你如何强迫Ember重新渲染一个组件？

Question

I have an Ember component that uses jQuery to add a canvas chart. When I change routes, I get a new model, but Ember's automatic rerendering does not work in this case. In fact, I don't know how to make the component code which adds the chart re-run at all. How can I do this?

Would it work better if it was a view?

Answer 1

Without looking at code, I'm going to guess based on your statement of the model changing.

Component Currently

uiSetup: function(){
   // do magic here...
}.on('didInsertElement')

Component with observes

Assuming the model in the component is named model, this would fire every time the model changed as well as when the element was initially inserted into the page. You could also break it into two separate functions if you need it to act differently on model change vs element inserted first time.

uiSetup: function(){
   // do magic here...
}.on('didInsertElement').observes('model')