Add relation between courses and user

app/controllers/courses_controller.rb

@@ -22,6 +22,7 @@ def edit
   # POST /courses or /courses.json
   def create
     @course = Course.new(course_params)
+    @course.user = current_user
 
     respond_to do |format|
       if @course.save

app/models/course.rb

@@ -2,6 +2,7 @@ class Course < ApplicationRecord
   validates :title, presence: true
   validates :description, presence: true, length: { minimum: 5 }
 
+  belongs_to :user
   def to_s
     title
   end

app/models/user.rb

@@ -3,4 +3,10 @@ class User < ApplicationRecord
   # :confirmable, :lockable, :timeoutable, :trackable and :omniauthable
   devise :database_authenticatable, :registerable,
          :recoverable, :rememberable, :validatable
+
+  def to_s
+    email
+  end
+
+  has_many :courses
 end

app/views/courses/index.html.haml

@@ -7,6 +7,7 @@
     %tr
       %th Title
       %th Description
+      %th User
       %th
       %th
       %th
@@ -16,6 +17,7 @@
       %tr
         %td= course.title
         %td= course.description
+        %td= course.user
         %td= link_to 'Show', course
         %td= link_to 'Edit', edit_course_path(course)
         %td= link_to 'Destroy', course, method: :delete, data: { confirm: 'Are you sure?' }

db/migrate/20241012032156_add_user_to_courses.rb

@@ -0,0 +1,5 @@
+class AddUserToCourses < ActiveRecord::Migration[7.2]
+  def change
+    add_reference :courses, :user, null: false, foreign_key: true
+  end
+end

db/seeds.rb

@@ -1,6 +1,9 @@
+User.create!(email: 'admin@admin.com', password: 'Password1234', password_confirmation: 'Password1234')
+
 30.times do
   Course.create!([ {
     title: Faker::Educator.course_name,
-    description: Faker::TvShows::GameOfThrones.quote
+    description: Faker::TvShows::GameOfThrones.quote,
+    user_id: User.first.id
   } ])
 end