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patients.js
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patients.js
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/*
GET /app/addpatient -> go to addPatient page
POST /app/addpatient -> add a patient in the database
GET /app/getpatients -> get a JSON with all patients
GET /app/patient/:hospitalNumber -> get one patiente data
GET /app/getpatient/:hospitalNumber-> get JSON of a patiente data
POST /app/updatepatient/:hospitalNumber -> update disease & score for patient
POST /app/delete/:hospitalNumber -> detele a patient from the system
*/
const express = require('express');
const _ = require('lodash');
const router = express.Router();
var {scoreOfDisease, Disease} = require('./../server/models/diseases.js');
var {Patient} = require('./../server/models/patient.js');
var {rooms, Room} = require('./../server/models/rooms.js');
var isValidDate = require('is-valid-date');
const {ObjectID} = require('mongodb');
/*
GET /app/addpatient -> go to addPatient page
*/
router.get('/app/addpatient', (req, res) => {
res.render('addpatient', {pageTitle: "Add patient"});
});
/*
POST /addPatient -> add new patient
*/
router.post('/app/addpatient', (req, res) => {
// receive the diseases from the form in the array PD, each element being a String with the disease name
var PD = req.body.PD;
var dateOfBirth = req.body.dateOfBirth;
// console.log(dateOfBirth);
// console.log(isValidDate(dateOfBirth));
if (_.isEmpty(PD)) { // check if no disease is selected
PD = [];
}
// Check for empty fields
if (_.isEmpty(req.body.firstName) || _.isEmpty(req.body.lastName) || _.isEmpty(req.body.hospitalNumber) || !isValidDate(dateOfBirth)) {
if (_.isEmpty(req.body.firstName)) req.flash('error_msg', 'Please enter the first name.');
if (_.isEmpty(req.body.lastName)) req.flash('error_msg', 'Please enter the last name.');
if (_.isEmpty(req.body.hospitalNumber)) req.flash('error_msg', 'Please enter the hospital number.');
if (!isValidDate(dateOfBirth)) req.flash('error_msg', 'The date is not valid.');
res.status(400).redirect('/app/addpatient');
} else {
// set the sex of the new patient
var sex = req.body.sex;
if (sex === "male") {
sex = true;
} else {
sex = false;
}
// make a new patient and add it in the database
var patient = Patient({
firstName: _.capitalize(req.body.firstName),
lastName: _.capitalize(req.body.lastName),
sex: sex,
dateOfBirth: dateOfBirth,
hospitalNumber: _.toUpper(req.body.hospitalNumber),
diseases: PD,
lastUpdate: (new Date().getTime())
});
patient.save().then((patient) => {
patient.updateScore();
res.status(200).redirect('/app');
}).catch((err) => {
console.log(err);
res.status(400).redirect('/app');
});
}
});
/*
GET /app/getpatients -> get a JSON with all patients
*/
router.get('/app/getpatients', (req, res) => {
Patient.find({}).then((patients) => {
res.status(200).send(patients);
}).catch((err) => {
console.log(err);
res.status(400).send();
});
});
/*
GET one patient data -> for his personal page
*/
router.get('/app/patient/:hospitalNumber', (req, res) => {
hospitalNumber = req.params.hospitalNumber;
Patient.findOne({
hospitalNumber
}).then((patient) => {
if (_.isEmpty(patient)) {
throw Error('Patient does not exist');
}
res.status(200).render('patientPage');
}).catch((err) => {
console.log(err);
res.status(404).redirect('/app');
});
});
/*
GET one patient data and return it as JSON
*/
router.get('/app/getpatient/:hospitalNumber', (req, res) => {
hospitalNumber = req.params.hospitalNumber;
Patient.findOne({
hospitalNumber
}).then((patient) => {
res.status(200).send(patient);
}).catch((err) => {
req.flash('error_msg', 'Please enter the first name.');
res.status(404).redirect('/app');
});
});
/*
POST /app/updatepatient/:hospitalNumber -> update disease & score for patient
-> request made from the patientPage
*/
router.post('/app/updatepatient/:hospitalNumber', (req, res) => {
hospitalNumber = req.params.hospitalNumber;
// GET form attributes
var PD = req.body.PD;
if (_.isEmpty(PD)) {
PD = [];
}
Patient.findOneAndUpdate({
hospitalNumber
}, {
"$set": {
"diseases": PD,
"lastUpdate": (new Date().getTime())
}
},{
new: true
}).then((patient) => {
patient.updateScore();
res.redirect('/app/patient/' + hospitalNumber);
}).catch((err) => {
console.log(err);
res.redirect('/app/patient/' + hospitalNumber);
});
});
/*
POST /app/delete/:hospitalNumber -> detele a patient from the system
*/
router.get('/app/deletepatient/:hospitalNumber', (req, res) => {
var hospitalNumber = req.params.hospitalNumber;
Promise.all([Room.find({}), Patient.findOne({hospitalNumber: hospitalNumber})])
.then((data) => {
var rooms = data[0];
var patient = data[1];
// if the patient is in a room, make the room empty
if (patient.room !== 'noroom') {
for (var i = 0; i < rooms.length; ++i) {
if (rooms[i].name === patient.room) {
rooms[i].availability = false;
rooms[i].save();
break;
}
}
}
patient.remove().then((patients) => {
res.status(200).redirect('/app');
});
}).catch((err) => {
res.status(400).redirect('/app');
});
});
module.exports = router;