BookhshelfJS: Attaching One-to-One relationship - javascript

I have two tables, User and Address. My table User has two methods:
shippingAddress: function() {
var Address = require(appRoot + '/config/db').model('Address');
return this.belongsTo(Address, 'shipping_address_id');
},
billingAddress: function() {
var Address = require(appRoot + '/config/db').model('Address');
return this.belongsTo(Address, 'billing_address_id');
}
How can I attach an Address to say my shippingAddress? I tried the following:
new Address(addressQuery)
.fetch()
.then(function (address) {
new User(userQuery)
.fetch()
.then(function (user) {
// Nothing here works
// I tried the following:
user.shippingAddress().attach(address); // Attach is not defined
user.shippingAddress().sync(address); // Nothing happens
user.shippingAddress().set(address); // Nothing happens
user.save();
});
});
The only thing I can do is:
user.attributes.shipping_address_id = address.id;
user.save();
Which is not a very elegant solution. What am I doing wrong?

First, set the list of relations with "withRelated"
new User(userQuery)
.fetch({
withRelated:['shippingAddress']
})
.then(function (user) {
Then you're able to do:
user.related('shippingAddress').set(...).save();
Be sure shippingAddress() isn't a 'static' function within your User model

Related

Saving data for only one user with using Firebase

I'm developing electron app and using Firebase Database. I created database user by user but saving data for everyone. I want to save data also separate for the user ID.
I can create a user under their user IDs but cannot write their data under their user IDs.
app.controller('loginCtrl', function($scope,$location){
$scope.signup = function(){
auth.createUserWithEmailAndPassword($scope.mail,$scope.parola).then(sonuc=>{
console.log(sonuc.user);
return db.collection('users').doc(sonuc.user.uid).set({
inputQ: $scope.inputQ
}).then( ()=> {
console.log('deneme basarili');
}).catch(err => {
console.log(err.message);
})
})
}
$scope.login = function(){
auth.signInWithEmailAndPassword($scope.mail,$scope.parola).then(sonuc=> {
$location.path('/dashboard')
})
}
});
This part successfully creates a user under its user ID.
app.controller('dashboardCtrl', function($scope){
$scope.add = function() {
db.collection('users').doc(user.uid).add({
baslik: $scope.baslik,
icerik: $scope.icerik
}).then( ()=> {
console.log('ekleme basarili');
}).catch(err=>{
console.log(err.message);
})
}
This part cannot create data under its user ID.
The error is user is not defined.
app.controller('dashboardCtrl', function($scope){
$scope.add = function() {
db.collection('users').doc(user.uid).set({
baslik: $scope.baslik,
icerik: $scope.icerik
}).then( ()=> {
console.log('ekleme basarili');
}).catch(err=>{
console.log(err.message);
})
}
Trying using "set" rather than "add", "add" is usually reserved for adding to a collection where it creates the records identifier for you, without you having to provide it.
You should change .add to .set but also make sure to include merge: true to prevent an override to the document (e.x. if there is a current document it will update it and if there is no document it will create one).
app.controller('dashboardCtrl', function($scope){
$scope.add = function() {
db.collection('users').doc(user.uid).set(
{
.
.
.
},
{ merge: true }
).then( ()=> {
}).catch(err=>{
})
}

(Reddit API) How to get a list of subreddits user is subscribed to, using snoowrap?

So I'm using snoowrap to write a Chrome extension that gets a list of subreddits the user is subscribed, and subscribes to them on a different account.
I'm trying to get the list of subreddits currently but can't figure out how to do it. I've tried simply getting the JSON from https://www.reddit.com/subreddits/mine.json, which returns an empty object (persumably because no auth) and I have no idea how to do it via snoowrap. I looked through the documentation and can't find an option for it.
My code:
document.addEventListener('DOMContentLoaded', function() {
var login = document.getElementById('login');
login.addEventListener('click', function() {
const r = new snoowrap({
userAgent: '???',
clientId: '<id>',
clientSecret: '<clientsecret>',
username: '<username-here>',
password: '<password-here>'
});
r.getHot().map(post => post.title).then(console.log);
});
var getSubs = document.getElementById('get-subs');
getSubs.addEventListener('click', function() {
fetch('https://www.reddit.com/subreddits/mine.json')
.then(function(data) {
console.log(JSON.stringify(data));
})
.catch(function(error) {
console.log('error');
});
});
});
Not sure how else to try. Anyone have suggestions? I'd like to use snoowrap for this ideally.
When using snoowrap as API wrapper, after connecting to the api with:
const r = new snoowrap({...});
They provide a function for getting your own subscribed subreddits:
r.getSubscriptions();
This will return a Listing Object, which you can use like an Array.

