(this, client);
+}
+inherits(Oracledb_Formatter, Oracle_Formatter);
+
+assign(Oracledb_Formatter.prototype, {
+
+  // Checks whether a value is a function... if it is, we compile it
+  // otherwise we check whether it's a raw
+  parameter: function parameter(value) {
+    if (typeof value === 'function') {
+      return this.outputQuery(this.compileCallback(value), true);
+    } else if (value instanceof BlobHelper) {
+      return 'EMPTY_BLOB()';
+    }
+    return this.unwrapRaw(value, true) || '?';
+  }
+
+});
+
+module.exports = Oracledb_Formatter;