How create channel to read a BLOB and write file system file - mirth

I am trying to create a image by fetching blob from MySQL DB ...
Here goes the code....
var dbConn = DatabaseConnectionFactory.createDatabaseConnection('com.mysql.jdbc.Driver','jdbc:mysql://localhost:3306/dbname','username','');
var query_code = "Select blob from tblname where id =59"; //
var result = dbConn.executeCachedQuery(query_code);
dbConn.close();
if (result.next())
{
var image=FileUtil.encode(result.getBytes(1));
$gc('image1', image);
}
Could anyone help me out to achieve this...


Did You receive any error with this code if so post it.
Im not sure with Mirth connect tool But as far as I know, Retrieving the BLOB image from the DB directly with any IDE/Tools is always possible but difficult with 2 ways
By encoding to BASE-64 charcter
By specifying the entire location saving it locally.
And try removing the dbconn.close(); do not use it or use it after if() statement. Because it will throw an error like "no statements were executed after dbconn.close();

Related

Flutter / SQFLite adding rows rawInsert

I am working with an existant SQLite database that is copied from assets. Further now everything is alright but when trying to insert some data in the table an error appears:
DatabaseException(no such table: Parametre (code 1 SQLITE_ERROR[1])
and this is my :
Future<bool> insertUser (String user, String depot, String pwd) async {
int result = 0;
Database database = await openDatabase(dbPath);
final db = await database;
try {
result = await db.rawInsert(
'INSERT INTO Parametre (USER, DEPOT) VALUES ("$user", "$depot")');
}catch(e){
print(e);
}
if(result>0){
return true;
}else{
return false;
}
}
what have i missed?

Alright, the problem appeared to be in the dbPath. The dbPath was set to 'assets/myDatabase.db'. First step was to copy the database from the assets to the app.
Second after copying the database i don't have to use the full path to openDatabase. The right way was to use only the database name, means openDatabase('myDatabase.db').

From the looks of it, either you've mispelled the table name Parametre or you don't have a table with that name in your database. You should run a CREATE TABLE statement to create the table somewhere before (or, if you have it in your code, it has not been run or contains some other error).
It may help you knowing that sqflite provides two great arguments to its openDatabase method: onCreate and onUpdate. They allow you to call a custom function when the database is created (a simple way to create all the tables your app needs at the first run) and another different function to update your database by adding tables or altering columns if you just provide a coherent version argument to the same openDatabase function.

How to upload file to mongodb on mongoose using nestJS?

Hello pls do somebody know how to upload file to MongoDB (mongoose) using nestJS ??
I already have the ability to #Post upload file to my nestJS projet and #Get, but know I wanna post to mongodb using mongoose, pls help

I don't recommend to store images on your database but you can do this:
async function saveFile(file: Express.Multer.File){
//Convert the file to base64 string
const fileB64 = file.buffer.toString('base64')
//userModel is a mongoose model
//Store the string
await this.userModel.create({file: fileB64})
}
async function getFile(userId: string){
//Get user from database
const user = await this.userModel.findOne({_id: userId}).lean()
if(!user) throw new NotFoundException('User not found')
const file = user.file
//Convert the string to buffer
return Buffer.from(file, 'base64')
}
First you have to convert that file to a string with base64 encoding then you can save that string on your database with the create method or updating a document.
If you want to get that file just search that info in your database and then convert the string to buffer and return it.
Like I said before, I don't recommend this it is better if you upload the buffer to s3 and save the link on your database.

thanks it is worked, but it is only buffer a can't see the image! please is there any others option to get is as image? please here what i'm getting :
{"type":"Buffer","data":[255,216,255,224,0,16,74,70,73,70,0,1,1,0,0,72,0,72,0,0,255,225,0,120,69,120,105,102,0,0,73,73,42,0,8,0,0,0,4,0,18,1,3,0,1,0,0,0,1,0,0,0,49,1,2,0,7,0,0,0,62,0,0,0,18,2,3,0,2,0,0,0,2,0,2,0,105,135,4,0,1,0,0,0,70,0,0,0,0,0,0,0,71,111,111,103,108,101,0,0,3,0,0,144,7,0,4,0,0,0,48,50,50,48,2,160,4,0,1,0,0,0,208,2,0,0,3,160,4,0,1,0,0,0,0,5,0,0,0,0,0,0,255,192,0,17,8,5,0,2,208,3,1,34,0,2,17,1,3,17,1,255,196,0,31,0,0,1,5,1,1,1,1,1,1,0,0,0,0,0,0,0,0,1,2,3,4,5,6,7,8,9,10,11,255,196,0,181,16,0,2,1,3,3,2,4,3,5,5,4,4,0,0,1,125,1,2,3,0,4,17,5,18,33,49,65,6,19,81,97,7,34,113,20,50,129,145,161,8,35,66,177,193....

