Data-binding between nested polymer elements

Question

Suppose I have two distinct polymer-elements

One should be embedded inside the other using the content placeholder. Is it possible to do

Answer 1

Polymer data-binding works by attaching a model to a whole subtree.

You wrote:

this implies a rule that the parentNode provides the binding model. But now imagine you wanted to write:

Now you have a problem.

Instead, in Polymer examples, you will notice that the {{}} are (almost always) inside of a template. For example, if I define:

Now, I have a model context (host-element) that I can use to bind things together in the entire subtree described by the template.

Note that I don't need attributes="data" for this to work. I added that so host-element exposes data and I can do this:

http://jsbin.com/IVodePuS/15/edit