(Warning: newbie) Going around the block on this one, as each example I see does it differently (and none work for me)
var InitiativesNewRoute = Ember.Route.extend({
model: function(params) {
return this.store.createRecord('initiative', params);
},
actions: {
submit: function() {
var initiative = this.get('model');
initiative.save().then(function(model) {
this.transitionTo('initiatives.show', initiative);
});
}
}
});
Saving barfs as initiative is undefined, but I see a record created in the ember chrome plugin. So it looks like creating the record in model works, but fetching it in the action doesn't.
Also tried this example:
submit: function(initiative) {
initiative.save().then(function(model) {
this.transitionTo('initiatives.show', initiative);
});
}
Without passing passing params to createRecord above, and I get the same error. How do I do this?
Using ember-cli 0.0.39 and easy-form, with the fixture adapter.
Got some help on #emberjs and managed to get it working like this:
var InitiativesNewRoute = Ember.Route.extend({
model: function(params) {
return this.store.createRecord('initiative', params);
},
actions: {
submit: function() {
var _this = this;
var initiative = this.get('controller.model');
initiative.save().then(function(model) {
_this.transitionTo('initiatives.show', model.get('id'));
});
}
}
});
Related
I have properly coded a simple REST api and several backbone models. My parent model is called Topic and child model called Questions.
I'm trying to call a get method on the REST api and display the received Topic object to the user in a presentable manner. I am receiving the json (can be seen in the network tab on Chrome), but it is not getting sent to the view correctly.
Model:
var Topic = Backbone.Model.extend({
urlRoot: ROOT + '/topic',
idAttribute: 'topicId',
initialize: function () {
this.questions = new Questions([], {parent: this});
},
toJSON: function () {
var json = Backbone.Model.prototype.toJSON.call(this);
json.questions = this.questions.toJSON();
return json;
}
});
var Topics = Backbone.Collection.extend({
model: Topic,
url: ROOT + 'topic',
parse: function (response) {
return response.results;
}
})
REST URL:
http://localhost/Project/index.php/rest/resource/topic/
Backbone View: This is where I think the error is...(console log below prints an empty object)
var TopicListView = Backbone.View.extend({
el: '.page',
render: function () {
var that = this;
var topics = new Topics();
topics.fetch({
success: function (topics) {
console.log(topics);
var template = _.template($('#topic-list-template').html(), {topics: topics.models});
that.$el.html(template);
}
})
}
});
Using the above functions:
var topic = new Topic();
topic.fetch();
topicListView = new TopicListView();
var Router = Backbone.Router.extend({
routes: {
"": "home"
}
});
var router = new Router;
// render topic list for 'home'
router.on('route:home', function () {
topicListView.render();
});
Edit: Solution: Overriding the parse function in the collection proved to be the error. I wonder why...
The argument topics in your success handler is shadowing the variable topics.
The argument contains the parsed JSON response, not the Backbone Collection. You don't need that, so you can remove the argument.
The reference to topics will now be to your Collection, so topics.models will have the value you expect.
topics.fetch({
success: function () { // argument removed here so `topics` is no longer shadowed
var template = _.template($('#topic-list-template').html(), { topics: topics.models });
that.$el.html(template);
}
})
This seems to be very simple problem but I can't find any solution for this. I want to refresh the data for unprocessedDailyDataFile from action. I can get the model by modelFor() method. But when I try to use get() and set() method with the model they fails as undefined.
Code for Route
App.AdminRoute = Ember.Route.extend({
model: function(){
return {
companies: this.store.find('company'),
unprocessedDailyDataFiles: this.store.find('unprocessedDailyDataFile')
};
},
actions: {
reloadUnprocessedDailyDataFile: function(){
var model = this.modelFor('admin');
// both properties from the model is accessible here
// model.get() fails
// model.set() fails
}
}
});
For the model to reload, you can use
actions: {
reloadUnprocessedDailyDataFile: function(){
let model = this.get('controller.model'); // for Get and Set
model.get('name');
model.set({ name: 'john'});
}
}
I have a qunit test on a route that uses TWO models and use Ember.RSVP.hash to accomplish this. Things work as expected but as soon as I add a filter to Ember.RSVP.hash it stops retrieving data in qunit. Outside of qunit it still works so I believe it's an issue with filter, Ember.RSVP.hash and qunit.