Angular service file
postFile(fileToUpload: File): Observable<any> {
const formaData: FormData = new FormData();
formaData.append('fileKey', fileToUpload, fileToUpload.name);
return this.http.post(`${this.backEndURL}/api/prods/upload/two/tree/`, JSON.stringify(formaData));}
but my backend Nestjs trow error:
[ExceptionsHandler] Cannot read property 'buffer' of undefined +80859ms
TypeError: Cannot read property 'buffer' of undefined

Fetching json from Mongo with Meteor

I am trying to fetch a json object from the mongodb using meteor, but I have no clue why I’m unable to do so.
I need it to be a JSON object only.
One of the entries of the collection looks like this:
[Image taken from Meteor Dev Tools]
Link: https://i.stack.imgur.com/BxRmS.png
I’m trying to fetch the value part by passing the name.
Code on front end:
export default withTracker(() => {
let aSub = Meteor.subscribe(‘allEntries’);
return {
aBoundaries: DataCollection.find({}).fetch()
}
})(Component Name);
The Meteor Call Statement on front-end:
dataFromDb = Meteor.call(‘functionToBeCalled’, ‘Sydney’);
Server-side Code:
Meteor.publish(‘allEntries’, function(){
return DataCollection.find();
});
Meteor.methods({
functionToBeCalled(aName){
return DataCollection.find({name: aName});
}
});
Another of my questions is:
Is there any way that we publish only all the names in the beginning and then publish the values on demand?
Thanks for your help in advance!
I have tried this as well, but it did not work:
functionToBeCalled(aName){
var query = {};
query['name'] = aName;
return DataCollection.find(query).fetch();
}

The issue seems to be with query.
Collection.find() returns data with cursor.
To get an array of objects, use Collection.find().fetch(). The jsons are returned as collection of array like [{json1}, {json2}].
If there is a single document, you can access the json using Collection.find().fetch()[0]. Another alternative is to use findOne. Example - Collection.findOne(). This will return a single JSON object.

use Meteor.subscribe('allEntries'), do not assign it to a variable.
Meteor.subscribe is asynchronous, it's best you ensure that your subscriptions are ready before you fetch data.
Log DataCollection.find({}).fetch() to your console
Check this official reference https://docs.meteor.com/api/pubsub.html#Meteor-subscribe.
Your second question isn't that clear.

Just in case anyone comes here to look for the answer ~~~
So... I was able to make it work with this code on the server:
Meteor.methods({
functionToBeCalled(aName){
console.log(aName);
return DataCollection.findOne({name: aName});
}
});
And this on the client:
Meteor.call('functionToBeCalled', nameToBePassed, (error,response) => {
console.log(error, "error");
console.log(response, "response"); //response here
})
Thanks for the help!

Get undefined variable trying to update the path to an uploaded file within MongoDB using angular-file-upload and MEAN.js

If someone could help me I would be eternally grateful. I have been slamming my head against a brick wall for weeks trying to get images to upload the way it is demonstrated out of the box with the MEAN.js users module. In the generated users module the file is uploaded into a directory and the path to that file is stored in a field in the mongodb document. I can get the file to upload to where it needs to go using multer and the fileupload function. However, I cannot save the path to the field within the document. I cannot figure out how to avoid getting an 'undefined' variable. I've tried creating a $window service and passing data to it as a global variable and a bunch of other things and I'm totally stuck.
I have commented the code below to demonstrate what is going awry in my server controller changeShoePicture function.
// This is the boilerplate code from the mean.js "users" module.
// I can not create a $window service or global variable to store the
// shoe data below so that I can update the shoe.shoeImageURL field
// in MongoDB with path to the successfully uploaded file.
exports.changeShoePicture = function (req, res) {
var message = null;
var shoe = req.shoe;
var upload = multer(config.uploads.shoeUpload).single('newProfilePicture');
var profileUploadFileFilter = require(path.resolve('./config/lib/multer')).profileUploadFileFilter;
console.log('i am here', shoe); // shoe is defined here.
// Filtering to upload only images. This works and proceeds to the else condition!
upload.fileFilter = profileUploadFileFilter;
upload(req, res, function (uploadError) {
if(uploadError) {
return res.status(400).send({
message: 'Error occurred while uploading profile picture'
});
} else {
//shoe image file is successfully uploaded to the location on the server,
// However the following fails because the shoe variable is undefined.
shoe.shoeImageURL = config.uploads.shoeUpload.dest + req.file.filename;
}
});

To make sure I've got this right:
The upload function is being called on your parameters passed by your route, req and res. You set the shoe var from req.shoe.
What are the chances that upload() is messing with your req?
Drop a console.log(req) in right after you call upload and report back

