I'm writing an ember app that has this settings model that I'm using to bypass routing because I want a single url. However, I get this error:
Error: Cannot perform operations on a Metamorph that is not in the DOM.
when I change any of the data in the model. I'm relatively new to ember, but from what I read of what's out there, you should be able to change a model just fine. Here's my html file:
<script type="text/x-handlebars" data-template-name="index">
<div class="navbar navbar-fixed-top">
<div class="navbar-inner">
<div class="container">
<a class="btn btn-navbar" data-toggle="collapse" data-target=".nav-collapse">
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</a>
<a class="brand" href="#"><img src="./img/MySpending.png"></a>
<div class="nav-collapse">
<ul id="navWrapper" class="nav">
{{#if model.isIndex}}
{{partial "indexNav"}}
{{/if}}
{{#if model.isMonthly}}
{{partial "monthlyNav"}}
{{/if}}
{{#if model.isYearly}}
{{partial "yearlyNav"}}
{{/if}}
</ul>
</div>
<div class='navbar_form pull-right'></div>
</div>
</div>
</div>
<div id="bodyWrapper" class="container" style="padding-top:60px;">
{{#if model.isIndex}}
{{partial "indexPage"}}
{{/if}}
{{#if model.isMonthly}}
{{partial "monthlyPage"}}
{{/if}}
{{#if model.isYearly}}
{{partial "yearlyPage"}}
{{/if}}
</div>
{{outlet}}
And each partial works fine initially.
It's when I change it in the three regular functions in my app.js that I have a problem. Here's my app.js:
App = Ember.Application.create();
App.Router.map(function() {
// put your routes here
});
App.settings=Ember.Object.extend({
isIndex: true,
isMonthly: false,
isYearly: false
});
Settings=App.settings.create();
//App.SettingsController = Ember.ObjectController.extend(Settings); Not sure whether to put this in or not
App.IndexRoute = Ember.Route.extend({
model: function() {
return Settings;
}
});
function goToMonthly(){
Settings.set('isIndex',false);
Settings.set('isMonthly',true);
Settings.set('isYearly',false);
}
function goToYearly(){
Settings.set('isIndex',false);
Settings.set('isMonthly',false);
Settings.set('isYearly',true);
}
function goToIndex(){
Settings.set('isIndex',true);
Settings.set('isMonthly',false);
Settings.set('isYearly',false);
}
So I'm not sure where the error is but if anyone can help,it'd be extremely appreciated.
There's a fundamental error in your approach here. Your Route/Controller are meant to handle the model for you, so by declaring your model outside of these objects, you're making more work for yourself and leading yourself to potential trouble.
I'm not seeing where your "goTo" functions are being called (I assume they're inside the partials, but if they're in that HTML and I missed it, that's my bad). But here's how they should be referenced:
App.SettingsController = Ember.ObjectController.extend({
actions:{
goToMonthly:function(){
this.set('isIndex', false);
this.set('isMonthly', true);
this.set('isYearly', false);
},
//Other functions go here
}
});
Then within your html, call these actions using handlebars:
<a {{action 'goToMonthly'}}> Click this to run the action </a>
Which ember version are you using? I tried it with ember 1.2 and 1.3 and your example is working fine.
Related
I designed a mockup for a website that has a sidebar with a menu that appears on mouseEnter, and disappears on mouseLeave. This was mocked up with jQuery, though now I'm trying to recreate this functionality using Ember. I have this working with mouseEnter correctly so far, but I can't figure out how to also bind mouseLeave.
From what I've read so far, implementing a View seems to be the answer though, since view's are deprecated I'm not sure how to go about this.
Here's what I have so far:
/app/controllers/sidebar.js
import Ember from 'ember';
export default Ember.Controller.extend({
title: 'Ticket Log',
menu_showing: false,
actions: {
toggleMenu: function () {
this.set('menu_showing', !this.get('menu_showing'));
console.log(this.get('menu_showing'));
}
}
});
/app/templates/sidebar.hbs
<div {{action "toggleMenu" on="mouseEnter"}} id="sidebar" class="panel panel-default">
{{#if menu_showing}}
<div id="sidebar-menu">
<div id="sidebar-menu-buttons">
<button id="sidebar-menu-toggle" type="button" class="btn btn-default glyphicon glyphicon-menu-hamburger"></button>
<button id="sidebar-menu-lock" type="button" class="btn btn-default glyphicon glyphicon-lock"></button>
</div>
<div id="sidebar-menu-pills" class="panel panel-default">
<div class="panel-body">
<ul class="nav nav-pills nav-stacked">
<li class="active">Ticket Log</li>
<li>Customer Info</li>
<li>Asset Info</li>
</ul>
</div>
</div>
</div>
{{/if}}
{{title}}
{{outlet}}
</div>
You are almost right. Views are deprecated but Components are not and they are extended from View.
