Javascript Rails模板无法正常工作

Question

I try to make an Ajax-based solution for web-store. So I have the Cart, and when user adds something, I want not to have all page reloaded, but only "Cart" template. (Line Item belongs to Cart) Create method in Line Item:

#usualstuff
respond_to do |format|
if @line_item.save
format.html { redirect_to(store_url) }
format.js
format.xml { render :xml => @line_item,
:status => :created, :location => @line_item }
else
...

Put the create.js file in /views/line_items

So here is the problem.

Actually it works. But when I click the button "Add to Cart", nothing changes, untill I reload page.

On server log is shown:

Rendered line_items/create.js (0.0ms)

0.0ms -for sure means something is wrong, but I can't figuare this out. Looks like rails just opens it and does nothing.

What may be the reason?

Code in create.js

page.replace_html('cart' , render(@cart))

Answer 1

you still need to write the actual ajax request in javascript or jquery to call the method on the controller to update the display.

ruby is a server side language and so you need to make an ajax call to the server to get the data you wish to use to update your page.

check this post out they seem to be doing something similar to what you are it may be of some use. if your unsure on what ajax is have a look at this link .

hope this helps somewhat.

Answer 2

因此.js / .rjs模板在Rails> 3.0中不起作用，应为.js.erb