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false t.string :address, :address2, :locality, :region, :country, :postal_code t.string :website, :email, :company t.timestamps end create_table :profiles do |t| t.integer :user_id t.integer :contact_id t.timestamps end (from [ecc9b705d7d12f853c794ca564b8e72995563eae]) Allow ho:through#build when the owner is a new record [#1749 state:resolved] Signed-off-by: Pratik Naik [email protected]

Recently, I have been involved in a couple of projects where we use a lot of Backbone.js, and even though I'm still learning, I can definitively help you out with the basics on how to code a basic CRUD with Backbone and Rails.

So, if you are not familiar with the framework and want to learn how to use backbone in your projects go ahead and check out this little tutorial where we'll be creating a basic blog. If you are not familiar with coffescript, take a look at this post from one of my fellas.

- Collection Backbone collections are simply an ordered set of models.- View If you think this is the place where you put all the layouts like in rails, well its not.This is where you bind all the Javascript events to the layout objects.- Template This one is simple, templates are like a rails views where you put all your layouts.That's how the template can read the values to use them in the layout.

In ejs template you can see how we tell it to change the text according to the value in the keys 'title' and 'content': e.prevent Default() Propagation() title = $('#title').val() content = $('#content').val() model = new Blog. Post({title: title, content: content}) @collection.create model, success: (post) = Well, the only new thing here is the save method, but, it is pretty straight forward.If you read carefully, you can see we are getting the values using j Query and then we create an instance of our Post model with the given values, then, we use the create method of the backbone collection that sends a POST request to the server and saves a record.- Router This one handles the browser url box so we can trigger events when a route matches right after a hash tag (#).First let's create our rails project: Now we have to include Backbone within our rails application, but, instead of downloading the file and put it into the assets folder manually, we are going to install the backbone-rails gem, so, now let's open our The gem itself comes packed with some a fancy scaffold generator that almost does all the work for you, but, we'll put this aside and start everything from scratch, so, lets start with this generator that creates the basic structure for our backbone files: mkdir app/assets/javascripts/backbone/views/posts mkdir app/assets/javascripts/backbone/templates/posts touch app/assets/javascripts/backbone/views/posts/index_coffee touch app/assets/javascripts/backbone/views/posts/post_coffee touch app/assets/javascripts/backbone/views/posts/new_coffee touch app/assets/javascripts/backbone/views/posts/edit_coffee touch app/assets/javascripts/backbone/views/posts/show_coffee touch app/assets/javascripts/backbone/templates/posts/ejs touch app/assets/javascripts/backbone/templates/posts/ejs touch app/assets/javascripts/backbone/templates/posts/ejs touch app/assets/javascripts/backbone/templates/posts/ejs touch app/assets/javascripts/backbone/templates/posts/ejs This creates a new instance of our Router which will handle the whole CRUD. We have to bind events and create the layouts using both views and templates.The backbone views have attributes like the models and collections, let's see what these are for.As you can see we are binding a destroy action when the user clicks something with the class destroy within a tr, and something new here is that when we render the template we are sending the model as JSON.