I am saving an image via monngoose but I cannot find it in mongodb?
My Code
var express = require('express');
var fs = require('fs');
var app=express();
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var imgPath = '\Adpic.jpg';
mongoose.connect('mongodb://localhost:/27017/test');
var schema = new Schema({
img: { data: Buffer, contentType: String }
});
img: { data: Buffer, contentType: String }
});
var An = mongoose.model('An', schema);
app.post('/upload',function(req,res){
var asin = new An();
asin.img.data = fs.readFileSync(imgPath);
asin.img.contentType = 'image/jpg';
asin.save(function (err, a) {
if (err) throw err;
console.error('saved img to mongo');
res.json(a);
});
});
app.listen(3000);
Related
ihave been using mongoose to create models and exporting schema, now i have toupload file in mongo db, Please check the code below.
errmsg: 'cannot do raw queries on admin in atlas',
const util = require("util");
const multer = require("multer");
//const { GridFsStorage } = require("multer-gridfs-storage");
const dbConfig = require("../config/db.config");
const GridFsStorage = require('multer-gridfs-storage');
var storage = new GridFsStorage({
url: dbConfig.url + dbConfig.database,
options: { useNewUrlParser: true, useUnifiedTopology: true },
file: (req, file) => {
const match = ["image/png", "image/jpeg" ,"application/pdf","text/plain"];
if (match.indexOf(file.mimetype) === -1) {
const filename = `${file.originalname}`;
return filename;
}
return {
bucketName: dbConfig.imgBucket,
filename: `${file.originalname}`
// filename: `${Date.now()}-srikanth-${file.originalname}`
};
}
});
var uploadFiles = multer({ storage: storage }).array("file", 10);
// var uploadFiles = multer({ storage: storage }).single("file");
var uploadFilesMiddleware = util.promisify(uploadFiles);
module.exports = uploadFilesMiddleware;
db.config
module.exports = {
url: "mongodb+srv://username:password#cluster0.fatnc.mongodb.net/",
database: "students",
imgBucket: "photos",
};
I am trying to upload a file using the FileUploader module in SAPUI5. The code I am trying to follow is from a blog https://blogs.sap.com/2016/11/08/step-by-step-on-how-to-use-the-sapui5-file-upload-feature/ however the code does not seem to execute the reader.onload function? It gets to reader.readAsDataURL(file) and dose not do anything? I am not sure where the problem lies and how to get it to work? Hekp will be much appreciated, there is a similar issue in the blog response but no help has been given.
XML
<u:FileUploader
id="VRCFileUploader"
value="{VRCFileUpload}"
placeholder="Please Attach document"
fileType="jpg,png,pdf"
style="Emphasized"
useMultipart="false" >
</u:FileUploader>
JS
function upload(evnt) {
var token;
var oView = this.getView();
var oFileUploader = this.byId("VRCFileUploader");
var sFileName = oFileUploader.getValue();
if (sFileName === "") {
sap.m.MessageToast.show("Please select a File to Upload");
return;
}
var file = jQuery.sap.domById(oFileUploader.getId() + "-fu").files[0];
var base64_marker = "data:" + file.type + ";base64,";
var reader = new FileReader();
//on load
reader.onLoad = (function(theFile){
return function(evt) {
//locate base64 content
var base64Index = evt.target.result.indexOf(base64_marker) + base64_marker.lenght;
// get base64 content
var base64 = evt.target.result.substring(base64Index);
var sTasksService = "SOME URL";
var sService2 = "SOME URL";
var oViewModel = oView.getModel();
var oContext = oView.getBindingContext();
var oTask = oViewModel.getProperty(oContext.getPath());
var oDataModel = sap.ui.getCore.getModel();
var sWorkitemId = JSON.stringify(oTask.wiId);
var service_url = sService2;
$.ajaxsetup({
cache: false
});
jQuery.ajax({
url: service_url,
asyn: false,
datatype: "json",
cache: false,
data: base64,
type: "post",
beforeSend: function(xhr) {
xhr.setRequestHeader("x-csrf-Token", token);
xhr.setRequestHeader("content-Type", file.type);
xhr.setRequestHeader("slug", sFileName);
xhr.setRequestHeader("WorkitemId", oTask.WiId);
},
success: function(odata) {
sap.m.MessageToast.show("file successfully uploaded");
oFileUploader.setValue("");
},
error: function(odata) {
sap.m.MessageToast.show("file Upload error");
}
});
};
})(file);
//Read file
reader.readAsDataURL(file);
}
In reply to Vortex:
Why is there an IIFE on the method being used on the onLoad Property?
Try to do somenthing like this:
reader.onload = event => {
let fileAsDataUrl = event.target.result;
....
