I have an ember model Category:
export default DS.Model.extend({
name: DS.attr('string'),
img: DS.attr('string'),
url: DS.attr('string'),
cnt: DS.attr('number'),
// parent_id: DS.belongsTo('category', {
// inverse: 'children',
// async: true
// }),
parent_id: DS.attr('string'),
// children: DS.hasMany('category', {
// inverse: 'parent_id',
// async: true
// }),
children: DS.attr(),
isSelected: false,
isExpanded: false,
hasChildren: function() {
return this.get('children').get('length') > 0;
}.property('children').cacheable(),
isLeaf: function() {
return this.get('children').get('length') == 0;
}.property('children').cacheable()
});
In my index route I have:
export default Ember.Route.extend({
model: function() {
var store = this.store;
return Ember.ArrayProxy.create({
categories: store.find('category'),
menuTopCategories: store.find('category', { parent_id: 1 })
});
}
});
I'm using a RESTAdapter so the store.find will send two requests to the server: categories and categories?parent_id=1.
I would like to have only the first request and then filter through the categories. I tried store.all - since I saw it reuses the already fetch data, but I can't manage to apply the filter.
I've rewritten the menuTopCategories and I don't see a new request:
menuTopCategories: store.filter('category', function(category) {
return category.get('parent_id') === "1";
})
My problem right now is to get the root category (first one) without hardcoding the parent_id.
Related
I'm updating a model using the following controller:
payment_controller.js
App.PaymentNewController = Ember.ObjectController.extend({
needs: ['student'],
isNew: true,
actions: {
createPayment: function() {
var date = new Date(this.get('date'));
if (!date) { return false; }
var amount = this.get('amount');
if (!amount) { return false; }
var studentId = this.get('controllers.student.id');
if (this.isNew)
{
var payment = this.store.createRecord('payment', {
date: date,
amount: amount,
});
}
else
{
var payment = this.get('model');
payment.set('date', date);
payment.set('amount', amount);
}
var self = this;
var onSuccess = function(payment) {
self.set('date', '');
self.set('amount', '');
self.transitionToRoute('student', studentId);
};
var onFail = function(payment) {
};
if (this.isNew)
{
this.store.find('student', studentId).then(function(student){
payment.set('student', student);
payment.save().then(onSuccess, onFail);
});
}
else
{
payment.save().then(onSuccess, onFail);
}
},
}
});
The data returned from the server is the following, and it looks in the correct format expected by ember:
{"payment":{"amount":1111,"date":"2014-09-09T00:00:00.000Z","student":"54024bb9cd52254e181325af","_id":"54024bdacd52254e181325b0"}}
The issue is that after saving the data is correctly saved to the database, but in the store is empty (UPDATE: except the id). As soon as I reload the page the data is shown correctly and is the updated version of the model. This made me think to the fact that the error could lie in the response of the PUT request, but it looks fine to me.
I've been trying many different things with no success. I can provide additional code or info if needed.
UPDATE 1
Here are the involved routes:
App.StudentsRoute = Ember.Route.extend({
model: function() {
return this.store.find('student');
}
});
App.StudentRoute = Ember.Route.extend({
model: function(params) {
return this.store.find('student', params.student_id);
}
});
App.StudentEditRoute = Ember.Route.extend({
setupController: function(controller, model) {
this.controllerFor('student.new').setProperties({isNew:false, content:model});
},
renderTemplate: function() {
this.render('student/new');
}
});
App.PaymentNewRoute = Ember.Route.extend({
model: function() {
return this.store.createRecord('payment');
}
});
App.PaymentEditRoute = Ember.Route.extend({
setupController: function(controller, model) {
this.controllerFor('payment.new').setProperties({isNew:false, content:model});
},
renderTemplate: function() {
this.render('payment/new');
}
});
UPDATE 2
Here are the serializer and the adapter:
App.ApplicationAdapter = DS.RESTAdapter.extend({
host: 'http://localhost:3000',
});
App.ApplicationSerializer = DS.RESTSerializer.extend(DS.EmbeddedRecordsMixin, {
primaryKey: '_id',
serializeId: function(id) {
return id.toString();
},
attrs: {
payments: {embedded: 'always'},
lessons: {embedded: 'always'}
}
});
UPDATE 3
Here are the models:
App.Student = DS.Model.extend({
firstName: DS.attr('string'),
lastName: DS.attr('string'),
email: DS.attr('string'),
nationality: DS.attr('string'),
dateOfBirth: DS.attr('date'),
payments: DS.hasMany('payment'),
lessons: DS.hasMany('lesson'),
});
App.Payment = DS.Model.extend({
student: DS.belongsTo('student'),
date: DS.attr('date'),
amount: DS.attr('number'),
});
UPDATE 4
While inspecting the store using the Ember Inspector in Chrome I've noticed that after the update is completed, the only property that contains data in the payment object (in the store) is the id. Both date and amount are empty.
