Rendering model via nested templates in Ember - ember.js

Question

I'm building an app with multiple todo lists. The todo list used to correctly show todo model.
But I added function() to stack router to wrap todos router (so that it would correctly render todos template in stack template).
Then todos/index template (which is rendered through the outlet in todos) stopped displaying todo model.
This is my router structure:
Todos.Router.map(function() {
this.resource('stacks', {path: '/stacks'});
this.resource('stack', {path: '/stacks/:stack_id'}, function () {
this.resource('todos', { path: '/todos/:todos_id' }, function () {
// additional child routes will go here later
this.route('active');
this.route('completed');
this.route('new');
});
this.resource('todo', { path: 'todo/:todo_id' });
});
});
Stack template which renders Todo template:
<script type="text/x-handlebars" data-template-name="stack">
<h1>
<label {{action "editStack" on="doubleClick"}}>{{stackTitle}}</label>
{{input
value=stackTitle
action="createStack"}}
<div>{{model.stackTitle}}</div>
</h1>
{{render 'todos' todo}}
</div>
</script>
Then this todo template has an outlet for todo/index:
<script type="text/x-handlebars" data-template-name="todos">
<div class="container-fluid">
<section id="main">
{{outlet 'todos/index'}}
{{outlet modal}}
{{input type="checkbox" id="toggle-all" checked=allAreDone}}
</section>
</div>
</script>
And todo/index template:
<script type="text/x-handlebars" data-template-name="todos/index">
<ul id="todo-list">
<li {{bind-attr class="todo.isCompleted:completed todo.isEditing:editing"}}>
{{#each todo in model itemController="todo"}}
{{#if todo.isEditing}}
{{edit-todo class="edit" value=todo.title focus-out="acceptChanges"
insert-newline="acceptChanges"}}
{{else}}
{{input type="checkbox" checked=todo.isCompleted class="toggle"}}
{{outlet}}
<button {{action 'openModal' 'modal' model}}>
<label {{action "editTodo" on="doubleClick"}}>{{todo.title}}</label>
</button>
{{/if}}
</li>
{{/each}}
</ul>
</script>
Routers:
Todos.TodosRoute = Ember.Route.extend({
model: function() {
return this.store.find('todo');
},
});
Todos.TodosIndexRoute = Ember.Route.extend({
model: function() {
return this.modelFor('todos');
},
});
I've tried using {{partial}} helper in case that was a problem, but it didn't seem to change much.
Maybe I'm missing something in todos/index router that I need to call data through nested templates?
I appreciate your help!

Answer 1

There's a lot going on here but I think the root of your problem is with the way that you're using render in your templates/stack.
Since your routes/todos route is nested inside your routes/stack route, you're going to want to use an outlet inside your templates/stack if you want any of the templates for the nested routes to be rendered.
When you use render 'todos' todo, you're saying to render templates/todos with the todo property from the controllers/stack as the model. This isn't going to use your routes/todos or routes/todos-index to set the model.
What you probably want is for your templates/stack to have an {{outlet}} that either the routes/todos or routes/todo is rendered into when you visit either of those routes.