Set Mirth destination to send transform data back as a custom ACK

I have a Mirth channel that set up as a web service listener, it receives an ID, build an HL7 query message and send this query and eventually get back an HL7 response.
Channel Name: QueryChanel
Source Connector Type: Web Service Listener
Destination Connector Name: QueryToVista
Destination connector Type:LLP Sender.
This is the typical HL7 response I receive back from my query is as follow:
MSH|~|\&|VAFC RECV|FACILITY|VAFC TRIGGER||20121011141136-0800||ADR~A19|58269|D|2.4|||NE|NE|USA
MSA|AA|1234|
QRD|20121011051137|R|I|500000001|||1^ICN|***500000001***|ICN|NI|
EVN|A1|20121004064809-0800||A1|0^^^^^^^^USVHA\\0363^L^^^NI^TEST FACILITY ID\050\L|20121004064809-0800|050
PID|1|500000001V075322|500000001V075322^^^USVHA\\0363^NI^VA FACILITY ID\050\L~123123123^^^USSSA\\0363^SS^TEST FACILITY ID\050\L~9^^^USVHA\\0363^PI^VA FACILITY ID\050\L||JOHN^DOE^^^^^L|""|19800502|M||""|""^""^""^""^""^^P^""^""~^^""^""^^^N|""|""|""||S|""||123123123|||""|""||||||""||
PD1|||SOFTWARE SERVICE^D^050
ZPD|1||||||||||||||||""
I can get all the above to return if I set my Source's Response From parameter to QueryToVista
However, I want to return only the value 500000001 from the above message. I've tried to play around with the transformer in the QueryChanel destination without success.
Update:
I tried to add a javascriptwriter connector after the QueryToVista connector in the same channel as follow:
var destination = responseMap.get('QueryToVista');
var responseMessage = destination.getMessage();
//Fails with following error: TypeError: Cannot read property "QRD.4" from undefined
var customack = ResponseFactory.getSuccessResponse(responseMessage['QRD']['QRD.4'] ['QRD.4.1'].toString())**
//work but send the whole HL7 message
var customack = ResponseFactory.getSuccessResponse(responseMessage.toString())**
responseMap.put('Barcode', customack);
I can't seem to use the normal transformation to retrieve the element at all.
Thank you.

You're on the right track, but your update illustrates a couple of issues. However, your basic approach of using two destinations is valid, so long as "Synchronize channel" is checked on the Summary tab.
Issue 1
In your example, the HL7 response you are wanting to parse is in pipe delimited HL7 form. In order to access the elements using E4X notation (eg. responseMessage['QRD']['QRD.4']['QRD.4.1']) you must first convert it into an E4X XML object. This can be done in two steps.
Convert the pipe delimited HL7 string into an XML string.
Convert the XML string into an E4X XML object
In a Javascript transformer of the JavaScript Writer (not the Javascript Writer script itself)
var response = responseMap.get("QueryToVista");
var responseStatus = response.getStatus();
// Get's the pipe delimited HL7 string
var responseMessageString = response.getMessage();
if (responseStatus == "SUCCESS")
{
// converts the pipe delimited HL7 string into an XML string
// note: the SerializeFactory object is available for use in transformer
// scripts, but not in the Javascript destination script itself
var responseMessageXMLString = SerializerFactory.getHL7Serializer(false,false,true).toXML(responseMessageString);
// convert the XML string into an E4X XML object
var responseMessageXMLE4X = new XML(responseMessageXMLString);
// grab the value you want
var ack_msg = responseMessageXMLE4X['QRD']['QRD.4']['QRD.4.1'].toString();
channelMap.put('ack_msg', ack_msg)
}
else
{
// responseStatus probably == "FAILURE" but I'm not sure of the full range of possibilities
// take whatever failure action you feel is appropriate
}
Edit**
I don't believe there is an Issue 2. After reviewing your own approach, I played a bit further, and believe I have confirmed that your approach was indeed correct for generating the SOAP reponse. I'm editing this section to reflect simpler code that still works.
In the Javascript Writer script
var barcode = channelMap.get('ack_msg');
var mirthResponse = ResponseFactory.getSuccessResponse(barcode);
responseMap.put('Barcode', mirthResponse);

Thank you very much csj,
I played around and got mine to work and looking at your solution, you pointed out my bottle neck to the issue as well which is the XML part, I did not realize you have to cast it into XML as per the new XML when you already call toXML function :)
Here is my script, though basic I thought I post it up for anyone find it useful down the road.
var destination = responseMap.get('QueryToVista');
var responseMessage = destination.getMessage();
var Xmsg = new XML(SerializerFactory.getHL7Serializer().toXML(responseMessage));
var xml_msg = '<?xml version="1.0" encoding="utf-8" ?>'+
'<XML><Patient Name="'+Xmsg['PID']['PID.5']['PID.5.1']+
'" Barcode="'+Xmsg['QRD']['QRD.8']['QRD.8.1']+'" /></XML>';
var sResp = ResponseFactory.getSuccessResponse(xml_msg)
responseMap.put('Response', sResp);