Refs #20: Add save paper input to db

app/controllers/papers_controller.rb

@@ -1,5 +1,23 @@
 class PapersController < ApplicationController
   def new
-    #@paper = Paper.new()
+    @paper = Paper.new
+  end
+
+  def create
+    @paper = Paper.new(paper_params)
+    if @paper.save
+      redirect_to @paper
+    else
+      render 'new'
+    end
+  end
+
+  def show
+    @paper = Paper.find(params[:id])
+  end
+
+  private
+  def paper_params
+    params.require(:paper).permit(:title, :venue, :year)
   end
 end

app/views/papers/new.html.erb

@@ -1,6 +1,20 @@
 <h1>New paper</h1>
 <%= form_for :paper, url: papers_path do |f| %>
 
+    <% if @paper.errors.any? %>
+        <div id="error_explanation">
+          <h2>
+            <%= pluralize(@paper.errors.count, "error") %>
+            prohibits the author to be created
+          </h2>
+          <ul>
+            <% @paper.errors.full_messages.each do |msg| %>
+                <li><%= msg %></li>
+            <% end %>
+          </ul>
+        </div>
+    <% end %>
+
     <p>
       <%= f.label :title %><br>
       <%= f.text_field :title %>

app/views/papers/show.html.erb

@@ -0,0 +1,14 @@
+<p>
+  <strong>Title:</strong>
+  <%= @paper.title %>
+</p>
+
+<p>
+  <strong>Venue:</strong>
+  <%= @paper.venue %>
+</p>
+
+<p>
+  <strong>Year:</strong>
+  <%= @paper.year %>
+</p>

spec/features/paper/new_paper_spec.rb

@@ -19,10 +19,10 @@
     fill_in 'paper_venue', with: 'Mind 49: 433-460'
     fill_in 'paper_year', with: '1950'
 
-    expect(Paper.find_by_first_name('COMPUTING MACHINERY AND INTELLIGENCE')).to be_nil
+    expect(Paper.find_by_title('COMPUTING MACHINERY AND INTELLIGENCE')).to be_nil
 
     find('input[type="submit"]').click
 
-    expect(Paper.find_by_first_name('COMPUTING MACHINERY AND INTELLIGENCE')).not_to be_nil
+    expect(Paper.find_by_title('COMPUTING MACHINERY AND INTELLIGENCE')).not_to be_nil
   end
 end