Question

Does anyone have any advice or examples for doing validation with backbone.js and ruby on rails 2.x or 3.x?

Answer 1

I’ve been using the Backbone.validations plugin with great success. It allows you to define your validations just like you do in Rails models.

var ValidatingModel = Backbone.Model.extend({
  validate : {
    name : {
      required  : true,
      pattern   : /[a-zA-Z]+/,
      minlength : 3,
      maxlength : 100
    },
    age : {
      type: "number",
      min: 0,
      max: 200
    },
    email : {
      type: "email"
    },
    homepage : {
      type: "url"
    },
    occupation : {
      in : [
        "Lawyer",
        "Doctor",
        "Professor",
        "Economist"
      ]
    }
  }
});