Here's my test:
module('Ember.js Library', {
setup: function() {
Ember.run(App, App.advanceReadiness);
},
teardown: function() {
App.reset();
}
});
test('foo', function() {
visit('/books');
andThen(function() {
equal(currentRouteName(), 'books.index');
});
});
Here's the working route that does not use filter:
App.BooksRoute = Ember.Route.extend({
model: function() {
var id = 1;
// note this does not filter "books" properly
return Ember.RSVP.hash({
books: this.store.find('books'),
library: this.store.find('library', id)
});
}
});
Here's the version that uses filter and does not work:
App.BooksRoute = Ember.Route.extend({
model: function() {
var id = 1;
// note: filters "books" properly but doesn't work in qunit
return Ember.RSVP.hash({
books: this.store.filter('books', function(record) {
return record.get('libraryId') === id;
}),
library: this.store.find('library', id)
});
}
});
The end result is that in the working version, books is present as expected. In the second version, books ends up being empty. In both versions the library is always present so I believe filter is the problem.
How can I use filter and get things to work with qunit?
store.filter doesn't actually load the records, it will only return records that are already in the store. What you probably want to do is something like...
App.BooksRoute = Ember.Route.extend({
model: function() {
var id = 1;
// note: filters "books" properly but doesn't work in qunit
return Ember.RSVP.hash({
books: this.store.find('books').then(function(books){
return books.filterBy('libraryId', id)
}),
library: this.store.find('library', id)
});
}
});
(disclaimer: the code above is untested but thats the idea)
Edit 11/16/14: Version Information
DEBUG: Ember : 1.7.0 ember-1.7.0.js:14463
DEBUG: Ember Data : 1.0.0-beta.10+canary.30d6bf849b ember-1.7.0.js:14463
DEBUG: Handlebars : 1.1.2 ember-1.7.0.js:14463
DEBUG: jQuery : 1.10.2
I'm beating my head against a wall trying to do something that I think should be fairly straightforward with ember and ember-data, but I haven't had any luck so far.
Essentially, I want to use server data to populate a <select> dropdown menu. When the form is submitted, a model should be created based on the data the user chooses to select. The model is then saved with ember data and forwarded to the server with the following format:
{
"File": {
"fileName":"the_name.txt",
"filePath":"/the/path",
"typeId": 13,
"versionId": 2
}
}
The problem is, the typeId and versionId are left out when the model relationship is defined as async like so:
App.File = DS.Model.extend({
type: DS.belongsTo('type', {async: true}),
version: DS.belongsTo('version', {async: true}),
fileName: DS.attr('string'),
filePath: DS.attr('string')
});
The part that is confusing me, and probably where my mistakes lie, is the controller:
App.FilesNewController = Ember.ObjectController.extend({
needs: ['files'],
uploadError: false,
// These properties will be given by the binding in the view to the
//<select> inputs.
selectedType: null,
selectedVersion: null,
files: Ember.computed.alias('controllers.files'),
actions: {
createFile: function() {
this.createFileHelper();
}
},
createFileHelper: function() {
var selectedType = this.get('selectedType');
var selectedVersion = this.get('selectedVersion');
var file = this.store.createRecord('file', {
fileName: 'the_name.txt',
filePath: '/the/path'
});
var gotDependencies = function(values) {
//////////////////////////////////////
// This only works when async: false
file.set('type', values[0])
.set('version', values[1]);
//////////////////////////////////////
var onSuccess = function() {
this.transitionToRoute('files');
}.bind(this);
var onFail = function() {
this.set('uploadError', true);
}.bind(this);
file.save().then(onSuccess, onFail);
}.bind(this);
Ember.RSVP.all([
selectedType,
selectedVersion
]).then(gotDependencies);
}
});
When async is set to false, ember handles createRecord().save() POST requests correctly.
When async is true, ember handles GET requests perfectly with multiple requests, but does NOT add the belongsTo relationships to the file JSON during createRecord().save(). Only the basic properties are serialized:
{"File":{"fileName":"the_name.txt","filePath":"/the/path"}}
I realize this question has been asked before but I have not found a satisfactory answer thus far and I have not found anything that suits my needs. So, how do I get the belongsTo relationship to serialize properly?
Just to be sure that everything is here, I will add the custom serialization I have so far:
App.ApplicationSerializer = DS.RESTSerializer.extend({
serializeIntoHash: function(data, type, record, options) {
var root = Ember.String.capitalize(type.typeKey);
data[root] = this.serialize(record, options);
},
keyForRelationship: function(key, type){
if (type === 'belongsTo') {
key += "Id";
}
if (type === 'hasMany') {
key += "Ids";
}
return key;
}
});
App.FileSerializer = App.ApplicationSerializer.extend(DS.EmbeddedRecordsMixin, {
attrs: {
type: { serialize: 'id' },
version: { serialize: 'id' }
}
});
And a select:
{{ view Ember.Select
contentBinding="controller.files.versions"
optionValuePath="content"
optionLabelPath="content.versionStr"
valueBinding="controller.selectedVersion"
id="selectVersion"
classNames="form-control"
prompt="-- Select Version --"}}
If necessary I will append the other routes and controllers (FilesRoute, FilesController, VersionsRoute, TypesRoute)
EDIT 11/16/14
I have a working solution (hack?) that I found based on information in two relevant threads:
1) How should async belongsTo relationships be serialized?