};
While sending a post request i written the following code :
var email = req.body.email ;
var newDetails = { email: email };
Details.create(newDetails);
console.log(newDetails);
while sending the request. The console.log shows me the correct details,
However in the mongo shell the only collection that exist is "details" and it's empty .
That's the Mongoose Schema:
var mongoose = require("mongoose");
var DetailsSchema = mongoose.Schema({
email: String
});
module.exports = mongoose.model("Details", DetailsSchema);
I'm using NodeJS.
Thanks in advance.
Your Mongoose Model should be like
const mongoose = require("mongoose");
const Scheme = mongoose.Schema;
const DetailsSchema = new Scheme({
email: String
});
module.exports = mongoose.model("Details", DetailsSchema);
Node js Code should be like
var detailsModel = require('../model/Details.js');//path of mongoose model
var detailsData = new detailsModel();
detailsData.email = req.body.email;
detailsData.save(function (err, savedJob) {
if (err) {
return res.send(err);
} else {
return res.send(savedJob);
}
});
To save data in mongoDB's Database
You can use this way
var detailsData = new detailsModel();
detailsData.save()
.then(business => {
res.status(200).json({'Details': 'newDetails added successfully'});
})
.catch(err => {
res.status(400).send("unable to save to database");
});
With this, you can also handle error easily.
I'm using the plugin
mongoose-auto-increment
and it is working fine.
In the description we have to use it like this
var mongoose = require('mongoose'),
Schema = mongoose.Schema,
autoIncrement = require('mongoose-auto-increment');
var connection = mongoose.createConnection("mongodb://localhost/myDatabase");
autoIncrement.initialize(connection);
var bookSchema = new Schema({
author: { type: Schema.Types.ObjectId, ref: 'Author' },
title: String,
genre: String,
publishDate: Date
});
bookSchema.plugin(autoIncrement.plugin, 'Book');
var Book = connection.model('Book', bookSchema);
I have multiple models where i need to auto increment fields
Do i have to initialize in each model the below line
var connection = mongoose.createConnection("mongodb://localhost/myDatabase");
in each model file (where i need increment function)?
I share the solution i implemented myself
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var autoIncrement = require('mongoose-auto-increment');
var connection = mongoose.createConnection("mongodb://localhost/mydatabase");
autoIncrement.initialize(mongoose.connection);
exports.mongoose = mongoose;
exports.Schema = Schema;
exports.autoIncrement = autoIncrement;
and for the schema file
var mong = require('./db');
var Schema = mong.mongoose.Schema;
var autoIncrement = mong.autoIncrement;
var bookSchema = new Schema({
author: { type: Schema.Types.ObjectId, ref: 'Author' },
title: String,
genre: String,
publishDate: Date
});
bookSchema.plugin(autoIncrement.plugin, 'Book');
module.exports = mong.mongoose.model('Book', bookSchema);
This is model in models.js
var PatientSchema = new mongoose.Schema({
_id : String,
LastName : String,
MiddleName : String,
PatientIntId : String,
Sex : String,
Address1 : String,
City : String,
State : String,
ZipCode : String,
AccountNumber : String,
Ssn : String
});
var PatientInfoMdl = mongoose.model('PatientInfo',PatientSchema);
exports.PatientInfoMdl = PatientInfoMdl;
and my code for accessing data is :
var dbObj = require('../dataBase');
var config = require('../config');<
var moment = require('moment');
var models = require('../models/models');
var orm = require('orm');
var xml2js = require('xml2js');
var fs = require('fs');
var user = models.user;
var PatientInfoMdl = models.PatientInfoMdl;
exports.DisplayUsers = function (req, res) {
var name = '';
dbObj.connect(config.get('mongo'), function () {
PatientInfoMdl.find()({}, function (err, docs) {
if (err)
res.json(err);
else res.render('index', { Patients : docs });
});
});
}
and I am not getting data and what is my mistake?
My mistake is not following the naming conventions of collections in mongoDB.
Is there a convention to name collection in MongoDB?
For example:
Controller.js
var mongoose = require('mongoose');
var User = mongoose.model('User');
module.exports = {
show: function(req, res) {
User.find({}, function(err, users) {
res.render('main', {users: users});
})
}
}
Models:User.js
// require mongoose
var mongoose = require('mongoose');
// create the UserSchema
var UserSchema = new mongoose.Schema({
name: String
})
// register the schema as a model
var User = mongoose.model('User', UserSchema);
module.exports = {User}
routes.js
// here we load the Quote model that we created on the server.js page
var mongoose = require('mongoose');
var User = mongoose.model('User');
// import users
var users = require('../controllers/users.js');
module.exports = function(app) {
app.get('/', function(req, res) {
res.send("Hello");
})
app.get('/user',function(req,res){
users.show(req,res);
})
}