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Objects on Rails Now that we've got persistence working, let's add a rudimentary. RESTful API to our blog.
This is the complete text of Objects on Rails, a "developer's notebook" documenting some guidelines, techniques, and ideas for applying classic object-oriented. No-registration upload of files up to 250MB. Not available in some countries.
For instance, a JSON representation of a. Normally, when rendering HTML representations, we render. But when we render JSON data, there typically is no. We'll address that code smell in an upcoming. In the absence of a template at .
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But Post doesn't know. Once. again, we need an object to mesh together information from a model. Once again, we need an Exhibit. But it would be tedious writing exhibits for each.
So instead, we'll write a generic. Links. Exhibit which will work for most objects we throw at it. When we serve a JSON representation of a blog post, we want to. Starcraft 2 Online Download Price on this page.
It will also augment the #to. Here's the code. class. Link. Exhibit < Exhibit. RELATIONS = %w. These methods are expected to return the model object.
By defining explicit finders (. First, we've used respond. Then we've included the Exhibits. Helper so as to. give the controller access to #exhibit. Finally, we've implemented.
Post, runs it through. In particular, does it work to pass a controller. Exhibits. Helper#exhibit? In this case, the only. Link. Exhibit, and the only helper. One of the things Links.
Exhibit will be calling. As you'll recall, Blog is just an ordinary object, not.
Active. Record. As such, Rails has no idea how to convert it to a. Let's fix that. Now that. Rails officially knows its name, when we pass a Blog object to. So all we have. to do now is define that helper. When. we create a few posts and then point curl at. Establishing a pattern here! I'm sure you can imagine how we might.
JSON version of the home page, which.