2) Does async belongsTo support related model assignment?
Essentially, all I had to do was move the Ember.RSVP.all() to after a get() on the properties:
createFileHelper: function() {
var selectedType = this.get('selectedType');
var selectedVersion = this.get('selectedVersion');
var file = this.store.createRecord('file', {
fileName: 'the_name.txt',
filePath: '/the/path',
type: null,
version: null
});
file.set('type', values[0])
.set('version', values[1]);
Ember.RSVP.all([
file.get('type'),
file.get('version')
]).then(function(values) {
var onSuccess = function() {
this.transitionToRoute('files');
}.bind(this);
var onFail = function() {
alert("failure");
this.set('uploadError', true);
}.bind(this);
file.save().then(onSuccess, onFail);
}.bind(this));
}
So I needed to get() the properties that were belongsTo relationships before I save the model. I don't know is whether this is a bug or not. Maybe someone with more knowledge about emberjs can help shed some light on that.
See the question for more details, but the generic answer that I worked for me when saving a model with a belongsTo relationship (and you specifically need that relationship to be serialized) is to call .get() on the properties and then save() them in then().
It boils down to this:
var file = this.store.createRecord('file', {
fileName: 'the_name.txt',
filePath: '/the/path',
type: null,
version: null
});
// belongsTo set() here
file.set('type', selectedType)
.set('version', selectedVersion);
Ember.RSVP.all([
file.get('type'),
file.get('version')
]).then(function(values) {
var onSuccess = function() {
this.transitionToRoute('files');
}.bind(this);
var onFail = function() {
alert("failure");
this.set('uploadError', true);
}.bind(this);
// Save inside then() after I call get() on promises
file.save().then(onSuccess, onFail);
}.bind(this));
I got the following simple ember.js-setup, which works all great
App.Router.map(function() {
this.resource('tourdates', function() {
this.resource('tourdate', { path: ':tourdate_id' });
});
});
App.TourdatesRoute = Ember.Route.extend({
model: function() {
return $.getJSON('http://someapi.com/?jsoncallback=?').then(function(data) {
return data;
});
}
});
App.TourdateRoute = Ember.Route.extend({
model: function(params) {
return tourdates.findBy('id', params.tourdate_id);
}
});
so, pretty simple, whenever i call index.html#/tourdates, i get the data via api. and when I click on a link in this view and call f.e. index.html#/tourdates/1 it just displays the view for its nested child.
This all breaks, when I directly call index.html#/tourdates/1 with the message
DEPRECATION: Action handlers contained in an `events` object are deprecated in favor of putting them in an `actions` object (error on <Ember.Route:ember174>)
Error while loading route: ReferenceError {}
Uncaught ReferenceError: tourdates is not defined
Although he makes the ajax-call to the api and gets the data, he is not able to initialize the nested model
When your App.TourdatesRoute is loaded, all data from the json, will be rendered. And when you click to edit one of these loaded objects, using a link-to for example, ember is smart enough to get the already referenced object, instead of send a new request. So your url will change to: yourhost.com/tourdate/id.
When you direct call this url, it will call the App.TourdateRoute model method. Because doesn't have any pre loaded data. But in your case you have a:
tourdates.findBy('id', params.tourdate_id);
And I can't see in any place the declaration of tourdates.
I recommed you to change your TourdateRoute to TourdateIndexRoute so when transitioning to tourdates the ajax call is performed once:
App.TourdatesIndexRoute = Ember.Route.extend({
model: function() {
return $.getJSON('http://someapi.com/?jsoncallback=?').then(function(data) {
return data;
});
}
});
The TourdatesRoute is called both for TourdateRoute and TourdatesIndexRoute, because it's the parent route of both. So fetching all data in the TourdatesIndexRoute will ensure this is just called when transitioning to tourdates.
In your TourdateRoute you will load just the record needed. Something like this:
App.TourdateRoute = Ember.Route.extend({
model: function(params) {
// retrieve just one data by id, from your endpoint
return $.getJSON('http://someapi.com/' + params.tourdate_id + '?jsoncallback=?').then(function(data) {
return data;
});
}
});
So a direct call to yourhost.com/tourdate/id will just loaded one record.
About your warning message, it happens because in some route you have:
App.MyRoute = Ember.Route.extend({
events: {
eventA: function() { ...},
eventB: function() { ...},
}
});
The events is deprecated and you need to use actions:
App.MyRoute = Ember.Route.extend({
actions: {
eventA: function() { ...},
eventB: function() { ...},
}
});
I hope it helps