Initial commit

db/migrate/20210319142051_create_authors.rb

@@ -0,0 +1,12 @@
+class CreateAuthors < ActiveRecord::Migration[6.1]
+  def change
+    create_table :authors do |t|
+      t.string :first_name
+      t.string :last_name
+
+      t.timestamps
+    end
+
+    add_index :authors, [ :first_name, :last_name ]
+  end
+end

db/migrate/20210319142054_create_books.rb

@@ -0,0 +1,13 @@
+class CreateBooks < ActiveRecord::Migration[6.1]
+  def change
+    create_table :books do |t|
+      t.string :title
+      t.decimal :price, precision: 10, scale: 2
+      t.boolean :published
+
+      t.timestamps
+    end
+
+    add_index :books, :published
+  end
+end

db/migrate/20210319142059_create_authors_books.rb

@@ -0,0 +1,10 @@
+class CreateAuthorsBooks < ActiveRecord::Migration[6.1]
+  def change
+    create_table :authors_books do |t|
+      t.belongs_to :book
+      t.belongs_to :author
+
+      t.timestamps
+    end
+  end
+end