class BaseResource < JSONAPI::ResourceĬallbacks can be defined for the following JSONAPI::Resource events:īy default updates to relationships only invoke callbacks on the primary Resource. Resources must be derived from JSONAPI::Resource, or a class that is itself derived from JSONAPI::Resource.įor example: class ContactResource (context) : class Selfless < JSONAPI::ResourceĪctiveSupport::Callbacks is used to provide callback functionality, so the behavior is very similar to what you may be used to from ActiveRecord.įor example, you might use a callback to perform authorization on your resource before an action. ![]() So we have two models a User model and an Article model. Lets see its use-case scenerio: For example we are making a blog app in which we have a lot of articles and users who create those articles. ![]() Share Improve this answer Follow answered at 19:47 Meekohi 10. Rails comes preloaded with jbuilder gem which helps to create JSON structures. Thus, extra loop to get ids from the collection of ActiveRecord is saved while using the pluck method. Thus, Rails retrieved array of attribute values instead of array of ActiveRecord. It also selects only those attributes while querying. Take a look at your database schema to make sure you understand the layout and check that the query works before complicating it with Rails conventions. Pluck directly returns array of the attribute that we pass to it. For example, a Contact model’s resource should have a class named ContactResource defined in a file named contact_resource.rb. SELECT WHERE data->'count' > 500 FROM users will work. The file name should be the single underscored name of the model that backs the resource with _resource.rb appended. Resource definitions should by convention be placed in a directory under app named resources, app/resources. ![]() A resource defines which attributes are exposed, as well as relationships to other resources. Resources define the public interface to your API.
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