Did you compile it with --fast?
EJS Views Helpers With Backbone-Rails
Backbone-Rails is a useful gem for setting up Backbone.js in your Rails 3.1 app by providing all the necessary javascript files & dependencies (easy future upgrades with bundler), as well as some generators to setup your MVC directory structure. It uses EJS (Embedded JavaScript, part of Underscore.js I believe) as it's default javascript templating language and installs the ruby-ejs gem as a dependency.
Now when you try to create some templates, there are two gotchas to watch out for. The first is that ruby-ejs doesn't include the actual EJS javascript file, which is necessary if you want to use EJS Views helpers in your templates. So, for example, if you wanted to use textfield_tag in edit.jst.ejs, their wiki would have you write:
<label for="name">Name:</label>
<%= text_field_tag("name", name) %>
<%= text_field_tag("name", name) %>
Which will give you an error. The solution is to download EJS from the website & throw it in /vendor/assets/javascripts. The second gotcha is that you have to fully-qualify the helper functions, at least in the generator-produced structure that I'm aware of, so the proper code is:
<label for="name">Name:</label>
<%= EJS.Helpers.prototype.text_field_tag("name", name) %>
<%= EJS.Helpers.prototype.text_field_tag("name", name) %>
So!
- Download the EJS Javascript files to /vendor/assets/javascripts
- Fully-qualify the helper functions as EJS.Helpers.prototype.whatever_tag
Or you could use Mustache / Handlebars (which I think I'll end up doing).
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