Ember.Component.extend({
isMenuShowing: false,
mouseLeave() {
this.toggleProperty('isMenuShowing');
},
mouseEnter() {
this.toggleProperty('isMenuShowing');
},
});
I have a standard way in my ember app to display alert messages. I just pass it a string.
But now I want to include an ember link inside my message.
This is not working:
afterModel: function(model) {
if (model.length) {
this.send("addAlert", "Click {{#link-to 'reviews.show' 1}}here{{/link-to}} to see the review");
}
}
This is how the html is rendered:
{{#each alerts as |alert|}}
<div data-alert class="alert-box {{alert.state}} radius">
{{{alert.message}}}
<a class="close" {{action 'removeAlert' alert}}>x </a>
</div>
{{/each}}
With a handlebars tripple-thing {{{}}}
Any ideas on how to make this work?
I am new to meteor and i am wondering why is it myTemplate.helper is not rendering its supposed output when i started putting these files in my /client/template directory. These are the following files:
/clinent/template/body.html:
<body>
<div class="row">
<div class="col-xs-12">
<div class="list-group">
{{#each projects}}
{{> projectList}}
{{/each}}
</div>
</div>
</div>
</body>
/client/template/body.js:
Project = new Mongo.Collection("project");
if (Meteor.isClient) {
Template.body.helpers({
projects: function(){
var projects = Project.find({});
return projects;
}
});
};
/client/template/templates.html:
<template name="projectList">
<a href="#" id="{{id}}" class="list-group-item {{#if active}} active {{/if}}">
{{name}}
<i class="glyphicon glyphicon-trash pull-right del"></i>
</a>
</template>
However it is rendering the ouptut properly when i put body.html and body.js at the root / directory.
I think I know what the problem is.
Project = new Mongo.Collection("project");
Should be available to both client and server, when you move body.js to client folder it is automatically served only to client, and it breaks the app.
Try following structure:
/client/template/body.js:
Template.body.helpers({
projects: function(){
var projects = Project.find({});
return projects;
}
});
/collections.js
Project = new Mongo.Collection("project");
Note that you don't need if(Meteor.isClient) when creating files inside client folder.
I think it will work if you use
Template.projectList.helpers
instead of
Template.body.helpers
When the helper is for a template then you have to put the template name and not body.
I must not be doing something right. I have the following:
application.hbs
{{#view App.NavbarView}}{{/view}}
{{outlet}}
with the following template for Navbar
_navbar.hbs
<div class="toolbar">
<div class="row">
<div class="absolute top-left">
<button {{action "back"}} class="btn passive back"><i class="fa fa-play"></i></button>
</div>
{{#if hasTabs}}
<div class="small-centered columns">
<div class="tabs">
<ul>
{{#link-to 'stories' tagName="li" class="tab"}}<i class="fa fa-book"></i> Stories{{/link-to}}
{{#link-to 'mylevels' tagName="li" class="tab"}}<i class="fa fa-user"></i> My Levels{{/link-to}}
{{#link-to 'arcade.index' tagName="li" class="tab"}}<i class="fa fa-gamepad"></i> Arcade{{/link-to}}
</ul>
</div>
</div>
{{else}}
<div class="small-6 small-offset-3 columns">
<h2 class="title">{{ pageTitle App.currentPath }}</h2>
</div>
{{/if}}
{{#if currentUser.userName}}
<div class="absolute top-right">
<span class="user-hello">Welcome Back, <strong>{{ currentUser.userName }}</strong></span>
<button {{action "transitionAccount" currentUser._id}} class="square logged-in"><i class="fa fa-user"></i></button>
</div>
{{ else }}
<div class="absolute top-right">
<button {{action "transitionLogin"}} class="square logged-out"><i class="fa fa-user"></i></button>
</div>
{{/if}}
</div>
</div>
So all it is is a typical fixed navbar and in the middle of it I display what page you are on, if you happen to be on a page that has tabbed content, I show a tab container instead.
