Implement favoriting of projects

app/controllers/favorites_controller.rb

@@ -35,7 +35,14 @@ class FavoritesController < ApplicationController
   end
 
   def projects
+    @favorite_projects = FavoriteProject.where('user_id': current_user.id)
+                             .order(sort_column + " " + sort_direction)
+    @host = 'https://tiss.tuwien.ac.at'
+  end
 
+  def delete_project
+    FavoriteProject.find_by(id: params[:id]).destroy
+    redirect_back(fallback_location: projects)
   end
 
   private

app/models/favorite_project.rb

@@ -0,0 +1,5 @@
+class FavoriteProject < ApplicationRecord
+  self.primary_key = 'id'
+
+  validates :id, uniqueness: true
+end

app/views/favorites/projects.html.erb

@@ -1,3 +1,34 @@
 <%= render(:partial => "nav") %>
 
-<p>Fav Projects</p>
+<h1>Favorite Projects</h1>
+
+<% if !@favorite_projects[0].blank? %>
+  <div class="table_wrapper">
+    <table>
+      <tr>
+        <th><%= sortable "Title", "title" %></th>
+        <th><%= sortable "Registration Date", "created_at" %></th>
+        <th></th>
+        <th></th>
+      </tr>
+      <% for project in @favorite_projects %>
+        <tr>
+          <td>
+            <%= project['title'] %>
+          </td>
+          <td>
+            <%= project['created_at'] %>
+          </td>
+          <td>
+            <%= button_to 'Details', crawlers_projects_crawler_show_detail_url(:id => project['id']) %>
+          </td>
+          <td>
+            <%= button_to 'Delete', {:action => "delete_project", :id => project['id']}, :method => 'delete' %>
+          </td>
+        </tr>
+      <% end %>
+    </table>
+  </div>
+<% else %>
+  No favorite projects added yet!
+<% end %>

config/routes.rb

@@ -48,7 +48,7 @@ Rails.application.routes.draw do
     get 'theses'
     delete 'delete_thesis'
     get 'projects'
-    delete 'delete_projects'
+    delete 'delete_project'
   end
 
   # For details on the DSL available within this file, see https://guides.rubyonrails.org/routing.html

db/migrate/20200529081537_create_favorite_projects.rb

@@ -0,0 +1,12 @@
+class CreateFavoriteProjects < ActiveRecord::Migration[6.0]
+  def change
+    create_table :favorite_projects, id: false do |t|
+      t.integer :id, null: false
+      t.integer :user_id, null: false
+      t.string :title
+
+      t.timestamps
+    end
+    add_index :favorite_projects, :id, unique: true
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2020_05_25_132942) do
+ActiveRecord::Schema.define(version: 2020_05_29_081537) do
 
   create_table "favorite_courses", force: :cascade do |t|
     t.string "number", null: false
@@ -33,6 +33,15 @@ ActiveRecord::Schema.define(version: 2020_05_25_132942) do
     t.index ["tiss_id"], name: "index_favorite_people_on_tiss_id", unique: true
   end
 
+  create_table "favorite_projects", id: false, force: :cascade do |t|
+    t.integer "id", null: false
+    t.integer "user_id", null: false
+    t.string "title"
+    t.datetime "created_at", precision: 6, null: false
+    t.datetime "updated_at", precision: 6, null: false
+    t.index ["id"], name: "index_favorite_projects_on_id", unique: true
+  end
+
   create_table "favorite_theses", id: false, force: :cascade do |t|
     t.integer "id", null: false
     t.integer "user_id", null: false

test/fixtures/favorite_projects.yml

@@ -0,0 +1,11 @@
+# Read about fixtures at https://api.rubyonrails.org/classes/ActiveRecord/FixtureSet.html
+
+# This model initially had no columns defined. If you add columns to the
+# model remove the '{}' from the fixture names and add the columns immediately
+# below each fixture, per the syntax in the comments below
+#
+one: {}
+# column: value
+#
+two: {}
+# column: value

test/models/favorite_project_test.rb

@@ -0,0 +1,7 @@
+require 'test_helper'
+
+class FavoriteProjectTest < ActiveSupport::TestCase
+  # test "the truth" do
+  #   assert true
+  # end
+end