I'm currently working on creating an ember application using ember/ember-data/ember-data-django-rest-adapter with Django backend.
I'm having issue creating record when there's belongsTo and hasMany relationship going on.
I currently have this code:
App.Article = DS.Model.extend({
title: attr(),
description: attr(),
authors: hasMany('author'),
category: belongsTo('page'),
slug: attr(),
content: attr(),
articleContent: Ember.computed.alias("content"),
published: attr(),
publish_from: attr(),
isScheduled: function() {
return moment().isBefore(moment(this.get('publish_from')));
}.property('publish_from'),
articlePublishDate: function() {
return moment(this.get('publish_from')).format('MMMM Do YYYY');
}.property('publish_from'),
articlePublishTime: function() {
return moment(this.get('publish_from')).format('h:mm a');
}.property('publish_from'),
//content_type: belongsTo('content_type', { async: true }),
content_type: attr()
});
App.Page = DS.Model.extend({
title: attr(),
description: attr(),
pageContent: attr(null, {
key: 'content'
}),
templateFile: attr(null, {
key: 'template'
}),
slug: attr(),
tree_path: attr(),
tree_parent: belongsTo('page'),
site: attr()
});
App.Author = DS.Model.extend({
name: attr(),
slug: attr(),
description: attr(),
text: attr(),
email: attr(),
photo: attr(),
user: belongsTo('user'),
});
// create article
App.ArticleCreateController = Ember.ObjectController.extend({
editMode: false,
allAuthors: function() {
return this.store.find('author');
}.property(),
allPages: function() {
return this.store.find('page');
}.property(),
actions: {
save: function(session) {
var self = this;
var article = this.get('model');
var newArticle = this.store.createRecord('article', {
content_type: "19",
content: article.get('articleContent'),
description: article.get('description'),
publish_from: article.get('publish_from'),
published: article.get('published'),
slug: article.get('slug'),
title: article.get('title')
});
this.store.find('page', 3).then(function(page) {
newArticle.set('category', page);
});
newArticle.save();
}
}
});
All I really want to do is POST data like this to apiRoot/articles/ (along with other attributes, but those are working the way they should)
authors: [1,3,5], // hasMany
category: 3 // belongsTo
But when I make a POST request, category returns as null for some reason. All I want to extract from it is just the id itself. Also, I have no clue how to extract the array of authors. I tried posting the data, and it tells me something about it needing to be 'App.Author'.
First, at the current time you need a fork of ember-data because async create is currently broken (as it's a promise and the internal serializer won't wait for it to resolve).
Pull down this branch, do a npm install + grunt test to build the adapter. Also you need to use the forked build of ember-data in that branch'es test lib directory (until ember-data pulls in the fix for this)
https://github.com/toranb/ember-data-django-rest-adapter/tree/asyncBelongsToHasManyWIP
Then inside your controller you can do something like this to "create" the customer and appointment (notice -async belongsTo/hasMany relationship)
App.Customer = DS.Model.extend({
name: DS.attr('string'),
appointments: DS.hasMany('appointment', { async: true})
});
App.Appointment = DS.Model.extend({
details: DS.attr('string'),
customer: DS.belongsTo('customer', { async: true})
});
var customer = {
name: 'foobar'
}
this.store.createRecord('customer', customer).save().then(function(persisted) {
var appointment = {
details: 'test',
customer: persisted
}
return self.store.createRecord('appointment', appointment).save().then(function(apt) {
persisted.get('data').appointments.pushObject(apt);
router.transitionTo('index');
});
});
Is there any possibility to filter the hasMany records from a model record? I want to get the active projects, grouped by the customer.
Customer model
Docket.Customer = DS.Model.extend({
name: DS.attr('string'),
initial: DS.attr('string'),
description: DS.attr('string'),
number: DS.attr('string'),
archived: DS.attr('boolean'),
projects: DS.hasMany('project',{ async: true })
});
Project model
Docket.Project = DS.Model.extend({
name: DS.attr('string'),
description: DS.attr('string'),
number: DS.attr('string'),
archived: DS.attr('boolean'),
customer: DS.belongsTo('customer', { async: true })
});
Project route
Docket.OrganizationProjectsIndexRoute = Docket.AuthenticatedRoute.extend({
setupController: function () {
var customersWithActiveProjects = this.store.filter('customer', function(customer) {
return customer.get('id') && GET_ONLY_ACTIVE_PROJECTS_FROM_CUSTOMER?