So I'm just using this.get('currentPath') in my App controller and comparing it against a group of route names to trigger true/false (I need an observer so it looks at the route change since the Navbar is in inline view at the Application level).
app.js
App.ApplicationController = Ember.ObjectController.extend({
updateCurrentPath: function() {
App.set('currentPath', this.get('currentPath'));
}.observes('currentPath'),
tabs: function() {
var route = this.get('currentPath'),
group = ['arcade.index', 'mylevels', 'stories', 'arcade', 'arcade.loading'];
console.log("ROUTE: ", route);
var tabs = group.indexOf(route) > -1 ? true : false;
return tabs;
}.observes('currentPath'),
// no idea what to do here
hasTabs: function() {
this.tabs();
}.property('tabs')
});
So, basically, no matter what, the tab UI is showing up, but I only want it to show up if that tabs observer is true. With some debugging I'm getting all the console output I would expect but I tried just doing {{#if tabs}} (just using the observer directly) and that always fires true (always shows the tabs UI). I assumed that's because it was an observer and not an actual controller property I could use in my template, so I tried just setting the hasTabs property and referencing the observer, but that doesn't seem to work. I realize I am fundamentally not understanding how this should work. Any thoughts?
If I understand your question correctly you should be able to just change your code to this (renamed tabs to hasTabs, removed previous hasTabs function. Changed from observes currentPath to be property of current path, removed the tabs variable assignment and replaced with the return, reduced the boolean conditional to the simple comparison operator). This is what I'd do, anyway. :) H2H
hasTabs: function() {
var route = this.get('currentPath'),
group = ['arcade.index', 'mylevels', 'stories', 'arcade', 'arcade.loading'];
return group.indexOf(route) > -1;
}.property('currentPath')
I'm new to ember I am trying to append a template to another and it seems to work but it raises an error, can you please explain why?
The error:
Assertion failed: You cannot append to an existing Ember.View. Consider using Ember.ContainerView instead
This is the code in app.js
App.NewStickie = Ember.View.extend({
click: function(evt){
var stickie = Ember.View.create({
templateName: 'stickie',
content: 'write your notes here'
});
stickie.appendTo('#stickies');
}
});
These are the contents of index.html
<script type="text/x-handlebars">
{{#view App.NewStickie}}
<button type="button" class="btn btn-success">
New
</button>
{{/view}}
{{outlet}}
</script>
<script type="text/x-handlebars" id="index">
<div id="stickies">
{{#each item in model}}
<div class="stickie" contenteditable="true">
{{#view App.DeleteStickie}}
<span class="glyphicon glyphicon-trash"></span>
{{/view}}
<div contenteditable="true">
{{item.content}}
</div>
</div>
{{/each}}
</div>
</script>
<script type="text/x-handlebars" data-template-name="stickie">
<div class="stickie">
{{#view App.DeleteStickie}}
<span class="glyphicon glyphicon-trash"></span>
{{/view}}
<div contenteditable="true">
{{view.content}}
</div>
</div>
</script>
Each view in ember have a template, for example:
foo_view.js
App.FooView = Ember.View.extend({
templateName: 'foo'
})
foo template
<script type="text/x-handlebars" data-template-name="index">
<div id=myFooView>Foo</div>
</script>
You are trying to insert a view inside of other in that way:
App.BarView.create().appendTo('#myFooView')
This isn't allowed. You can use the {{view}} handlebars helper to render a view inside other like that:
foo template
<script type="text/x-handlebars" data-template-name="index">
<div id=myFooView>
Foo
{{view App.BarView}}
</div>
</script>
But I think that you want this working dynamically. So you can use the ContainerView, like described by the error message:
App.StickiesView = Ember.ContainerView.extend({
click: function() {
var stickie = Ember.View.create({
templateName: 'stickie',
content: 'write your notes here'
});
this.pushObject(stickie);
}
})
I see in your code a lot of views with the click event, ember encourage you to use actions, this give more flexibility, error/loading handling etc. I think is a good idea to use it.
I hope it helps
You should probably read this guide that explains that ContainerView is. Also, I don't think it's necessary to create another View to append a template to another template.