WillieYang

// server side setting about shadowsocks
{
"server":"0.0.0.0",
"server_port":8838,
"local_address":"127.0.0.1",
"local_port":1080,
"password":"ys123456",
"timeout":600,
"method":"aes-256-cfb"
}

WillieYang

// Change the bug when the list loation is not in the databse, 
// the post data of lat and lng are undefined, actually, we need
// to convert the data structure from the array to a javascript object 
//(lag: and lng: in coords rather than coords[0] and coords[1]

body_post.coords = {
						lng: body_post.coords[0],
						lat: body_post.coords[1]
					};

WillieYang

// command line below to enable this requirements

gsettings set org.gnome.desktop.peripherals.touchpad send-events disabled-on-external-mouse

// get current situation

gsettings get org.gnome.desktop.peripherals.touchpad send-events

// options

WillieYang

// need to require the reports.js(schema file in model) in db connect file

[nodemon] restarting due to changes...
[nodemon] starting `node ./bin/www`
(node:26035) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 exit listeners added. Use emitter.setMaxListeners() to increase limit

/home/sheng/Work/smr_pjt_loct_dr/node_modules/mongoose/lib/index.js:382
      throw new mongoose.Error.MissingSchemaError(name);
      ^
MongooseError: Schema hasn't been registered for model "Report".

WillieYang

// example when using _id as a query condition
// need to utilize the $element and $ (Positional projection)

> db.users.find({"_id": ObjectId("5974c986dea685349a68242a"), 'userLocation': {"$elemMatch": {'locationName': "Uni Kebab"}}}, {"userLocation.$": 1}).pretty();
{
	"_id" : ObjectId("5974c986dea685349a68242a"),
	"userLocation" : [
		{
			"locationName" : "Uni Kebab",
			"locationAddress" : "190 Burgess Road, Southampton",

WillieYang

2017-07-23T23:24:22.178525+00:00 app[web.1]: module.js:472
2017-07-23T23:24:22.178541+00:00 app[web.1]:     throw err;
2017-07-23T23:24:22.178542+00:00 app[web.1]: 
2017-07-23T23:24:22.178544+00:00 app[web.1]:     at Function.Module._resolveFilename (module.js:470:15)
2017-07-23T23:24:22.178545+00:00 app[web.1]:     at Function.Module._load (module.js:418:25)
2017-07-23T23:24:22.178545+00:00 app[web.1]:     at Module.require (module.js:498:17)
2017-07-23T23:24:22.178542+00:00 app[web.1]:     ^
2017-07-23T23:24:22.178546+00:00 app[web.1]:     at require (internal/module.js:20:19)
2017-07-23T23:24:22.178543+00:00 app[web.1]: Error: Cannot find module 'passport'
2017-07-23T23:24:22.178547+00:00 app[web.1]:     at Module._compile (module.js:571:32)

WillieYang

/ 
means the root of the current drive;

./ 
means the current directory;

../ 
means the parent of the current directory.

WillieYang

// Require the Mongoose
var mongoose = require('mongoose');

// Schema for user
var UserSchema = new mongoose.Schema({
	username: {type: String, required: true},
	email: {type: String, unique: true, required: true},
	password: {type: String, required: true},
});

WillieYang

// OS: ubuntu 16.04 LTS
// Every time in the evening after 9 pm, the HTML5 GeoLocation API in Chromium and Firefox would not work.
// Is is a bug or something?

WillieYang

Check the type of location:string
get the query location:15
location type: "[object Object]"
name:undefined
location id:ChIJ2WK8mvNzdEgRyilaQFDCp1M
// HTTP has no notation of types, everything is a string, as for req.query, it cannot pass the JavaScript Object, only string
// even as for integers.