});
this.controllerFor('organization.projects').set('filteredProjects', customersWithActiveProjects);
}
});
Update
I tried something like this but It does not work. I think this is a problem caused by asynchronous requests. But does it point in the right direction?
Docket.OrganizationProjectsIndexRoute = Docket.AuthenticatedRoute.extend({
setupController: function () {
// get customers because we group projects by customers
var customers = this.store.filter('customer', function(customer) {
return customer.get('id')
});
var sortedProjects;
// loop through each valid customer and filter the active projects
$.when(
customers.forEach(function(customer){
customer.get('projects').then(function(projects) {
var filteredProjects = projects.filter(function(project){
return !project.get('archived')
});
customer.set('projects',filteredProjects);
});
})
).then(function() {
sortedProjects = Ember.ArrayProxy.createWithMixins(Ember.SortableMixin, {
sortProperties: ["name"],
content: customers
});
});
this.controllerFor('organization.projects').set('filteredProjects', sortedProjects);
}
});
I think the following could work:
controller
Docket.OrganizationProjectsIndexRoute = Docket.AuthenticatedRoute.extend({
setupController: function () {
var projectsController = this.controllerFor('organization.projects');
this.store.find('customer').then(function(customers) {
var promises = customers.map(function(customer) {
return Ember.RSVP.hash({
customer: customer,
projects: customer.get('projects').then(function(projects) {
return projects.filter(function(project) {
return !project.get('archived');
});
});
});
});
Ember.RSVP.all(promises).then(function(filteredProjects) {
projectsController.set('filteredProjects', filteredProjects);
});
});
}
});
template
{{#each filtered in filteredProjects}}
Customer {{filtered.customer}}<br/>
{{#each project in filtered.projects}}
Project {{project.name}}<br/>
{{/each}}
{{/each}}
The trick is use Ember.RSVP.hash to group each customer by active projects.
I'd like to be able to modify/validate data before actually saving.
Model
App.Post = DS.Model.extend({
title: DS.attr('string'),
author: DS.attr('string'),
date: DS.attr('date', { defaultValue: new Date() }),
excerpt: DS.attr('string'),
body: DS.attr('string')
});
Route
App.PostsNewRoute = Ember.Route.extend({
model: function() {
return this.get('store').createRecord('post');
},
actions: {
doneEditing: function() {
debugger;
this.modelFor('postsNew').save();
this.transitionTo('posts.index');
}
}
});
So, the questions, before the .save() I want to, let's say, validate that the title is not empty or so.
Everything I've tried gets undefined, or [Object object] has no .val() method. I don't know how to get to the values of the model. How can I do that?
And the other thing I have in mind. Is that defaultValue working as intended? I want to set Date() to every new created post. Somehow date is not being recorded since it's not showing.
Thanks.
App.PostsNewRoute = Ember.Route.extend({
model: function() {
return this.get('store').createRecord('post');
},
actions: {
doneEditing: function() {
debugger;
var model = this.modelFor('postsNew');
var title = model.get('title');
model.save();
this.transitionTo('posts.index');
}
}
});
When I save a User all current dirty Users are commited. What do I have to change that a save only commits the transaction for that specific User?
app.js
App = Ember.Application.create();
App.Store = DS.Store.extend({
revision: 12,
adapter: 'DS.FixtureAdapter'
})
App.Router.map(function() {
this.resource('users', function() {
this.resource('user', { path: ':user_id' })
})
});
App.UsersRoute = Ember.Route.extend({
model: function() {
return App.User.find();
}
});
App.UserController = Ember.ObjectController.extend({
startEditing: function() {
this.transaction = this.get('store').transaction();
this.transaction.add(this.get('content'));
},
save: function( user ) {
user.transaction.commit();
}
})
App.User = DS.Model.extend({
lastName: DS.attr('string')
})
App.User.FIXTURES = [{
id: 1,
lastName: "Clinton"
}, {
id: 2,
lastName: "Obama"
}]
My guess is that startEditing is never called, otherwise this would probably be ok.
The other option is that you save multiple times the record. Once a record is saved, it is moved back to the store's default transaction. Any subsequential call to save would actually commit the store's transaction.