AngularJS tutorial Thinkster.io chapter 7

UPDATE: The tutorial was updated and the following question really no longer applies
Learning about AngularJS from the site thinkster.io (free ebook). But at the moment i'm stuck at chapter 7 - Creating your own user data using firebase. This is an tutorial about angularjs that works with firebase.
I have wrote all the code according to the site, but i'm getting these console errors when I want to register a user. It will create the user (in firebase -simplelogin), but not the user object (in firebase - data).:
TypeError: undefined is not a function
at Object.User.create (http://localhost:9000/scripts/services/user.js:46:19)
at http://localhost:9000/scripts/controllers/auth.js:32:22
etc.
This is the code (same as the site), the error is in the create() function and talks about the users.$save() function, snippet of User.create():
users.$save(username).then(function () {
setCurrentUser(username);
});
Complete code of user.js:
news.factory("User", function ($firebase, FIREBASE_URL, $rootScope, $log) {
var reference, users, User;
reference = new Firebase(FIREBASE_URL + "users");
users = $firebase(reference);
function setCurrentUser(username) {
$rootScope.currentUser = User.findByUsername(username);
}
$rootScope.$on("$firebaseSimpleLogin:login", function (event, authUser) {
var query = $firebase(reference.startAt(authUser.uid).endAt(authUser.uid));
query.$on("loaded", function () {
setCurrentUser(query.$getIndex()[0]);
});
});
$rootScope.$on("$firebaseSimpleLogin:logout", function () {
delete $rootScope.currentUser;
});
User = {
create: function (authUser, username) {
users[username] = {
md5_hash: authUser.md5_hash,
username: username,
"$priority": authUser.uid
};
$log.debug(users);
users.$save(username).then(function () {
setCurrentUser(username);
});
},
findByUsername: function (username) {
if (username) {
return users.$child(username);
}
},
getCurrent: function () {
return $rootScope.currentUser;
},
signedIn: function () {
return $rootScope.currentUser !== undefined;
}
};
return User;
});
Edit 1:
Registering a user now works, got it working (saving in firebase, simple login and data):
users = $firebase(reference).$asObject();
Notice the users.save() function:
create: function (authUser, username) {
users[username] = {
md5_hash: authUser.md5_hash,
username: username,
$priority: authUser.uid
};
$log.debug(users);
users.$save().then(function () {
setCurrentUser(users);
});
},
findByUsername: function (users) {
if (users) {
return users;
}
},
Edit 2:
Now I get an error at the log in of the user (see below), when I want to log in, I get an error on this this function, query.$on():
TypeError: undefined is not a function
at http://localhost:9000/scripts/services/user.js:26:19
$rootScope.$on("$firebaseSimpleLogin:login", function (event, authUser) {
var query = $firebase(reference.startAt(authUser.uid).endAt(authUser.uid));
query.$on("loaded", function () {
setCurrentUser(query.$getIndex()[0]);
});
});
What is wrong now?
This is an answer on edit 2: I have used firebase(ref), query.$loaded and searched for the right object, that's it. Maybe someone have an different answer, please post them :).
I have finally completed chapter 07!
In general (solution for Edit 2):
$rootScope.$on("$firebaseSimpleLogin:login", function (event, authUser) {
var query = $firebase(reference).$asObject();
query.$loaded(function (result) {
angular.forEach(result, function (key) {
if (key.md5_hash === authUser.md5_hash) {
setCurrentUser(key);
}
});
});
});
This is not the ideal solution, but the free ebook (atm of writing) is far from ideal. Then again, these kind of situations helps you to understand a little bit more about the firebase api and how it works with angular. But can be frustrated at times, when you just want to go through the tutorial ;).
Note! I have saved the User object and pass the User object to the findUsername() and setCurrentUser() functions instead of just the user.username.
You can also use the native array function, like some().
I think your system uses the newer version of Angularfire (version>= 0.8). Which means for running through loops that are arrays ...you need to attach .$asArray() at the end of the user definition field. Check the updates of Firebase.

