Implemented FeedController

Signed-off-by: Israel Barreto Sant'Anna <ibsa14@inf.ufpr.br>

app/controllers/concerns/paginator.rb

@@ -3,7 +3,8 @@ module Paginator
 
   def paginate (model)
     set_header model
-    model.limit(limit).offset(offset)
+    return model.limit(limit).offset(offset) if model.respond_to?('limit')
+    return model[offset..limit]
   end
 
   private

app/controllers/v1/feed_controller.rb

+class V1::FeedController < ApplicationController
+  include ::Paginator
+  before_action :authenticate_user!
+
+  # GET v1/feed
+  # GET v1/feed.json
+  # Render all activities that logged user can see
+  def index
+    activities = paginate activities_followed
+    render json: activities
+  end
+
+  private
+
+#TODO: Tests
+  def activities_followed
+    activities = []
+    types.each do |type|
+      model = type.classify.constantize
+      current_user.watching(type).each do |follow|
+        followed = model.find(follow.followable_id)
+        activities.push(*followed.activities.to_a)
+      end
+    end
+    p "--- BEGIN ---"
+    p activities
+    p "--- END ---"
+    activities
+  end
+
+  def types
+    ['User', 'Collection']
+  end
+end

app/models/concerns/followable.rb

@@ -10,4 +10,11 @@ module Followable
     Follow.where(followable: self)
   end
 
+  ## get all activities from user
+  # return an array of PublicActivity::Activity
+  def activities
+    condition = '(owner_type = :type AND owner_id = :id) OR (recipient_type = :type AND recipient_id = :id)'
+    PublicActivity::Activity.order('created_at DESC').where(condition, {type: self.class.to_s, id: self.id}).all
+  end
+
 end

app/models/user.rb

@@ -138,13 +138,6 @@ class User < ApplicationRecord
 
   # ~~~~ end followable actions ~~~~ #
 
-  ## get all activities from user
-  # return an array of PublicActivity::Activity
-  def activities
-    condition = '(owner_type = :type AND owner_id = :id) OR (recipient_type = :type AND recipient_id = :id)'
-    PublicActivity::Activity.order('created_at DESC').where(condition, {type: self.class.to_s, id: self.id}).all
-  end
-
   private
 
   def default_role

config/routes.rb

@@ -61,6 +61,7 @@ Rails.application.routes.draw do
 
   namespace :v1 do
     resources :activities, only: :index
+    resources :feed, only: [:index]
 
     resources :users, concerns: [:followable, :deletable] do
       member do