Refs #32: filter papers by year

hpi-swt2-exercise · Nov 4, 2017 · ae359e1 · ae359e1
1 parent eb0376c
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diff --git a/app/controllers/papers_controller.rb b/app/controllers/papers_controller.rb
@@ -1,6 +1,11 @@
 class PapersController < ApplicationController
   def index
-    @papers = Paper.all
+    year = params[:year]
+    if year
+      @papers = Paper.created_in year
+    else
+      @papers = Paper.all
+    end
   end
 
   def new

diff --git a/app/models/paper.rb b/app/models/paper.rb
@@ -1,4 +1,5 @@
 class Paper < ActiveRecord::Base
+  scope :created_in, ->(year) { where('year == ?', year) }
   validates :title, :venue, :year, presence: true
   validates :year, numericality: { only_integer: true }
   has_and_belongs_to_many :authors