Sails.js Set model value with value from Callback

i need to provide something like an association in my Model. So I have a Model called Posts with an userid and want to get the username from this username and display it.
So my ForumPosts.js Model looks like the following:
module.exports = {
schema: true,
attributes: {
content: {
type: 'text',
required: true
},
forumTopicId: {
type: 'text',
required: true
},
userId: {
type: 'integer',
required: true
},
getUsername: function(){
User.findOne(this.userId, function foundUser(err, user) {
var username = user.username;
});
console.log(username);
return username;
}
}
};
I know that this return will not work because it is asynchronus... But how can i display it in my view? At the Moment i retrive the value with:
<%= forumPost.getUsername() %>
And for sure get an undefined return...
So the question is: How can I return this value - or is there a better solution than an instanced Model?
Thanks in advance!
Off the top of my head, you can just load associated user asynchronously before rendering:
loadUser: function(done){
var that = this;
User.findOne(this.userId, function foundUser(err, user) {
if ((err)||(!user))
return done(err);
that.user = user;
done(null);
});
}
then in your controller action:
module.exports = {
index: function(req, res) {
// Something yours…
forumPost.loadUser(function(err) {
if (err)
return res.send(err, 500);
return res.view({forumPost: forumPost});
});
}
}
and in your view:
<%= forumPost.user.username %>
This is kind of a quick and dirty way. For a more solid and long-term solution (which is still in development so far) you can check out the alpha of Sails v0.10.0 with the Associations API.
So this particularly case of associations between your models. So here you have a User model and ForumPost model and you need the user object in place of your user_id as user_id works as a relationship mapping field to your User model.
So if your are using sails V0.9.8 or below you need to handle this logic in your controller where ever you want to access User model attributes in your view.
In your controller write your logic as:
model.export = {
//your getForumPosts method
getForumPosts : function(req,res){
var filters = {};
forumPost.find(filters).done(function(err,posts){
if(err) return res.send(500,err);
// Considering only one post obj
posts = posts[0];
postByUser(posts.user_id,function(obj){
if(obj.status)
{
posts.user = obj.msg;
delete posts.user_id;
res.view({post:posts});
}
else
{
res.send(500,obj.msg);
}
});
}
}
}
function postByUser(user_id,cb){
User.findOne(user_id).done(function(err,user){
if(err) return cb({status:false, msg:err});
if(user){
cb({status:true, msg:user});
}
}
}
and then you can access your post object in your view.
Or else you can keep watch (at GitHub) on next version of sails as they have announced associations in V0.10 n it is in beta testing phase as if now.

AngularJS redirection after ng-click

I have a REST API that read/save data from a MongoDB database.
The application I use retrieves a form and create an object (a job) from it, then save it to the DB. After the form, I have a button which click event triggers the saving function of my controller, then redirects to another url.
Once I click on the button, I am said that the job has well been added to the DB but the application is jammed and the redirection is never called. However, if I reload my application, I can see that the new "job" has well been added to the DB. What's wrong with this ??? Thanks !
Here is my code:
Sample html(jade) code:
button.btn.btn-large.btn-primary(type='submit', ng:click="save()") Create
Controller of the angular module:
function myJobOfferListCtrl($scope, $location, myJobs) {
$scope.save = function() {
var newJob = new myJobs($scope.job);
newJob.$save(function(err) {
if(err)
console.log('Impossible to create new job');
else {
console.log('Ready to redirect');
$location.path('/offers');
}
});
};
}
Configuration of the angular module:
var myApp = angular.module('appProfile', ['ngResource']);
myApp.factory('myJobs',['$resource', function($resource) {
return $resource('/api/allMyPostedJobs',
{},
{
save: {
method: 'POST'
}
});
}]);
The routing in my nodejs application :
app.post('/job', pass.ensureAuthenticated, jobOffers_routes.create);
And finally the controller of my REST API:
exports.create = function(req, res) {
var user = req.user;
var job = new Job({ user: user,
title: req.body.title,
description: req.body.description,
salary: req.body.salary,
dueDate: new Date(req.body.dueDate),
category: req.body.category});
job.save(function(err) {
if(err) {
console.log(err);
res.redirect('/home');
}
else {
console.log('New job for user: ' + user.username + " has been posted."); //<--- Message displayed in the log
//res.redirect('/offers'); //<---- triggered but never render
res.send(JSON.stringify(job));
}
});
};
I finally found the solution ! The issue was somewhere 18inches behind the screen....
I modified the angular application controller like this :
$scope.save = function() {
var newJob = new myJobs($scope.job);
newJob.$save(function(job) {
if(!job) {
$log.log('Impossible to create new job');
}
else {
$window.location.href = '/offers';
}
});
};
The trick is that my REST api returned the created job as a json object, and I was dealing with it like it were an error ! So, each time I created a job object, I was returned a json object, and as it was non null, the log message was triggered and I was never redirected.
Furthermore, I now use the $window.location.href property to fully reload the page.

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